CN114178055A - Process for efficiently recovering silver from smelting waste residues - Google Patents
Process for efficiently recovering silver from smelting waste residues Download PDFInfo
- Publication number
- CN114178055A CN114178055A CN202111427279.8A CN202111427279A CN114178055A CN 114178055 A CN114178055 A CN 114178055A CN 202111427279 A CN202111427279 A CN 202111427279A CN 114178055 A CN114178055 A CN 114178055A
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- CN
- China
- Prior art keywords
- grinding
- flotation
- tank body
- smelting waste
- flotation agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 39
- 239000004332 silver Substances 0.000 title claims abstract description 39
- 239000002699 waste material Substances 0.000 title claims abstract description 31
- 238000003723 Smelting Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000008396 flotation agent Substances 0.000 claims abstract description 55
- 238000000227 grinding Methods 0.000 claims abstract description 42
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000005188 flotation Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000012141 concentrate Substances 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 26
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 15
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims description 10
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 10
- ZSFDBVJMDCMTBM-UHFFFAOYSA-N ethane-1,2-diamine;phosphoric acid Chemical compound NCCN.OP(O)(O)=O ZSFDBVJMDCMTBM-UHFFFAOYSA-N 0.000 claims description 10
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims 3
- 230000000149 penetrating effect Effects 0.000 claims 2
- 238000011084 recovery Methods 0.000 abstract description 14
- 230000003247 decreasing effect Effects 0.000 description 8
- 238000011049 filling Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000002386 leaching Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/014—Organic compounds containing phosphorus
-
- 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
- B03D1/14—Flotation machines
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
- C22B11/042—Recovery of noble metals from waste materials
- C22B11/044—Recovery of noble metals from waste materials from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge
-
- 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 discloses a process for efficiently recovering silver from smelting waste residues, which comprises the following steps: s1: adding water into the smelting waste slag and grinding; s2: filtering the slurry ground in the S1; s3: adding a flotation agent into the filter residue filtered by the S2 for flotation to obtain silver concentrate and tailings; the device for grinding in S1 includes the grinding tank body, the internal filter screen that can dismantle of grinding tank is provided with, the filter screen will the grinding tank inner chamber is cut apart into the grinding chamber that is located the top and is located the collection liquid chamber of below, filter screen upper end lower extreme still horizontal distribution has a baffle, baffle one end is run through the grinding tank body and rather than sliding connection, be provided with the axis of rotation in the grinding chamber, be fixed with a plurality of crushing sword in the axis of rotation, it has the discharging pipe to collect liquid chamber one side intercommunication. The invention improves the recovery rate of the metallic silver.
Description
Technical Field
The invention relates to the technical field of silver recovery, in particular to a process for efficiently recovering silver from smelting waste residues.
Background
The smelting waste slag often contains more metal silver, so that the silver in the smelting waste slag needs to be recovered in order to avoid resource waste, the most main recovery method at present is a leaching method, but the problem of low metal silver recovery rate exists in the existing leaching method.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a process for efficiently recovering silver from smelting waste residues, and the recovery rate of metallic silver is improved.
The invention provides a process for efficiently recovering silver from smelting waste residues, which comprises the following steps:
s1: adding water into the smelting waste slag and grinding;
s2: filtering the slurry ground in the S1;
s3: and adding a flotation agent into the filter residue filtered by the S2 for flotation to obtain silver concentrate and tailings.
Preferably, the addition amount of the flotation agent is 2-4kg of the flotation agent per ton of filter residue.
Preferably, the flotation agent comprises the following raw materials in parts by weight: 10-20 parts of N-dithiocarbazolyl formate, 10-20 parts of ethylene diamine phosphate, 1-5 parts of sodium lauryl sulfate and 1-5 parts of isopropanol.
Preferably, the device for grinding in S1 includes the grinding tank body, the internal filter screen that can dismantle of grinding tank is provided with, the filter screen will the grinding tank inner chamber is cut apart into the grinding chamber that is located the top and is located the collection liquid chamber of below, filter screen upper end lower extreme still horizontal distribution has a baffle, baffle one end is run through the grinding tank body and rather than sliding connection, be provided with the axis of rotation in the grinding chamber, be fixed with a plurality of crushing sword in the axis of rotation, it has the discharging pipe to collect liquid chamber one side intercommunication.
Preferably, the angles of the upward inclination and inclination of the crushing blades from top to middle are gradually decreased, and the angles of the downward inclination and inclination of the crushing blades from bottom to middle are gradually decreased.
Preferably, the device for flotation in S3 includes the flotation tank body, the lateral wall intercommunication of the flotation tank body has concentrate export and tailing export, be provided with the (mixing) shaft in the flotation tank body, the fixed stirring rake that is provided with on the (mixing) shaft, the top of the flotation tank body still is provided with the flotation agent ration that is used for the ration to throw the flotation agent and adds the subassembly.
Preferably, flotation agent ration adds subassembly includes the mounting panel, it is provided with a row of material pipe to link up on the mounting panel, the mounting panel upper end is rotated and is connected with the filling tube, the filling tube link up be provided with a plurality of with arrange the branch material chamber that the material pipe matches, the filling tube upper end is rotated and is connected with the flotation agent holding vessel, flotation agent holding vessel lower extreme liquid outlet in addition, the liquid outlet with arrange material pipe dislocation set.
Preferably, the lower end of the flotation agent storage tank is also provided with an ultrasonic generator.
Preferably, the (mixing) shaft is still fixed to be provided with accepts the board, it is located to accept the board the both ends of stirring rake, just the outside of accepting the board is provided with the scraper blade of vertical distribution, the scraper blade with accept board sliding connection just the scraper blade with it still overlaps and is equipped with the spring to accept between the board.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) the flotation agent comprises N-dithiocarbazolyl formate, ethylene diamine phosphate, sodium lauryl sulfate and isopropanol, wherein the N-dithiocarbazolyl formate, the ethylene diamine phosphate and the sodium lauryl sulfate have a certain synergistic effect on improving the recovery rate of silver.
(2) The angle of the upward inclination and the inclination angle of the crushing cutter in the grinding device are gradually decreased from top to middle, the angle of the downward inclination and the inclination angle of the crushing cutter are gradually decreased from bottom to middle, wherein the downward inclination crushing cutter positioned at the lower half part can generate an upward acting force on the material in the rotating process, the upward inclination crushing cutter positioned at the upper half part can generate a downward acting force on the material in the rotating process, and the two acting forces collide with each other, so that the grinding effect of the smelting waste residue is obviously improved.
(3) The flotation agent quantitative adding component in the flotation device can realize the quantitative addition of the flotation agent, the flotation agent in the flotation agent storage tank is filled with the material distribution cavity by rotating the feeding pipe during the addition, and then the flotation agent in the material distribution cavity can enter the flotation tank body when the material distribution cavity rotates to be communicated with the material discharge pipe; the ultrasonic generator arranged at the lower end of the flotation tank body can further improve the flotation effect; the scraper blade that sets up on the (mixing) shaft can avoid the enrichment of material at the flotation tank lateral wall, avoids the waste of resource.
Drawings
FIG. 1 is a schematic view of a polishing apparatus according to the present invention;
FIG. 2 is a schematic view of the flotation apparatus according to the present invention;
fig. 3 is a schematic structural diagram of a flotation agent quantitative adding assembly provided by the invention.
In the figure: 1-grinding tank body, 2-crushing cutter, 3-rotating shaft, 4-grinding cavity, 5-filter screen, 6-partition plate, 7-liquid collecting cavity, 8-discharging pipe, 9-flotation tank body, 10-concentrate outlet, 11-stirring shaft, 12-flotation agent quantitative adding component, 121-flotation agent storage tank, 122-charging pipe, 123-discharging pipe, 124-mounting plate, 125-material distribution cavity, 126-liquid outlet, 13-spring, 14-scraper, 15-tailing outlet, 16-ultrasonic generator, 17-bearing plate and 18-stirring paddle.
Detailed Description
Referring to fig. 1, the device for grinding provided by the invention comprises a grinding tank body 1, wherein a filter screen 5 is detachably arranged in the grinding tank body 1, the filter screen 5 divides an inner cavity of the grinding tank body 1 into a grinding cavity 4 positioned above and a liquid collecting cavity 7 positioned below, a partition plate 6 is further horizontally distributed at the upper end/lower end of the filter screen 5, one end of the partition plate 6 penetrates through the grinding tank body 1 and is in sliding connection with the grinding tank body, a rotating shaft 3 is arranged in the grinding cavity 4, a plurality of crushing cutters 2 are fixed on the rotating shaft 3, and a discharge pipe 8 is communicated with one side of the liquid collecting cavity 7; the angles of the upward inclination and inclination of the crushing knives 2 from top to middle are gradually decreased, and the angles of the downward inclination and inclination of the crushing knives 2 from bottom to middle are gradually decreased.
The angle of the upward inclination and inclination of the crushing cutter 2 in the grinding device is gradually decreased from top to middle, the angle of the downward inclination and inclination of the crushing cutter 2 is gradually decreased from bottom to middle, wherein the downward inclination of the crushing cutter 2 at the lower half part can generate an upward acting force on the material in the rotating process, the upward inclination of the crushing cutter 2 at the upper half part can generate a downward acting force on the material in the rotating process, and the two acting forces collide with each other, so that the grinding effect of the smelting waste residue is obviously improved.
Referring to fig. 2-3, the device for flotation provided by the invention comprises a flotation tank body 9, wherein the side wall of the flotation tank body 9 is communicated with a concentrate outlet 10 and a tailing outlet 15, a stirring shaft 11 is arranged in the flotation tank body 9, a stirring paddle 18 is fixedly arranged on the stirring shaft 11, and a flotation agent quantitative adding component 12 for quantitatively adding a flotation agent is also arranged above the flotation tank body 9; the lower end of the flotation agent storage tank 121 is also provided with an ultrasonic generator 16; the stirring shaft 11 is also fixedly provided with a receiving plate 17, the receiving plate 17 is positioned at two ends of the stirring paddle 18, the outer side of the receiving plate 17 is provided with a vertically distributed scraper 14, the scraper 14 is in sliding connection with the receiving plate 17, and the scraper 14 is in sliding connection with the receiving plate 17 and is further sleeved with a spring 13.
Specifically, flotation agent ration adds subassembly 12 includes mounting panel 124, it is provided with a row of material pipe 123 to link up on the mounting panel 124, the mounting panel 124 upper end is rotated and is connected with filling tube 122, filling tube 122 link up be provided with a plurality of with arrange the branch material chamber 125 that material pipe 123 matches, filling tube 122 upper end is rotated and is connected with flotation agent holding vessel 121, flotation agent holding vessel 121 lower extreme liquid outlet 126 in addition, liquid outlet 126 with arrange material pipe 123 dislocation set.
The flotation agent quantitative adding component 12 in the flotation device can realize the quantitative addition of the flotation agent, the feeding pipe 122 is rotated during the addition, the flotation agent in the flotation agent storage tank 121 fills the material distribution cavity 125, and then when the material distribution cavity 125 is rotated to be communicated with the discharge pipe 123, the flotation agent in the material distribution cavity 125 can enter the flotation tank body 9, so that the flotation agent quantitative adding component 12 improves the feeding precision of the flotation agent, and has simple structure and convenient operation; the ultrasonic generator 16 arranged at the lower end of the flotation tank body 9 can further improve the flotation effect; the scraper 14 arranged on the stirring shaft 11 can avoid the enrichment of materials on the side wall of the flotation tank body 9, and the waste of resources is avoided.
Example 1
The invention provides a process for efficiently recovering silver from smelting waste residues, which comprises the following steps:
s1: adding water into the smelting waste slag and grinding;
s2: filtering the slurry ground in the S1;
s3: and adding a flotation agent into the filter residue filtered by the S2 for flotation to obtain silver concentrate and tailings.
The addition amount of the flotation agent is 3kg per ton of filter residue.
The flotation agent comprises the following raw materials in parts by weight: 15 parts of N-dithiocarbazolyl formate, 15 parts of ethylene diamine phosphate, 3 parts of sodium lauryl sulfate and 3 parts of isopropanol.
The silver recovery of this scheme was 71.9%.
Example 2
The invention provides a process for efficiently recovering silver from smelting waste residues, which comprises the following steps:
s1: adding water into the smelting waste slag and grinding;
s2: filtering the slurry ground in the S1;
s3: and adding a flotation agent into the filter residue filtered by the S2 for flotation to obtain silver concentrate and tailings.
The addition amount of the flotation agent is 2kg per ton of filter residue.
The flotation agent comprises the following raw materials in parts by weight: 10 parts of N-dithiocarbazolyl formate, 10 parts of ethylene diamine phosphate, 1 part of sodium lauryl sulfate and 1 part of isopropanol.
The silver recovery of this scheme was 58.4%.
Example 3
The invention provides a process for efficiently recovering silver from smelting waste residues, which comprises the following steps:
s1: adding water into the smelting waste slag and grinding;
s2: filtering the slurry ground in the S1;
s3: and adding a flotation agent into the filter residue filtered by the S2 for flotation to obtain silver concentrate and tailings.
The addition amount of the flotation agent is 4kg per ton of filter residue.
The flotation agent comprises the following raw materials in parts by weight: 20 parts of N-dithiocarbazolyl formate, 20 parts of ethylene diamine phosphate, 5 parts of sodium lauryl sulfate and 5 parts of isopropanol.
The silver recovery of this protocol was 64.8%.
Comparative example 1
The flotation agent comprises the following raw materials in parts by weight: 25 parts of N-dithiocarbazolyl formate, 8 parts of sodium lauryl sulfate and 3 parts of isopropanol. The other conditions were the same as in example 1.
The silver recovery of this scheme was 43.2%.
Comparative example 2
The flotation agent comprises the following raw materials in parts by weight: 25 parts of ethylene diamine phosphate, 8 parts of sodium lauryl sulfate and 3 parts of isopropanol. The other conditions were the same as in example 1.
The silver recovery for this protocol was 47.5%.
Comparative example 3
The flotation agent comprises the following raw materials in parts by weight: 17 parts of N-dithiocarbazolyl formate, 16 parts of ethylene diamine phosphate and 3 parts of isopropanol. The other conditions were the same as in example 1.
The silver recovery of this scheme was 51.4%.
From example 1 and comparative examples 1 to 3, it can be seen that the N-dithiocarbazolyl formate, the ethylene diamine phosphate and the sodium lauryl sulfate in the flotation agent have a certain synergistic effect in improving the silver recovery rate, so that the process of the invention can obtain higher silver recovery rate.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A process for efficiently recovering silver from smelting waste residues is characterized by comprising the following steps:
s1: adding water into the smelting waste slag and grinding;
s2: filtering the slurry ground in the S1;
s3: and adding a flotation agent into the filter residue filtered by the S2 for flotation to obtain silver concentrate and tailings.
2. The process for efficiently recovering silver from smelting waste residues according to claim 1, wherein the addition amount of the flotation agent is 2-4kg per ton of filter residues.
3. The process for efficiently recovering silver from smelting waste residues according to claim 2, wherein the flotation agent comprises the following raw materials in parts by weight: 10-20 parts of N-dithiocarbazolyl formate, 10-20 parts of ethylene diamine phosphate, 1-5 parts of sodium lauryl sulfate and 1-5 parts of isopropanol.
4. The process for efficiently recovering silver from smelting waste residues according to claim 1, wherein the device for grinding in S1 comprises a grinding tank body, a filter screen is detachably arranged in the grinding tank body, the inner cavity of the grinding tank body is divided into a grinding cavity located above and a liquid collecting cavity located below by the filter screen, a partition plate is further horizontally distributed at the upper end/lower end of the filter screen, one end of the partition plate penetrates through the grinding tank body and is in sliding connection with the grinding tank body, a rotating shaft is arranged in the grinding cavity, a plurality of crushing knives are fixed on the rotating shaft, and a discharge pipe is communicated with one side of the liquid collecting cavity.
5. The process for efficiently recovering silver from smelting waste residues according to claim 4, wherein the angles of the upward inclination and inclination of the crushing blades decrease progressively from top to middle, and the angles of the downward inclination and inclination of the crushing blades decrease progressively from bottom to middle.
6. The process for efficiently recovering silver from smelting waste residues according to claim 1, wherein the device for flotation in S3 comprises a flotation tank body, the side wall of the flotation tank body is communicated with a concentrate outlet and a tailing outlet, a stirring shaft is arranged in the flotation tank body, a stirring paddle is fixedly arranged on the stirring shaft, and a flotation agent quantitative adding assembly for quantitatively adding a flotation agent is further arranged above the flotation tank body.
7. The process for efficiently recovering silver from smelting waste residues according to claim 6, wherein the flotation agent quantitative adding assembly comprises a mounting plate, a material discharging pipe is arranged on the mounting plate in a penetrating manner, a feeding pipe is rotatably connected to the upper end of the mounting plate, a plurality of material distributing cavities matched with the material discharging pipe are arranged in the feeding pipe in a penetrating manner, a flotation agent storage tank is rotatably connected to the upper end of the feeding pipe, a liquid outlet is arranged at the lower end of the flotation agent storage tank, and the liquid outlet and the material discharging pipe are arranged in a staggered manner.
8. The process for efficiently recovering silver from smelting waste residues according to claim 6, wherein the lower end of the flotation agent storage tank is further provided with an ultrasonic generator.
9. The process for efficiently recovering silver from smelting waste residues according to claim 6, wherein the stirring shaft is further fixedly provided with receiving plates, the receiving plates are located at two ends of the stirring paddle, the outer sides of the receiving plates are provided with vertically distributed scraping plates, the scraping plates are in sliding connection with the receiving plates, and springs are further sleeved between the scraping plates and the receiving plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111427279.8A CN114178055A (en) | 2021-11-29 | 2021-11-29 | Process for efficiently recovering silver from smelting waste residues |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111427279.8A CN114178055A (en) | 2021-11-29 | 2021-11-29 | Process for efficiently recovering silver from smelting waste residues |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114178055A true CN114178055A (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111427279.8A Pending CN114178055A (en) | 2021-11-29 | 2021-11-29 | Process for efficiently recovering silver from smelting waste residues |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5482535A (en) * | 1993-07-13 | 1996-01-09 | Metallgesellschaft Aktiengesellschaft | Process for the recovery of silver by floatation from the residue from the wet extraction of zinc |
| CN102765497A (en) * | 2012-07-19 | 2012-11-07 | 安徽同福食品有限责任公司 | Particle filling machine |
| CN205164839U (en) * | 2015-10-14 | 2016-04-20 | 云南福滋农业科技开发有限公司 | Continuous production formula indian bread reducing mechanism |
| CN105536981A (en) * | 2015-12-14 | 2016-05-04 | 灵宝金源晨光有色矿冶有限公司 | Process for recovering gold, silver and sulfur from castaway slag |
| CN107213992A (en) * | 2017-05-23 | 2017-09-29 | 西北矿冶研究院 | Copper-gold-silver ore flotation collector and flotation method |
| CN109759240A (en) * | 2018-12-10 | 2019-05-17 | 中化地质矿山总局地质研究院 | Application of emulsifier in fluorite ore dressing |
| CN112246445A (en) * | 2020-08-27 | 2021-01-22 | 中国恩菲工程技术有限公司 | Foam sorting activator and application thereof |
| CN112853115A (en) * | 2020-12-30 | 2021-05-28 | 浙江遂昌汇金有色金属有限公司 | High-efficiency gold smelting process |
| CN113210141A (en) * | 2021-04-15 | 2021-08-06 | 江苏仕能工业技术有限公司 | Mineral flotation machine of high efficiency flotation |
-
2021
- 2021-11-29 CN CN202111427279.8A patent/CN114178055A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5482535A (en) * | 1993-07-13 | 1996-01-09 | Metallgesellschaft Aktiengesellschaft | Process for the recovery of silver by floatation from the residue from the wet extraction of zinc |
| CN102765497A (en) * | 2012-07-19 | 2012-11-07 | 安徽同福食品有限责任公司 | Particle filling machine |
| CN205164839U (en) * | 2015-10-14 | 2016-04-20 | 云南福滋农业科技开发有限公司 | Continuous production formula indian bread reducing mechanism |
| CN105536981A (en) * | 2015-12-14 | 2016-05-04 | 灵宝金源晨光有色矿冶有限公司 | Process for recovering gold, silver and sulfur from castaway slag |
| CN107213992A (en) * | 2017-05-23 | 2017-09-29 | 西北矿冶研究院 | Copper-gold-silver ore flotation collector and flotation method |
| CN109759240A (en) * | 2018-12-10 | 2019-05-17 | 中化地质矿山总局地质研究院 | Application of emulsifier in fluorite ore dressing |
| CN112246445A (en) * | 2020-08-27 | 2021-01-22 | 中国恩菲工程技术有限公司 | Foam sorting activator and application thereof |
| CN112853115A (en) * | 2020-12-30 | 2021-05-28 | 浙江遂昌汇金有色金属有限公司 | High-efficiency gold smelting process |
| CN113210141A (en) * | 2021-04-15 | 2021-08-06 | 江苏仕能工业技术有限公司 | Mineral flotation machine of high efficiency flotation |
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