CN107082844B - For ore dressing and the amphoteric polyacrylamide flocculating agent and preparation method of tailings glass - Google Patents
For ore dressing and the amphoteric polyacrylamide flocculating agent and preparation method of tailings glass Download PDFInfo
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- CN107082844B CN107082844B CN201710403319.2A CN201710403319A CN107082844B CN 107082844 B CN107082844 B CN 107082844B CN 201710403319 A CN201710403319 A CN 201710403319A CN 107082844 B CN107082844 B CN 107082844B
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- flocculating agent
- amphoteric polyacrylamide
- solution
- monomer
- polyacrylamide flocculating
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- 229920002401 polyacrylamide Polymers 0.000 title claims abstract description 62
- 239000008394 flocculating agent Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000011521 glass Substances 0.000 title claims abstract description 16
- 239000000178 monomer Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 17
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- YXYZMHGSOKYZAF-UHFFFAOYSA-M [Cl-].C(C(=C)C)(=O)OCC[N+](C(C)(C)C)(C)C Chemical compound [Cl-].C(C(=C)C)(=O)OCC[N+](C(C)(C)C)(C)C YXYZMHGSOKYZAF-UHFFFAOYSA-M 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 43
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000003054 catalyst Substances 0.000 claims description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims description 21
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000007664 blowing Methods 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- 230000001939 inductive effect Effects 0.000 claims description 8
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 7
- 239000000084 colloidal system Substances 0.000 claims description 7
- 230000008719 thickening Effects 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 239000003002 pH adjusting agent Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 238000005660 chlorination reaction Methods 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 150000002978 peroxides Chemical class 0.000 claims description 3
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 2
- 150000001409 amidines Chemical class 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical group [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 2
- UWNADWZGEHDQAB-UHFFFAOYSA-N 2,5-dimethylhexane Chemical group CC(C)CCC(C)C UWNADWZGEHDQAB-UHFFFAOYSA-N 0.000 claims 2
- 230000003647 oxidation Effects 0.000 claims 2
- 238000007254 oxidation reaction Methods 0.000 claims 2
- 239000003513 alkali Substances 0.000 claims 1
- 239000002585 base Substances 0.000 claims 1
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 claims 1
- 238000005189 flocculation Methods 0.000 abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 8
- 230000016615 flocculation Effects 0.000 abstract description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 6
- 239000011707 mineral Substances 0.000 abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004411 aluminium Substances 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052737 gold Inorganic materials 0.000 abstract description 4
- 239000010931 gold Substances 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract description 4
- 229910052759 nickel Inorganic materials 0.000 abstract description 4
- 239000004332 silver Substances 0.000 abstract description 4
- 229910052709 silver Inorganic materials 0.000 abstract description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 5
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical group [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 5
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 5
- DZSVIVLGBJKQAP-UHFFFAOYSA-N 1-(2-methyl-5-propan-2-ylcyclohex-2-en-1-yl)propan-1-one Chemical compound CCC(=O)C1CC(C(C)C)CC=C1C DZSVIVLGBJKQAP-UHFFFAOYSA-N 0.000 description 4
- MPNXSZJPSVBLHP-UHFFFAOYSA-N 2-chloro-n-phenylpyridine-3-carboxamide Chemical compound ClC1=NC=CC=C1C(=O)NC1=CC=CC=C1 MPNXSZJPSVBLHP-UHFFFAOYSA-N 0.000 description 4
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 4
- 238000013019 agitation Methods 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- 238000006392 deoxygenation reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 4
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FKOZPUORKCHONH-UHFFFAOYSA-N 2-methylpropane-1-sulfonic acid Chemical compound CC(C)CS(O)(=O)=O FKOZPUORKCHONH-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- VYGBQXDNOUHIBZ-UHFFFAOYSA-L sodium formaldehyde sulphoxylate Chemical group [Na+].[Na+].O=C.[O-]S[O-] VYGBQXDNOUHIBZ-UHFFFAOYSA-L 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
- C08F220/585—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to ore dressing and tailings glass technical fields, and in particular to a kind of for ore dressing and the amphoteric polyacrylamide flocculating agent of tailings glass, the amphoteric polyacrylamide flocculating agent raw material includes monomer and water；The wherein mass fraction composition of monomer are as follows: 20~30 parts of acrylamide monomer, 5~8 parts of MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride monomer, 10~20 parts of 2- acrylamide-2-methyl propane sulfonic monomer, 5~10 parts of acrylic monomers.Meanwhile the present invention also provides a kind of for ore dressing and the preparation method of the amphoteric polyacrylamide flocculating agent of tailings glass.The invention has the benefit that prepared amphoteric polyacrylamide flocculating agent is suitable in gold, silver, copper, iron, manganese, aluminium, nickel minerals and their tailings glass, it is the amphiprotic polyacrylamide copolymer that a kind of solution rate is fast, dosage is small, selective flocculation ability is strong, amphoteric polyacrylamide flocculating agent of the present invention can be applied to the ore pulp of different cultivars and the ore pulp of variable grain fineness.
Description
Technical field
The present invention relates to ore dressing and tailings glass technical fields, and in particular to a kind of for ore dressing and the both sexes of tailings glass
Polyacrylamide flocculant and preparation method.
Background technique
In the ore dressing operation, flocculation process is chiefly used in being separated by solid-liquid separation, if settling efficiency is very low without flocculation treatment, and
Using flocculation concentration, then settling efficiency can be greatly improved, and effectively removed supernatant suspended solid, efficiently accelerated particle heavy
The advantages that reduction of speed is spent, thus be widely used in ore-dressing practice, operating efficiency be related to entire separation of solid and liquid process cost,
The valuable mineral rate of recovery, recycling water utilization, in green emissions etc..In order to strengthen the concentration of dressing plant's ore pulp and the clarification of water, mention
The Hydraulic transportation concentration and recycling water utilization rate of high tailing, lot of domestic and international dressing plant strengthened using flocculant the sedimentation of tailing with
Concentration.
Another application of flocculant in the ore dressing operation is the technique in the selective flocculation technique of subparticle ore
It is to make the suspension of approximate colloid fully dispersed first with dispersing agent, then dispersed with flocculant flocculation target mineral particle with other
Phase gangue and sedimentation separation.
In the prior art, the preparation method of amphoteric polyacrylamide flocculating agent is very complicated, simultaneously as prepared two
The viscosity of property polyacrylamide colloid is big, resilience is poor, it is difficult to granulating and forming, thus it is unsuitable for the preparation of product, therefore, so that
Amphoteric polyacrylamide flocculating agent cannot be used widely.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of flocculate for ore dressing and tailings glass amphiprotic polyacrylamide
Agent and preparation method, to solve the problems, such as that flocculant cannot be generally applicable in the prior art.
The purpose of the present invention is mainly achieved through the following technical solutions:
It is a kind of for ore dressing and the amphoteric polyacrylamide flocculating agent of tailings glass, the amphoteric polyacrylamide flocculating agent
Raw material includes monomer and water；The wherein mass fraction composition of monomer are as follows:
The present invention is for the first time by above-mentioned four kinds of monomer copolymerizables at water-soluble polymer, that is, amphoteric polyacrylamide flocculating agent, institute
The amphoteric polyacrylamide flocculating agent prepared have wide applicability, can be used for gold, silver, copper, iron, manganese, aluminium, nickel minerals with
And in their tailings glass, meanwhile, amphoteric polyacrylamide flocculating agent of the present invention is with solution rate is fast, dosage is small, choosing
The strong distinguishing feature of selecting property flocculation ability.
Preferably, in the amphoteric polyacrylamide flocculating agent monomer and water mass fraction are as follows:
Further, the molecular weight of the amphoteric polyacrylamide flocculating agent is 800~15,000,000.
A method of it being used to prepare amphoteric polyacrylamide flocculating agent, is generated by aqueous solution chlorination reducing catalyst method
The mode of free radical is copolymerized obtained, mainly comprises the steps that
Step 1, in mass ratio example weigh acrylamide, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, 2- acrylamide-
Four kinds of 2- methyl propane sulfonic acid, acrylic acid monomers；
The addition of above-mentioned four kinds of monomers is placed with stirring and dissolving formation solution in the beaker of distilled water by step 2, and stirred
The pH value that neutralizer adjustment solution is added in journey is 6.0~7.0, continues agitating solution and cures 25~40 minutes；
PH value and temperature that pH adjusting agent adjusts solution after curing are added into solution after curing for step 3；
Step 4 is blown into nitrogen into the solution after step 3 adjusting curing, is then added into the solution adjusted after curing
Redox (-)catalyst system induces monomer co-polymeric until stopping nitrogen blowing after solution thickening, when having at least 2 in inductive phase
DEG C temperature rise, then cause success；When less than 2 DEG C temperature rises in inductive phase, then induces not successfully, need to rejoin the oxygen of identical quantity
Change reducing catalyst system to cause again；After causing successfully, heat preservation；
Step 5, amphoteric polyacrylamide flocculating agent preparation are completed.
Aqueous solution chlorination reducing catalyst method of the present invention generates free radicals the conjunction referred in amphoteric polyacrylamide flocculating agent
At in the process, is protected to prepared monomer solution nitrogen blowing, redox (-)catalyst system is then added into solution
It generates free radicals, so that monomer be made to be copolymerized polymerization.
Further, in the step 2, the neutralizer is sodium hydroxide or sodium carbonate.
Preferably, the neutralizer is sodium hydroxide.
Further, in the step 3, the pH adjusting agent is pH alkaline conditioner and pH acid regulator.
Further, the pH alkaline conditioner is sodium hydroxide, potassium carbonate or ammonium hydroxide；The pH acid regulator is phosphorus
Acid, sulfuric acid, hydrochloric acid or acetic acid.
Further, in the step 3, to curing after the pH value that pH adjusting agent adjusts solution after curing is added in solution
It is 6.0~7.0, temperature is 15~20 DEG C.
PH value is adjusted to 6.0~7.0, it can be ensured that the initiation of monomer polymerize, when pH value is less than 6.0 or greater than 7.0
When, it so that monomer is caused polymerization；Temperature range is adjusted to 15~20 DEG C, it can be ensured that the molecular weight of flocculant, because
The size of polymer molecular weight and the initial temperature of initiation are related, and initial temperature is lower, and the molecular weight of polymer is bigger, still,
When initial temperature is too low, then causing can be extremely difficult.
Further, in the step 4, being blown into the time range of nitrogen into the solution adjusted after curing is 25~30 points
Clock.
The present invention is to guarantee that polymerization process exists to remove the dissolved oxygen in water to nitrogen blowing in the solution after adjusting curing
It is carried out under conditions of absolute anaerobic, while guaranteeing that polymerization process will not be by extraneous oxygen consumption.
Further, in the step 4, co-polymeric reaction is carried out in polymeric kettle, and temperature is contained in the polymeric kettle
Degree meter.
Further, in the step 4, Induction time range is 15~20 minutes.
Further, in the step 4, the redox (-)catalyst system is azo-compound, oxidant and reduction
Agent.
Further, in the step 4, the order of addition of the redox (-)catalyst system is azo-compound, oxygen
Agent and reducing agent.
Further, the azo-compound is azodiisobutyronitrile (AZDN), azobisisoheptonitrile (V65) or azo two
One or more of isobutyl amidine hydrochloride (V50)；
Further, the oxidant is persulfate, peroxide；The persulfate is ammonium persulfate, persulfuric acid
Potassium or sodium peroxydisulfate；The peroxide is hydrogen peroxide, benzoyl peroxide or tert-butyl peroxide.
Further, the reducing agent is sulphite or bisulfites.
Preferably, the reducing agent is sodium formaldehyde sulphoxylate or organic amine.
Further, in the step 4, after causing successfully, 85~95 DEG C are raised to temperature under confined conditions in heat preservation
Start heat preservation after the highest temperature 2~5 hours.
Further, the quality of the redox (-)catalyst system is the 0.001%~3% of four kinds of monomer masses.
It is a kind of for ore dressing and the application method of the amphoteric polyacrylamide flocculating agent of tailings glass, be configured to first
The amphoteric polyacrylamide flocculating agent aqueous solution of 0.1 ‰~0.5 ‰ concentration, combined process using single-point or multiple spot be added ore pulp or
In tailing water.
The present invention has the beneficial effect that:
(1) compared with prior art, the present invention prepared by amphoteric polyacrylamide flocculating agent be suitable for gold, silver, copper,
It is that a kind of solution rate is fast, dosage is small, selective flocculation ability is strong in iron, manganese, aluminium, nickel minerals and their tailings glass
Amphiprotic polyacrylamide copolymer, the molecular structure of amphoteric polyacrylamide flocculating agent determines coagulation, blended space
Capture the reticular structure of type be it is crucial, amphoteric polyacrylamide flocculating agent of the present invention can be applied to the ore pulp of different cultivars with
And the ore pulp of variable grain fineness；
(2) amphoteric polyacrylamide flocculating agent prepared by the present invention needs first to be configured to 0.1 ‰~0.5 ‰ when in use
The amphoteric polyacrylamide flocculating agent aqueous solution of concentration, combined process are added in ore pulp or tailing water using single-point or multiple spot, are reached
To the purpose being quickly separated by solid-liquid separation；
(3) the amphoteric polyacrylamide flocculating agent application stability and more general with ore pulp applicability prepared by the present invention
Common anion polymer is wide in range, when pulp density, ore kind, slurry fineness change in production, flocculant
Applicable effect becomes apparent.
Specific embodiment
Flocculant and its production process of the invention are explained in detail below according to specific embodiment, embodiment
Merely illustrative purpose, it is no intended to which any restriction is carried out to protection scope.
Embodiment 1
In the present embodiment, the mass fraction of monomer and water includes in amphoteric polyacrylamide flocculating agent:
Acrylamide: 20 weight %；
MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride: 5 weight %；
2- acrylamide-2-methyl propane sulfonic: 20 weight %；
Acrylic acid: 10 weight %；
Water: 45 weight %.
Amphoteric polyacrylamide flocculating agent the preparation method comprises the following steps:
Step 1 weighs acrylamide 200g, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 50g, 2- acrylamide -2-
Methyl propane sulfonic acid 200g, acrylic acid 100g；
Distilled water 450g is added in step 2 in 2000ml beaker, and acrylamide 200g, methylacryoyloxyethyl is added
2- acrylamide-2-methyl propane sulfonic 200g is added in trimethyl ammonium chloride 50g, and acrylic acid 100g is added, and stirring and dissolving 30 is divided
Clock is slowly added to neutralizer sodium hydroxide to pH6.5 ± 0.5 under agitation；Continue agitating solution to cure 30 minutes；
Step 3, cured according to solution after pH value range, utilize pH value alkaline conditioner sodium carbonate or pH value acidity to adjust
Agent phosphoric acid adjusts pH value to 6.5 ± 0.5 again, and adjusting temperature is 15 ± 1 DEG C；
Step 4, nitrogen blowing deoxygenation 25~30 minutes into solution sequentially add catalyst AZDN 1g/ under nitrogen protection
L, V50 0.1g/L, ammonium persulfate 0.2g/L, sodium hydrogensulfite 0.2g/L induce 15 until stopping nitrogen blowing after solution thickening
It~20 minutes, has seen whether temperature rise, when the temperature rise for having 2 DEG C in inductive phase, has been considered as and causes successfully, then in heat preservation confined condition
Under after temperature is raised to 85~95 DEG C of the highest temperature there is no start when the sign of heating heat preservation 3 hours；
Step 5, amphoteric polyacrylamide flocculating agent preparation are completed, and the colloid having polymerize is granulated, is dried, is crushed
At 20 mesh, number HT9022.
Embodiment 2
In the present embodiment, the mass fraction of monomer and water includes in amphoteric polyacrylamide flocculating agent:
Acrylamide: 30 weight %；
MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride: 8 weight %；
2- acrylamide-2-methyl propane sulfonic: 20 weight %
Acrylic acid: 10 weight %；
Water: 32 weight %.
Amphoteric polyacrylamide flocculating agent the preparation method comprises the following steps:
Step 1 weighs acrylamide 300g, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 80g, 2- acrylamide -2-
Methyl propane sulfonic acid 200g, acrylic acid 100g；
Distilled water 320g is added in step 2 in 2000ml beaker, and acrylamide 300g, methylacryoyloxyethyl is added
2- acrylamide-2-methyl propane sulfonic 200g is added in trimethyl ammonium chloride 80g, and acrylic acid 100g is added, and stirring and dissolving 30 is divided
Clock is slowly added to neutralizer sodium hydroxide to pH 6.5 ± 0.5 under agitation；Continue agitating solution to cure 30 minutes；
Step 3, cured according to solution after pH value range, utilize pH value alkaline conditioner sodium carbonate or pH value acidity to adjust
Agent phosphoric acid adjusts pH value to 6.5 ± 0.5 again, adjusts 15 ± 1 DEG C of temperature；
Step 4, nitrogen blowing deoxygenation 25~30 minutes into solution sequentially add catalyst AZDN 1g/ under nitrogen protection
L, V50 0.1g/L, ammonium persulfate 0.3g/L, sodium hydrogensulfite 0.3g/L induce 15 until stopping nitrogen blowing after solution thickening
It~20 minutes, has seen whether temperature rise, when the temperature rise for having 2 DEG C in inductive phase, has been considered as and causes successfully, then in heat preservation confined condition
Under after temperature is raised to 85-95 DEG C of the highest temperature there is no start when the sign of heating heat preservation 3 hours；
Step 5, amphoteric polyacrylamide flocculating agent preparation are completed, and the colloid having polymerize is granulated, is dried, is crushed
At 20 mesh, number HT9011.
Embodiment 3
In the present embodiment, the mass fraction of monomer and water includes in amphoteric polyacrylamide flocculating agent:
Acrylamide: 30 weight %；
MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride: 8 weight %；
2- acrylamide-2-methyl propane sulfonic: 10 weight %
Acrylic acid: 5 weight %；
Water: 47 weight %.
Amphoteric polyacrylamide flocculating agent the preparation method comprises the following steps:
Step 1 weighs acrylamide 300g, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 80g, 2- acrylamide -2-
Methyl propane sulfonic acid 200g, acrylic acid 100g；
Distilled water 470g is added in step 2 in 2000ml beaker, and acrylamide 300g, methylacryoyloxyethyl is added
Trimethyl ammonium chloride 80g, be added 2- acrylamide-2-methyl propane sulfonic 100g, be added acrylic acid 50g, stirring and dissolving 30 minutes,
It is slowly added to neutralizer sodium hydroxide under agitation to pH6.5 ± 0.5；Continue agitating solution to cure 30 minutes；
Step 3, cured according to solution after pH value range, utilize pH value alkaline conditioner sodium carbonate or pH value acidity to adjust
Agent phosphoric acid adjusts pH value to 6.5 ± 0.5 again, adjusts 15 ± 1 DEG C of temperature；
Step 4, nitrogen blowing deoxygenation 25~30 minutes into solution sequentially add catalyst AZDN 1g/ under nitrogen protection
L, V50 0.1g/L, ammonium persulfate 0.1g/L, sodium hydrogensulfite 0.1g/L induce 15 until stopping nitrogen blowing after solution thickening
It~20 minutes, has seen whether temperature rise, when the temperature rise for having 2 DEG C in inductive phase, has been considered as and causes successfully, then in heat preservation confined condition
Under after temperature is raised to 85~95 DEG C of the highest temperature there is no start when the sign of heating heat preservation 3 hours；Step 5, both sexes poly- third
The preparation of acrylamide flocculant is completed, and the colloid having polymerize is granulated, and is dried, is ground into 20 mesh, number HT9033.
Embodiment 4
In the present embodiment, the mass fraction of monomer and water includes in amphoteric polyacrylamide flocculating agent:
Acrylamide: 20 weight %；
MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride: 5 weight %；
2- acrylamide-2-methyl propane sulfonic: 10 weight %；
Acrylic acid: 5 weight %；
Water: 60 weight %.
Amphoteric polyacrylamide flocculating agent the preparation method comprises the following steps:
Step 1 weighs acrylamide 200g, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 50g, 2- acrylamide -2-
Methyl propane sulfonic acid 100g, acrylic acid 50g；
Distilled water 600g is added in step 2 in 2000ml beaker, and acrylamide 200g, methylacryoyloxyethyl is added
Trimethyl ammonium chloride 50g, be added 2- acrylamide-2-methyl propane sulfonic 100g, be added acrylic acid 50g, stirring and dissolving 30 minutes,
It is slowly added to neutralizer sodium hydroxide under agitation to pH 6.5 ± 0.5；Continue agitating solution to cure 30 minutes；
Step 3, cured according to solution after pH value range, utilize pH value alkaline conditioner sodium carbonate or pH value acidity to adjust
Agent phosphoric acid adjusts pH value to 6.5 ± 0.5 again, adjusts 15 ± 1 DEG C of temperature；
Step 4, nitrogen blowing deoxygenation 25~30 minutes into solution sequentially add catalyst AZDN 1g/ under nitrogen protection
L, V50 0.1g/L, ammonium persulfate 0.1g/L, sodium hydrogensulfite 0.1g/L induce 15 until stopping nitrogen blowing after solution thickening
It~20 minutes, has seen whether temperature rise, when the temperature rise for having 2 DEG C in inductive phase, has been considered as and causes successfully, then in heat preservation confined condition
Under after temperature is raised to 85~95 DEG C of the highest temperature there is no start when the sign of heating heat preservation 3 hours；
Step 5, amphoteric polyacrylamide flocculating agent preparation are completed, and the colloid having polymerize is granulated, is dried, is crushed
At 20 mesh, number HT9044.
The concentration for the polymerization catalyst being added in Examples 1 to 4 is as shown in table 1.
The concentration for the catalyst being added in each embodiment of table 1
Chemical index performance test results such as 2 institute of table of prepared amphoteric polyacrylamide flocculating agent in Examples 1 to 4
Show.
2 chemical index performance test results of table
Amphoteric polyacrylamide flocculating agent prepared in Examples 1 to 4 is done application in ferrotianium tailing by the present invention
Amphoteric polyacrylamide flocculating agent prepared in Examples 1 to 4 is configured to 0.3 ‰ concentration by the detection of energy aspect respectively
Flocculant aqueous solution, choosing tested pulp density is 8.2%, and 500ml ore pulp is taken to be placed on the 500ml graduated cylinder of cylindrical type respectively
In, then amphoteric polyacrylamide flocculating agent and anionic polyacrylamide prepared in Examples 1 to 4 respectively with different throwings
Dosage is added, and measures ore pulp from settling time used, test result such as 3 institute of table between 450ml~400ml with stopwatch
Show.
3 sedimentation time of table
From the point of view of the application test result of table 3, when tailings concentration is 8.2%, the amphiprotic polyacrylamide that 0.5ml is added is wadded a quilt with cotton
When solidifying agent, converting into dosage is 3.7g/t dry mine, and sinking speed HT9022, HT9011, HT9033, HT9044 are anion poly- third
2 times of acrylamide；When the amphoteric polyacrylamide flocculating agent of 0.3ml is added, dosage 2.2g/t dry mine, sinking speed are converted into
HT9022, HT9011, HT9033, HT9044 are 4 times of anionic polyacrylamide；When the both sexes polyacrylamide that 0.2ml is added
When amine flocculant, converting into dosage is 1.5g/t dry mine, and sinking speed HT9022, HT9011, HT9033, HT9044 are anion
6 times of polyacrylamide；Either clear liquid is spent clearly or sinking speed, amphoteric polyacrylamide flocculating agent performance are superior to commonly
Anionic polyacrylamide.
It is noted that in above-described embodiment, the concentration of catalyst in the redox (-)catalyst system that step 4 is added
To be added to the concentration in solution.
It is noted that the thickening in step 4 can be used naked eyes and be observed in above-described embodiment, when viscosity is small,
Generated bubble is smaller after being blown into nitrogen, and when viscosity increases, generated bubble increases.
It is noted that will draw after rejoining oxidation reduction catalyst for the second time if causing not successfully for the first time
It sends out successfully.
In conclusion the present invention provides a kind of for ore dressing and the amphoteric polyacrylamide flocculating agent and system of tailings glass
Preparation Method, the present invention prepared by amphoteric polyacrylamide flocculating agent have wide applicability, can be used for gold, silver, copper,
In iron, manganese, aluminium, nickel minerals and their tailings glass, meanwhile, amphoteric polyacrylamide flocculating agent of the present invention has dissolution speed
The distinguishing feature that degree is fast, dosage is small, selective flocculation ability is strong.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of method for preparing the amphoteric polyacrylamide flocculating agent for ore dressing and tailings glass, which is characterized in that pass through
The mode that aqueous solution chlorination reducing catalyst method generates free radicals is copolymerized obtained, mainly comprises the steps that
Step 1, in mass ratio example weigh acrylamide, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, 2- acrylamide -2- first
Four kinds of base propane sulfonic acid, acrylic acid monomers；
The addition of above-mentioned four kinds of monomers is placed with stirring and dissolving formation solution in the beaker of distilled water by step 2, and in whipping process
The pH value that neutralizer adjustment solution is added is 6.0~7.0, continues agitating solution and cures 25~40 minutes；
PH value and temperature that pH adjusting agent adjusts solution after curing are added into solution after curing for step 3, and the pH value is
6.0~7.0, temperature is 15~20 DEG C；
Step 4 is blown into nitrogen into the solution after step 3 adjusting curing, is then added and aoxidizes into the solution adjusted after curing
Reducing catalyst system induces monomer co-polymeric until stopping nitrogen blowing after solution thickening, when there is at least 2 DEG C of temperature in inductive phase
It rises, then causes success；When less than 2 DEG C temperature rises in inductive phase, then induces not successfully, need to rejoin the oxidation of identical quantity also
Raw catalyst system causes again；After causing successfully, heat preservation；
Step 5, amphoteric polyacrylamide flocculating agent preparation are completed, and the colloid having polymerize is granulated, dries, is ground into 20
Mesh；
The amphoteric polyacrylamide flocculating agent raw material includes monomer and water；The wherein mass fraction composition of monomer are as follows:
The molecular weight of the amphoteric polyacrylamide flocculating agent is 800~15,000,000；
In the step 2, the neutralizer is sodium hydroxide or sodium carbonate；In the step 3, the pH adjusting agent is pH alkali
Property regulator and pH acid regulator；
In the step 4, it is 25 minutes that the time of nitrogen is blown into the solution adjusted after curing；Induction time range is 15~
20 minutes；
In the step 4, the redox (-)catalyst system is azo-compound, Oxidizing and Reducing Agents；The oxidation is also
The order of addition of raw catalyst system is azo-compound, Oxidizing and Reducing Agents；
The azo-compound be one of azodiisobutyronitrile, azobisisoheptonitrile or azo diisobutyl amidine hydrochloride or
It is several；The oxidant is persulfate, peroxide；The reducing agent is sulphite or bisulfites；
In the step 4, after causing successfully, start to protect after temperature is raised to 85~95 DEG C of the highest temperature under confined conditions keeping the temperature
Temperature 2 hours；
The quality of the redox (-)catalyst system is the 0.001%~3% of four kinds of monomer masses.
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| CN114261978A (en) * | 2021-12-22 | 2022-04-01 | 四川省洪雅青衣江元明粉有限公司 | Efficient purification method of saltpeter water |
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| CN101514239A (en) * | 2008-12-30 | 2009-08-26 | 上海东升新材料有限公司 | Amphoteric polyacrylamide and preparation method thereof |
| US20100170856A1 (en) * | 2009-01-06 | 2010-07-08 | Branning Merle L | Improvement separation of solids from liquids by the use of quick inverting and dispersing flocculants |
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