EP0642576A1 - Verfahren zur kontinuierlichen herstellung eines granularen wasch- und/oder reinigungsmittels. - Google Patents
Verfahren zur kontinuierlichen herstellung eines granularen wasch- und/oder reinigungsmittels.Info
- Publication number
- EP0642576A1 EP0642576A1 EP93909975A EP93909975A EP0642576A1 EP 0642576 A1 EP0642576 A1 EP 0642576A1 EP 93909975 A EP93909975 A EP 93909975A EP 93909975 A EP93909975 A EP 93909975A EP 0642576 A1 EP0642576 A1 EP 0642576A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- granules
- granulator
- mixer
- constituents
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 230000003472 neutralizing effect Effects 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- SXLLDUPXUVRMEE-UHFFFAOYSA-N nonanediperoxoic acid Chemical compound OOC(=O)CCCCCCCC(=O)OO SXLLDUPXUVRMEE-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 238000006384 oligomerization reaction Methods 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 150000004967 organic peroxy acids Chemical class 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- WSHYKIAQCMIPTB-UHFFFAOYSA-M potassium;2-oxo-3-(3-oxo-1-phenylbutyl)chromen-4-olate Chemical compound [K+].[O-]C=1C2=CC=CC=C2OC(=O)C=1C(CC(=O)C)C1=CC=CC=C1 WSHYKIAQCMIPTB-UHFFFAOYSA-M 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000012418 sodium perborate tetrahydrate Substances 0.000 description 1
- IBDSNZLUHYKHQP-UHFFFAOYSA-N sodium;3-oxidodioxaborirane;tetrahydrate Chemical compound O.O.O.O.[Na+].[O-]B1OO1 IBDSNZLUHYKHQP-UHFFFAOYSA-N 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229940012831 stearyl alcohol Drugs 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical class CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/0082—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/0082—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
- C11D11/0088—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads the liquefied ingredients being sprayed or adsorbed onto solid particles
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
- C11D17/065—High-density particulate detergent compositions
Definitions
- the invention relates to a process for the continuous production of granular detergents and / or cleaning agents, non-dusting and non-greasing granules being obtained by suitably selected process conditions, which preferably have a bulk density of between 600 and 1000 g / l.
- the prior art knows a number of proposals for the batchwise or continuous production of compacted granules.
- granulations in a high-speed, high-speed mixer / granulator are disclosed in European patent applications 351 937 and 339996.
- EP 390251 describes a two-stage granulation process in which 0.1 to 40% by weight of the solid starting material is added after the first granulation stage (high-speed mixer / granulator) and, if appropriate, during the second granulation stage (slow-running mixer / granulator).
- a common feature of these known processes is that the granules obtained by them have a bulk density of between about 600 and 900 g / l, but tend to cake, stick together and become greasy if the processes are not almost anhydrous and / or essentially free of nonionic surfactants and / or be carried out in a certain temperature range.
- the bulk density can only be set to a small extent in a targeted manner.
- the object was therefore to provide a process for the continuous production of non-dusting and non-greasy granular detergents and / or cleaning agents which do not tend to caking and sticking and which contain substantial amounts of anionic surfactants and nonionic surfactants.
- This method should also make it possible to set the bulk density of the granules in a targeted manner and to produce granules with a relatively low proportion of coarse particles.
- the invention accordingly relates to a process for the continuous production of a granular washing and / or cleaning agent with a high bulk density by means of two-stage granulation in two consecutive mixers / granulators, 40 to 100% by weight in a first, low-speed mixer / granulator. %, based on the total amount of the solid and liquid constituents used, of the solid and liquid constituents pre-granulated and, in a second, high-speed mixer / granulator, the pre-granules from the first process stage are optionally mixed with the remaining solid and / or liquid constituents and is converted into granules, the proportion of the granules with a diameter above 2 mm being less than 25% by weight.
- a special feature of the process according to the invention is that in the two-stage granulating process, in which a low-speed and a high-speed mixer / granulator are used, in contrast to the known processes of the prior art, the first part of the granulation in a low-speed mixer / Granulator and only the second part is carried out in a high-speed mixer / granulator, the process conditions in the high-speed mixer / granulator being adjusted depending on the requirements of the desired granulate so that the The first, low-speed mixer / granulator, the resulting granulate is not adhesive, but is nevertheless plastic to the extent that it can be deformed to compress it. As a result, the proportion of coarse-grain granules formed in the first low-speed mixer / granulator can be largely reduced without the coarse-grain fraction being ground or pulverized.
- all mixers / granulators through which the product flows horizontally can be used in the first granulation stage, in which the product is moved in the mixer room by mixing tools.
- the granulation can be accelerated by knife heads located in the lower part of the mixer drum.
- the granulation in these mixers / granulators is possible at peripheral speeds of the mixing tools between 2 m / s and 7 m / s and is preferably carried out at peripheral speeds between 4 m / s and 5 m / s.
- Low-speed mixers / granulators which are preferably used are, for example, the ploughshare mixers from Lödige (Federal Republic of Germany) and the intensive mixers from IMCATEC (Federal Republic of Germany).
- the first granulation stage is preferably carried out in a time of 0.5 to 10 minutes, average residence times in the first granulation stage between 1 and 6 minutes being preferred.
- the high-speed mixer / granulator used is mixers / granulators through which the mixture to be granulated flows vertically and whose mixing tools can be operated at peripheral speeds of at least about 8 m / s. It is preferred that the product is arranged in a spiral downward annular layer along the wall of the mixing chamber at a peripheral speed of the mixing tools due to a rapidly rotating shaft concentrically arranged in a cylindrical mixing chamber and on which the mixing tools are in the form of mixing knives or beaters from 8 m / s to 35 m / s, preferably at peripheral speeds of 12 m / s to 30 m / s, is transported to the mixer outlet.
- a suitable high-speed mixer / granulator is, for example, the ring-layer mixer from Schugi (Netherlands).
- the second stage of granulation is generally run through in a significantly shorter time than the first granulation stage, for example up to 30 seconds.
- Preferred granulation times in the second granulation stage are 0.1 to 10 seconds and in particular 0.5 to 2 seconds.
- the sequence of the granulation steps defined according to the invention makes it possible, by the choice of the process conditions and by the type of distribution of the liquid components, to almost any desired granulation level Set bulk density between 600 and 1100 g / 1.
- the parameter of the first granule stage through the variation of which the bulk density can be influenced, is the energy input to the mixture to be granulated, a high energy input being achieved over long dwell times and over the number and speed of the cutter heads to be used. Heavy granules are obtained through high energy inputs.
- the second pelletizing stage in which the peripheral speeds of the mixing tools and the energy input are increased by increasing the speeds of the mixer shaft, which leads to an increase in the bulk density in addition to the reduction of coarse particles.
- Another parameter by means of which the bulk density can be changed at least slightly, for example by approximately 30 to 80 g / 1, in particular up to 60 g / 1, is the temperature of the pre-granulate (this is the granulate that is in the first Granulation stage was obtained) when entering the second granulation stage.
- Temperatures of the pre-granules of at most 90 ° C., in particular from 30 to 60 ° C., are preferred, higher temperatures leading to lower bulk densities compared to lower temperatures in the order of magnitude specified above.
- the most important parameter for setting the bulk density is the addition of the liquid constituents, which simultaneously serve as granulating liquid and which are added either only in the first, low-speed mixer / granulator or partly in the low-speed mixer / granulator and partly in the high-speed mixer / granulator can.
- the general rule here is that by adding granulating liquids alone in the first, low-speed mixer / granulator, higher Bulk weights, for example between 800 and 950 g / 1, can be achieved, while for setting lower bulk weights, for example bulk weights between 600 and 800 g / 1, it is advisable to add part of the granulating liquid only in the second, high-speed mixer / granulator.
- granules with a bulk density of about 850 g / l were obtained for a special recipe by adding the entire granulating liquid in the first mixer / granulator.
- granules with a bulk density of 680 g / l were obtained for the same formulation.
- granules with a bulk density of between 600 g / 1 and 570 g / 1 were obtained for the same recipe.
- some of the solid components - either alone or in addition to the part of the granulating liquid - can only be used in the high-speed mixer / granulator.
- the general rule here is that by adding solids, in particular finely divided solids such as zeolite powder, for example Wessalith p ( R ) (commercial product from Degussa, Federal Republic of Germany), sodium sulfate or sodium carbonate, in the second mixer / graphite nulator the bulk weight can be increased.
- the addition of solids in the second granulation stage can also serve to improve the further processability of the granules and the flow properties of the finished granules.
- the solid and liquid constituents are pregranulated in the first mixer / granulator and then with 0 to 60% by weight, preferably 5 to 40% by weight of remaining solid and / or liquid constituents are mixed in the second mixer / granulator and then transferred to the finished, but not yet dried and therefore possibly still moist granules.
- the solid constituents can be introduced into the process as powders or granules which have been obtained by granulation or spray drying and have a bulk density of, for example, 200 to 600 g / l.
- the powders are usually individual components, for example zeolite, sodium carbonate, tripolyphosphate, water glass or sodium sulfate, while the granules preferably contain several components, mostly also small components and liquid feedstocks. Powder alone or granules alone can be used.
- the constituents used in the granulation in the first mixer / granulator preferably 10 to 100% by weight and in particular 40 to 100% by weight, in each case based on those in the first Solid components used in the mixer / granulator are used as granules.
- solid ingredients of detergents and / or cleaning agents can be used as solid constituents.
- Preferred solid constituents are anionic surfactants, builder substances, alkaline and neutral salts, bleaching agents and graying inhibitors.
- Preferred surfactants of the sulfonate type are Cg-Ci3-alkylbenzenesulfonates, olefin sulfonates, i.e. Mixtures of alkene and hydroxyalkanesulfonates and disulfonates, such as those obtained, for example, from Ci2-Ci8 monoolefins with a terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acid hydrolysis of the sulfonation products. Also suitable are alkanesulfonates obtained from Ci2-8 alkanes, for example by sulfochlorination or sulfoxidation with subsequent hydrolysis or neutralization.
- Preferred anionic surfactants are also the salts of alkylsulfosuccinic acid, which are also referred to as sulfosuccinates or as sulfosuccinic acid esters, and the monoesters and / or diesters of sulfosuccinic acid Alcohols, preferably fatty alcohols and especially ethoxylated fatty alcohols.
- Preferred sulfosuccinates contain C ⁇ to Ciß fatty alcohol residues or mixtures thereof.
- Particularly preferred sulfosuccinates contain a fatty alcohol residue which is derived from ethoxylated fatty alcohols, which in themselves are nonionic surfactants (description see below).
- sulfosuccinates whose fatty alcohol residues are derived from ethoxylated fatty alcohols with restricted homolog distribution are particularly preferred.
- esters of ⁇ -sulfo fatty acids e.g. the ⁇ -sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.
- Suitable surfactants of the sulfate type are the sulfuric acid monoesters from primary alcohols of natural and synthetic origin, in particular from fatty alcohols, for example from coconut oil alcohol, tallow fatty alcohol, oleyl alcohol, lauryl, myristyl, cetyl or stearyl alcohol, or the CiQ-C20-0xoal alcohol alcohols, and those of secondary alcohols of this chain length.
- Fatty alcohol mixtures which may additionally contain proportions of unsaturated alcohols, for example oleyl alcohol, are also preferred.
- Suitable anionic surfactants are, in particular, soaps, preferably in amounts of 0.5 to 8% by weight.
- Saturated fatty acid soaps are suitable, such as the salts of lauric acid, myristic acid, palmitic acid or stearic acid, and in particular soap mixtures derived from natural fatty acids, for example coconut, palm kernel or tallow fatty acids.
- the anionic surfactants can be present in the form of their sodium, potassium or ammonium salts and as soluble salts of organic bases, such as mono-, di- or triethanolamine.
- the anionic surfactants are preferably in the form of their sodium or potassium salts, in particular in the form of the sodium salts.
- the anionic surfactants are preferably used in amounts of 3 to 25% by weight, in particular in amounts of 10 to 20% by weight, based in each case on the sum of the constituents used. However, their content can also exceed 15% by weight.
- Preferred anionic surfactants are fatty alkyl sulfates, alkylbenzenesulfonates, sulfosuccinates and mixtures thereof, such as mixtures of fatty alkyl sulfates and sulfosuccinates or fatty alkyl sulfates and fatty alkylbenzenesulfonates, especially in combination with soap. It is particularly preferred that at least some of the sulfonate and / or sulfate surfactants are not used as a solid component, but in liquid form as a component of the granulating liquid.
- the known zeolites and phosphates are particularly suitable as builder substances.
- Their content is preferably 20 to 60% by weight, in particular 20 to 50% by weight, in each case based on the sum of the constituents used and calculated as an anhydrous active substance.
- the fine crystalline, synthetic and bound water-containing zeolite used is preferably zeolite NaA in detergent quality. It is preferably used as a spray-dried powder.
- Preferred zeolites have an average particle size of less than 10 ⁇ m (volume distribution; measurement method: Coulter Counter) and preferably contain 20 to 22% by weight of bound water.
- Usable organic builders are, for example, the polycarboxylic acids preferably used in the form of their sodium salts, such as citric acid, succinic acid, glutaric acid, adipic acid, tartaric acid and nitrilotriacetic acid (NTA), provided that such use is not objectionable for ecological reasons, and mixtures of these.
- Polymeric polycarboxylates come into consideration as further organic builder substances. _.
- Suitable polymeric polycarboxylates are, for example, the sodium salts of polyacrylic acid or polymethacrylic acid, for example those with a relative molecular weight of 800 to 150,000 (based on acid).
- Suitable copoly ere polycarboxylates are in particular those of acrylic acid with methacrylic acid and acrylic acid or methacrylic acid with maleic acid. Copolymers of acrylic acid with maleic acid which contain 50 to 90% by weight of acrylic acid and 50 to 10% by weight of maleic acid have proven to be particularly suitable. Copolymers in which 60 to 85% by weight of acrylic acid and 40 to 15% by weight of maleic acid are present are particularly preferred.
- Their relative molecular weight, based on free acids is generally 5,000 to 200,000, preferably 10,000 to 120,000 and in particular 50,000 to 100,000.
- the content of (co) polymeric polycarboxyates in the agents is preferably 0.5 to 8% by weight.
- polyacetals which can be obtained by reacting dialdehydes with polyolcarboxylic acids which have 5 to 7 carbon atoms and at least 3 hydroxyl groups, for example as described in European patent application 280223.
- Preferred polyacetals are obtained from dialdehydes such as glyoxal, glutaraldehyde, terephthalaldehyde and their mixtures and from polyol carboxylic acids such as gluconic acid and / or glucoheptonic acid.
- the alkaline salts used with preference include water-soluble inorganic salts such as bicarbonates, carbonates, silicates or mixtures thereof; in particular, alkali carbonate and alkali silicate, especially sodium silicate with a molar ratio of 1: 1 to 1: 4.5, used.
- the sodium carbonate content of the agents is preferably up to 20% by weight, advantageously between 1 and 15% by weight.
- the content of sodium silicate in the agents, for example amorphous or crystalline sodium disilicate is generally up to 10% by weight and preferably between 2 and 8% by weight.
- sulfates are used, this is preferably done in amounts between 15 and 40% by weight, based on the finished granulate. However, processes in which no sulfate is used are also preferred.
- the sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance.
- Further bleaching agents which can be used are, for example, sodium percarbonates, peroxypyrophosphates, citrate perhydrates and H2O2-providing peracidic salts or peracids such as perbenzoates, peroxaphthalates, diperazelaic acid or diperdodecanedioic acid.
- the bleach content of the agents is preferably 5 to 25% by weight and in particular 10 to 20% by weight, based on the finished granules.
- the bleaching agents can be added either in the granulation process according to the invention or in a subsequent processing step.
- bleach preferably percarbonate and perborate
- their addition is preferably carried out in the second granulation, the granule temperature to 70 ° C should not exceed. This can be achieved if appropriate by cooling.
- Graying inhibitors have the task of keeping the dirt detached from the fiber suspended in the liquor and thus preventing graying.
- Water-soluble colloids of mostly organic nature are suitable for this, for example the water-soluble salts of polymeric carboxylic acids, glue, gelatin, salts of ether carboxylic acids or ether sulfonic acids of starch or cellulose or salts of acidic sulfuric acid esters of cellulose or starch.
- Water-soluble polyamides containing acidic groups are also suitable for this purpose. Soluble starch preparations and starch products other than those mentioned above can also be used, for example degraded starch, aldehyde starches etc.
- Carboxymethyl cellulose, methyl cellulose, methyl hydroxyethyl cellulose and mixtures thereof and polyvinylpyrrolidone are preferably used in amounts between 0.1 and 5% by weight, in particular up to 3% by weight.
- a granulating liquid which either consists only of pure liquid constituents or mixtures thereof or which contains solid constituents in dissolved and / or suspended form.
- the granulating liquid is preferably used in amounts of 5 to 30% by weight, based on the total amount of the constituents used. Overall, it can only be used in the first mixer / granulator or partly in the first mixer / granulator and partly in the second mixer / granulator. It is preferred that, depending on the desired bulk density, 0 to 20% by weight, preferably up to 10% by weight, based in each case on the total amount of the constituents used, of granulating liquid is added in the second, high-speed mixer / granulator .
- the granulating liquid preferably consists of liquid constituents of washing and / or cleaning agents or of water, of aqueous solutions and / or of mixtures, the aqueous solutions per se solid constituents and liquid constituents of detergents and / or Detergents included.
- the liquid constituents of detergents and / or cleaning agents include, in particular, nonionic surfactants which, at the process temperature, are in liquid, i.e. pumpable and flowable form.
- nonionic surfactants preferably include addition products of 1 to 12 moles of ethylene oxide with primary Ci2-Ci8 fatty alcohols and their mixtures such as coconut, tallow or oleyl alcohol, or with primary alcohols branched in the 2-position methyl (oxo alcohols).
- Ci2-Ci4 alcohols with 3 EO or 4 EO Cg-Cn alcohol with 7 EO
- the degrees of ethoxylation given represent statistical mean values which, for a specific product, are an integer or a fraction can.
- Preferred alcohol ethoxylates have a restricted homolog distribution (narrow range ethoxylates, NRE).
- the content of the ethoxylated fatty alcohols in the finished granules is preferably 5 to 15% by weight.
- the liquid nonionic surfactants are used in a mixture with lower polyalkylene glycols which are derived from straight-chain or branched glycols having 2 to 6 carbon atoms.
- Preferred lower polyalkylene glycols are polyethylene glycols or polypropylene glycols which have a relative molecular mass between 200 and 12,000, in particular between 200 and 4,000, for example up to 2,000.
- the weight ratio of liquid nonionic surfactant to lower polyalkylene glycol in these mixtures is preferably 10: 1 to 1: 1.
- the preferred aqueous mixtures also include aqueous alkyl glycoside pastes in which alkyl glycosides of the general formula R0 (G) x are used, in which R is a primary straight-chain or aliphatic radical with 8 to 22, preferably 12 to 18 C, methyl-branched in the 2-position -Atoms means and G is the symbol which stands for a glycose unit with 5 or 6 carbon atoms, preferably for glycose.
- the degree of oligomerization X which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10 and is preferably 1.2 to 1.4.
- the preferred aqueous solutions include the solutions of (co) polymeric polycarboxylates already mentioned. They are preferably metered into the first, low-speed mixer / granulator in order to obtain heavy granules. A reduction in the bulk density can preferably be achieved by adding this solution in the second, high-speed mixer / granulator.
- aqueous suspensions of zeolites which preferably contain stabilizers for these suspensions, can preferably be used in the first, low-speed mixer / granulator.
- concentrated aqueous anionic surfactant solutions and anionic surfactant pastes is also particularly preferred. These are preferably by neutralizing the Anionic surfactants in their acid form with highly concentrated aqueous bases, for example a 45 to 55% by weight sodium hydroxide solution, are produced in a commercially available rotor-stator machine, for example a Supraton (R), or a stirred kettle.
- nonionic surfactants are particularly preferred, the nonionic surfactants preferably being used in amounts such that the viscosity of the anionic surfactant pastes is reduced and thus their processability, in particular pumpability and flowability, is improved.
- These mixtures have a pH of at least 7.0, preferably from 7.5 to 12, and are added as constituents of the granulating liquid either in the first or in the second mixer / granulator. It is preferred that 8 to 20% by weight, preferably 10 to 18% by weight, based in each case on the total amount of the constituents used, of these anionic surfactant / nonionic surfactant mixtures are added in particular in the first, low-speed mixer / granulator .
- a drying stage can be added. This is not necessary if the granulating liquid contains no water, or is not absolutely necessary if the granulating liquid contains water only in small amounts, for example up to 12% by weight, based on the total amount of the constituents used. The amount of water tolerable without drying depends heavily on the overall composition. However, if the granulating liquid contains water, irrespective of the amount, the subsequent drying step is preferred. In particular, this drying is carried out in the fluidized bed at supply air temperatures below 180 ° C. The granulating liquid preferably contains only so much water that under these conditions a maximum of 15% by weight, based on the total amount of the constituents used, of water evaporate.
- the continuous process according to the invention is not only distinguished by the fact that it enables the desired setting of a desired bulk density of the granules produced; granules are also obtained which are distinguished by a very homogeneous grain spectrum with small coarse grain fractions, the fraction of granules with a diameter above 2 mm and in particular above 1.6 mm being preferred is a maximum of 12% by weight and in particular a maximum of 10% by weight (sieve analysis).
- Existing coarse-grained fractions that is to say granules with a diameter above 2 mm, preferably with a diameter above 1.6 mm, are preferably screened off and can advantageously be returned to the continuous production process after comminution, for example in a mill. It is preferred to return the comminuted coarse-grained fractions to the sieve and thus to feed further finished granules.
- the granules obtained by the process according to the invention can be used directly as detergents and / or cleaning agents and / or they are mixed with further amounts, preferably small amounts; For example, in the range from 2 to 10% by weight, based on the total amount of the constituents used, of liquid nonionic surfactants or nonionic surfactant mixtures are sprayed in a manner known per se and / or they are mixed with further constituents, preferably granular and in particular, granular and compacted components of detergents and cleaning agents are mixed.
- the other granular constituents include, for example, compacted bleach or bleach activator granules, enzyme granules, foam inhibitor granules, preferably concentrated foam inhibitor granules and granular carriers for colorants and fragrances.
- Bleach activators used are, for example, N-acyl or O-acyl compounds which form organic peracids with H2O2, preferably N, N'-tetraacylated diamines, furthermore carboxylic acid anhydrides and esters of polyols such as glucose pentaacetate.
- the bleach activator content of the bleach-containing agents is in the usual range, preferably between 1 and 10% by weight and in particular between 2 and 8% by weight.
- Particularly preferred Bleach activators are N, N, N ', N'-tetraacetylethylene diamine (TAED) and 1,5-diacetyl-2,4-dioxo-hexahydro-1,3,5-triazine (DADHT).
- Suitable enzymes are those from the class of proteases, lipases, aylases, cellulases or mixtures thereof. Enzymes obtained from bacterial strains or fungi such as Bacillus subtilis, Bacillus licheniformis and Strepto yces griseus are particularly suitable. Proteases of the subtilisin type and in particular proteases which are obtained from Bacillus lentus are preferably used. Their proportion can be about 0.2 to about 2% by weight. The enzymes can be adsorbed on carriers and / or embedded in Hü11 substances to protect them against premature decomposition.
- Suitable stabilizers in particular for per-compounds and enzymes, are, for example, the salts of polyphosphonic acids, in particular 1-hydroxyethane-l, l-diphosphonic acid (HEDP).
- HEDP 1-hydroxyethane-l, l-diphosphonic acid
- Suitable foam inhibitors are, for example, soaps of natural or synthetic origin, which have a high proportion of Ci8-C24 fatty acids.
- Suitable non-surfactant-like foam inhibitors are, for example, organopolysiloxanes and their mixtures with microfine, optionally silanized silica, and paraffins, waxes, microcrystalline waxes and their mixtures with silanized silica. Mixtures of different foam inhibitors are also advantageously used, e.g. those made of silicones, paraffins or waxes. It is also possible for silicone oils and / or paraffin oils to be used in the two-stage granulation process according to the invention and preferably in the first, low-speed mixer / granulator.
- the other constituents of detergents also include optical brighteners.
- the agents can contain derivatives of diaminostilbenedisulfonic acid or its alkali metal salts. Suitable are, for example, salts of 4,4'-bis (2-anilino-4-morpholino-l, 3,5-triazine-6-yl-amino) stilbene-2,2'-disulfonic acid or similarly structured ver ⁇ bonds that replace the morpholino group with a diethanolamino group, a methylamino group, an anilino group or a Wear 2-methoxyethylamino group.
- Brighteners of the substituted 4,4'-distyryl-di-phenyl type may also be present, for example the compound 4,4'-bis (4-chloro-3-sulfostyryl) diphenyl. Mixtures of the aforementioned brighteners can also be used. Particularly uniform white granules are obtained if, in addition to the usual brighteners, the agents are used in customary amounts, for example between 0.1 and 0.5% by weight, preferably between 0.1 and 0.3% by weight, even small amounts. contains, for example, 10 ⁇ 6 to 10 ⁇ 3 % by weight, preferably around 10 "5% by weight, of a blue dye.
- a particularly preferred dye is Tinolu ⁇ ( R ) (commercial product from Ciba-Geigy).
- optical brighteners or the mixtures of optical brightener and dye are preferably dissolved in ethoxylated nonionic surfactants and sprayed onto the granules produced by the process according to the invention in a known manner.
- the granular detergents and / or cleaning agents produced in this way and having advantages generally have a bulk density between 600 and 1100 g / 1, preferably between 700 and 950 g / 1 and, after the coarse grain portions have been sieved, preferably above 1.6 mm in particular between 750 and 850 g / l.
- the granules are non-greasy, dust-free and, after drying, if appropriate, have a proportion of granules with a diameter above 1.6 mm of a maximum of 25% by weight, preferably a maximum of 20% by weight .-% and in particular from 6 to 12 wt .-%, which is screened and recycled.
- the content of anionic and nonionic surfactants in the granules is preferably 10 to 40% by weight and in particular 15 to 30% by weight, in each case based on the finished granules, and 20 to 60% by weight, preferably 25 up to 55% by weight, based on the finished granulate and calculated as an anhydrous active substance, of builder substances.
- the finished granules have a content of 7 to 15% by weight of nonionic surfactants and 0 to 20% by weight, preferably 0 to 10% by weight, of free, ie non-chemically or non-physically bound Water on. Examples
- the fill level of this low-speed mixer was about 50%.
- the residence time of the ingredients in this mixer was about 3 minutes.
- the pre-granules were then granulated in a Schugi ring bed mixer for a maximum of 1 second at circumferential speeds of the ring bed of approximately 30 m / s and at temperatures of 35 ° C. and dried in a fluidized bed at supply air temperatures of 130 ° C.
- the finished non-greasy, free-flowing and non-dusting granulate had a bulk density of 860 g / 1.
- the proportion of the dried granules with a diameter above 1.6 mm was below 12% by weight before sieving.
- the spray-dried granules used in the low-speed mixer / granulator had the following composition:
- Example 1 was repeated. However, the pre-granulate was produced without the Sokalan C R ) CP 5 solution. The sokalan was added in the form of a 30% by weight aqueous solution via nozzles during the second granulation step. The bulk density of these granules after drying and after sieving was 720 g / l. The coarse grain fraction above 1.6 mm was 6% by weight.
- Example 2 was repeated. However, the second granulation step was carried out at peripheral speeds of the annular layer of 17 m / s. The bulk density of these granules after drying and after sieving was 621 g / l. The coarse grain fraction above 1.6 m was 21% by weight.
- Example 4
- Example 1 was repeated.
- the temperature of the pre-granulate was 48 ° C. when entering the second granulation stage.
- the bulk density of these granules was 830 g / 1.
- Example 1 was repeated.
- the residence time in the first mixer was 4 minutes while simultaneously reducing the Sokalan ( R ) CP 5 solution to 6% by weight. After drying and sieving 23% by weight of coarse particles above 1.6 mm, a bulk density of 930 g / l was obtained.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4216774 | 1992-05-21 | ||
DE4216774A DE4216774A1 (de) | 1992-05-21 | 1992-05-21 | Verfahren zur kontinuierlichen Herstellung eines granularen Wasch und/oder Reinigungsmittels |
PCT/EP1993/001191 WO1993023523A1 (de) | 1992-05-21 | 1993-05-13 | Verfahren zur kontinuierlichen herstellung eines granularen wasch- und/oder reinigungsmittels |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0642576A1 true EP0642576A1 (de) | 1995-03-15 |
EP0642576B1 EP0642576B1 (de) | 1996-07-10 |
Family
ID=6459386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93909975A Expired - Lifetime EP0642576B1 (de) | 1992-05-21 | 1993-05-13 | Verfahren zur kontinuierlichen herstellung eines granularen wasch- und/oder reinigungsmittels |
Country Status (7)
Country | Link |
---|---|
US (1) | US5616550A (de) |
EP (1) | EP0642576B1 (de) |
JP (1) | JP3488235B2 (de) |
AT (1) | ATE140264T1 (de) |
DE (2) | DE4216774A1 (de) |
ES (1) | ES2089820T3 (de) |
WO (1) | WO1993023523A1 (de) |
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US6417152B1 (en) | 1997-07-30 | 2002-07-09 | Henkel Kommanditgesellshaft Auf Aktien | Detergent containing glucanase |
US6468957B1 (en) | 1998-09-29 | 2002-10-22 | Henkel Kommanditgesellschaft Auf Aktien | Granulation method |
US6541233B1 (en) | 1997-07-30 | 2003-04-01 | Henkel Kommanditgesellschaft Auf Aktien | β-glucanase from a bacillus |
US6649085B2 (en) | 2000-11-25 | 2003-11-18 | Clariant Gmbh | Cyclic sugar ketones as catalysts for peroxygen compounds |
US6683042B1 (en) | 1998-09-29 | 2004-01-27 | Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa) | Granulation method |
US6703357B1 (en) | 1997-07-30 | 2004-03-09 | Henkel Kommanditgesellschaft Auf Aktien | Cleaning agent for hard surfaces, containing glucanase |
US6746996B2 (en) | 2001-01-19 | 2004-06-08 | Clariant Gmbh | Use of transition metal complexes having oxime ligands as bleach catalysts |
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JP2007172716A (ja) * | 2005-12-20 | 2007-07-05 | Sony Corp | 再生装置、再生方法および再生プログラム、記録媒体およびデータ構造、ならびに、オーサリング装置、オーサリング方法およびオーサリングプログラム |
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BR112012000460A2 (pt) * | 2009-07-09 | 2016-02-16 | Procter & Gamble | processo contínuo para produção de uma composição detergente para lavagem de roupas |
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- 1992-05-21 DE DE4216774A patent/DE4216774A1/de not_active Withdrawn
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1993
- 1993-05-13 EP EP93909975A patent/EP0642576B1/de not_active Expired - Lifetime
- 1993-05-13 ES ES93909975T patent/ES2089820T3/es not_active Expired - Lifetime
- 1993-05-13 WO PCT/EP1993/001191 patent/WO1993023523A1/de active IP Right Grant
- 1993-05-13 AT AT93909975T patent/ATE140264T1/de not_active IP Right Cessation
- 1993-05-13 US US08/335,810 patent/US5616550A/en not_active Expired - Lifetime
- 1993-05-13 JP JP51988593A patent/JP3488235B2/ja not_active Expired - Fee Related
- 1993-05-13 DE DE59303203T patent/DE59303203D1/de not_active Expired - Lifetime
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Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
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US6417151B1 (en) | 1997-04-04 | 2002-07-09 | Henkel Kommanditgesellschaft Auf Aktien | Activators for peroxide compounds in detergents and cleaning agents |
US6417152B1 (en) | 1997-07-30 | 2002-07-09 | Henkel Kommanditgesellshaft Auf Aktien | Detergent containing glucanase |
US6541233B1 (en) | 1997-07-30 | 2003-04-01 | Henkel Kommanditgesellschaft Auf Aktien | β-glucanase from a bacillus |
US6703357B1 (en) | 1997-07-30 | 2004-03-09 | Henkel Kommanditgesellschaft Auf Aktien | Cleaning agent for hard surfaces, containing glucanase |
US6380147B1 (en) | 1998-06-03 | 2002-04-30 | Henkel Kommanditgesellschaft Auf Aktien | Detergents containing amylase and protease |
US6468957B1 (en) | 1998-09-29 | 2002-10-22 | Henkel Kommanditgesellschaft Auf Aktien | Granulation method |
US6683042B1 (en) | 1998-09-29 | 2004-01-27 | Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa) | Granulation method |
US6649085B2 (en) | 2000-11-25 | 2003-11-18 | Clariant Gmbh | Cyclic sugar ketones as catalysts for peroxygen compounds |
US6746996B2 (en) | 2001-01-19 | 2004-06-08 | Clariant Gmbh | Use of transition metal complexes having oxime ligands as bleach catalysts |
US6875734B2 (en) | 2003-02-03 | 2005-04-05 | Clariant Gmbh | Use of transition metal complexes as bleach catalysts |
US8080401B2 (en) | 2004-10-01 | 2011-12-20 | Henkel Ag & Co. Kgaa | Alpha-amylase variants having an elevated solvent stability, method for the production thereof and detergents and cleansers containing these alpha-amylase variants |
US8785365B2 (en) | 2004-10-01 | 2014-07-22 | Basf Se | Alpha-amylase variants stabilized against dimerization and/or multimerization, method for the production thereof, and detergents and cleansers containing these alpha-amylase variants |
US9353361B2 (en) | 2004-10-01 | 2016-05-31 | Basf Se | Alpha-amylase variants stabilized against dimerization and/or multimerization, method for the production thereof, and detergents and cleansers containing these alpha-amylase variants |
WO2007054203A2 (de) | 2005-11-08 | 2007-05-18 | Henkel Ag & Co. Kgaa | Enzym / subtstrat sytem zur generierung von wasserstoffperoxid enthaltend sorbitol oxidase aus streptomyces c0elic0l0r und sorbitol |
DE102007016391A1 (de) | 2007-04-03 | 2008-10-09 | Henkel Ag & Co. Kgaa | Farbschützendes Wasch- oder Reinigungsmittel |
DE102007028310A1 (de) | 2007-06-20 | 2008-12-24 | Clariant International Ltd. | Tensidmischungen mit synergistischen Eigenschaften |
DE102008013606A1 (de) | 2008-03-11 | 2009-09-17 | Clariant International Ltd. | Verfahren zur Herstellung fester Erdalkalimetallsalze sekundärer Paraffinsulfonsäuren |
US8426635B2 (en) | 2008-03-11 | 2013-04-23 | Clariant Finance (Bvi) Limited | Process for preparing solid alkaline earth metal salts of secondary paraffinsulphonic acids |
DE102008024084A1 (de) | 2008-05-17 | 2009-11-19 | Clariant International Ltd. | Wasch- und Reinigungsmittel |
DE102011010818A1 (de) | 2011-02-10 | 2012-08-16 | Clariant International Ltd. | Verwendung von Übergangsmetallkomplexen als Bleichkatalysatoren in Wasch- und Reinigungsmitteln |
WO2012107187A1 (de) | 2011-02-10 | 2012-08-16 | Clariant International Ltd | Verwendung von übergangsmetallkomplexen als bleichkatalysatoren in wasch- und reinigungsmitteln |
DE102014009836A1 (de) | 2014-07-03 | 2016-01-07 | Weylchem Wiesbaden Gmbh | Natriumsalze sekundärer Alkansulfonate enthaltende Compounds, ihre Herstellung und Verwendung sowie Wasch-, Desinfektion- und Reinigungsmittel enthaltend diese |
Also Published As
Publication number | Publication date |
---|---|
WO1993023523A1 (de) | 1993-11-25 |
DE4216774A1 (de) | 1993-11-25 |
JP3488235B2 (ja) | 2004-01-19 |
US5616550A (en) | 1997-04-01 |
JPH07506611A (ja) | 1995-07-20 |
DE59303203D1 (de) | 1996-08-14 |
EP0642576B1 (de) | 1996-07-10 |
ATE140264T1 (de) | 1996-07-15 |
ES2089820T3 (es) | 1996-10-01 |
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