CN1186455A - Method of depressing non-sulfide silicate gangue minerals - Google Patents
Method of depressing non-sulfide silicate gangue minerals Download PDFInfo
- Publication number
- CN1186455A CN1186455A CN96194427A CN96194427A CN1186455A CN 1186455 A CN1186455 A CN 1186455A CN 96194427 A CN96194427 A CN 96194427A CN 96194427 A CN96194427 A CN 96194427A CN 1186455 A CN1186455 A CN 1186455A
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- CN
- China
- Prior art keywords
- mineral
- inhibitor
- pva
- polyvinyl alcohol
- acrylamide
- Prior art date
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- Pending
Links
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 50
- 239000011707 mineral Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 35
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims abstract description 23
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title abstract description 21
- 230000000881 depressing effect Effects 0.000 title 1
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 64
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 61
- 229920000578 graft copolymer Polymers 0.000 claims abstract description 20
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 18
- 150000004676 glycans Chemical class 0.000 claims abstract description 17
- 229920001282 polysaccharide Polymers 0.000 claims abstract description 17
- 239000005017 polysaccharide Substances 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000003112 inhibitor Substances 0.000 claims description 51
- 229920002907 Guar gum Polymers 0.000 claims description 27
- 239000000665 guar gum Substances 0.000 claims description 27
- 229960002154 guar gum Drugs 0.000 claims description 27
- 235000010417 guar gum Nutrition 0.000 claims description 27
- 229910052569 sulfide mineral Inorganic materials 0.000 claims description 23
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 229920000642 polymer Polymers 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 7
- CERQOIWHTDAKMF-UHFFFAOYSA-N alpha-methacrylic acid Natural products CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000007334 copolymerization reaction Methods 0.000 claims description 5
- 238000009291 froth flotation Methods 0.000 claims description 5
- 229920002472 Starch Polymers 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 4
- 239000008107 starch Substances 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 125000005670 ethenylalkyl group Chemical group 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 36
- 238000005188 flotation Methods 0.000 description 21
- 239000012141 concentrate Substances 0.000 description 17
- 239000000243 solution Substances 0.000 description 11
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 9
- 239000000391 magnesium silicate Substances 0.000 description 9
- 229910052919 magnesium silicate Inorganic materials 0.000 description 9
- 235000019792 magnesium silicate Nutrition 0.000 description 9
- -1 alkyl acrylamide class Chemical class 0.000 description 8
- 230000005764 inhibitory process Effects 0.000 description 7
- 229910052684 Cerium Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 5
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 229910052609 olivine Inorganic materials 0.000 description 4
- 239000010450 olivine Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910052611 pyroxene Inorganic materials 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- RZFBEFUNINJXRQ-UHFFFAOYSA-M sodium ethyl xanthate Chemical compound [Na+].CCOC([S-])=S RZFBEFUNINJXRQ-UHFFFAOYSA-M 0.000 description 4
- 229920001897 terpolymer Polymers 0.000 description 4
- UZKWTJUDCOPSNM-UHFFFAOYSA-N 1-ethenoxybutane Chemical compound CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 229910052903 pyrophyllite Inorganic materials 0.000 description 3
- 229910052604 silicate mineral Inorganic materials 0.000 description 3
- 229920001059 synthetic polymer Polymers 0.000 description 3
- 229910052623 talc Inorganic materials 0.000 description 3
- 239000000454 talc Substances 0.000 description 3
- 235000012222 talc Nutrition 0.000 description 3
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 229910052612 amphibole Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 229920005601 base polymer Polymers 0.000 description 2
- 229910052626 biotite Inorganic materials 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- XMPZTFVPEKAKFH-UHFFFAOYSA-P ceric ammonium nitrate Chemical compound [NH4+].[NH4+].[Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O XMPZTFVPEKAKFH-UHFFFAOYSA-P 0.000 description 2
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012622 synthetic inhibitor Substances 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 description 1
- DELJNDWGTWHHFA-UHFFFAOYSA-N 1-azaniumylpropyl(hydroxy)phosphinate Chemical compound CCC(N)P(O)(O)=O DELJNDWGTWHHFA-UHFFFAOYSA-N 0.000 description 1
- PRAMZQXXPOLCIY-UHFFFAOYSA-N 2-(2-methylprop-2-enoyloxy)ethanesulfonic acid Chemical compound CC(=C)C(=O)OCCS(O)(=O)=O PRAMZQXXPOLCIY-UHFFFAOYSA-N 0.000 description 1
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 description 1
- MSWZFWKMSRAUBD-UHFFFAOYSA-N 2-Amino-2-Deoxy-Hexose Chemical compound NC1C(O)OC(CO)C(O)C1O MSWZFWKMSRAUBD-UHFFFAOYSA-N 0.000 description 1
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 description 1
- NEYTXADIGVEHQD-UHFFFAOYSA-N 2-hydroxy-2-(prop-2-enoylamino)acetic acid Chemical compound OC(=O)C(O)NC(=O)C=C NEYTXADIGVEHQD-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- GWZMWHWAWHPNHN-UHFFFAOYSA-N 2-hydroxypropyl prop-2-enoate Chemical compound CC(O)COC(=O)C=C GWZMWHWAWHPNHN-UHFFFAOYSA-N 0.000 description 1
- LPNSCOVIJFIXTJ-UHFFFAOYSA-N 2-methylidenebutanamide Chemical compound CCC(=C)C(N)=O LPNSCOVIJFIXTJ-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 101100010166 Mus musculus Dok3 gene Proteins 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 101710145642 Probable Xaa-Pro aminopeptidase P Proteins 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- KWKOTMDQAMKXQF-UHFFFAOYSA-N [2-methyl-2-(prop-2-enoylamino)propyl]phosphonic acid Chemical compound OP(=O)(O)CC(C)(C)NC(=O)C=C KWKOTMDQAMKXQF-UHFFFAOYSA-N 0.000 description 1
- NQHQYJDYGSHQEL-UHFFFAOYSA-N [2-methyl-2-(prop-2-enoylamino)propyl]phosphonic acid prop-2-enenitrile Chemical compound C=CC#N.OP(=O)(O)CC(C)(C)NC(=O)C=C NQHQYJDYGSHQEL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052891 actinolite Inorganic materials 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 229910052885 anthophyllite Inorganic materials 0.000 description 1
- 229910052898 antigorite Inorganic materials 0.000 description 1
- HKVFISRIUUGTIB-UHFFFAOYSA-O azanium;cerium;nitrate Chemical class [NH4+].[Ce].[O-][N+]([O-])=O HKVFISRIUUGTIB-UHFFFAOYSA-O 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 229910052637 diopside Inorganic materials 0.000 description 1
- 229910052634 enstatite Inorganic materials 0.000 description 1
- ZTWTYVWXUKTLCP-UHFFFAOYSA-L ethenyl-dioxido-oxo-$l^{5}-phosphane Chemical compound [O-]P([O-])(=O)C=C ZTWTYVWXUKTLCP-UHFFFAOYSA-L 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethyl mercaptane Natural products CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 229910052840 fayalite Inorganic materials 0.000 description 1
- 229910052635 ferrosilite Inorganic materials 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 238000010559 graft polymerization reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052899 lizardite Inorganic materials 0.000 description 1
- BBCCCLINBSELLX-UHFFFAOYSA-N magnesium;dihydroxy(oxo)silane Chemical compound [Mg+2].O[Si](O)=O BBCCCLINBSELLX-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- AADPGYDUTSGSMI-UHFFFAOYSA-N n-(1-hydroxypropyl)prop-2-enamide Chemical compound CCC(O)NC(=O)C=C AADPGYDUTSGSMI-UHFFFAOYSA-N 0.000 description 1
- IPGRTXQKFZCLJS-UHFFFAOYSA-N n-(2-hydroxypropyl)prop-2-enamide Chemical compound CC(O)CNC(=O)C=C IPGRTXQKFZCLJS-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 150000008278 pentosamines Chemical class 0.000 description 1
- 229910052628 phlogopite Inorganic materials 0.000 description 1
- 229910052585 phosphate mineral Inorganic materials 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000000886 photobiology Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- GNBVPFITFYNRCN-UHFFFAOYSA-M sodium thioglycolate Chemical compound [Na+].[O-]C(=O)CS GNBVPFITFYNRCN-UHFFFAOYSA-M 0.000 description 1
- 229940046307 sodium thioglycolate Drugs 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 229910052889 tremolite Inorganic materials 0.000 description 1
- IBPRKWGSNXMCOI-UHFFFAOYSA-N trimagnesium;disilicate;hydrate Chemical compound O.[Mg+2].[Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IBPRKWGSNXMCOI-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 229960000281 trometamol Drugs 0.000 description 1
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/016—Macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/008—Organic compounds containing oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/01—Organic compounds containing nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Paper (AREA)
- Silicon Compounds (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A method for the depression of non-sulfide, silicate gangue minerals is provided wherein the depressant is a graft polymer of polyvinyl alcohol and an acrylamide or a mixture thereof with a polysaccharide.
Description
The background of invention
The present invention relates to from base metal (base metal) sulfide ore, reclaim the froth flotation method of valuable sulfide mineral.Relate in particular to a kind of method that in the process of using the valuable sulfide mineral of froth flotation method selected works, suppresses the unsulfided silicate gangue mineral.
Some theory and practice propose, and the reagent that is called collector is depended in the success of sulphide flotation method to a great extent, and this reagent makes the valuable mineral that must separate from other mineral have the selection hydrophobicity.
Valuable sulfide also depends on some other important reagent with the success that separates of other mineral, as modifier.Modifier comprises (but needn't fixed limit in) major function neither short collection neither foam, and all reagent that normally it can not be floated the surface modification of mineral.
Improve valuable sulfide mineral FLOTATION SEPARATION approach except attempt making the sulphide flotation collecting agent to the selectivity of valuable sulfide mineral stronger, also comprise use modifier, using more particularly, inhibitor suppresses the unsulfided gangue mineral, they can not floated with sulfide, thereby reduce the content of unsulfided gangue mineral in concentrate.Inhibitor is that a kind of acting on selectively on the specific unwanted mineral prevents or hinder the modifying agent that they float.
In the valuable mineral floating process of sulfide, the only problem of these unsulfided silicate gangue mineral is that they have natural buoyancy, and promptly they can not rely on the valuable mineral floating collecting agent of used sulfide and float.Even use the very strong valuable mineral floating collecting agent of sulfide of selectivity, these silicate minerals still can appear in the sulfide concentrate.Trouble is talcum and pyrophyllite (both all belong to magnesium silicate type) especially, because they have natural high hydrophobicity.As if other magnesium silicate mineral that belong to olivine, pyroxene and serpentine class have buoyancy in various degree, different with the mineral deposit.These unwanted mineral are present in the valuable mineral concentrate of sulfide, caused many problems: a) they have increased the amount of concentrate, therefore improved the cost of handling and transport concentrate, b) they fight for the space in flotation stage mutually at foam, therefore reduced the overall recovery of the valuable mineral of sulfide, c) they have diluted the content of the valuable sulfide mineral in the sulfide concentrate, this makes concentrate not too be suitable for (being unsuitable in some cases) melting, because unwanted mineral have hindered smelting operation.
The inhibitor that is generally used for sulphide flotation comprises as inorganic salts (NaCN, NaHS, SO
2, sodium pyrosulfite etc.) and the material of a small amount of organic compound (as sodium thioglycolate, mercaptoethanol etc.).Known these inhibitor can suppress sulfide mineral, but and do not know whether they are inhibitor of non-sulfide mineral, the collector of valuable sulfide is not the collector of good valuable mineral of unsulfided usually just as is known.It is very big that the body of sulfide mineral and unsulfided mineral and surface chemical property differ, and they also have greatest differences for the reaction of different chemical substances.At present, use some polysaccharides (as guar gum and carboxymethyl cellulose) during sulphide flotation, the unsulfided silicate gangue mineral to be suppressed.Yet their performance is very unstable, and their inhibition abilities on some ores are unacceptable, simultaneously the required effective dose very high usually (high to 1-10 lbs/ton) of ore per ton.Their inhibition ability also can be subjected to the influence in its source, and every batch all inconsistent.And these polysaccharides also are the useful sources of food, that is to say, they have been reduced their application on food as inhibitor, and their storage simultaneously exists special problem: they can become the food of insect.At last, they are not easy to miscible or are dissolved in water, even it is also unstable to form the aqueous solution.United States Patent (USP) 4,902,764 (Rothenberg etc.) have been described and have been used to reclaim valuable sulfide mineral being the synthetic copolymer of base and terpolymer with the polyacrylamide as the inhibitor of sulfide mineral.United States Patent (USP) 4,720,339 (Nagaraj etc.) have described and have been used for the valuable mineral of flotation unsulfided being the synthetic copolymer of base and terpolymer with the polyacrylamide as the inhibitor of siliceous gangue mineral, but are not the inhibitor as the valuable mineral selected works of sulfide process.' 339 patent is described to these polymer can suppress silica effectively during the phosphate flotation, aliphatic acid and unsulfided collector are also used in this phosphate flotation in flotation step.The patentee does not mention the effective inhibitors that these polymer are the unsulfided silicate gangue mineral during valuable sulfide mineral reclaims.In fact, in the process that valuable mineral are useful to sulfide, these inhibitor do not show the inhibition ability to the appropriateness of unsulfided silicate mineral.United States Patent (USP) 4,220,525 (Petrovich) have been put down in writing polyhydroxy amine and have been used to reclaim the valuable mineral of unsulfided as the inhibitor of gangue mineral (comprising silica, silicate, carbonate, sulfate and phosphate).The example of the polyhydroxy amine that is disclosed comprises tromethamine, aminopartitols, aminohexose alcohol, amino heptitols, aminooctitols, pentosamine, hexosamine, amino-tetrols etc.United States Patent (USP) 4,360,425 (Lim etc.) have been recorded and narrated a kind of modification method that improves the froth flotation method that reclaims the valuable mineral of unsulfided, have wherein applied the synthetic inhibitor of hydroxyl and carboxyl functional group.These inhibitor add second step or the amine flotation step of two step floatations, are used for suppressing during amine flotation siliceous gangue from the concentrate in second step valuable mineral of unsulfided such as phosphate mineral.This patent only relates to uses the synthetic profit that suppresses during the amine flotation.
In view of the above, especially United States Patent (USP) 4,902, described in 764 with specific be that the copolymer and the terpolymer of base is used for suppressing sulfide mineral with the polyacrylamide when reclaiming valuable sulfide mineral, we find that unexpectedly these polymer (use separately or be used in combination with polysaccharide) are the good inhibitor of unsulfided silicate gangue mineral (as talcum, pyroxene, olivine, serpentine, pyrophyllite, chlorite, biotite, amphibole etc.) really.Now find these synthetic polymer inhibitors with and with the mixture of polysaccharide be the good substitute of the polysaccharide that uses separately at present because they are easy to miscible or are dissolved in water, safety and their stabilized aqueous solution.Use them can increase the utilizability of the polysaccharide of originating as valuable human foods at this, their performance also is stable simultaneously.And these polymer can prepare according to bright book strictly speaking, therefore can guarantee every batch of consistency of product.Synthetic polymer helps more easily to change its structure, and thus, the special inhibitor that obtains being suitable for given occasion becomes possibility.
The general introduction of invention
The invention provides a kind of valuable sulfide mineral of selected works from ore that comprises, discard the method for unsulfided silicate gangue mineral simultaneously selectively:
A. form the moisture liquid slurry of ore particles in small, broken bits, that separate out size, wherein contain described valuable sulfide mineral and described unsulfided silicate gangue mineral;
B. use the unsulfided silicate gangue mineral inhibitor of effective dose, valuable sulfide mineral collector and frothing agent that described liquid slurry is regulated, described inhibitor comprises (1) a kind of polyvinyl alcohol polymer, the acrylamide monomer grafting is arranged on it, and optional a kind of can with the comonomer of described acrylamide monomer copolymerization, perhaps described mixture of polymers, the perhaps mixture of (2) described a kind of polymer or multiple polymers and polysaccharide;
C. collect valuable sulfide mineral by froth flotation method, wherein the content of unsulfided silicate gangue mineral decreases.
The description that comprises preferable embodiment of invention
The used polymer inhibitor of the present invention comprises, as grafted monomers, as acrylic amide (as acrylamide itself), alkyl acrylamide class (as Methacrylamide, ethyl acrylamide etc.).
Comonomer comprise can with any monoene unsaturated monomer of acrylamide monomer copolymerization, as hydroxyalkyl acrylate and hydroxyalkyl methacrylate, for example acrylic acid 1,2-dihydroxy propyl ester or methacrylic acid 1,2-dihydroxy propyl ester, hydroxy-ethyl acrylate or hydroxyethyl methacrylate, GMA, acrylamido glycolic (acrylamido glycolic acid); Hydroxyalkyl acrylamide, for example the N-2-ethoxy third uncommon acid amides, N-1-hydroxypropyl acrylamide, N-two (1, the 2-dihydroxy ethyl) acrylamide, N-two (2-hydroxypropyl) acrylamide etc.; Acrylic acid; Methacrylic acid; The alkali metal salts or ammonium salt of acrylic acid and/or methacrylic acid; The sulfonic acid vinyl acetate; Vinyl phosphonate; 2-acrylamido-2-methyl propane sulfonic acid; Styrene sulfonic acid; Maleic acid; Fumaric acid; Crotonic acid; Methacrylic acid 2-sulfo group ethyl ester (2-sulfoethylmethacrylate); 2-acrylamido-2-methylpropanephosphonic acid acrylonitrile; Vinyl alkyl ethers, for example vinyl butyl ether etc.
The scope of effective weight average molecular weight of polyvinyl alcohol is unexpectedly wide, from least about 10,000, preferably from about 30,000 to millions of as 2,000,000, preferably to about 1,000,000.
In the inventive method in the used inhibitor combination used polysaccharide component comprise guar gum; The guar gum of modification; Cellulose such as carboxymethyl cellulose; Starch etc.Be preferably guar gum.
The scope of the ratio of polysaccharide and graft polymers is about 9: 1 to about 1: 9 in the inhibitor combination, is about 7: 3 to about 3: 7 preferably, and best is about 3: 2 to 2: 3.
In the inventive method the scope of the dosage of used inhibitor be ore per ton about 0.01 to about 10 pounds of inhibitor, be about 0.1-5 pound/ton preferably, the best 0.1-1.0 pound/ton ore that is about.
When the mixture of above-mentioned grafted polyethylene alkoxide polymer was used as inhibitor, their consumption ratio was 9: 1 to 1: 9, is 3: 1 to 1: 3 preferably, and best is 3: 2 to 2: 3.
The scope of the weight ratio of acrylamide and polyvinyl alcohol is about 99: 1 to about 1: 1 in the used inhibitor of the present invention, is about 10: 1 to about 4: 1 preferably.But the concentration of the comonomer of optional copolymerization should be about 1-30% of monomer total amount less than about 50% (weight) preferably.
The preparation of acrylamide monomer grafted polyvinyl alcohol can be undertaken by the known any method of those skilled in the art, as EPO-A-117978; The Dokl.Akad.Nauk Uter.SSR of Melnik etc., SerB; Geol.Khim.Brol.Nanki (6), 48-51 (Russian), 1987; The J.Photochem.Photobiol. of Burrows etc. (photochemistry and photobiology magazine) A, 63 (1), 67-73 (English), the method described in 1992.In general, can acrylamide monomer (individually or with optional comonomer) be grafted on the polyvinyl alcohol by following method: in the presence of the catalyst (as cerium ammonium nitrate) of quadrivalent cerium ion, in about 10-50 ℃ temperature range, follow intermittently cooling simultaneously, reacted 2-6 hour.After reaching constant solution viscosity, improve pH value to neutrality or highlyer come cessation reaction by adding rare caustic solution.Catalyst consumption generally is about 0.3-5.0% (weight), is about 0.8-4.0% preferably, all in the comprehensive weight of the monomer of grafting.The catalyst amount scope makes graft polymers have more effective inhibition activity preferably.
Use synthetic inhibitor of the present invention to come the new method of the valuable sulfide mineral of selected works can obtain good metallurgy and reclaim, improved grade (grade) simultaneously again.This method allows the pH value and the inhibitor dosage of relative broad range, and another advantage is that inhibitor can be used with frothing agent and the valuable mineral floating collecting agent of sulfide.
The present invention be directed to and remove the unsulfided silicate gangue mineral selectively,, make them appear at usually in the flotation concentrate of valuable sulfide mineral because they have natural buoyancy or hydrophobicity or other reason.Especially this fast method can suppress unsulfided magnesium silicate mineral effectively, improves the rate of recovery of the valuable mineral of sulfide simultaneously.This method can be handled (but being not limited to) following these materials:
Talcum
Pyrophyllite
Pyroxene in the ore
Diopside
Pyroxene
Hornblend (horneblendes)
Enstatite
Hypersthene
Ferrosilite
Bronzite
Amphibole in the ore
The tremolite
Actinolite
Anthophyllite
Meroxene in the ore
Phlogopite
Biotite
Chlorite class in the ore
Serpentine class in the ore
Serpentine
Chrysolite
Palygorskite
Lizardite
Antigorite (anitgorite)
Olivine class in the ore
Olivine
Forsterite
Hortonolite
Fayalite
Following embodiment only is used for illustrating, should be considered to limitation of the present invention, unless mention in the appended claims.Unless otherwise noted, all parts and percentage number average are by weight.In an embodiment, below represent used monomer:
The AMD=acrylamide
The PVA=polyvinyl alcohol
AA=acrylic acid
The MAMD=Methacrylamide
The AN=acrylonitrile
VBE=vinyl butyl ether
T-BAMD=tert-butyl group acrylamide
HPM=methacrylic acid 2-hydroxypropyl acrylate
AMPP=2-acrylamido-2-methylpropanephosphonic acid
The CMC=carboxymethyl cellulose
C=relatively
Background embodiment 1
The preparation of cerium ammonium nitrate catalyst solution
(0.1M) is dissolved in the nitric acid of 1 liter of 1.0N with 54.82 parts cerium ammonium nitrates.
Background embodiment 2
Graft copolymerization
5.0 parts polyvinyl alcohol (molecular weight is about 10,000) are dissolved in 150 parts of water form solution, 30.9 part 52% acrylamide monomer solution is added wherein.Under good stirring, slowly add 5 parts of above-mentioned cerium catalyst solution.Reactant mixture remains under 25-30 ℃, follows cold water cooling intermittently simultaneously.Graft polymerization reaction is proceeded 3 to 4 hours, until obtaining constant solution viscosity.Reaction is stopped by pH value to the neutrality or alkalescence pH that adds rare caustic solution raising mixture.
Background embodiment 3 and 4
After the above embodiment 2, also prepared AMD and had the graft copolymer of the PVA of higher molecular weight (promptly 20,000 and 50,000).
Background embodiment 5
30.9 part 52% acrylamide monomer solution, 7.2 parts of acrylic monomers are added 5.0 parts of PVA (molecular weight is 50,000) and are dissolved in the solution of 150 parts of water, prepare the terpolymer of grafting.Total amount is that 10 parts cerium catalyst solution is used for this preparation.The preparation of other copolymer similarly, as using acrylonitrile and vinyl butyl ether.
Embodiment 1-10
The ore that will contain about 3.3%Ni and 16.5%MgO (magnesium silicate form) ground in rod mill 5 minutes, obtained being of a size of 81%200 purpose liquid slurry.Then, levigate liquid slurry is transferred in the floation tank, the pH of nature value (～8-8.5) down regulate 2 minutes with 150 parts/ton copper sulphate, the sodium ethylxanthate of 50-100 part/ton is regulated 2 minutes, uses the inhibitor of requirement and the adjusting of pure frothing agent 2 minutes then.Then, (about 3.5-5l/min) carries out first step flotation by bubbling air, collects concentrate.In second step, the liquid slurry is regulated 2 minutes with 10 parts/ton sodium ethylxanthate, the inhibitor and the frothing agent of ormal weight, collects concentrate.Second step, used condition was also used in the 3rd step, collected concentrate.Filter all float products, drying is also measured.
In table 1, the result of the inhibition activity of two kinds of AMD/PVA graft copolymers and the result of guar gum and polyvinyl alcohol are contrasted.Under need not the situation of any inhibitor, the rate of recovery of Ni be 96.6%, and this is considered to very high and desirable; The rate of recovery of MgO is 61.4%, and this is also very high, but very undesirable.4.7% Ni grade of gained is only a little high a little than raw material.Use 420 and 500 parts/ton guar gum, the rate of recovery of MgO is in the scope of 28.3-33.5%, and this is more much lower than the rate of recovery that obtains without inhibitor, and the rate of recovery of Ni is about 93%, and is lower than the rate of recovery that obtains without inhibitor.The rate of recovery of Ni reduces and can estimate in the operation that the rate of recovery of all MgO reduces, because exist some constant mineralogy contacts between Ni mineral and magnesium silicate, when magnesium silicate was suppressed, some Ni mineral also can be suppressed.When using graft copolymer of the present invention, to compare with using guar gum, the rate of recovery of MgO greatly reduces, and the rate of recovery of Ni has reduction slightly when also using guar gum.But the grade of Ni is resulting more much higher than using guar gum in concentrate.These discoveries show that in employed all dosage ranges, graft copolymer all has very strong inhibition activity.These discoveries also show, can use the graft copolymer of less dosage, and in this case, the rate of recovery of Ni can improve, and keep the low MgO rate of recovery simultaneously.
The result also shows, when not using the monomer-grafted polyvinyl alcohol polymer of AMD, metallurgical performance is very poor, suppresses activity and do not have a selectivity.The rate of recovery of Ni greatly reduces (have only 82.9%, the rate of recovery of using graft copolymer under the same conditions is 88%).Therefore, graft copolymer is much more outstanding than polyvinyl alcohol itself.
Table 1 determination of raw material: 3.31%Ni and 17.58%MgO
| Embodiment | Inhibitor | Part/ton | The Ni rate of recovery | The Ni grade | The MgO rate of recovery |
| ????1C | Do not have | ??????0 | ????96.6 | ????4.7 | ???61.4 |
| ????2C | Guar gum | ??350+70+80 | ????93.0 | ????7.7 | ???28.3 |
| ????3C | Guar gum | ??350+60+60 | ????92.9 | ????6.7 | ???33.5 |
| ????4 | ???AMD/PVA(23K)75/25 | ??300+70+80 | ????91.6 | ????9.2 | ???18.7 |
| ????5 | ???AMD/PVA(23K)75/25 | ??350+85+100 | ????90.1 | ????9.6 | ???14.2 |
| ????6 | ???AMD/PVA(23K)75/25 | ??350+70+80 | ????90.0 | ????8.3 | ???20.7 |
| ????7 | ???AMD/PVA(23K)75/25 | ??280+56+64 | ????90.6 | ????7.5 | ???23.0 |
| ????8 | ???AMD/PVA(50K)75/25 | ??350+70+80 | ????88.0 | ????9.5 | ???16.7 |
| ????9 | ???AMD/PVA(50K)75/25 | ??280+56+64 | ????84.8 | ????7.8 | ???17.3 |
| ????10C | ????PVA(50k) | ??350+70+80 | ????82.9 | ????6.4 | ???38.1 |
Embodiment 11-20
Gangue silicate mineral in the ore that will be identical with embodiment 1-10 is handled (unless stipulating in addition according to its floatation) with the inhibitor of 1.0lb/ton dosage.The results are shown in the following table 2.Title is that the numerical value in rate of recovery % (gangue silicate) hurdle is more little, and inhibitor is just good more.
Table 2
| Embodiment | Inhibitor | Rate of recovery % (gangue silicate) |
| ?????11C | Do not have | ????????85 |
| ?????12C | Polyvinyl alcohol | ????????75 |
| ?????13C | Guar gum | ????????3.4 |
| ?????14 | ????60/40?AMD/PVA | ????????8.9 |
| ?????15 | ????75/25?AMD/PVA | ????????8.7 |
| ?????16 | ????80/20?AMD/PVA | ????????3.0 |
| ?????17 | ????87/13?AMD/PVA | ????????1.3 |
| ?????18 | ????90/10?AMD/PVA | ?????????0 |
| ?????19 | ????92.5/7.5?AMD/PVA | ????????7.9 |
| ?????20 | ????97.5/2.5?AMD/PVA | ????????7.8 |
Embodiment 21-24
According to background embodiment 1-5, change the amount of quadrivalent cerium ionic catalyst, preparation PVA graft copolymer.Carry out flotation according to embodiment 11-20, the results are shown in the following table 3.
Table 3
| Embodiment | Inhibitor | Catalyst (cerium) % | Rate of recovery % (gangue silicate) |
| ????21 | ????75/25?AMD/PVA | ?????0.5 | ????44.6 |
| ????22 | ????75/25?AMD/PVA | ?????1.3 | ????8.7 |
| ????23 | ????75/25?AMD/PVA | ?????1.96 | ????3.0 |
| ????24 | ????75/25?AMD/PVA | ?????2.6 | ????2.6 |
Embodiment 25-28
Except using different graft copolymers, other carries out flotation by embodiment 11-20.The results are shown in the following table 4.
Table 4
| Embodiment | Inhibitor | Rate of recovery % (gangue silicate) |
| ????25 | ????AMD/AN/PVA?80/10/10 | ?????7.75 |
| ????26 | ????AMD/AN/PVA?85/5/10 | ?????3.28 |
| ????27 | ????AMD/AA/PVA?66/24/10 | ?????16.60 |
| ????28 | ????AMD/VBE/PVA?80/10/10 | ?????14.70 |
Embodiment 29-31
Except the molecular weight variation of PVA, other carries out flotation by embodiment 11-20.The results are shown in the following table 5.
Table 5
| Embodiment | Inhibitor | Molecular weight (PVA) | Rate of recovery % (gangue silicate) |
| ????35 | ????90/10?AMD/PVA | ????9-10K | ?????7.1 |
| ????36 | ????90/10?AMD/PVA | ????13-23K | ?????4.6 |
| ????37 | ????90/10?AMD/PVA | ????31-50K | ?????3.3 |
Embodiment 38
Except 1: 1 mixture of the inhibitor that uses embodiment 8 and embodiment 27 as the inhibitor, other carries out flotation by embodiment 1-10.Obtain identical result.
Embodiment 39-42
The ore that will contain about 3.3%Ni and 16.5%MgO (magnesium silicate form) ground in rod mill 5 minutes, obtained being of a size of 81%200 purpose liquid slurry.Then, levigate liquid slurry is transferred in the floation tank, the pH of nature value (～8-8.5) down regulate 2 minutes with 150 parts/ton copper sulphate, the sodium ethylxanthate of 50-100 part/ton is regulated 2 minutes, uses the inhibitor mixed thing of requirement and the adjusting of pure frothing agent 2 minutes then.Then, (about 3.5-5l/min) carries out first step flotation by bubbling air, collects concentrate.In second step, the liquid slurry is regulated 2 minutes with 10 parts/ton sodium ethylxanthate, the inhibitor mixed thing and the frothing agent of ormal weight, collect concentrate.Second step, used condition was also used in the 3rd step, collected concentrate.Filter all float products, drying is also measured.
In table 6, with the result of the inhibition activity of 1: 1 mixture of AMD/PVA graft copolymer and guar gum with the guar gum that uses same dose separately with use the result of the graft copolymer of same dose to contrast separately.Under need not the situation of any inhibitor, the rate of recovery of Ni be 96.6%, and this is considered to very high and desirable; The rate of recovery of MgO is 61.4%, and this is also very high, but very undesirable.4.7% Ni grade of gained is only a little high a little than raw material.Use 500 parts/ton guar gum, the rate of recovery of MgO is 28.3%, and this is more much lower than the rate of recovery that obtains without inhibitor, and the rate of recovery of Ni is about 93%, and is also low than the rate of recovery that obtains without inhibitor.The rate of recovery of Ni reduces and can estimate in the operation that the rate of recovery of all MgO reduces, because exist some constant mineralogy contacts between Ni mineral and magnesium silicate, when magnesium silicate was suppressed, some Ni mineral also can be suppressed.Use the AMD/PVA graft copolymer of same dose to compare with guar gum, the rate of recovery of MgO has significantly reduced.Yet, use the guar gum of same dose and the mixture of synthetic polymer to compare with using two kinds of components respectively, suppressing activity has further increased.The grade of Ni has also increased in the concentrate.The result also shows the mixture that can use less dosage, and in this case, the rate of recovery of Ni can increase, and keeps the low MgO rate of recovery simultaneously.
Table 6 determination of raw material: 3.31%Ni and 17.58%MgO
| Embodiment | Inhibitor | Part/ton | The Ni rate of recovery | The Ni grade | The MgO rate of recovery |
| ????39C | Do not have | ????????0 | ????96.6 | ????4.7 | ???61.4 |
| ????40C | Guar gum | ????350+70+80 | ????93.0 | ????7.7 | ???28.3 |
| ????41C | ?AMD/PVA(23K)75/25 | ????350+70-80 | ????90.0 | ????8.3 | ???20.7 |
| ????42 | 1: 1 guar gum and AMD/PVA (23K) 75/25 | ????300+70+80 | ????88.6 | ????9.2 | ???18.7 |
Embodiment 43-53
Carry out flotation by embodiment 39-42, different is to change inhibitor component.Inhibitor component and concentration thereof are listed in the table below in 7, obtain similar result.
Table 7
| Embodiment | Graft copolymer (GP) | Polysaccharide (PS) | GP: PS ratio |
| ????43 | ??AMD/AN/PVA?80/10/10 | Guar gum | ????9∶1 |
| ????44 | ??AMD/PVA(50K)?75/25 | ????CMC | ????4∶1 |
| ????45 | ??AMD/AA/PVA?66/24/10 | Starch | ????1∶1 |
| ????46 | ??AMD/PVA?97.5/2.5 | Guar gum | ????1∶9 |
| ????47 | ??AMD/AN/PVA?85/5/10 | The modification guar gum | ????2∶3 |
| ????48 | ??AMD/PVA?87/13 | Starch | ????3∶2 |
| ????49 | ??AMD/VBE/PVA?80/10/10 | Guar gum | ????2∶1 |
| ????50 | ??AMD/PVA * | ????CMC | ????1∶1 |
| ????51 | ??AMD/PVA(9-10K) | Guar gum | ????3∶2 |
| ????52 | ??AMD/PVA(13-23K) | Guar gum | ????3∶2 |
| ????53 | ??AMD/PVA(31-50K) | Guar gum | ????3∶1 |
*Cerium catalyst preparation with 2.6%
Claims (11)
1. one kind comprises the valuable sulfide mineral of selected works from ore, discards the method for unsulfided silicate gangue mineral simultaneously selectively, comprising:
A. form the moisture liquid slurry of ore particles in small, broken bits, that separate out size, wherein contain described valuable sulfide mineral and described unsulfided silicate gangue mineral;
B. use the non-silicate gangue mineral inhibitor of effective dose, valuable sulfide mineral collector and frothing agent that described liquid slurry is regulated, described inhibitor comprises (1) a kind of polyvinyl alcohol polymer, acrylamide graft is arranged on it, and optional a kind of can with the comonomer of described acrylamide copolymerization, the perhaps mixture of (2) described polymer and a kind of polysaccharide;
C. collect valuable sulfide mineral by froth flotation method, wherein the content of unsulfided silicate gangue mineral decreases.
2. the method for claim 1 is characterized in that the weight ratio of acrylamide and polyvinyl alcohol was respectively about 99: 1 to about 1: 1.
3. the method for claim 1 is characterized in that graft polymers contains the described comonomer that is less than about 50 percetages by weight.
4. the method for claim 1 is characterized in that the molecular weight of polyvinyl alcohol is at least about 10,000.
5. the method for claim 1 is characterized in that when described comonomer existed, it was selected from acrylonitrile, (methyl) acrylic acid and vinyl alkyl ethers.
6. the method for claim 1, the weight ratio that it is characterized in that acrylamide and polyvinyl alcohol is about 10: 1 to about 4: 1.
7. the method for claim 1 is characterized in that graft polymers contains the described comonomer of 1 to 30 percetage by weight of having an appointment.
8. the method for claim 1 is characterized in that the molecular weight of described polyvinyl alcohol is at least 30,000.
9. the method for claim 1 is characterized in that polysaccharide is a guar gum.
10. the method for claim 1 is characterized in that polysaccharide is a carboxymethyl cellulose.
11. the method for claim 1 is characterized in that polysaccharide is a starch.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/473,422 US5525212A (en) | 1995-06-07 | 1995-06-07 | Method of depressing non-sulfide silicate gangue minerals |
| US08/473,422 | 1995-06-07 | ||
| US08/475,161 US5507395A (en) | 1995-06-07 | 1995-06-07 | Method of depressing non-sulfide silicate gangue minerals |
| US08/475,161 | 1995-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1186455A true CN1186455A (en) | 1998-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96194427A Pending CN1186455A (en) | 1995-06-07 | 1996-05-07 | Method of depressing non-sulfide silicate gangue minerals |
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| Country | Link |
|---|---|
| EP (1) | EP0830209B1 (en) |
| CN (1) | CN1186455A (en) |
| AT (1) | ATE183115T1 (en) |
| AU (1) | AU693029B2 (en) |
| BG (1) | BG62124B1 (en) |
| BR (1) | BR9609098A (en) |
| CA (1) | CA2222871A1 (en) |
| DE (1) | DE69603727D1 (en) |
| OA (1) | OA10640A (en) |
| PL (1) | PL180626B1 (en) |
| RU (1) | RU2140329C1 (en) |
| WO (1) | WO1996040439A1 (en) |
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| CN101844110A (en) * | 2010-06-11 | 2010-09-29 | 中国地质科学院郑州矿产综合利用研究所 | Sulfide ore flotation layered silicate mineral inhibitor and preparation method thereof |
| CN105537004A (en) * | 2015-12-15 | 2016-05-04 | 云南省化工研究院 | Preparing method for phosphogypsum flotation collector |
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| US8720694B2 (en) * | 2008-07-25 | 2014-05-13 | Cytec Technology Corp. | Flotation reagents and flotation processes utilizing same |
| CN104399594A (en) * | 2014-11-21 | 2015-03-11 | 广西大学 | Preparation method and application of flotation separation inhibitor of zinc-sulfur minerals |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2740522A (en) * | 1953-04-07 | 1956-04-03 | American Cyanamid Co | Flotation of ores using addition polymers as depressants |
| AU502457B2 (en) * | 1971-06-02 | 1979-07-26 | Ici Australia Limited | Depressants |
| US4360425A (en) * | 1981-09-14 | 1982-11-23 | American Cyanamid Company | Low molecular weight copolymers and terpolymers as depressants in mineral ore flotation |
| EP0117978A1 (en) * | 1983-02-07 | 1984-09-12 | American Cyanamid Company | Novel process for polymers |
| US4720339A (en) * | 1985-03-15 | 1988-01-19 | American Cyanamid Company | Flotation beneficiation process for non-sulfide minerals |
| US4744893A (en) * | 1985-08-28 | 1988-05-17 | American Cyanamid Company | Polymeric sulfide mineral depressants |
-
1996
- 1996-05-07 CA CA002222871A patent/CA2222871A1/en not_active Abandoned
- 1996-05-07 EP EP96915590A patent/EP0830209B1/en not_active Expired - Lifetime
- 1996-05-07 CN CN96194427A patent/CN1186455A/en active Pending
- 1996-05-07 AU AU57332/96A patent/AU693029B2/en not_active Ceased
- 1996-05-07 WO PCT/US1996/006481 patent/WO1996040439A1/en active IP Right Grant
- 1996-05-07 PL PL96323918A patent/PL180626B1/en unknown
- 1996-05-07 AT AT96915590T patent/ATE183115T1/en not_active IP Right Cessation
- 1996-05-07 DE DE69603727T patent/DE69603727D1/en not_active Expired - Lifetime
- 1996-05-07 RU RU98100227A patent/RU2140329C1/en active
- 1996-05-07 BR BR9609098A patent/BR9609098A/en active Search and Examination
-
1997
- 1997-12-05 OA OA70154A patent/OA10640A/en unknown
- 1997-12-11 BG BG102113A patent/BG62124B1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844110A (en) * | 2010-06-11 | 2010-09-29 | 中国地质科学院郑州矿产综合利用研究所 | Sulfide ore flotation layered silicate mineral inhibitor and preparation method thereof |
| CN105537004A (en) * | 2015-12-15 | 2016-05-04 | 云南省化工研究院 | Preparing method for phosphogypsum flotation collector |
| CN105537004B (en) * | 2015-12-15 | 2018-04-06 | 云南省化工研究院 | A kind of method prepared by ardealite flotation collector |
Also Published As
| Publication number | Publication date |
|---|---|
| OA10640A (en) | 2002-09-16 |
| BG102113A (en) | 1998-06-30 |
| PL180626B1 (en) | 2001-03-30 |
| ATE183115T1 (en) | 1999-08-15 |
| WO1996040439A1 (en) | 1996-12-19 |
| DE69603727D1 (en) | 1999-09-16 |
| EP0830209A1 (en) | 1998-03-25 |
| AU5733296A (en) | 1996-12-30 |
| CA2222871A1 (en) | 1996-12-19 |
| AU693029B2 (en) | 1998-06-18 |
| BG62124B1 (en) | 1999-03-31 |
| PL323918A1 (en) | 1998-04-27 |
| RU2140329C1 (en) | 1999-10-27 |
| EP0830209B1 (en) | 1999-08-11 |
| BR9609098A (en) | 1999-02-02 |
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