CN113262881A - Zinc-selecting agent composition for lead-zinc sulfide ore and ore-selecting method for separating zinc and sulfur - Google Patents
Zinc-selecting agent composition for lead-zinc sulfide ore and ore-selecting method for separating zinc and sulfur Download PDFInfo
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- CN113262881A CN113262881A CN202011160986.0A CN202011160986A CN113262881A CN 113262881 A CN113262881 A CN 113262881A CN 202011160986 A CN202011160986 A CN 202011160986A CN 113262881 A CN113262881 A CN 113262881A
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- tailings
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 239000011701 zinc Substances 0.000 title claims abstract description 112
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 112
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000011593 sulfur Substances 0.000 title claims abstract description 78
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 78
- 239000000203 mixture Substances 0.000 title claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 24
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000005083 Zinc sulfide Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910052984 zinc sulfide Inorganic materials 0.000 title claims abstract description 22
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 30
- 238000000926 separation method Methods 0.000 claims abstract description 24
- AEOCXXJPGCBFJA-UHFFFAOYSA-N ethionamide Chemical compound CCC1=CC(C(N)=S)=CC=N1 AEOCXXJPGCBFJA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229960002001 ethionamide Drugs 0.000 claims abstract description 20
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims abstract description 15
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims abstract description 15
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract description 15
- 229910000365 copper sulfate Inorganic materials 0.000 claims abstract description 14
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 14
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000002000 scavenging effect Effects 0.000 claims description 86
- 238000005188 flotation Methods 0.000 claims description 73
- 239000012141 concentrate Substances 0.000 claims description 43
- 238000003756 stirring Methods 0.000 claims description 15
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 11
- 239000012991 xanthate Substances 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000011085 pressure filtration Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 4
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 claims 1
- 239000002516 radical scavenger Substances 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 12
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 5
- 230000007935 neutral effect Effects 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 abstract description 4
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 229910052683 pyrite Inorganic materials 0.000 description 6
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 6
- 239000011028 pyrite Substances 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910052949 galena Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052950 sphalerite Inorganic materials 0.000 description 1
Images
Classifications
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- 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
- B03D1/002—Inorganic 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
-
- 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
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- 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
-
- 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
- B03D1/012—Organic compounds containing sulfur
-
- 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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
Abstract
The invention discloses a zinc-selecting reagent composition for lead-zinc sulfide ores and a zinc-sulfur separation ore-dressing method, wherein the zinc-selecting reagent composition for lead-zinc sulfide ores is used for being added into lead-selecting tailings and comprises the following reagents: 200 portions of sodium sulfite, 200 portions of sodium bisulfite combined agent, 600 portions of copper sulfate and 10 to 40 portions of ethionamide. The invention adopts the new medicament combination to realize the process of preferentially selecting zinc and then selecting sulfur under the condition of natural pH value of ore pulp, the beneficiation wastewater is neutral, the wastewater treatment cost is reduced, and the environmental protection is facilitated.
Description
Technical Field
The invention relates to the field of ore dressing, in particular to a zinc dressing medicament composition for lead-zinc sulfide ores and a zinc-sulfur separation ore dressing method.
Background
The main useful minerals in the lead-zinc sulfide ore are galena and sphalerite, and the auxiliary minerals are pyrite, so that the pyrite is not suitable to be left in tailings because the pyrite is easy to oxidize and pollutes the environment. Lead-zinc separation plants generally separate 3 products of lead concentrate, zinc concentrate and sulfur concentrate, and the ore dressing process is generally a lead-zinc-sulfur separation process with priority. The most common processes for separating zinc and sulfur mainly comprise a zinc-sulfur-preferred process and a zinc-sulfur mixed separation-re-separation process.
In the zinc-sulfur re-selection preferential process, a large amount of lime is required to inhibit pyrite during zinc selection, the pH value of ore pulp is alkaline, sulfuric acid is required to be increased to activate the pyrite during sulfur selection, the pH value of the ore pulp is adjusted to be neutral, flotation equipment is extremely easy to corrode due to the addition of the sulfuric acid, the overhaul and maintenance cost of the equipment is increased, potential safety hazards exist in the operation process, and operation workers are slightly injured due to carelessness.
The zinc-sulfur mixed separation-re-separation process needs a large amount of lime to inhibit pyrite during zinc-sulfur separation, and due to the fact that the content of lime impurities is high, pipelines are prone to being blocked in the lime milk conveying process, the lime consumption is insufficient, production indexes are affected, sulfur concentrate produced by the zinc-sulfur separation process is low in grade and value, mineral separation wastewater is alkaline, the wastewater treatment difficulty is high, and the cost is high.
Disclosure of Invention
In view of the above, it is necessary to provide a beneficiation method for zinc-sulfur separation, which aims at the technical problems in the existing zinc-sulfur separation process.
The invention provides a zinc separation agent composition for lead-zinc sulfide ores, which is used for being added into lead separation tailings and is characterized by comprising the following agents: 200 portions of sodium sulfite, 200 portions of sodium bisulfite combined agent, 600 portions of copper sulfate and 10 to 40 portions of ethionamide.
Preferably, the first and second electrodes are formed of a metal,when the zinc-selecting medicament composition for lead-zinc sulfide ore is mixed with 1000000 parts of lead-selecting tailings, the zinc-selecting medicament composition for lead-zinc sulfide ore comprises the following medicaments in parts by weight: 400 parts of sodium sulfite and sodium bisulfite 1:1 composition, 600 parts of copper sulfate and 10-40 parts of ethionamide.
The invention also provides a zinc-sulfur separation beneficiation method, which comprises the following steps:
s10, putting the lead-selecting tailings into a first stirring barrel, and adding the zinc-selecting reagent composition for the lead-zinc sulfide ore into the first stirring barrel to obtain first ore pulp;
the first ore pulp enters a zinc roughing flotation tank for zinc roughing, concentrate obtained by zinc roughing enters a first zinc fine-selection flotation tank for first zinc fine selection, and tailings obtained by zinc roughing enter a first zinc scavenging flotation tank for first zinc scavenging;
the concentrate obtained by the first zinc concentration enters a second zinc concentration flotation tank for second zinc concentration, and the tailings obtained by the first zinc concentration return to a zinc roughing flotation tank;
concentrating and filter-pressing the concentrate obtained by the second zinc concentration to obtain a zinc concentrate product, and returning tailings obtained by the second zinc concentration to the first zinc concentration flotation tank;
returning the concentrate obtained by the first zinc scavenging to a zinc roughing flotation tank, and feeding the tailings obtained by the first zinc scavenging into a second zinc scavenging flotation tank for second zinc scavenging;
adding 5-15g/t of ethionamide into the second zinc scavenging flotation tank, returning the concentrate obtained by the second zinc scavenging to the first zinc scavenging flotation tank, and feeding the tailings of the second zinc scavenging into the third zinc scavenging flotation tank for carrying out third zinc scavenging;
concentrate obtained by the third zinc scavenging returns to the second zinc scavenging flotation tank, and tailings obtained by the third zinc scavenging enter a second stirring barrel;
s20, adding 80-150g/t of xanthate into a second stirring barrel to obtain second ore pulp, enabling the second ore pulp to enter a sulfur roughing flotation tank, enabling concentrate obtained by sulfur roughing to enter a sulfur concentration flotation tank, enabling sulfur roughing tailings to enter a first sulfur scavenging flotation tank, enabling concentrate obtained by sulfur concentration to be subjected to pressure filtration to obtain a sulfur concentrate product, and enabling the sulfur roughing tailings to return to the sulfur roughing flotation tank;
returning the concentrate obtained by the first sulfur scavenging to a sulfur roughing flotation tank, and enabling the first sulfur scavenging tailings to enter a second sulfur scavenging flotation tank;
adding 10-60g/t of xanthate into the second sulfur scavenging flotation tank, returning the concentrate obtained by the second sulfur scavenging to the first sulfur scavenging flotation tank, and feeding the second sulfur scavenging tailings into the third sulfur scavenging flotation tank;
and returning the concentrate obtained by the third sulfur scavenging to the second sulfur scavenging flotation tank, and discharging the final tailings serving as the third sulfur scavenging tail to a tailing pond.
Preferably, in step S10, 300g/t of 1:1 sodium sulfite and sodium bisulfite combined agent, 500g/t of copper sulfate and 35g/t of ethionamide are added into the lead-selecting tailings.
Preferably, in step S10, 10g/t of ethionamide is added into the second zinc scavenging flotation tank.
Preferably, in step S20, the xanthate is added into the second stirring barrel at a rate of 110g/t to obtain a second ore pulp.
Preferably, in step S20, the xanthate is added to the second sulfur scavenging flotation cell at 35 g/t.
The invention provides a zinc separation agent composition for lead-zinc sulfide ores, which comprises the following agents: 200 portions of sodium sulfite, 200 portions of sodium bisulfite combined agent, 600 portions of copper sulfate and 10 to 40 portions of ethionamide.
Preferably, each ton of lead-selecting tailings is mixed with the following medicaments in parts by weight: 400g of sodium sulfite and sodium bisulfite 1:1 composition, 600g of copper sulfate and 10-40g of ethionamide.
The invention adopts the new medicament combination to realize the process of preferentially selecting zinc and then selecting sulfur under the condition of natural pH value of ore pulp, the beneficiation wastewater is neutral, the wastewater treatment cost is reduced, and the environmental protection is facilitated.
Drawings
Fig. 1 is a flow chart of an embodiment of the beneficiation method for zinc-sulfur separation according to the present invention.
Detailed Description
The invention provides a zinc separation agent composition for lead-zinc sulfide ores, which is used for being added into lead separation tailings and comprises the following agents: 200 portions of sodium sulfite, 200 portions of sodium bisulfite combined agent, 600 portions of copper sulfate and 10 to 40 portions of ethionamide. Specifically, when the zinc-selecting medicament composition for lead-zinc sulfide ore is mixed with 1000000 parts of lead-selecting tailings, the zinc-selecting medicament composition for lead-zinc sulfide ore comprises the following medicaments in parts by weight: 400 parts of sodium sulfite and sodium bisulfite 1:1 composition, 600 parts of copper sulfate and 10-40 parts of ethionamide.
The invention also provides a zinc-sulfur separation beneficiation method, which comprises the following steps:
s10, putting the lead-selecting tailings into a first stirring barrel, and adding the zinc-selecting reagent composition for the lead-zinc sulfide ore into the first stirring barrel to obtain first ore pulp; the composition of the zinc-selecting agent for lead-zinc sulfide ore comprises 1:1 of sodium sulfite and sodium bisulfite combined agent 200-；
The first ore pulp enters a zinc roughing flotation tank for zinc roughing, concentrate obtained by zinc roughing enters a first zinc fine-selection flotation tank for first zinc fine selection, and tailings obtained by zinc roughing enter a first zinc scavenging flotation tank for first zinc scavenging;
the concentrate obtained by the first zinc concentration enters a second zinc concentration flotation tank for second zinc concentration, and the tailings obtained by the first zinc concentration return to a zinc roughing flotation tank;
concentrating and filter-pressing the concentrate obtained by the second zinc concentration to obtain a zinc concentrate product, and returning tailings obtained by the second zinc concentration to the first zinc concentration flotation tank;
returning the concentrate obtained by the first zinc scavenging to a zinc roughing flotation tank, and feeding the tailings obtained by the first zinc scavenging into a second zinc scavenging flotation tank for second zinc scavenging;
adding 5-15g/t of ethionamide into the second zinc scavenging flotation tank, returning the concentrate obtained by the second zinc scavenging to the first zinc scavenging flotation tank, and feeding the tailings of the second zinc scavenging into the third zinc scavenging flotation tank for carrying out third zinc scavenging;
concentrate obtained by the third zinc scavenging returns to the second zinc scavenging flotation tank, and tailings obtained by the third zinc scavenging enter a second stirring barrel;
s20, adding 80-150g/t of xanthate into a second stirring barrel to obtain second ore pulp, enabling the second ore pulp to enter a sulfur roughing flotation tank, enabling concentrate obtained by sulfur roughing to enter a sulfur concentration flotation tank, enabling sulfur roughing tailings to enter a first sulfur scavenging flotation tank, enabling concentrate obtained by sulfur concentration to be subjected to pressure filtration to obtain a sulfur concentrate product, and enabling the sulfur roughing tailings to return to the sulfur roughing flotation tank;
returning the concentrate obtained by the first sulfur scavenging to a sulfur roughing flotation tank, and enabling the first sulfur scavenging tailings to enter a second sulfur scavenging flotation tank;
adding 10-60g/t of xanthate into the second sulfur scavenging flotation tank, returning the concentrate obtained by the second sulfur scavenging to the first sulfur scavenging flotation tank, and feeding the second sulfur scavenging tailings into the third sulfur scavenging flotation tank;
and returning the concentrate obtained by the third sulfur scavenging to the second sulfur scavenging flotation tank, and discharging the final tailings serving as the third sulfur scavenging tail to a tailing pond.
Preferably, in step S10, 300g/t of 1:1 sodium sulfite and sodium bisulfite combined agent, 500g/t of copper sulfate and 35g/t of ethionamide are added into the lead-selecting tailings.
Preferably, in step S10, 10g/t of ethionamide is added into the second zinc scavenging flotation tank.
Preferably, in step S20, the xanthate is added into the second stirring barrel at a rate of 110g/t to obtain a second ore pulp.
Preferably, in step S20, the xanthate is added to the second sulfur scavenging flotation cell at 35 g/t.
The invention provides a zinc separation agent composition for lead-zinc sulfide ores, which comprises the following agents: 200 portions of sodium sulfite, 200 portions of sodium bisulfite combined agent, 600 portions of copper sulfate and 10 to 40 portions of ethionamide.
Preferably, each ton of lead-selecting tailings is mixed with the following medicaments in parts by weight: 400g of sodium sulfite and sodium bisulfite 1:1 composition, 600g of copper sulfate and 10-40g of ethionamide.
The invention adopts the new medicament combination to realize the process of preferentially selecting zinc and then selecting sulfur under the condition of natural pH value of ore pulp, the beneficiation wastewater is neutral, the wastewater treatment cost is reduced, and the environmental protection is facilitated.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. The zinc separation agent composition for lead-zinc sulfide ore is used for being added into lead separation tailings, and is characterized by comprising the following agents: 200 portions of sodium sulfite, 200 portions of sodium bisulfite combined agent, 600 portions of copper sulfate and 10 to 40 portions of ethionamide.
2. The chemical composition for lead zinc sulfide ore dressing according to claim 1, wherein when the chemical composition for lead zinc sulfide ore dressing is mixed with 1000000 parts of lead dressing tailings, the chemical composition for lead zinc sulfide ore dressing comprises the following chemicals in parts by weight: 400 parts of sodium sulfite and sodium bisulfite 1:1 composition, 600 parts of copper sulfate and 10-40 parts of ethionamide.
3. The beneficiation method for separating zinc and sulfur is characterized by comprising the following steps of:
s10, putting lead-dressing tailings into a first stirring barrel, and adding the zinc-dressing agent composition for lead-zinc sulfide ore according to claim 1 or 2 into the first stirring barrel to obtain first ore pulp;
the first ore pulp enters a zinc roughing flotation tank for zinc roughing, concentrate obtained by zinc roughing enters a first zinc fine-selection flotation tank for first zinc fine selection, and tailings obtained by zinc roughing enter a first zinc scavenging flotation tank for first zinc scavenging;
the concentrate obtained by the first zinc concentration enters a second zinc concentration flotation tank for second zinc concentration, and the tailings obtained by the first zinc concentration return to a zinc roughing flotation tank;
concentrating and filter-pressing the concentrate obtained by the second zinc concentration to obtain a zinc concentrate product, and returning tailings obtained by the second zinc concentration to the first zinc concentration flotation tank;
returning the concentrate obtained by the first zinc scavenging to a zinc roughing flotation tank, and feeding the tailings obtained by the first zinc scavenging into a second zinc scavenging flotation tank for second zinc scavenging;
adding 5-15g/t of ethionamide into the second zinc scavenging flotation tank, returning the concentrate obtained by the second zinc scavenging to the first zinc scavenging flotation tank, and feeding the tailings of the second zinc scavenging into the third zinc scavenging flotation tank for carrying out third zinc scavenging;
concentrate obtained by the third zinc scavenging returns to the second zinc scavenging flotation tank, and tailings obtained by the third zinc scavenging enter a second stirring barrel;
s20, adding 80-150g/t of xanthate into a second stirring barrel to obtain second ore pulp, enabling the second ore pulp to enter a sulfur roughing flotation tank, enabling concentrate obtained by sulfur roughing to enter a sulfur concentration flotation tank, enabling sulfur roughing tailings to enter a first sulfur scavenging flotation tank, enabling concentrate obtained by sulfur concentration to be subjected to pressure filtration to obtain a sulfur concentrate product, and enabling the sulfur roughing tailings to return to the sulfur roughing flotation tank;
returning the concentrate obtained by the first sulfur scavenging to a sulfur roughing flotation tank, and enabling the first sulfur scavenging tailings to enter a second sulfur scavenging flotation tank;
adding 10-60g/t of xanthate into the second sulfur scavenging flotation tank, returning the concentrate obtained by the second sulfur scavenging to the first sulfur scavenging flotation tank, and feeding the second sulfur scavenging tailings into the third sulfur scavenging flotation tank;
and returning the concentrate obtained by the third sulfur scavenging to the second sulfur scavenging flotation tank, and discharging the final tailings serving as the third sulfur scavenging tail to a tailing pond.
4. The beneficiation method for separating zinc and sulfur according to claim 3, wherein in the step S10, 300g/t of a 1:1 sodium sulfite and sodium bisulfite combined agent, 500g/t of copper sulfate and 35g/t of ethionamide are added into lead tailings.
5. The beneficiation method according to the zinc-sulfur separation according to claim 3, wherein in the step S10, ethionamide is added to the second zinc-scavenger flotation tank at a rate of 10 g/t.
6. The beneficiation method for zinc and sulfur separation according to claim 3, wherein in the step S20, the butyl xanthate is added into the second stirring barrel at a ratio of 110g/t to obtain the second ore pulp.
7. The beneficiation method according to claim 3, wherein in step S20, the xanthate is added to the second sulfur scavenging flotation tank at 35 g/t.
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|---|---|---|---|---|
| ES373300A1 (en) * | 1969-11-07 | 1971-12-16 | Asturiana De Zinc Sa | Procedure to recover metals base of complex sulfured minerals. (Machine-translation by Google Translate, not legally binding) |
| CA2116276A1 (en) * | 1993-02-23 | 1994-08-24 | Walter Hoecker | Flotation Processes |
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| CN102553724A (en) * | 2012-01-20 | 2012-07-11 | 西北有色地质研究院 | Method for recovering zinc mineral from Cu-Pb-Zn polymetallic sulfide ore containing carbon and pyrrhotite |
| CN104475261A (en) * | 2014-12-11 | 2015-04-01 | 中国科学院过程工程研究所 | Method for recovering low-grade copper-zinc mineral from cyanidation tailings |
| CN111632756A (en) * | 2020-06-11 | 2020-09-08 | 中国恩菲工程技术有限公司 | Beneficiation method of associated copper-lead-zinc-pyrite |
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2020
- 2020-10-27 CN CN202011160986.0A patent/CN113262881A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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