CN114042537B - Lead-separating collecting agent for lead-zinc-gold-silver sulfide ores and lead-separating method thereof - Google Patents
Lead-separating collecting agent for lead-zinc-gold-silver sulfide ores and lead-separating method thereof Download PDFInfo
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- CN114042537B CN114042537B CN202111359911.XA CN202111359911A CN114042537B CN 114042537 B CN114042537 B CN 114042537B CN 202111359911 A CN202111359911 A CN 202111359911A CN 114042537 B CN114042537 B CN 114042537B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910052946 acanthite Inorganic materials 0.000 title claims abstract description 15
- 229940056910 silver sulfide Drugs 0.000 title claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 title abstract description 16
- 239000012141 concentrate Substances 0.000 claims abstract description 81
- 229910052709 silver Inorganic materials 0.000 claims abstract description 32
- 239000004332 silver Substances 0.000 claims abstract description 32
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims abstract description 28
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 claims abstract description 24
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 19
- 239000011701 zinc Substances 0.000 claims abstract description 19
- 239000003112 inhibitor Substances 0.000 claims abstract description 9
- 238000005188 flotation Methods 0.000 claims abstract description 8
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052984 zinc sulfide Inorganic materials 0.000 claims abstract description 8
- LSMRBAGORXFPAB-UHFFFAOYSA-N gold;sulfanylidenesilver Chemical compound [Au].[Ag]=S LSMRBAGORXFPAB-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 230000002000 scavenging effect Effects 0.000 claims description 90
- 238000001914 filtration Methods 0.000 claims description 9
- 229910052737 gold Inorganic materials 0.000 abstract description 17
- 239000010931 gold Substances 0.000 abstract description 17
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 16
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 14
- 238000011084 recovery Methods 0.000 abstract description 7
- PQTCMBYFWMFIGM-UHFFFAOYSA-N gold silver Chemical compound [Ag].[Au] PQTCMBYFWMFIGM-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011133 lead Substances 0.000 description 166
- 239000003814 drug Substances 0.000 description 9
- 229910052683 pyrite Inorganic materials 0.000 description 3
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 3
- 239000011028 pyrite Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 2
- 229910052950 sphalerite Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052949 galena Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000006080 lead scavenger Substances 0.000 description 1
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral 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
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/025—Precious metal ores
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention provides a lead-selecting collecting agent for lead-zinc gold-silver sulphide ores, which comprises HQ77 and ethyl xanthate. A lead-zinc gold-silver sulphide ore lead-selecting method comprises the following steps: grinding the crude ore of the lead-zinc-gold-silver sulfide ore to obtain ore pulp, and then adding a zinc blende inhibitor D82, a lead collector HQ77 and ethyl xanthate into the ore pulp to enter lead roughing flotation. When the lead-separating collecting agent for lead-zinc-gold-silver sulphide ores is adopted for floatation, the gold-silver content in lead concentrate can be effectively improved by adopting the lead-separating collecting agent combination in the invention, so that the comprehensive value of the lead-zinc-gold-silver sulphide ore concentrate product is greatly improved. The lead collecting agent HQ77+ethylxanthate can effectively improve the lead recovery rate and the gold and silver recovery rate in the lead concentrate under the condition of properly reducing the main grade and the zinc recovery rate of the lead concentrate, thereby improving the comprehensive value of the beneficiation products of the lead-zinc-gold-silver sulfide ores.
Description
Technical Field
The invention relates to a lead-selecting collecting agent for lead-zinc gold-silver sulphide ores and a lead-selecting method thereof.
Background
The gold and silver in the lead-zinc-gold-silver sulphide ore is mainly enriched in each concentrate product in an associated mode, the gold and silver utilization rate in the lead concentrate is higher, and the gold and silver utilization rate in the zinc concentrate and the sulfur concentrate is lower, so that the gold and silver are enriched in the lead concentrate products as much as possible, the gold and silver utilization rate in the lead-zinc-gold-silver sulphide ore concentrate products can be improved, and the comprehensive benefit of a concentrating mill can be improved.
Gold and silver in lead-zinc-gold-silver sulphide ores are mainly associated with galena, zinc blende and pyrite, a lead collecting agent is improperly selected in lead separation operation, and the gold and silver content in lead concentrate is difficult to improve, so that the comprehensive value of a beneficiation product is affected.
Disclosure of Invention
The invention provides a lead collecting agent for lead-zinc-gold-silver sulfide ore, which can solve the problem of low gold and silver content in lead concentrate in the prior art by adopting the lead collecting agent combination in the invention when lead-zinc-gold-silver sulfide ore is floated.
The invention provides a lead-selecting method for lead-zinc-gold-silver sulfide ores, which solves the problems existing in the prior art.
The technical scheme of the invention is realized as follows: a collecting agent for lead, zinc, gold and silver sulfide ore comprises HQ77 and ethyl xanthate.
Further, the addition amount of HQ77 is 150-200g/t relative to each ton of lead zinc gold-silver sulphide ore, and the addition amount of ethyl xanthate is 10-20g/t relative to each ton of lead zinc gold-silver sulphide ore.
Further, ore pulp HQ77 and ethyl xanthate are added into the crude lead zinc gold-silver sulphide ore obtained after grinding the crude lead zinc gold-silver sulphide ore, and the crude lead zinc gold-silver sulphide ore enters the lead roughing flotation.
A lead-zinc gold-silver sulphide ore lead-selecting method comprises the following steps: grinding the crude ore of the lead-zinc-gold-silver sulfide ore to obtain ore pulp, and then adding a zinc blende inhibitor D82, a lead collector HQ77 and ethyl xanthate into the ore pulp to enter lead roughing flotation.
Further, the addition amount of the zinc blende inhibitor D82 is 200-250g/t relative to each ton of lead zinc gold-silver sulphide ore, the addition amount of the HQ77 is 150-200g/t relative to each ton of lead zinc gold-silver sulphide ore, and the addition amount of the ethyl xanthate is 10-20g/t relative to each ton of lead zinc gold-silver sulphide ore.
Further, D82 is added into the concentrate obtained by lead roughing for primary lead concentration, the concentrate obtained by primary lead concentration enters into secondary lead concentration, and the primary lead concentration tailings return to lead roughing; concentrating and press-filtering the concentrate obtained by the second lead concentration to obtain a lead concentrate product or carrying out the third lead concentration, and returning the tailings of the second lead concentration to lead concentration one; and when the concentrate obtained by the second lead concentration is subjected to the third lead concentration, the following steps are circulated: concentrating and press-filtering concentrate obtained by the Nth lead concentration to obtain a lead concentrate product or feeding the lead concentrate product into the (n+1) th lead concentration, and returning the Nth lead concentration tailings to lead concentration N-1; n is a natural number and is not less than 3.
Further, the addition amount of D82 in the concentrate obtained by lead roughing is 30-100g/t relative to each ton of lead zinc gold-silver sulphide ore.
Further, adding ethyl xanthate into tailings obtained by lead roughing to carry out first lead scavenging; the concentrate obtained by the first lead scavenging returns to lead roughing, the first lead scavenging tailings enter the second lead scavenging, the second lead scavenging concentrate returns to lead scavenging one, the second lead scavenging tailings enter the third lead scavenging or enter the subsequent zinc scavenging operation to serve as the entering ore pulp of the zinc scavenging operation, and when the second lead scavenging tailings enter the third lead scavenging, the following steps are circulated: the M-th lead scavenging concentrate returns to lead scavenging M-1, and the M-th lead scavenging tailings enter the M+1th lead scavenging or enter the subsequent zinc-selecting operation to serve as the ore pulp for the zinc-selecting operation or to be carried out; m is a natural number and is not less than 3.
Further, the addition amount of the ethyl xanthate in tailings obtained by lead roughing is 10-20g/t relative to each ton of lead-zinc-gold-silver sulphide ore.
Preferably, D82 of 30-100g/t is added into the concentrate obtained by lead roughing for primary lead concentration, the concentrate obtained by primary lead concentration enters into secondary lead concentration, and the tailings of primary lead concentration return to lead roughing; concentrating and press-filtering the concentrate obtained by the second lead concentration to obtain a lead concentrate product, and returning the second lead concentration tailings to lead concentration; adding 10-20g/t of ethyl xanthate into tailings obtained by lead roughing for primary lead scavenging; the concentrate obtained by the first lead scavenging returns to lead roughing, the first lead scavenging tailings enter the second lead scavenging, the second lead scavenging concentrate returns to lead scavenging one, the second lead scavenging tailings enter the third lead scavenging, the third lead scavenging concentrate returns to lead scavenging two, and the third lead scavenging tailings enter the subsequent zinc separating operation to serve as the entering ore pulp of the zinc separating operation.
The beneficial effects of the invention are as follows: when the lead-separating collecting agent for lead-zinc-gold-silver sulphide ores is adopted for floatation, the gold-silver content in lead concentrate can be effectively improved by adopting the lead-separating collecting agent combination in the invention, so that the comprehensive value of the lead-zinc-gold-silver sulphide ore concentrate product is greatly improved.
The invention provides a lead-selecting collector agent combination: the lead collecting agent HQ77+ethylxanthate can effectively improve the lead recovery rate and the gold and silver recovery rate in the lead concentrate under the condition of properly reducing the main grade and the zinc recovery rate of the lead concentrate, thereby improving the comprehensive value of the beneficiation products of the lead-zinc-gold-silver sulfide ores.
The invention has the advantages that the invention uses the collector HQ77 with better lead selectivity and poorer pyrite collecting capability and the yellow drug collector ethyl yellow drug with stronger gold and silver collecting capability than other minerals in combination. The two medicaments complement the collection property of gold and silver, so that gold associated with pyrite is enriched into a lead concentrate product, and the recovery rate of gold and silver in the lead concentrate is effectively improved, thereby improving the comprehensive value of the lead zinc gold and silver sulfide ore concentrate product.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic flow chart of an embodiment of a method for selecting lead from lead-zinc-gold-silver sulphide ores according to the invention;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
According to the flow chart shown in figure 1,
in the first embodiment, the crude ore of the lead-zinc-gold-silver sulfide ore is ground to obtain ore pulp with the mass concentration of 38 percent and the ore granularity of-0.074 mm in the ore pulp of about 75 percent. Then 200g/t of sphalerite inhibitor D82, 150g/t of lead collector HQ77 and 10g/t of ethyl xanthate are added to enter lead roughing flotation; adding 30g/t of D82 into the concentrate obtained by lead roughing to carry out primary lead concentration, enabling the concentrate obtained by primary lead concentration to enter secondary lead concentration, and returning the primary lead concentration tailings to lead roughing; concentrating and press-filtering the concentrate obtained by the second lead concentration to obtain a lead concentrate product, and returning the second lead concentration tailings to lead concentration; adding 10g/t ethyl xanthate into tailings obtained by lead roughing to carry out first lead scavenging; the concentrate obtained by the first lead scavenging returns to lead roughing, the first lead scavenging tailings enter the second lead scavenging, the second lead scavenging concentrate returns to lead scavenging one, the second lead scavenging tailings enter the third lead scavenging, the third lead scavenging concentrate returns to lead scavenging two, and the third lead scavenging tailings enter the subsequent zinc separating operation to serve as the entering ore pulp of the zinc separating operation. (the dosage of the medicament is the mass of the medicament consumed by each ton of crude ore)
According to the second embodiment, according to the flow chart shown in fig. 1, the crude ore of the lead-zinc-gold-silver sulfide ore is ground to obtain ore pulp with the mass concentration of 43%, and the granularity of the ore pulp is about 80% in the ore pulp with the granularity of-0.074 mm. Then 250g/t of zinc blende inhibitor D82, 200g/t of lead collector HQ77 and 20g/t of ethyl xanthate are added to enter lead roughing flotation; adding 100g/t of D82 into the concentrate obtained by lead roughing to carry out primary lead concentration, enabling the concentrate obtained by primary lead concentration to enter secondary lead concentration, and returning the primary lead concentration tailings to lead roughing; concentrating and press-filtering the concentrate obtained by the second lead concentration to obtain a lead concentrate product, and returning the second lead concentration tailings to lead concentration; adding 20g/t ethyl xanthate into tailings obtained by lead roughing to carry out first lead scavenging; the concentrate obtained by the first lead scavenging returns to lead roughing, the first lead scavenging tailings enter the second lead scavenging, the second lead scavenging concentrate returns to lead scavenging one, the second lead scavenging tailings enter the third lead scavenging, the third lead scavenging concentrate returns to lead scavenging two, and the third lead scavenging tailings enter the subsequent zinc separating operation to serve as the entering ore pulp of the zinc separating operation. (the dosage of the medicament is the mass of the medicament consumed by each ton of crude ore)
According to the flow chart shown in fig. 1, the crude lead-zinc-gold-silver sulfide ore is ground to obtain ore pulp with the mass concentration of 39%, and the ore granularity of-0.074 mm in the ore pulp is about 78%. Then 225g/t of zinc blende inhibitor D82, 170g/t of lead collector HQ77 and 15g/t of ethyl xanthate are added to enter lead roughing flotation; adding 65g/t D82 into the concentrate obtained by lead roughing to carry out primary lead concentration, enabling the concentrate obtained by primary lead concentration to enter secondary lead concentration, and returning the primary lead concentration tailings to lead roughing; concentrating and press-filtering the concentrate obtained by the second lead concentration to obtain a lead concentrate product, and returning the second lead concentration tailings to lead concentration; adding 15g/t ethyl xanthate into tailings obtained by lead roughing for primary lead scavenging; the concentrate obtained by the first lead scavenging returns to lead roughing, the first lead scavenging tailings enter the second lead scavenging, the second lead scavenging concentrate returns to lead scavenging one, the second lead scavenging tailings enter the third lead scavenging, the third lead scavenging concentrate returns to lead scavenging two, and the third lead scavenging tailings enter the subsequent zinc separating operation to serve as the entering ore pulp of the zinc separating operation. (the dosage of the medicament is the mass of the medicament consumed by each ton of crude ore)
Adding a lead combined collector HQ77+ethylxanthate into a stirring barrel before lead selection for size mixing; and adding ethyl xanthate into the lead scavenger I to strengthen the collection of gold and silver. About sphalerite inhibitor D82 was added to the lead concentrate i to increase the primary grade of the lead concentrate. Lead scavenging II, lead scavenging III and lead concentrating II are not added with ore dressing agents. The foam product of the lead concentration II is bracketed to form a lead concentrate product, and ore pulp after lead scavenging III enters the next zinc concentration operation.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The application of the lead-selecting collector in lead-zinc-gold-silver sulphide ores is characterized in that: the lead-selecting collector comprises HQ77 and ethyl xanthate.
2. The use of the lead-selecting collector as claimed in claim 1 in lead-zinc-gold-silver sulphide ores, characterized in that: the addition amount of HQ77 is 150-200g/t for each ton of lead zinc gold-silver sulphide ore, and the addition amount of ethyl xanthate is 10-20g/t for each ton of lead zinc gold-silver sulphide ore.
3. The use of the lead-selecting collector as claimed in claim 1 in lead-zinc-gold-silver sulphide ores, characterized in that: ore pulp HQ77 and ethyl xanthate are added into the crude lead zinc gold-silver sulphide ore obtained after grinding, and the crude lead zinc gold-silver sulphide ore enters lead roughing flotation.
4. A lead-zinc gold-silver sulphide ore lead-selecting method is characterized in that: the method comprises the following steps: grinding the crude ore of the lead-zinc-gold-silver sulfide ore to obtain ore pulp, and then adding a zinc blende inhibitor D82, a lead collector HQ77 and ethyl xanthate into the ore pulp to enter lead roughing flotation.
5. The lead-zinc-gold-silver sulphide ore lead-separating method according to claim 4, wherein the method comprises the following steps: the addition amount of the zinc blende inhibitor D82 is 200-250g/t relative to each ton of lead zinc gold-silver sulphide ore, the addition amount of the HQ77 is 150-200g/t relative to each ton of lead zinc gold-silver sulphide ore, and the addition amount of the ethyl xanthate is 10-20g/t relative to each ton of lead zinc gold-silver sulphide ore.
6. The lead-zinc-gold-silver sulphide ore lead-separating method according to claim 4, wherein the method comprises the following steps: d82 is added into the concentrate obtained by lead roughing for primary lead concentration, the concentrate obtained by primary lead concentration enters into secondary lead concentration, and the primary lead concentration tailings return to lead roughing; concentrating and press-filtering the concentrate obtained by the second lead concentration to obtain a lead concentrate product or carrying out the third lead concentration, and returning the tailings of the second lead concentration to lead concentration one; and when the concentrate obtained by the second lead concentration is subjected to the third lead concentration, the following steps are circulated: concentrating and press-filtering concentrate obtained by the Nth lead concentration to obtain a lead concentrate product or feeding the lead concentrate product into the (n+1) th lead concentration, and returning the Nth lead concentration tailings to lead concentration N-1; n is a natural number and is not less than 3.
7. The lead-zinc-gold-silver sulphide ore lead-separating method of claim 6, wherein the method comprises the following steps: the adding amount of D82 in the concentrate obtained by lead roughing is 30-100g/t relative to each ton of lead zinc gold-silver sulphide ore.
8. The lead-zinc-gold-silver sulphide ore lead-separating method according to claim 4, wherein the method comprises the following steps: adding ethyl xanthate into tailings obtained by lead roughing to carry out first lead scavenging; the concentrate obtained by the first lead scavenging returns to lead roughing, the first lead scavenging tailings enter the second lead scavenging, the second lead scavenging concentrate returns to lead scavenging one, the second lead scavenging tailings enter the third lead scavenging or enter the subsequent zinc scavenging operation to serve as the entering ore pulp of the zinc scavenging operation, and when the second lead scavenging tailings enter the third lead scavenging, the following steps are circulated: the M-th lead scavenging concentrate returns to lead scavenging M-1, and the M-th lead scavenging tailings enter the M+1th lead scavenging or enter the subsequent zinc-selecting operation to serve as the ore pulp for the zinc-selecting operation or to be carried out; m is a natural number and is not less than 3.
9. The lead-zinc-gold-silver sulphide ore lead-separating method of claim 8, wherein the method comprises the following steps: the addition amount of the ethyl xanthate in tailings obtained by lead roughing is 10-20g/t relative to each ton of lead zinc gold-silver sulphide ore.
10. The lead-zinc-gold-silver sulphide ore lead-separating method according to claim 4, wherein the method comprises the following steps: adding 30-100g/t of D82 into the concentrate obtained by lead roughing to carry out primary lead concentration, enabling the concentrate obtained by primary lead concentration to enter secondary lead concentration, and returning the primary lead concentration tailings to lead roughing; concentrating and press-filtering the concentrate obtained by the second lead concentration to obtain a lead concentrate product, and returning the second lead concentration tailings to lead concentration; adding 10-20g/t of ethyl xanthate into tailings obtained by lead roughing for primary lead scavenging; the concentrate obtained by the first lead scavenging returns to lead roughing, the first lead scavenging tailings enter the second lead scavenging, the second lead scavenging concentrate returns to lead scavenging one, the second lead scavenging tailings enter the third lead scavenging, the third lead scavenging concentrate returns to lead scavenging two, and the third lead scavenging tailings enter the subsequent zinc separating operation to serve as the entering ore pulp of the zinc separating operation.
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| CN115634777B (en) * | 2022-10-31 | 2023-06-20 | 江西省宜丰万国矿业有限公司 | Flotation method for improving recovery rate of associated gold and silver in lead zinc sulfide ore |
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| 新型环保抑制剂在细粒级硫化铜硫分离中的试验研究;张月等;湖南有色金属;第35卷(第2期);19-22 * |
| 湖南某铅锌矿无碱浮选试验研究;李希掌等;矿冶工程;第41卷(第3期);75-78/83 * |
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