CN114367376A - Method for recovering copper-molybdenum minerals through flotation - Google Patents
Method for recovering copper-molybdenum minerals through flotation Download PDFInfo
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- CN114367376A CN114367376A CN202210023387.7A CN202210023387A CN114367376A CN 114367376 A CN114367376 A CN 114367376A CN 202210023387 A CN202210023387 A CN 202210023387A CN 114367376 A CN114367376 A CN 114367376A
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- Prior art keywords
- molybdenum
- flotation
- copper
- concentrate
- talc
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- 238000005188 flotation Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 34
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 29
- 239000011707 mineral Substances 0.000 title claims abstract description 29
- WUUZKBJEUBFVMV-UHFFFAOYSA-N copper molybdenum Chemical compound [Cu].[Mo] WUUZKBJEUBFVMV-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000012141 concentrate Substances 0.000 claims abstract description 44
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 31
- 239000011733 molybdenum Substances 0.000 claims abstract description 31
- 239000003112 inhibitor Substances 0.000 claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 21
- 239000006260 foam Substances 0.000 claims abstract description 21
- 239000004088 foaming agent Substances 0.000 claims abstract description 13
- 238000000227 grinding Methods 0.000 claims abstract description 12
- 230000003213 activating effect Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 235000010755 mineral Nutrition 0.000 claims description 27
- 235000019353 potassium silicate Nutrition 0.000 claims description 14
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 14
- WVYWICLMDOOCFB-UHFFFAOYSA-N 4-methyl-2-pentanol Chemical compound CC(C)CC(C)O WVYWICLMDOOCFB-UHFFFAOYSA-N 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 6
- 239000012991 xanthate Substances 0.000 claims description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 5
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 5
- 150000004676 glycans Chemical class 0.000 claims description 5
- 229920001282 polysaccharide Polymers 0.000 claims description 5
- 239000005017 polysaccharide Substances 0.000 claims description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 4
- 239000002283 diesel fuel Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 4
- -1 sulfur nitrogen nitrile ester Chemical class 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 229920000591 gum Polymers 0.000 claims description 3
- 150000003558 thiocarbamic acid derivatives Chemical class 0.000 claims description 3
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 2
- 229920002307 Dextran Polymers 0.000 claims description 2
- 239000004375 Dextrin Substances 0.000 claims description 2
- 229920001353 Dextrin Polymers 0.000 claims description 2
- 229920002148 Gellan gum Polymers 0.000 claims description 2
- 229920000161 Locust bean gum Polymers 0.000 claims description 2
- 239000004373 Pullulan Substances 0.000 claims description 2
- 229920001218 Pullulan Polymers 0.000 claims description 2
- 244000275012 Sesbania cannabina Species 0.000 claims description 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 2
- 235000001484 Trigonella foenum graecum Nutrition 0.000 claims description 2
- 244000250129 Trigonella foenum graecum Species 0.000 claims description 2
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- 235000019270 ammonium chloride Nutrition 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 2
- 235000010418 carrageenan Nutrition 0.000 claims description 2
- 239000000679 carrageenan Substances 0.000 claims description 2
- 229920001525 carrageenan Polymers 0.000 claims description 2
- 229940113118 carrageenan Drugs 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 235000019425 dextrin Nutrition 0.000 claims description 2
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 2
- 239000011790 ferrous sulphate Substances 0.000 claims description 2
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 2
- 235000010492 gellan gum Nutrition 0.000 claims description 2
- 239000000216 gellan gum Substances 0.000 claims description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 2
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 2
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 2
- 239000003350 kerosene Substances 0.000 claims description 2
- RLJMLMKIBZAXJO-UHFFFAOYSA-N lead nitrate Chemical compound [O-][N+](=O)O[Pb]O[N+]([O-])=O RLJMLMKIBZAXJO-UHFFFAOYSA-N 0.000 claims description 2
- 239000004571 lime Substances 0.000 claims description 2
- 235000010420 locust bean gum Nutrition 0.000 claims description 2
- 239000000711 locust bean gum Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 235000019423 pullulan Nutrition 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- AWAJFEHOZQSMMS-UHFFFAOYSA-M sodium;carbamothioate Chemical compound [Na+].NC([O-])=S AWAJFEHOZQSMMS-UHFFFAOYSA-M 0.000 claims description 2
- 229940116411 terpineol Drugs 0.000 claims description 2
- 150000003544 thiamines Chemical class 0.000 claims description 2
- 235000001019 trigonella foenum-graecum Nutrition 0.000 claims description 2
- 229920001285 xanthan gum Polymers 0.000 claims description 2
- 239000000230 xanthan gum Substances 0.000 claims description 2
- 235000010493 xanthan gum Nutrition 0.000 claims description 2
- 229940082509 xanthan gum Drugs 0.000 claims description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 2
- 229960001763 zinc sulfate Drugs 0.000 claims description 2
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 2
- ZFTFOHBYVDOAMH-XNOIKFDKSA-N (2r,3s,4s,5r)-5-[[(2r,3s,4s,5r)-5-[[(2r,3s,4s,5r)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxymethyl]-3,4-dihydroxy-2-(hydroxymethyl)oxolan-2-yl]oxymethyl]-2-(hydroxymethyl)oxolane-2,3,4-triol Chemical class O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)OC[C@@H]1[C@@H](O)[C@H](O)[C@](CO)(OC[C@@H]2[C@H]([C@H](O)[C@@](O)(CO)O2)O)O1 ZFTFOHBYVDOAMH-XNOIKFDKSA-N 0.000 claims 1
- 239000004604 Blowing Agent Substances 0.000 claims 1
- 229920002670 Fructan Polymers 0.000 claims 1
- 229920002907 Guar gum Polymers 0.000 claims 1
- 239000012190 activator Substances 0.000 claims 1
- 239000000665 guar gum Substances 0.000 claims 1
- 235000010417 guar gum Nutrition 0.000 claims 1
- 229960002154 guar gum Drugs 0.000 claims 1
- 239000003002 pH adjusting agent Substances 0.000 claims 1
- 150000003585 thioureas Chemical class 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 12
- 239000000454 talc Substances 0.000 description 67
- 229910052623 talc Inorganic materials 0.000 description 67
- 230000000052 comparative effect Effects 0.000 description 16
- 229910052569 sulfide mineral Inorganic materials 0.000 description 14
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 11
- 229910052961 molybdenite Inorganic materials 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- OIGPMFVSGDDYHS-UHFFFAOYSA-N copper sulfanylidenemolybdenum Chemical compound [S].[Cu].[Mo] OIGPMFVSGDDYHS-UHFFFAOYSA-N 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- JZRWCGZRTZMZEH-UHFFFAOYSA-N Thiamine Natural products CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N JZRWCGZRTZMZEH-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052976 metal sulfide Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229960003495 thiamine Drugs 0.000 description 2
- 235000019157 thiamine Nutrition 0.000 description 2
- 239000011721 thiamine Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 235000016954 Ribes hudsonianum Nutrition 0.000 description 1
- 240000001890 Ribes hudsonianum Species 0.000 description 1
- 235000001466 Ribes nigrum Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052947 chalcocite Inorganic materials 0.000 description 1
- 229910052951 chalcopyrite Inorganic materials 0.000 description 1
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- AIHDCSAXVMAMJH-GFBKWZILSA-N levan Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)OC[C@@H]1[C@@H](O)[C@H](O)[C@](CO)(CO[C@@H]2[C@H]([C@H](O)[C@@](O)(CO)O2)O)O1 AIHDCSAXVMAMJH-GFBKWZILSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Images
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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Abstract
The invention provides a method for recovering copper and molybdenum minerals by flotation, which comprises the following steps: 1) grinding raw ore, adding a foaming agent, and performing pre-flotation to obtain a foam product and ore pulp; 2) adding a No. 1 inhibitor, an activating agent and a No. 1 collecting agent into the foam product respectively, and performing flotation to obtain No. 1 rough concentrate and tailings 1; 3) adding a pH regulator, a No. 2 inhibitor and a No. 2 collector into the ore pulp respectively, and performing flotation to obtain No. 2 rough concentrate and tailings 2, wherein the pH is regulated to 6.5-10.0; 4) and then, respectively/combining the No. 1 rough concentrate and the No. 2 rough concentrate for concentration to respectively obtain separate copper concentrate, molybdenum concentrate or copper-molybdenum mixed concentrate. The recovery rate of the copper ore of the invention reaches more than 75 percent and the recovery rate of the molybdenum ore reaches more than 60 percent.
Description
Technical Field
The invention belongs to the technical field of mineral processing engineering, and particularly relates to a method for recovering copper and molybdenum minerals through flotation.
Background
Talc is an easily floating and easily argillized magnesium-containing silicate mineral, and is often associated with nonferrous metal sulfide minerals such as copper, molybdenum, nickel and the like. The crystal structure of the talc is an sandwich structure consisting of 2 silicon oxide tetrahedral layers and 1 magnesium oxide octahedral layer, weak molecular bonds are formed among structural unit layers, the molecular bonds among the layers are easy to break during dissociation, the surface hydration effect is weak, the hydrophobicity is good, and the natural floatability is good. The influence of talc on sulphide mineral flotation has two main aspects: firstly, talc has good natural floatability and is easy to enter concentrate along with flotation foam, so that the grade of sulfide mineral flotation concentrate is difficult to improve; on the other hand, talc enters flotation foam, so that the viscosity of the flotation foam is increased, and the normal floating and separation of sulfide minerals are influenced.
At present, the method for separating talc and sulfide minerals in domestic and international research and practical production mainly comprises 3 methods: (1) the talc in sulfide ore is floated through acid leaching after the talc enters into concentrate. The method is suitable for ores with low talc content, and the talc is always circulated in the whole treatment process, and finally the talc has a deteriorating effect on flotation. (2) The method is mainly suitable for ores with high talc content, sulfide minerals and talc which are not in concomitant relation, and useful minerals and talc which have obvious surface properties are different, and the prior removal inevitably causes partial metal loss. (3) The method directly inhibits the upward floating of the talc, reduces the floatability of the talc through an inhibitor, realizes the flotation separation of sulfide minerals and the talc, and has the main problem that polysaccharide inhibitors or inorganic inhibitors for inhibiting the talc often inhibit copper-molybdenum sulfide minerals, so that the flotation recovery rate of the copper-molybdenum sulfide minerals is low. Therefore, the development of new flotation techniques is of great interest for the recovery of copper molybdenum sulphide minerals from talc-containing ores.
Therefore, there is a need for a method for flotation recovery of copper molybdenum minerals with high recovery rate.
Disclosure of Invention
The invention provides a method for recovering copper and molybdenum minerals by flotation, and aims to solve the problems that talc is associated with nonferrous metal sulfide minerals such as copper, molybdenum and the like, and the recovery rate of the copper and molybdenum sulfide minerals recovered by the flotation method in the prior art is influenced by the talc and is low.
In order to achieve the above object, an embodiment of the present invention provides a method for recovering copper molybdenum minerals by flotation, the method including the steps of:
1) grinding raw ores, adding a foaming agent, and performing pre-flotation to obtain foam products and ore pulp, wherein the amount of the foaming agent is 10-50 g/t;
2) adding a No. 1 inhibitor, an activating agent and a No. 1 collecting agent into the foam product respectively, and performing flotation to obtain No. 1 rough concentrate and tailings 1, wherein the using amount of the No. 1 inhibitor is 100-1000 g/t, the using amount of the activating agent is 0-100 g/t, and the using amount of the No. 1 collecting agent is 20-300 g/t;
3) adding a pH regulator, a No. 2 inhibitor and a No. 2 collector into the ore pulp respectively, and performing flotation to obtain No. 2 rough concentrate and tailings 2, wherein the pH is regulated to 6.5-10.0, the total dosage of the No. 2 inhibitor is 500-3000 g/t, and the dosage of the No. 2 collector is 10-100 g/t;
4) and then, respectively/jointly concentrating the No. 1 rough concentrate and the No. 2 rough concentrate to obtain separate copper concentrate, molybdenum concentrate or copper-molybdenum mixed concentrate.
Further, the foaming agent is one or more of methyl isobutyl carbinol, butyl ether alcohol, terpineol, n-butanol or heteropolyol.
Further, the No. 1 inhibitor is one or more of polysaccharide and derivatives thereof, such as Guerban, carboxymethyl cellulose, modified cellulose inhibitor, dextrin, locust bean gum, fenugreek gum, sesbania gum, carrageenan, gellan gum, xanthan gum, levan, pullulan, dextran, etc.
Further, the activating agent is one or more of copper sulfate, ammonium chloride or lead nitrate.
Further, the No. 1 collecting agent is one or more of xanthates, thiocarbamates, blackcurrants, thiocarbamates, thioazelates, thiourea and xanthates.
Further, the pH regulator is one or more of lime, sodium carbonate, sodium hydroxide, sulfuric acid and hydrochloric acid.
Further, the No. 2 inhibitor is one or more of acidified water glass, salinized water glass and water glass.
Furthermore, the salinized water glass is a mixture of inorganic salt and water glass, and the inorganic salt is one or more of zinc sulfate, aluminum sulfate, ferric sulfate and ferrous sulfate.
Further, the collector No. 2 comprises a collector taking molybdenum recovery as a main purpose and a collector taking copper recovery as a main purpose.
Furthermore, the collecting agent mainly aiming at recovering molybdenum is neutral oil and an emulsified product thereof, and the neutral oil is one or more of diesel oil, kerosene and transformer oil; the collecting agent taking the recovered copper as the main purpose is one or more of xanthate, thiamine esters, black dye, sodium thiocarbamate, sulfur nitrogen nitrile ester and thiourea.
On the one hand, the surface wettability of the talc is different due to the fact that the talc has different alteration routes and isomorphism phenomena in the ore forming process, for example, magnesium atoms in the talc are often replaced by iron, calcium, nickel and the like to form iron talc, calcium talc, nickel talc and the like, and the surface properties of the talc have certain difference due to the fact that the content of associated minerals is called dolomite talc, magnesite talc, chlorite talc, carbonate talc and the like; on the other hand, the talc mineral crystal has a difference in hydrophobicity between the layer surface and the end surface in the crushing, grinding and dissociation processes, the layer surface usually has good natural hydrophobicity, and the end surface has certain hydrophilicity. Therefore, the invention divides the talc and the molybdenite into two parts with better natural floatability and poorer natural floatability from the aspect of mineral surface wettability, realizes the flotation separation of the talc, the copper sulfide mineral and the molybdenite by respectively adopting different medicament combinations aiming at the two parts of minerals, and respectively recovers the useful copper and molybdenum minerals. In summary, for copper-molybdenum ore and molybdenum ore containing talc, the invention firstly obtains a foam product containing a large amount of talc and ore pulp from which part of talc is removed by pre-flotation, and then realizes the recovery of copper-molybdenum ore from the talc foam product and the ore pulp from which talc is removed by respectively adjusting the surface properties of minerals through the compatibility of flotation reagents.
The scheme of the invention has the following beneficial effects:
1) according to the method provided by the scheme of the invention, the talc is divided into the part with better natural floatability and the part with poorer natural floatability through pre-flotation, and then selective regulation and control of surface properties are respectively carried out on the two parts of talc, copper sulfide minerals and molybdenite, so that inhibition of all types of talc in the same flotation pulp is effectively avoided. The inhibitor with strong inhibition capability and the collector with strong collection capability can be adopted for talc with good natural floatability, copper sulfide mineral and molybdenite, and the inhibitor with weak inhibition capability and good selectivity can be adopted for talc with poor natural floatability, copper sulfide mineral and molybdenite, so that the purposes of medicine preparation according to symptoms and precise regulation and control are achieved;
2) the recovery rate of the copper ore of the invention reaches more than 75 percent and the recovery rate of the molybdenum ore reaches more than 60 percent.
Drawings
FIG. 1 is a process flow diagram of a method for recovering copper and molybdenum minerals by flotation according to an embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Aiming at the existing problems, the invention provides a method for recovering copper and molybdenum minerals by flotation.
FIG. 1 is a process flow diagram of a method for recovering copper and molybdenum minerals by flotation according to an embodiment of the invention.
Example 1
The copper sulfide molybdenum ore containing a large amount of talc has a copper grade of 0.64% and a molybdenum grade of 0.022%, copper sulfide minerals in the raw ore mainly comprise chalcopyrite, chalcocite and copper blue, molybdenum minerals mainly comprise molybdenite, and the talc content in gangue minerals reaches 5.0% -9.0%.
1) After raw ore is ground, 50g/t of MIBC is added as a foaming agent, talc foam products are floated by pre-flotation, and then the talc foam products and ore pulp products in a tank are respectively treated.
2) Adding 700g/t CMC and 10g/t Pentaxanthate into the talc foam product to inhibit talc from floating copper sulfide minerals and molybdenite to obtain No. 1 rough concentrate;
3) and adding CaO into the ore pulp product in the pre-flotation tank to adjust the pH value of the ore pulp to 9.5-10.0, adding 50g/t of CMC and 1000g/t of acidified water glass for size mixing, adding 30g/t of thiamine ester collecting agent and 30g/t of combined foaming agent, and performing flotation to obtain No. 2 rough concentrate.
4) And combining the 2 kinds of rough concentrates, and then carrying out concentration, concentrate regrinding and recleaning to obtain the final copper-molybdenum bulk concentrate.
Comparative example 1
The flotation feeding property and the grinding fineness of the comparative example 1 are the same as those of the example 1,
after grinding raw ores, adding 50g/t of MIBC serving as a foaming agent, pre-floating to remove talc foam products, directly discarding the talc foam products (without inhibiting talc) after 1-2 times of concentration, and merging middlings after concentration into ore pulp in a tank after pre-floating to remove the talc. And (3) adopting the same medicament system and flow structure as those in the embodiment 1 to the ore pulp in the groove to obtain the final copper-molybdenum bulk concentrate.
Comparative example 2
The flotation feeding property and the grinding fineness of the comparative example 2 are the same as those of the example 1, talc is not removed in advance by flotation after raw ore grinding, CaO is directly added to adjust the pH value of ore pulp to 9.5-10.0, 750g/t of CMC and 100g/t of acidified water glass are added to adjust the pulp, 30g/t of thiamine ester collecting agent and 30g/t of combined foaming agent are added to obtain copper-molybdenum rough concentrate by flotation. The same chemical system and flow structure as those of the combined rough concentrates in example 1 were used for the copper-molybdenum rough concentrates to obtain the final copper-molybdenum bulk concentrates.
The beneficiation indicators of example 1, comparative example 1 and comparative example 2 are shown in table 1.
Table 1 mineral separation indexes of example 1, comparative example 1 and comparative example 2
Example 2
The molybdenum sulfide ore containing a large amount of talc has a raw ore molybdenum grade of 0.14-0.09%, molybdenum minerals in the raw ore mainly comprise molybdenite, and the talc content in gangue minerals is 9.0-20.0%.
1) After grinding raw ores, firstly adding 30g/t of MIBC serving as a foaming agent, pre-floating to float a talc foam product, and then respectively treating the talc foam product and an ore pulp product in a tank;
2) adding 600g/t polysaccharide gum derivative as a talc inhibitor into a talc foam product, adding 20g/t copper sulfate as an activating agent, adding 50g/t butyl xanthate as a molybdenite collecting agent (or directly adding 100g/t butyl xanthate as a collecting agent without adding copper sulfate activation), and performing flotation to obtain No. 1 molybdenum rough concentrate;
3) adding 1500g/t of acidified water glass as an inhibitor and 150g/t of diesel oil as a collecting agent into the ore pulp product in the tank after the pre-flotation, and performing flotation to obtain No. 2 molybdenum rough concentrate;
4) and combining the 2 kinds of molybdenum rough concentrates, and then grinding and recleaning the concentrates for 2-3 times to obtain the final molybdenum concentrate.
Comparative example 3
The flotation feeding property and the grinding fineness of the comparative example 3 are the same as those of the example 2, 30g/t of MIBC is added as a foaming agent after raw ore is ground, talc foam products are removed through pre-flotation, the talc foam products are directly discarded (talc is not inhibited) after being refined for 1-2 times, and middlings after being refined are merged into tank pulp after being removed through pre-flotation. And (3) adopting the same medicament system and flow structure as those in the embodiment 1 to the ore pulp in the groove to obtain the final molybdenum bulk concentrate.
Comparative example 4:
the flotation feeding property and the grinding fineness of the comparative example 4 are the same as those of the example 2, the raw ore is ground without removing talc in advance, 600g/t polysaccharide gum derivative and 1500g/t acidified water glass are directly added to be used as talc inhibitor, then 150g/t diesel oil is added to be used as collector, 30g/t MIBC is added to be used as foaming agent, and the molybdenum rough concentrate is obtained through flotation. The molybdenum rough concentrate is subjected to the same chemical system and flow structure as those of the rough concentrate in the embodiment 2, and the final molybdenum bulk concentrate is obtained.
The beneficiation indicators of example 2, comparative example 3 and comparative example 4 are shown in table 2.
Table 2 mineral separation indexes of example 2, comparative example 3 and comparative example 4
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method for recovering copper molybdenum minerals by flotation, which is characterized by comprising the following steps:
1) grinding raw ores, adding a foaming agent, and performing pre-flotation to obtain foam products and ore pulp, wherein the amount of the foaming agent is 10-50 g/t;
2) adding a No. 1 inhibitor, an activating agent and a No. 1 collecting agent into the foam product respectively, and performing flotation to obtain No. 1 rough concentrate and tailings 1, wherein the using amount of the No. 1 inhibitor is 100-1000 g/t, the using amount of the activating agent is 0-100 g/t, and the using amount of the No. 1 collecting agent is 20-300 g/t;
3) adding a pH regulator, a No. 2 inhibitor and a No. 2 collector into the ore pulp respectively, and performing flotation to obtain No. 2 rough concentrate and tailings 2, wherein the pH is regulated to 6.5-10.0, the total dosage of the No. 2 inhibitor is 500-3000 g/t, and the dosage of the No. 2 collector is 10-100 g/t;
4) and then, respectively/jointly concentrating the No. 1 rough concentrate and the No. 2 rough concentrate to obtain separate copper concentrate, molybdenum concentrate or copper-molybdenum mixed concentrate.
2. The process of claim 1, wherein the blowing agent is one or more of methyl isobutyl carbinol, butyl ether alcohol, terpineol oil, n-butanol, or a heteropolyol.
3. The method of claim 1, wherein the inhibitor No. 1 is one or more of a polysaccharide selected from the group consisting of guar gum, carboxymethyl cellulose, modified cellulose inhibitors, dextrin, locust bean gum, fenugreek gum, sesbania gum, carrageenan, gellan gum, xanthan gum, fructans, pullulan, dextran, and derivatives thereof.
4. The method of claim 1, wherein the activator is one or more of copper sulfate, ammonium chloride, or lead nitrate.
5. The method of claim 1 wherein the collector No. 1 is one or more of xanthates, thiocarbamates, thioazelates, thioureas, or xanthates.
6. The method of claim 1, wherein the pH adjusting agent is one or more of lime, sodium carbonate, sodium hydroxide, sulfuric acid, hydrochloric acid.
7. The method of claim 1, wherein the inhibitor No. 2 is one or more of acidified water glass, salted water glass, and water glass.
8. The method of claim 7, wherein the salted water glass is a mixture of inorganic salts and water glass, and the inorganic salts are one or more of zinc sulfate, aluminum sulfate, ferric sulfate and ferrous sulfate.
9. The method according to claim 1, wherein the collector No. 2 comprises a collector with a primary purpose of recovering molybdenum and a collector with a primary purpose of recovering copper.
10. The method according to claim 9, wherein the collector mainly aiming at recovering molybdenum is neutral oil and emulsified products thereof, and the neutral oil is one or more of diesel oil, kerosene and transformer oil; the collecting agent taking the recovered copper as the main purpose is one or more of xanthate, thiamine esters, black dye, sodium thiocarbamate, sulfur nitrogen nitrile ester and thiourea.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115254441A (en) * | 2022-08-09 | 2022-11-01 | 东北大学 | Application of low-temperature inhibitor pullulan in iron ore reverse flotation and application method |
| CN115254441B (en) * | 2022-08-09 | 2024-04-26 | 东北大学 | Application of low-temperature inhibitor pullulan in iron ore reverse flotation and application method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874484A (en) * | 2015-04-28 | 2015-09-02 | 中国地质科学院郑州矿产综合利用研究所 | Method for reducing content of magnesium oxide in concentrate in copper-nickel sulfide ore flotation |
| CN105214850A (en) * | 2015-11-04 | 2016-01-06 | 江西理工大学 | A kind of talcose mineral separation method for copper nickel sulfide ore |
| CN109201320A (en) * | 2018-08-23 | 2019-01-15 | 北京矿冶科技集团有限公司 | A kind of beneficiation method of the cobalt ore of copper containing easy-floating gangue |
| CN110653073A (en) * | 2019-08-19 | 2020-01-07 | 西北矿冶研究院 | Gangue inhibitor and beneficiation method of copper sulfide ore containing pumice mineral |
| CN111330740A (en) * | 2020-03-05 | 2020-06-26 | 中南大学 | Method for improving flotation separation efficiency of magnesium-containing layered silicate minerals and copper sulfide minerals |
| CN111451003A (en) * | 2020-03-05 | 2020-07-28 | 铜陵有色金属集团股份有限公司 | Beneficiation method for copper-containing talc-serpentine ore easy to argillize and float |
| CN112495590A (en) * | 2021-01-06 | 2021-03-16 | 昆明冶金研究院有限公司 | Magnesium-containing silicate mineral inhibitor and application thereof |
-
2022
- 2022-01-10 CN CN202210023387.7A patent/CN114367376A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874484A (en) * | 2015-04-28 | 2015-09-02 | 中国地质科学院郑州矿产综合利用研究所 | Method for reducing content of magnesium oxide in concentrate in copper-nickel sulfide ore flotation |
| CN105214850A (en) * | 2015-11-04 | 2016-01-06 | 江西理工大学 | A kind of talcose mineral separation method for copper nickel sulfide ore |
| CN109201320A (en) * | 2018-08-23 | 2019-01-15 | 北京矿冶科技集团有限公司 | A kind of beneficiation method of the cobalt ore of copper containing easy-floating gangue |
| CN110653073A (en) * | 2019-08-19 | 2020-01-07 | 西北矿冶研究院 | Gangue inhibitor and beneficiation method of copper sulfide ore containing pumice mineral |
| CN111330740A (en) * | 2020-03-05 | 2020-06-26 | 中南大学 | Method for improving flotation separation efficiency of magnesium-containing layered silicate minerals and copper sulfide minerals |
| CN111451003A (en) * | 2020-03-05 | 2020-07-28 | 铜陵有色金属集团股份有限公司 | Beneficiation method for copper-containing talc-serpentine ore easy to argillize and float |
| CN112495590A (en) * | 2021-01-06 | 2021-03-16 | 昆明冶金研究院有限公司 | Magnesium-containing silicate mineral inhibitor and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 龙涛: "《硫化铜镍矿浮选中镁硅酸盐矿物强化分散同步抑制的理论及技术》", 30 September 2019, 北京：冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115254441A (en) * | 2022-08-09 | 2022-11-01 | 东北大学 | Application of low-temperature inhibitor pullulan in iron ore reverse flotation and application method |
| CN115254441B (en) * | 2022-08-09 | 2024-04-26 | 东北大学 | Application of low-temperature inhibitor pullulan in iron ore reverse flotation and application method |
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