CN114345558B - Zinc kiln slag silver flotation combined activator and application method thereof - Google Patents
Zinc kiln slag silver flotation combined activator and application method thereof Download PDFInfo
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- CN114345558B CN114345558B CN202111490091.8A CN202111490091A CN114345558B CN 114345558 B CN114345558 B CN 114345558B CN 202111490091 A CN202111490091 A CN 202111490091A CN 114345558 B CN114345558 B CN 114345558B
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- kiln slag
- concentration
- zinc kiln
- silver
- combined activator
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 39
- 239000004332 silver Substances 0.000 title claims abstract description 39
- 239000002893 slag Substances 0.000 title claims abstract description 38
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 33
- 239000011701 zinc Substances 0.000 title claims abstract description 33
- 238000005188 flotation Methods 0.000 title claims abstract description 25
- 239000012190 activator Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 17
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 17
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 17
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 17
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000012964 benzotriazole Substances 0.000 claims abstract description 14
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 claims description 18
- 238000000227 grinding Methods 0.000 claims description 18
- 239000012141 concentrate Substances 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 238000005261 decarburization Methods 0.000 claims description 9
- 239000003350 kerosene Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- QWENMOXLTHDKDL-UHFFFAOYSA-N pentoxymethanedithioic acid Chemical compound CCCCCOC(S)=S QWENMOXLTHDKDL-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 7
- 235000010755 mineral Nutrition 0.000 claims description 7
- 239000011707 mineral Substances 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 6
- 229940079593 drug Drugs 0.000 claims description 6
- 238000004537 pulping Methods 0.000 claims description 6
- 230000002000 scavenging effect Effects 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 230000004913 activation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 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
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910001739 silver mineral Inorganic materials 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
Classifications
-
- 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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a zinc kiln slag silver flotation combined activator which comprises, by weight, 1-2.5 parts of ferrous sulfate and 1-1.5 parts of benzotriazole. Meanwhile, the invention also provides an application method of the zinc kiln slag silver flotation combined activator. The mixture of benzotriazole and ferrous sulfate in the combined activator has the characteristics of low cost, small dosage, excellent activation effect and the like, and has little influence on the environment. Meanwhile, the application process has the advantages of strong adaptability and high metal recovery rate.
Description
Technical Field
The invention relates to the technical field of mineral processing, in particular to a zinc kiln slag silver flotation combined activator and an application method thereof.
Background
The zinc kiln slag is obtained by adding 40% -50% of coke powder into zinc hydrometallurgy leaching slag, extracting zinc, lead and other metals at high temperature in a rotary kiln, and the zinc kiln slag is rich in silver, gold, copper, gallium, germanium and other valuable metals besides partial incomplete combustion residues of the coke powder, so that the zinc kiln slag is a valuable secondary resource.
The beneficiation method for treating zinc kiln slag has the advantages of simple flow structure, low process cost and small environmental pollution, but for silver minerals, the metal recovery rate obtained by conventional sulfide ore flotation agents and processes is generally low, because a large amount of ferrous sulfide minerals are formed in the high-temperature reduction roasting process of leached slag, silver in kiln slag is mainly associated with ferrous sulfide, conventional recovery of silver in kiln slag by flotation of ferrous sulfide generally requires addition of sulfuric acid or copper sulfate to activate ferrous sulfide, but the defects of large consumption and poor activation effect of sulfuric acid or copper sulfate exist, particularly sulfuric acid also has huge potential safety hazards.
Disclosure of Invention
The invention aims to solve the technical problem of providing a zinc kiln slag silver flotation combined activator which is simple in composition, good in activation effect and small in environmental influence and an application method.
The invention aims to provide an application method of the zinc kiln slag silver flotation combined activator.
In order to solve the problems, the zinc kiln slag silver flotation combined activator is characterized by comprising the following components in percentage by weight: the combined activator comprises, by weight, 1-2.5 parts of ferrous sulfate and 1-1.5 parts of benzotriazole.
The application method of the zinc kiln slag silver flotation combined activator comprises the following steps:
⑴ Grinding:
adding water into zinc kiln slag, pulping until the concentration is 55%, grinding, and controlling the grinding fineness to be 70% -80% -0.074mm to obtain a grinding product;
⑵ Decarburization flotation:
adding water into the ground ore product to pulp until the concentration is 28% -35%, adding 350-600 g of collector A into 1 t zinc kiln slag, and carrying out rough concentration and concentration to obtain carbon concentrate and decarburized tailings;
⑶ Silver flotation:
and adding water into the decarburized tailings to carry out slurry mixing until the concentration is 25-30%, adding 80-150 g of combined activating agent and 100-250 g of collecting agent B into 1 t zinc kiln slag, and carrying out rough concentration, concentration and scavenging to obtain silver concentrate and tailings.
The collector A in the step ⑵ is prepared from 2 # oil and kerosene according to the following ratio of 1:1 weight ratio, and the 2 # oil and kerosene are added into the pulp of the ground mineral product after pulp mixing.
The adding method of the ⑶ combined activator is to add ferrous sulfate into ore pulp after the decarburization tailing is mixed, add benzotriazole after stirring for 3 minutes, and continue stirring for 5 minutes.
In the step ⑶, the collector B is prepared from amyl xanthate and butylamine black according to a proportion of 1:2 weight ratio, and the amyl xanthate and the butylamine black drug are simultaneously added into ore pulp after the decarburization tailing pulp is mixed.
Compared with the prior art, the invention has the following advantages:
1. The silver-containing ferrous sulfate mineral is activated by benzotriazole and ferrous sulfate, and the benzotriazole can be deposited on the surface of the silver-containing ferrous sulfate mineral after forming a complex with ferrous ions in the ferrous sulfate, so that the surface of the silver-containing ferrous sulfate mineral is activated in a hydrophobic manner.
2. The mixture of benzotriazole and ferrous sulfate in the combined activator has the characteristics of low cost, small dosage, excellent activation effect and the like, and has little influence on the environment. Meanwhile, the application process has the advantages of strong adaptability and high metal recovery rate.
Detailed Description
The zinc kiln slag silver flotation combined activating agent comprises, by weight, 1-2.5 parts of ferrous sulfate and 1-1.5 parts of benzotriazole.
The application method of the zinc kiln slag silver flotation combined activator comprises the following steps:
⑴ Grinding:
Adding water into zinc kiln slag, pulping until the concentration is 55%, grinding, and controlling the grinding fineness to be 70% -80% -0.074mm to obtain a grinding product.
⑵ Decarburization flotation:
Adding water into the ground ore product to pulp until the concentration is 28% -35%, adding 350-600 g of collector A into 1 t zinc kiln slag, and carrying out roughing and concentration to obtain carbon concentrate and decarburized tailings.
Wherein: collector A is prepared from 2 # oil and kerosene according to a weight ratio of 1:1 weight ratio, and the 2 # oil and kerosene are added into the pulp of the ground mineral product after pulp mixing.
⑶ Silver flotation:
Adding water into decarburized tailings to carry out slurry mixing until the concentration is 25-30%, adding 80-150 g of combined activating agent and 100-250 g of collecting agent B into 1 t zinc kiln slag, and carrying out rough concentration, concentration and scavenging to obtain silver concentrate and tailings.
Wherein: the adding method of the combined activator is to add ferrous sulfate into ore pulp after the decarburization tailings are slurried, add benzotriazole after stirring for 3 minutes, and continue stirring for 5 minutes.
The collector B is prepared from amyl xanthate and butylamine black according to the weight ratio of 1:2 weight ratio, and the amyl xanthate and the butylamine black drug are simultaneously added into ore pulp after the decarburization tailing pulp is mixed.
Example 1
The grade of a certain zinc kiln slag C, ag is 20.22 percent and 155g/t respectively.
Taking a proper amount of the kiln slag representative sample, pulping until the concentration is 55%, and grinding, wherein the grinding fineness is controlled to be 75-0.074 mm; mixing the ground ore product to 29%, adding 250g/t of oil of 2 # and 250g/t of kerosene at the same time for carbon floatation, and carrying out roughing and concentration to obtain carbon concentrate and decarburized tailings; and (3) after the decarburized tailings are slurried to reach 28%, adding 60g/t of ferrous sulfate, stirring and reacting for 3min, adding 50g/t of benzotriazole, stirring and reacting for 5min, and further adding 50g/t of amyl xanthate and 100g/t of butylamine black drug simultaneously for silver flotation, and obtaining silver concentrate and tailings through roughing, concentration and scavenging respectively.
Through assay analysis, the grade of silver in the silver concentrate is 670g/t, and the recovery rate is 81.95%.
Example 2
The grade of a certain zinc kiln slag C, ag is 17.35 percent and 231g/t respectively.
Taking a proper amount of the kiln slag representative sample, pulping until the concentration is 55%, and grinding, wherein the grinding fineness is controlled to be 80-0.074 mm; mixing the ground ore product to 28% concentration, adding 200g/t of 2 # oil and 200g/t of kerosene at the same time to carry out carbon floatation, and carrying out roughing and concentration to produce carbon concentrate and decarburized tailings; and (3) after the decarburized tailings are slurried to 30%, adding 80g/t of ferrous sulfate, stirring and reacting for 3min, adding 40g/t of benzotriazole, stirring and reacting for 5min, and further adding 80g/t of amyl xanthate and 160g/t of butylamine black drug for silver flotation, and obtaining silver concentrate and tailings through roughing, concentration and scavenging respectively.
Through assay analysis, the grade of silver in the silver concentrate is 750g/t, and the recovery rate is 83.77%.
Example 3
The grade of the zinc kiln slag except C, ag is 25.33 percent and 260g/t respectively.
Taking a proper amount of the kiln slag representative sample, pulping until the concentration is 55%, and grinding, wherein the grinding fineness is controlled to be 80-0.074 mm; mixing the ground ore product to 28% concentration, adding 300g/t of 2 # oil and 300g/t of kerosene at the same time to carry out carbon floatation, and carrying out roughing and concentration to produce carbon concentrate and decarburized tailings; and (3) after the decarburized tailings are slurried to 25%, adding 75g/t of ferrous sulfate, stirring and reacting for 3min, adding 75g/t of benzotriazole, stirring and reacting for 5min, and further adding 80g/t of amyl xanthate and 160g/t of butylamine black drug for silver flotation, and obtaining silver concentrate and tailings through roughing, selecting and scavenging respectively.
Through assay analysis, the grade of silver in the silver concentrate is 810g/t, and the recovery rate is 80.11%.
Claims (4)
1. An application method of a zinc kiln slag silver flotation combined activator comprises the following steps:
⑴ Grinding:
adding water into zinc kiln slag, pulping until the concentration is 55%, grinding, and controlling the grinding fineness to be 70% -80% -0.074mm to obtain a grinding product;
⑵ Decarburization flotation:
adding water into the ground ore product to pulp until the concentration is 28% -35%, adding 350-600 g of collector A into 1 t zinc kiln slag, and carrying out rough concentration and concentration to obtain carbon concentrate and decarburized tailings;
⑶ Silver flotation:
Adding water into the decarburized tailings to carry out slurry mixing until the concentration is 25-30%, adding 80-150 g of combined activating agent and 100-250 g of collecting agent B into 1 t zinc kiln slag, and carrying out rough concentration, concentration and scavenging to obtain silver concentrate and tailings; the combined activator consists of 1-2.5 parts by weight of ferrous sulfate and 1-1.5 parts by weight of benzotriazole.
2. The application method of the zinc kiln slag silver flotation combined activator as set forth in claim 1, which is characterized in that: the collector A in the step ⑵ is prepared from 2 # oil and kerosene according to the following ratio of 1:1 weight ratio, and the 2 # oil and kerosene are added into the pulp of the ground mineral product after pulp mixing.
3. The application method of the zinc kiln slag silver flotation combined activator as set forth in claim 1, which is characterized in that: the adding method of the ⑶ combined activator is to add ferrous sulfate into ore pulp after the decarburization tailing is mixed, add benzotriazole after stirring for 3 minutes, and continue stirring for 5 minutes.
4. The application method of the zinc kiln slag silver flotation combined activator as set forth in claim 1, which is characterized in that: in the step ⑶, the collector B is prepared from amyl xanthate and butylamine black according to a proportion of 1:2 weight ratio, and the amyl xanthate and the butylamine black drug are simultaneously added into ore pulp after the decarburization tailing pulp is mixed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111490091.8A CN114345558B (en) | 2021-12-08 | 2021-12-08 | Zinc kiln slag silver flotation combined activator and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111490091.8A CN114345558B (en) | 2021-12-08 | 2021-12-08 | Zinc kiln slag silver flotation combined activator and application method thereof |
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| CN114345558A CN114345558A (en) | 2022-04-15 |
| CN114345558B true CN114345558B (en) | 2024-05-17 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4090867A (en) * | 1975-04-30 | 1978-05-23 | Canadian Patents & Development Limited | Flotation of non-sulphide copper ores |
| GB1550961A (en) * | 1977-01-21 | 1979-08-22 | Sumitomo Metal Mining Co | Flotation process for copper ores and smelter slags |
| CN103620064A (en) * | 2011-04-20 | 2014-03-05 | 安东尼奥·M·奥斯特尔 | A process of gold and copper recovery from mixed oxide-sulfide copper ores |
| CN104884392A (en) * | 2012-10-22 | 2015-09-02 | 佐治亚-太平洋化工品有限公司 | Processes for the separation of ores |
| CN105032192A (en) * | 2015-06-30 | 2015-11-11 | 苏州佑君环境科技有限公司 | Antisludging agent for low-phosphorous reverse osmosis membrane and preparation method of antisludging agent |
| CN109137016A (en) * | 2018-09-30 | 2019-01-04 | 湖州金业电镀有限公司 | A kind of alkalinity graphene Zn-Fe alloy electroplating liquid, preparation method and electroplating technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JO3415B1 (en) * | 2011-03-30 | 2019-10-20 | Crystal Lagoons Tech Inc | System for treating water used for industrial purposes |
-
2021
- 2021-12-08 CN CN202111490091.8A patent/CN114345558B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4090867A (en) * | 1975-04-30 | 1978-05-23 | Canadian Patents & Development Limited | Flotation of non-sulphide copper ores |
| GB1550961A (en) * | 1977-01-21 | 1979-08-22 | Sumitomo Metal Mining Co | Flotation process for copper ores and smelter slags |
| CN103620064A (en) * | 2011-04-20 | 2014-03-05 | 安东尼奥·M·奥斯特尔 | A process of gold and copper recovery from mixed oxide-sulfide copper ores |
| CN104884392A (en) * | 2012-10-22 | 2015-09-02 | 佐治亚-太平洋化工品有限公司 | Processes for the separation of ores |
| CN105032192A (en) * | 2015-06-30 | 2015-11-11 | 苏州佑君环境科技有限公司 | Antisludging agent for low-phosphorous reverse osmosis membrane and preparation method of antisludging agent |
| CN109137016A (en) * | 2018-09-30 | 2019-01-04 | 湖州金业电镀有限公司 | A kind of alkalinity graphene Zn-Fe alloy electroplating liquid, preparation method and electroplating technology |
Non-Patent Citations (2)
| Title |
|---|
| 砷酸盐型氧化铜矿石的浮选――螯合剂苯并三唑在铜矿石浮选中的应用;赵援;邓维永;姚世云;魏华;;云南冶金(第02期);19-24 * |
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