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WO2009060405A1 - Compositions de ciment - Google Patents

Compositions de ciment Download PDF

Info

Publication number
WO2009060405A1
WO2009060405A1 PCT/IB2008/054641 IB2008054641W WO2009060405A1 WO 2009060405 A1 WO2009060405 A1 WO 2009060405A1 IB 2008054641 W IB2008054641 W IB 2008054641W WO 2009060405 A1 WO2009060405 A1 WO 2009060405A1
Authority
WO
WIPO (PCT)
Prior art keywords
additive composition
dispersant
weight
amine hydrohalide
lignosulphonate
Prior art date
Application number
PCT/IB2008/054641
Other languages
English (en)
Inventor
Thomas Douglas Brindle
Original Assignee
Umkomaas Lignin (Proprietary) Limited T/A Lignotech Sa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Umkomaas Lignin (Proprietary) Limited T/A Lignotech Sa filed Critical Umkomaas Lignin (Proprietary) Limited T/A Lignotech Sa
Publication of WO2009060405A1 publication Critical patent/WO2009060405A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
    • C04B24/121—Amines, polyamines
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
    • C04B24/122—Hydroxy amines
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/10—Accelerators; Activators
    • C04B2103/14—Hardening accelerators

Definitions

  • the manufacture of clinker entails the sintering of a mixture of calcium carbonate (limestone) aluminium silicate (clay or shale) silicon dioxide (sand) and miscellaneous iron oxides.
  • This sintering process relies on the use of coal, oil, gas or other fuels to provide sufficient heat to fuse the components into hardened nodules referred to as clinker.
  • fillers and or clinker substitutes reduces the carbon emissions by a reduction in the total clinker production for a given off-take of hydraulic cement.
  • the clinker production can be extended by the use of fillers and clinker substitutes to produce additional hydraulic cement for a given production rate of clinker.
  • the principal phases which constitute more than 90% of Portland cement are tricalcium silicate - (3CaO.SiO 2 ), C 3 S, dicalcium silicate - (2CaO.SiO 2 ), C 2 S, tricalcium aluminate - (3CaO. AI 2 O 3) and tetracalcium aluminoferrite - (4CaCAI 2 O 3 -Fe 2 O 3 ) or C 4 AF. Variations in the proportions of these phases produce different types of cement. In addition to these major phases, several other compounds contribute to the hydration process, of which gypsum (CaSO 4 .2H 2 O in the pure natural form) is important.
  • gypsum CaSO 4 .2H 2 O in the pure natural form
  • Portland cement clinker is prepared by igniting a mixture of raw materials composed mainly of calcium carbonate and suitable aluminium silicates known as calcareous and argillaceous materials (or other equivalent mixtures) respectively.
  • the preferred method of burning the homogenous mixture of the constituents is referred to as the dry process whereby the raw mix is milled in the dry state and added to the kiln where the mixture is fired at 1250-1500 0 C. This is then cooled at a rate sufficient to preserve the chemical compounds or phases in a state of frozen equilibrium as partly glassy and partly crystalline material, referred to as clinker.
  • the actual burning technology is not within the scope of this discussion but affects the chemistry of the clinker dramatically.
  • the chemistry of the ciinker for the same cement type can differ from plant to plant dependent on the available raw materials and burning conditions.
  • the C 3 S attains the greater part of its strength in 7 days with rapidly reducing strength gain thereafter.
  • C 2 S contributes little strength development up to 28 days but continues to steadily gain strength over long periods.
  • the C 3 A might produce some strength at 1 day but is also known to decrease the later strengths.
  • This calcium silicate hydrate occurs in at least 4 forms, as fibres, a reticular network, small equant grains and tobermorite gel.
  • the two calcium silicates react to produce calcium hydroxide and silicate hydrate called tobermorite gel (3CaO.2SiO 2 .3H 2 O. or C-S-H.)
  • Tricalcium aluminate or C 3 A has the fastest rate of reaction with water. It has a large influence on the rate of heat release and hardening rate, and is largely responsible for "flash” or “quick set” in the cement water phase. It consumes large amounts of water upon hydration and therefore impacts on workability and slump retention.
  • the C 4 AF is generally the least reactive of the major components but can inhibit the development of strength, particularly at later ages. As clinker particles fracture during milling of cement, particles or grains of the silicate phases are partially or fully coated by the C 4 AF, which, as part of the interstitial phase in cement is not as hard as the silicate phase and fractures more readily.
  • a first aspect of the invention relates to an additive composition for use in preparing a hydraulic cement composition, the additive composition comprising amine hydrohalide/s.
  • the amine hydrohalide/s and dispersant may be present at a ratio (by weight) of 1 :66 to 1 :5, preferably 1 :32 to 1 :7, most preferably 1 :32 to 1 :16 amine hydrohalide to dispersant.
  • the amine hydrohalide may be hydrobromide or hydrochloride, preferably hydrochloride.
  • the additive may be a liquid composition or a solid composition.
  • a liquid additive composition typically contains 30-60%, preferably 40-50%, most preferably 43-48% by weight dispersant solids.
  • a solid additive composition typically contains 98.5-82%, preferably 97-88% by weight, most preferably 97-94% by weight dispersant solids.
  • the amine hydrochloride may be a triethanolamine, a monoethanolamine, a diethanolamine or mixtures of mono-di-triethanolamine hydrochloride.
  • the amine hydrochloride is preferably a Triethanolamine hydrochloride (also known as 2,2', 2" - Nitrilotriethanol hydrochloride) or Tris (2-hydroxyethyl) amine hydrochloride.
  • the lignosulphonate/s is/are typically from metallic salts such as calcium, sodium, magnesium and the like.
  • the lignosulphonate may be in a solution produced from hardwood, softwood and straw.
  • the lignosulphonate solution preferably has a low sugar content, typically 0.5-2%, preferably 0.5-1% m/m sugar.
  • a second aspect of the invention relates to a method of producing an additive composition described above, the method including the steps of: preparing a 25-45%, preferably 30%, active ingredient m/m amine hydrohalide solution by reaction of amine with hydrohalous acid which reaction causes an exotherm; and adding the amine hydrohalide solution to a lignosulphonate solution (typically having a lignosulphonate solids content of 30-60% by weight) immediately after the exotherm.
  • a third aspect of the invention relates to a method of preparing a hydraulic cement composition comprising a mixture of Portland cement, wherein amine hydrohalide/s is/are added during the method of preparing the hydraulic cement composition.
  • the amine hydrohalide is added with a dispersant such as naphthalene sulphonate formaldehyde, melamine sulphonate formaldehyde, carboxylic acid/s, polycarboxylic phosphonates, polycarboxylic ethoxylates or lignosulphonate/s, most preferably a calcium, sodium and/or magnesium lignosulphonate/s.
  • a dispersant such as naphthalene sulphonate formaldehyde, melamine sulphonate formaldehyde, carboxylic acid/s, polycarboxylic phosphonates, polycarboxylic ethoxylates or lignosulphonate/s, most preferably a calcium, sodium and/or magnesium lignosulphonate/s.
  • the dispersant and amine hydrohalide/s may be added prior to or in conjunction with the addition of water during the method of preparing the hydraulic cement composition.
  • the dispersant and amine hydrohalide is preferably added during grinding of the cement in which case the dispersant an amine hydrohalide further acts to reduce the water requirement for a given flow ability, as well as acting as a milling aid.
  • the cement composition may be prepared from a clinker additionally containing a clinker substitute with or without additional limestone filler.
  • a fourth aspect of the invention relates to a hydraulic cement composition
  • a hydraulic cement composition comprising a mixture of Portland cement containing an amine hydrohalide as described above and preferably a dispersant as described above, in the amounts described above.
  • Figure 1 is a graph showing adiabatic calorimetry for the cement hydration processes of a control and commercial cement compositions in comparison with cement compositions containing an additive composition according to the present invention.
  • Figure 2 is a graph showing hydration adiabatic calorimetry for the cement hydration processes of a control and cement compositions containing different amounts of additive composition according to the present invention.
  • the present invention is directed to a hydraulic cement composition exhibiting enhanced early (i.e. 1 , 3, 7 days) and later 28 day and 56 day compressive strength properties after mixing and allowing the cement composition to set.
  • the water requirement of the hydraulic cement composition should be equal to or improved over the equivalent mass of conventional Portland cement used for comparative studies. These attributes are imparted by incorporating a water reducing, strength-enhancing additive into a suitable hydraulic Portland cement or cement composition. Furthermore setting times are not extended and may be reduced, dependent on application rate of the additive.
  • the combination extends to include all ultra filtrated and vanillin based products extracted from both hard and soft woods.
  • E - Cement composition containing: prior art additive comprising Triethanolamine
  • the Triethanolamine Hydrochloride (A) displays a unique heat release signature when added to the hydraulic cement as a stand-alone product and is easily identifiable by the secondary peak, which occurs after 2-4 days.
  • the inclusion of the Triethanolamine Hydrochloride in a lignosulphonate base depicts essentially the same heat release signature albeit on a different time scale (B).
  • the secondary peak is not present in the cement control composition (D), nor the cement compositions containing prior art Chloride additives (C and E).
  • the amine hydrochloride is produced in situ by reaction of amine with hydrochloric acid as a 25-45% active ingredient composition.
  • the amine is massed into a vessel with a mechanical agitator. Water equal to the mass of the amine is added and thoroughly stirred or agitated. An exotherm, or heat release is generated by the reaction between the amine and hydrochloric acid and continues until the resultant mixture achieves a neutral state of 6.5-7.5, at which point, the amine halide has been formed.
  • the amine hydrochloride is added to a lignosulphonate or other dispersant solution (30-50% by weight solids content) in an amount of 5-60% m/m solution immediately after the exotherm.
  • the resultant composition can be further reacted at high temperature, cooled and packaged as a ready-to-use liquid or spray dried product.
  • the resultant product is typically added to the hydraulic cement as a liquid during the inter-grinding or milling process.
  • a - Cement composition containing liquid additive composition of the invention 20%
  • Triethanolamine Hydrochloride solution (30% active) plus 80% Calcium lignosulphonate (50% by weight lignosulphonate solids) at 0.1% Is/m
  • the dispersant or water reducer may be added to either blended or interground hydraulic cements to improve the flow of the mortar or concrete when water is added.
  • additions of filler or clinker substitutes such as granulated blast furnace slag or pulverised fly ash or combinations thereof increases the water requirement of the hydraulic cement for a given water cement ratio.
  • Use of lignosulphonates during inter-grinding or intermixing of cementitious materials would allow for the inclusion of increased proportions of clinker substitutes without raising the water requirement.
  • accelerators such as calcium and sodium chlorides, nitrates, nitrites, thiocyanates and the like known to the art are generally ineffective at low addition rates and in many cases are limited to specific concentrations. Many such accelerators are incompatible with lignosulphonates in solution.
  • the invention addresses this objective without sacrificing early strength development and extending setting times by using a combination of lignosuiphonate, typically calcium, sodium and/or magnesium lignosuiphonate and an amine hydrochloride.
  • lignosuiphonate typically calcium, sodium and/or magnesium lignosuiphonate
  • an amine hydrochloride is non-corrosive.
  • additive liquid m/m of Portland cement results in a reduction of the standard consistency or water reduction of the interground hydraulic cement.
  • the liquid additive is a blend of a 40% (by weight) solids solution of a hardwood low sugar content calcium/sodium lignosuiphonate mixture with an 8% m/m solution of triethanolamine hydrochloride (30% active ingredient). See Table 1 below for comparative mortar tests where the liquid additive described above is referred to as DP234A.
  • the addition of the liquid additive was based on the total cementitious cement content and in effect, was doubled dosed, as the milled slag is basically inert at early ages. This is clearly indicated by the reduction in 1-day compressive strengths. Logically, setting times were extended. Percentage standard consistency reduced in line with the OPC as per Table 1. Once again the 7-day compressive strengths improved with substantial gains at 28 days.
  • Standard consistency reduction is typically lower than other cement blends, due to the particle distribution of the milled slag and cement clinker.
  • the 1-day compressive strengths are basically equal to the control sample although initial and final setting times are slightly extended.
  • the 0.1% m/m addition of the liquid additive achieved a moderate increase of 10% at 7 days with a 15% increase at 28 days over the control sample.
  • the addition of 0.15% m/m did not improve performance but rather reduced the effect of the liquid additive.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

La présente invention concerne une composition de ciment hydraulique présentant des propriétés de résistance à la compression améliorées précoces (c'est à dire de 1, 3, 7 jours) et tardives de 28 jours et de 56 jours après le mélange et la prise de la composition de ciment. L'amélioration est réalisée grâce à l'utilisation d'une composition d'additif comprenant une combinaison de chlorhydrate(s) d'amine et un dispersant, de préférence un/des lignosulfonates(s).
PCT/IB2008/054641 2007-11-06 2008-11-06 Compositions de ciment WO2009060405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2007/09559 2007-11-06
ZA200709559 2007-11-06

Publications (1)

Publication Number Publication Date
WO2009060405A1 true WO2009060405A1 (fr) 2009-05-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/054641 WO2009060405A1 (fr) 2007-11-06 2008-11-06 Compositions de ciment

Country Status (1)

Country Link
WO (1) WO2009060405A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2953511A1 (fr) * 2009-12-04 2011-06-10 Lafarge Sa Protection d'un dispersant pendant un broyage
WO2012155342A1 (fr) * 2011-05-17 2012-11-22 Construction Research & Technology Gmbh Procédé pour la préparation d'additifs pour des matériaux à base de ciment, additif et mélange comprenant l'additif
FR2986524A1 (fr) * 2012-02-06 2013-08-09 Chryso Adjuvant accelerateur de prise a stabilite amelioree
US10266745B2 (en) 2017-02-03 2019-04-23 Saudi Arabian Oil Company Anti-bit balling drilling fluids, and methods of making and use thereof
WO2020074633A1 (fr) * 2018-10-10 2020-04-16 Chryso Procédé d'utilisation d'alcanolamine dans un broyeur
WO2021204942A1 (fr) * 2020-04-09 2021-10-14 Chryso Composition d'alcanolamines partiellement protonées et utilisation dans un broyeur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405372A (en) * 1982-03-08 1983-09-20 W. R. Grace & Co. Gypsum-free cement compositions
EP0137582A1 (fr) * 1983-06-21 1985-04-17 Unilever Plc Compositions de ciment
EP0519747A2 (fr) * 1991-06-20 1992-12-23 W.R. Grace & Co.-Conn. Additif pour ciment et agent anti-mousse
WO2004076382A1 (fr) * 2003-02-25 2004-09-10 Construction Research & Technology Gmbh Accelerateur de prise
WO2005037728A1 (fr) * 2003-10-07 2005-04-28 W. R. Grace & Co.-Conn Agents reducteurs de chrome hexavalent a base d'amine destines au ciment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405372A (en) * 1982-03-08 1983-09-20 W. R. Grace & Co. Gypsum-free cement compositions
EP0137582A1 (fr) * 1983-06-21 1985-04-17 Unilever Plc Compositions de ciment
EP0519747A2 (fr) * 1991-06-20 1992-12-23 W.R. Grace & Co.-Conn. Additif pour ciment et agent anti-mousse
WO2004076382A1 (fr) * 2003-02-25 2004-09-10 Construction Research & Technology Gmbh Accelerateur de prise
WO2005037728A1 (fr) * 2003-10-07 2005-04-28 W. R. Grace & Co.-Conn Agents reducteurs de chrome hexavalent a base d'amine destines au ciment

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2953511A1 (fr) * 2009-12-04 2011-06-10 Lafarge Sa Protection d'un dispersant pendant un broyage
WO2012155342A1 (fr) * 2011-05-17 2012-11-22 Construction Research & Technology Gmbh Procédé pour la préparation d'additifs pour des matériaux à base de ciment, additif et mélange comprenant l'additif
FR2986524A1 (fr) * 2012-02-06 2013-08-09 Chryso Adjuvant accelerateur de prise a stabilite amelioree
WO2013117586A1 (fr) * 2012-02-06 2013-08-15 Chryso Adjuvant accélérateur de prise à stabilité améliorée
US9023151B2 (en) 2012-02-06 2015-05-05 Chryso Set-accelerating admixture having improved stability
US10683447B2 (en) 2017-02-03 2020-06-16 Saudi Arabian Oil Company Invert emulsion based drilling fluid and methods of using same
US10851281B2 (en) 2017-02-03 2020-12-01 Saudi Arabian Oil Company Development of anti-bit balling fluids
US10287476B2 (en) 2017-02-03 2019-05-14 Saudi Arabian Oil Company Cement slurries, cured cements and methods of making and use thereof
US10351750B2 (en) 2017-02-03 2019-07-16 Saudi Arabian Oil Company Drilling fluid compositions with enhanced rheology and methods of using same
US10377939B2 (en) 2017-02-03 2019-08-13 Saudi Arabian Oil Company Development of anti-bit balling fluids
US10392550B2 (en) 2017-02-03 2019-08-27 Saudi Arabian Oil Company Spacer fluid compositions, methods, and systems for aqueous based drilling mud removal
US10487254B2 (en) 2017-02-03 2019-11-26 Saudi Arabian Oil Company Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore
US10494560B2 (en) 2017-02-03 2019-12-03 Saudi Arabian Oil Company Development of anti-bit balling fluids
US10494559B2 (en) 2017-02-03 2019-12-03 Saudi Arabian Oil Company Cement slurries, cured cement and methods of making and use thereof
US10526520B2 (en) 2017-02-03 2020-01-07 Saudi Arabian Oil Company Anti-bit balling drilling fluids, and methods of making and use thereof
US10538692B2 (en) 2017-02-03 2020-01-21 Saudi Arabian Oil Company Development of anti-bit balling fluids
US10563110B2 (en) 2017-02-03 2020-02-18 Saudi Arabian Oil Company Methods of using drilling fluid compositions with enhanced rheology
US10570324B2 (en) 2017-02-03 2020-02-25 Saudi Arabian Oil Company Emulsifier compositions for invert emulsion fluids and methods of using the same
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US11365339B2 (en) 2017-02-03 2022-06-21 Saudi Arabian Oil Company Development of retarded acid system
US10640695B2 (en) 2017-02-03 2020-05-05 Saudi Arabian Oil Company Dispersant in cement formulations for oil and gas wells
US10662363B2 (en) 2017-02-03 2020-05-26 Saudi Arabian Oil Company Lubricants for water-based drilling fluids
US10266745B2 (en) 2017-02-03 2019-04-23 Saudi Arabian Oil Company Anti-bit balling drilling fluids, and methods of making and use thereof
US10703957B2 (en) 2017-02-03 2020-07-07 Saudi Arabian Oil Company Development of retarded acid system
US10822534B2 (en) 2017-02-03 2020-11-03 Saudi Arabian Oil Company Retarded acid systems, emulsions, and methods for using in acidizing carbonate formations
US10844266B2 (en) 2017-02-03 2020-11-24 Saudi Arabian Oil Company Spacer fluids and cement slurries that include surfactants
US10287477B2 (en) 2017-02-03 2019-05-14 Saudi Arabian Oil Company Dispersant in cement formulations for oil and gas wells
US10876028B2 (en) 2017-02-03 2020-12-29 Saudi Arabian Oil Company Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore
US10961426B2 (en) 2017-02-03 2021-03-30 Saudi Arabian Oil Company Development of anti-bit balling fluids
US11248157B2 (en) 2017-02-03 2022-02-15 Saudi Arabian Oil Company Emulsifier compositions for invert emulsion fluids and methods of using the same
US11015105B2 (en) 2017-02-03 2021-05-25 Saudi Arabian Oil Company Cement slurries, cured cements and methods of making and use thereof
US11015104B2 (en) 2017-02-03 2021-05-25 Saudi Arabian Oil Company Cement slurries, cured cements and methods of making and use thereof
US11034875B2 (en) 2017-02-03 2021-06-15 Saudi Arabian Oil Company Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore
US11098232B2 (en) 2017-02-03 2021-08-24 Saudi Arabian Oil Company Lubricants for water-based drilling fluids
US11078397B2 (en) 2017-02-03 2021-08-03 Saudi Arabian Oil Company Spacer fluid compositions, methods, and systems for aqueous based drilling mud removal
US11078396B2 (en) 2017-02-03 2021-08-03 Saudi Arabian Oil Company Spacer fluid compositions, methods, and systems for aqueous based drilling mud removal
US11098231B2 (en) 2017-02-03 2021-08-24 Saudi Arabian Oil Company Spacer fluid compositions that include surfactants
KR20210070998A (ko) * 2018-10-10 2021-06-15 크리소 그라인더에서 알칸올아민을 사용하는 방법
JP2022512677A (ja) * 2018-10-10 2022-02-07 クリソ 粉砕機においてアルカノールアミンを使用する方法
CN112823146A (zh) * 2018-10-10 2021-05-18 Chryso公司 将链烷醇胺用于研磨机的方法
WO2020074633A1 (fr) * 2018-10-10 2020-04-16 Chryso Procédé d'utilisation d'alcanolamine dans un broyeur
JP7353362B2 (ja) 2018-10-10 2023-09-29 クリソ 粉砕機においてアルカノールアミンを使用する方法
KR102604067B1 (ko) * 2018-10-10 2023-11-20 크리소 그라인더에서 알칸올아민을 사용하는 방법
WO2021204942A1 (fr) * 2020-04-09 2021-10-14 Chryso Composition d'alcanolamines partiellement protonées et utilisation dans un broyeur
FR3109149A1 (fr) * 2020-04-09 2021-10-15 Chryso Composition d’alcanolamines partiellement protonées et utilisation dans un broyeur
CN115443257A (zh) * 2020-04-09 2022-12-06 Chryso公司 部分质子化的烷醇胺组合物及其在研磨机中的用途

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