CN105834008A - Preparation method of inhibitors for arsenic-containing sulfide minerals in copper tailings - Google Patents
Preparation method of inhibitors for arsenic-containing sulfide minerals in copper tailings Download PDFInfo
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- CN105834008A CN105834008A CN201610399940.1A CN201610399940A CN105834008A CN 105834008 A CN105834008 A CN 105834008A CN 201610399940 A CN201610399940 A CN 201610399940A CN 105834008 A CN105834008 A CN 105834008A
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- mispickel
- inhibitor
- arsenopyrite
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 33
- 239000010949 copper Substances 0.000 title claims abstract description 33
- 239000003112 inhibitor Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 229910052785 arsenic Inorganic materials 0.000 title abstract description 16
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title abstract description 15
- 229910052569 sulfide mineral Inorganic materials 0.000 title abstract description 4
- MJLGNAGLHAQFHV-UHFFFAOYSA-N arsenopyrite Chemical compound [S-2].[Fe+3].[As-] MJLGNAGLHAQFHV-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 230000003647 oxidation Effects 0.000 claims abstract description 9
- 238000002425 crystallisation Methods 0.000 claims abstract description 4
- 230000008025 crystallization Effects 0.000 claims abstract description 4
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims description 30
- 229910052683 pyrite Inorganic materials 0.000 claims description 28
- 239000011028 pyrite Substances 0.000 claims description 28
- 239000000243 solution Substances 0.000 claims description 22
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 6
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 claims description 5
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 claims description 5
- 239000002509 fulvic acid Substances 0.000 claims description 5
- 229940095100 fulvic acid Drugs 0.000 claims description 5
- 230000002401 inhibitory effect Effects 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- UGWULZWUXSCWPX-UHFFFAOYSA-N 2-sulfanylideneimidazolidin-4-one Chemical compound O=C1CNC(=S)N1 UGWULZWUXSCWPX-UHFFFAOYSA-N 0.000 claims description 3
- AOPRFYAPABFRPU-UHFFFAOYSA-N amino(imino)methanesulfonic acid Chemical compound NC(=N)S(O)(=O)=O AOPRFYAPABFRPU-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000005764 inhibitory process Effects 0.000 abstract description 5
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 abstract description 2
- 229940000489 arsenate Drugs 0.000 abstract description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea group Chemical group NC(=S)N UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052964 arsenopyrite Inorganic materials 0.000 abstract 7
- 230000005518 electrochemistry Effects 0.000 abstract 2
- 239000000047 product Substances 0.000 abstract 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000000536 complexating effect Effects 0.000 abstract 1
- 150000002484 inorganic compounds Chemical class 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 125000004151 quinonyl group Chemical group 0.000 abstract 1
- 238000005188 flotation Methods 0.000 description 11
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- 235000010755 mineral Nutrition 0.000 description 7
- 230000001590 oxidative effect Effects 0.000 description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 239000007800 oxidant agent Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000001629 suppression Effects 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- CUGMJFZCCDSABL-UHFFFAOYSA-N arsenic(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[As+3].[As+3] CUGMJFZCCDSABL-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000004021 humic acid Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052970 tennantite Inorganic materials 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000010757 Reduction Activity Effects 0.000 description 1
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229910052948 bornite Inorganic materials 0.000 description 1
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000021321 essential mineral Nutrition 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 229910052960 marcasite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 239000011686 zinc sulphate Substances 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
- B03D1/018—Mixtures of inorganic and organic 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
- 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
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a preparation method of inhibitors for arsenic-containing sulfide minerals in copper tailings. According to the method, for the characteristic that the surfaces of arsenopyrite and pyrites in the copper tailings have been oxidized, the inhibitor with the electrochemistry reducibility is used for eliminating oxidation products on the surfaces of the arsenopyrite and the pyrites in the copper tailings; and meanwhile, by adding the inhibitor which can generate the selective inhibition effect on the arsenopyrite, the surfaces of the arsenopyrite are oxidized to generate precipitate, and therefore separation of the arsenopyrite and the pyrites in the copper tailings is achieved. The method includes the following steps that a solution A, a solution B and a solution C are prepared, and concentration and crystallization are conducted. According to the preparation method, through the inorganic and organic compound reaction, a product with the complicated complexing structure and the electrochemistry reducibility is formed, and arsenate on the surfaces of the arsenopyrite and sulfite on the surfaces of the pyrites can be removed; and meanwhile, by means of the reducibility and coordination capacity of thiourea groups and benzene ring quinone groups, inhibition on the surfaces of the arsenopyrite is achieved.
Description
Technical field
The invention belongs to chemical mineral processing technical field, be specifically related to the preparation method of As-containing sulphide ore thing inhibitor in a kind of copper tailing, be suitable for the Flotation separation of arsenic and sulfur of nominal group process.
Background technology
China has abundant copper resource, owing to copper content in Ore is relatively low, substantial amounts of mine tailing can be produced in copper ore dressing process, oxidation reaction is there is in the arsenic-containing ores in mine tailing under the effect of oxygen and water body, thus cause arsenic to enter water body and produce arsenic pollution problem, people's life is worked the mischief safely, therefore the arsenic mineral in copper tailing being carried out reclaims tool and is of great significance.
Arsenic-containing ores in copper tailing is generally mispickel, tennantite and pyrite, and wherein mispickel is the highest containing arsenic, is also most difficult to reclaim in mine tailing.When mispickel and pyrite, not only affect the quality of iron concentrate product, also affect follow-up Metallurgical processing process simultaneously, and bring serious problem of environmental pollution.During copper ore floatation, add substantial amounts of Calx, mispickel and pyrite are produced strong inhibitory action, causes the mispickel in mine tailing and pyrite floatability poor, be difficult to separate, need to develop efficient floating agent to realize mispickel and pyritous separation.
Mispickel belongs to pyrite class mineral, mispickel crystal also exists [FeS] and [AsS] two kinds of chemical bonds, and [Fes] key is similar to [FeS] key of pyrite surface structure, the Fe-S key on its surface also can forced breakage when mispickel Crystal Breakup, its effect is similar to the bond fission of pyrite surface Fe-S, owing to pyrite and two kinds of mineral surfaces of mispickel are qualitative close, result in mispickel and pyrite is difficult to separate.For many years, researcher broadly studied mispickel and pyritous FLOTATION SEPARATION both at home and abroad, it is proposed that multiple method and technology, and wherein most methods is based on the oxidation or surface hydrophilic of mispickel, strengthen the oxidizing process on mispickel surface, thus realize mispickel and pyritous FLOTATION SEPARATION.Slurry temperature is risen to more than 40 DEG C by floatation of heating, and mispickel is suppressed because of oxidation, and pyrite continues to keep floating thus realizes pozzuolite and separate.This kind of method requires higher slurry temperature, and the time of sizing mixing is the longest, and operating cost is high, and hot conditions makes working environment the most severe.Oxidant method is by being filled with oxygen in ore pulp or adding oxidant and aoxidize mispickel and make it show hydrophilic being suppressed, conventional oxidant has hydrogen peroxide, potassium permanganate, bleaching powder, weight complex acid potassium, Ammonium persulfate. etc., use oxidant method simple and convenient, add oxidant and can dramatically increase the floatability difference of mispickel and other sulphide ore, make the floatability of mispickel decline.But simultaneously also act on other mineral and floating agent due to oxidant, so that floatation process is difficult to operation and controls, the most industrial the most successfully use.Use external electric field to control pulp potential under high oxidation potential, adjust ore pulp and add sodium carbonate and adjust agent, add collecting agent and foaming agent, flotation pyrite, suppression mispickel, mispickel and pyritous separation can be realized, but due to external control non-uniform electric, industry is amplified and is difficult to produce a desired effect, and this technology is also in laboratory stage at present.Arsenic removal in high-Arsen gold ore flotation, adds Calx in ore pulp together with ammonium salt, and pyrite is because being protected from suppression by ammonium salt, and mispickel is then suppressed by Calx and loses floatability, it is achieved pyrite separates with mispickel.By ZnSO4And Na2CO3Configure the colloid zinc carbonate made by a certain percentage and mispickel is had stronger inhibitory action, use MgCl2-NH4Cl-NH4OH intermixture does inhibitor, mispickel can be suppressed when pH is 7～9, but pyrite is also had certain inhibition, the mispickel that activated by copper ions is crossed and pyrite, Calx and humic acid is used to be capable of the suppression of mispickel, but the separating effect of the method is relevant with activated by copper ions concentration, and when humic acid concentration is higher, pyrite is also had strong inhibition effect.Organic inhibitor is used to carry out Selective depression mispickel, flotation pyrite is the method that Recent study is more, but owing to the two surface nature is close, major part organic inhibitor industrially there is no application due to weak effect or the problem such as expensive, and current the method also needs to design and develop out more efficient and cheap organic inhibitor.Above method is only effective to indivedual Ores, not strong to ore properties adaptability, and mispickel and the fluctuation of pyrite Separation Indexes are bigger.Copper ore floatation the most all adds Calx and sizes mixing and suppress pyrite and mispickel, therefore the mispickel in mine tailing and pyrite surface are by Calx strong inhibition, mispickel and pyrite surface character become more complicated, using traditional mispickel and flotation of pyrite separation method to be difficult to effective, the character and the feature that are required for copper tailing develop recovery mispickel new technology and method.
Summary of the invention
Reclaiming difficult problem to solve mispickel in copper tailing, for the character of mispickel in copper tailing, the present invention provides the preparation method of As-containing sulphide ore thing inhibitor in a kind of copper tailing.Described method uses has the inhibitor of electrochemical reduction to eliminate mispickel and the oxidation product of pyrite surface in copper tailing, adds the inhibitor that mispickel can produce selective inhibitory simultaneously, thus realizes mispickel in copper tailing and separate with pyritous.The inhibitor prepared by described method can overcome the problems such as copper tailing basicity height, surface oxidation and mineral interfere.
For realizing above-mentioned target, the present invention by the following technical solutions:
The preparation method of As-containing sulphide ore thing inhibitor in a kind of copper tailing, described method is for the most oxidized feature of the mispickel in copper tailing and pyrite surface, use and there is the inhibitor of electrochemical reduction to eliminate mispickel and the oxidation product of pyrite surface in copper tailing, simultaneously by adding the inhibitor that mispickel can be produced selective inhibitory, mispickel surface is carried out oxidation and produces precipitation, thus realize mispickel in copper tailing and separate with pyritous.
In a kind of copper tailing, the preparation method of As-containing sulphide ore thing inhibitor, comprises the steps:
(1) solution A is prepared: weigh aminoiminomethanesulfonic acid, 2-thio-hydantoin and sodium hydroxide according to 30:10:3 weight ratio, soluble in water, stir 10 minutes, be configured to the solution A that weight concentration is 20%；
(2) prepare solution B: weigh fulvic acid, hydrogen peroxide and water according to the weight ratio of 70:10:160, by soluble in water to fulvic acid and hydrogen peroxide, react 10 minutes, add the aqueous sodium carbonate of 5%, be configured to the solution B that weight concentration is 20%；
(3) preparing solution C: solution A and solution B are mixed according to the part by weight of 1:1, react 30 minutes, form uniform and stable yellowish-brown aqueous solution, the Cortex Pini tannic extract adding 5% according to the weight ratio of 3:1 obtains mixed solution C；
(4) condensing crystallizing: after above-mentioned mixed solution C is concentrated, crystallization, form pale red powder product.
Advantages of the present invention is reacted by inorganic and organic compounding with having the beneficial effect that, formed and there is complicated chelation structure and there is the product of electrochemical reduction activity, the arsenate on mispickel surface and the sulphite of pyrite surface can be removed, utilize thiourea group and the reproducibility of phenyl ring quinonyl and coordination ability, it is achieved the suppression on mispickel surface simultaneously.
Detailed description of the invention
Embodiment
The preparation method of As-containing sulphide ore thing inhibitor of the present invention, comprises the steps:
(1) prepare solution A: weigh aminoiminomethanesulfonic acid 30 grams, 2-thio-hydantoin 10 grams and sodium hydroxide 3 grams according to 30:10:3 weight ratio, be dissolved in 172 grams of water, stir 10 minutes, be configured to the solution A that weight concentration is 20%；
(2) prepare solution B: claim fulvic acid 70 grams and hydrogen peroxide 10 grams according to 70:10 weight ratio, be dissolved in 200 grams of water, react 10 minutes, add the aqueous sodium carbonate 40 grams of 5%, be configured to the solution B that weight concentration is 20%；
(3) solution C is prepared: taking solution A and each 100 grams of solution B mixes, react 30 minutes, form uniform and stable yellowish-brown aqueous solution, the Cortex Pini tannic extract 30 grams adding 5% obtains mixed solution C；
(4) condensing crystallizing: after above-mentioned mixed solution C is concentrated, crystallization, form pale red powder product.
Application example
1, raw mineral materials:
Sichuan copper mining tailing, ore properties: copper content is 0.12%, iron content is 24%, and arsenic content is 3.8%, and sulfur content is 18%.Essential mineral in mine tailing is bornite, tennantite, mispickel, pyrite, marcasite, dolomite, calcite, kaolinite, quartz and a small amount of bloodstone etc..Mine tailing fineness-200 mesh content 84%, slurry pH 12.
2, medicament preparation and operating condition: use oxalic acid activation mine tailing sulfide mineral 10 minutes, add copper sulfate 200g/t to react 5 minutes, add butyl xanthate 300g/t flotation, obtain the rough concentrate Han arsenic, it is subsequently adding the arsenic sulfide suppressant 500g/t prepared by the method for the invention, flotation is carried out after sizing mixing 5 minutes, selected two add arsenic sulfide suppressant 200g/t of the present invention, scan two additions arsenic of the present invention sulfide suppressant 100g/t, through one roughing, recleaning and secondary are scanned, in flotation froth concentrate, arsenic content is 0.38%, in mine tailing, arsenic content reaches 19.65%, achieve the FLOTATION SEPARATION of arsenic and other sulfide mineral.
It is last that it is noted that obviously above-described embodiment is only for clearly demonstrating example of the present invention, and not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or variation still in protection scope of the present invention among.
Claims (2)
1. the preparation method of As-containing sulphide ore thing inhibitor in a copper tailing, it is characterized in that: described method is for the most oxidized feature of the mispickel in copper tailing and pyrite surface, use and there is the inhibitor of electrochemical reduction to eliminate mispickel and the oxidation product of pyrite surface in copper tailing, simultaneously by adding the inhibitor that mispickel can be produced selective inhibitory, mispickel surface is carried out oxidation and produces precipitation, thus realize mispickel in copper tailing and separate with pyritous.
The preparation method of As-containing sulphide ore thing inhibitor in a kind of copper tailing the most as claimed in claim 1, it is characterised in that described method comprises the steps:
(1) solution A is prepared: weigh aminoiminomethanesulfonic acid, 2-thio-hydantoin and sodium hydroxide according to 30:10:3 weight ratio, soluble in water, stir 10 minutes, be configured to the solution A that weight concentration is 20%；
(2) prepare solution B: weigh fulvic acid, hydrogen peroxide and water according to the weight ratio of 70:10:160, by soluble in water to fulvic acid and hydrogen peroxide, react 10 minutes, add the aqueous sodium carbonate of 5%, be configured to the solution B that weight concentration is 20%；
(3) preparing solution C: solution A and solution B are mixed according to the part by weight of 1:1, react 30 minutes, form uniform and stable yellowish-brown aqueous solution, the Cortex Pini tannic extract adding 5% according to the weight ratio of 3:1 obtains mixed solution C；
(4) condensing crystallizing: after above-mentioned mixed solution C is concentrated, crystallization, form pale red powder product.
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| CN201610399940.1A CN105834008A (en) | 2016-06-08 | 2016-06-08 | Preparation method of inhibitors for arsenic-containing sulfide minerals in copper tailings |
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| CN201610399940.1A CN105834008A (en) | 2016-06-08 | 2016-06-08 | Preparation method of inhibitors for arsenic-containing sulfide minerals in copper tailings |
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| CN105834008A true CN105834008A (en) | 2016-08-10 |
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| CN201610399940.1A Pending CN105834008A (en) | 2016-06-08 | 2016-06-08 | Preparation method of inhibitors for arsenic-containing sulfide minerals in copper tailings |
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| CN119346301A (en) * | 2024-11-15 | 2025-01-24 | 昆明理工大学 | A flotation separation method for galena and chalcopyrite |
| CN119406580A (en) * | 2024-11-25 | 2025-02-11 | 昆明理工大学 | A flotation separation inhibitor for mixed concentrate of galena and chalcopyrite and a flotation separation method thereof |
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| CN108620240A (en) * | 2018-05-22 | 2018-10-09 | 中南大学 | A kind of sulfide mineral inhibitor of bismuth and its application |
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| CN119346301A (en) * | 2024-11-15 | 2025-01-24 | 昆明理工大学 | A flotation separation method for galena and chalcopyrite |
| CN119346301B (en) * | 2024-11-15 | 2025-10-03 | 昆明理工大学 | A flotation separation method for galena and chalcopyrite |
| CN119406580A (en) * | 2024-11-25 | 2025-02-11 | 昆明理工大学 | A flotation separation inhibitor for mixed concentrate of galena and chalcopyrite and a flotation separation method thereof |
| CN119406580B (en) * | 2024-11-25 | 2025-10-17 | 昆明理工大学 | Floatation separation inhibitor for galena and chalcopyrite bulk concentrate and floatation separation method thereof |
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