CN112452549A - Beneficiation method for micro-fine particle tungsten ore - Google Patents
Beneficiation method for micro-fine particle tungsten ore Download PDFInfo
- Publication number
- CN112452549A CN112452549A CN202011140250.7A CN202011140250A CN112452549A CN 112452549 A CN112452549 A CN 112452549A CN 202011140250 A CN202011140250 A CN 202011140250A CN 112452549 A CN112452549 A CN 112452549A
- Authority
- CN
- China
- Prior art keywords
- concentrate
- tailings
- dosage
- tungsten ore
- sodium alginate
- 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.)
- Granted
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
-
- 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a beneficiation method of micro-fine tungsten ore, belonging to the technical field of beneficiation. Firstly, grinding tungsten ore, then adding a mixture of regulator sodium carbonate, inhibitor sodium alginate and collector 731 oxidized paraffin soap and polyether to stir and size, and roughly selecting tungsten by using a flotation machine to obtain roughly selected concentrate and roughly selected tailings; adding sodium alginate into the roughed concentrate, carrying out five-time concentration to obtain concentrate 1, adding a mixture of 731 oxidized paraffin soap and polyether into the roughed tailings, carrying out scavenging twice, obtaining scavenged tailings, adding a regulator acidified water glass and a collector poly (N-isopropylacrylamide) into the scavenged tailings, carrying out flotation by using a flotation column, obtaining concentrate 2 and final tailings, and combining the concentrate 1 and the concentrate 2 into final concentrate. The method solves the technical problem that the micro-fine tungsten ore is difficult to effectively recover, and has important significance for realizing the high-efficiency utilization of the low-grade tungsten ore which is difficult to treat.
Description
Technical Field
The invention relates to the technical field of ore dressing, in particular to an ore dressing method for micro-fine tungsten ores.
Background
Along with the continuous development and consumption of mineral resources by human beings, ore resources rich in ores and easy to process are gradually reduced, and how to economically and efficiently utilize ores with low grade, fine embedded granularity and complex composition becomes a challenge. In order to achieve sufficient monomer dissociation of the useful minerals in refractory ores, it is often necessary to finely grind the ore. However, as the particle size decreases, the flotation behavior of the mineral particles changes, and it is very difficult to recover the useful minerals in the fine fraction by using the conventional flotation process.
The important reason why the fine fraction minerals are difficult to recover by flotation compared to the conventional fraction minerals is that the fine fraction minerals have a small mass, resulting in a small momentum of mineral particles and difficulty in overcoming the energy barrier between the mineral particles and the gas bubbles during collision and failing to adhere to the gas bubbles. In order to improve the flotation recovery rate of the fine-fraction minerals, a great deal of research is carried out by mineral separation workers, and it is found that increasing the apparent particle size of the fine-fraction minerals or reducing the size of air bubbles is an important means for improving the adhesion probability of the fine-fraction minerals and the air bubbles and increasing the flotation recovery rate of the fine-fraction minerals. Based on the above knowledge, the ore dressing workers propose techniques such as hydrophobic agglomeration separation, composite agglomeration separation, selective flocculation separation, nanobubble flotation, electrolytic flotation and the like. Although some fine mineral flotation recovery techniques are applied to individual mines, the flotation recovery problem of fine mineral is not well solved due to the defects of the techniques or the complex properties of ores.
The tungsten resource is the dominant mineral resource in China, the reserve accounts for 68 percent of the total amount of the tungsten resource in the world, and is the first in the world. However, with the rapid development of our country's economy, the disposable tungsten ore resources (easy to re-enrich wolframite) are almost exhausted. In contrast to the over-development of easily-handled resources, the development and utilization degree of complex and difficultly-handled tungsten resources (fine-grained skarn type scheelite) rich in reserves in China is very low. Because the scheelite ore is brittle and is easy to be over-crushed in the crushing and grinding process, the content of tungsten fine mud generated by the scheelite ore accounts for about 8-16% of the total treatment capacity, the tungsten fine mud is difficult to recycle under the existing ore dressing technical conditions, and in addition, the tungsten fine mud resources discarded from tailings generated by the main process of tungsten ore dressing cause that about 20% of tungsten is lost in the fine mud every year all over the world. Therefore, the new technology of tungsten fine mud flotation is developed, the high-efficiency recovery of the tungsten mineral with micro-fine particle fraction is realized, and the method has important significance for realizing the high-efficiency utilization of the low-grade tungsten ore which is difficult to process.
Disclosure of Invention
The invention aims to solve the technical problem of providing a beneficiation method of micro-fine tungsten ore, so as to solve the technical problem of beneficiation that tungsten fine mud is difficult to float efficiently.
The method comprises the following steps:
A. grinding: grinding tungsten ore to-0.074 mm granularity level content of 75-85%;
B. b, adding a regulator sodium carbonate, an inhibitor sodium alginate and a collecting agent into the ore pulp obtained by grinding in the step A in sequence, and stirring and mixing the mixture;
C. b, roughly selecting tungsten from the ore pulp stirred in the step B by using a flotation machine to obtain roughly selected concentrate and roughly selected tailings;
D. adding sodium alginate into the rough concentration obtained in the step C, and carrying out five times of concentration by using a flotation machine to obtain a concentrate 1, and returning the sequence of the concentrated middlings to the previous stage of operation;
E. c, adding a collecting agent into the roughed tailings obtained in the step C, carrying out scavenging twice by using a flotation machine to obtain scavenged tailings, and returning the scavenged middlings to the previous stage operation in sequence;
F. and E, adding a regulator acidified water glass and a collector poly (N-isopropylacrylamide) into the scavenged tailings obtained in the step E, heating to 40-50 ℃, stirring for 5-10min, performing flotation by using a flotation column to obtain a concentrate 2 and a final tailing, and combining the concentrate 1 and the concentrate 2 into a final concentrate.
Wherein, the collecting agent in the step B is a mixture of 731 oxidized paraffin soap and polyether, the dosage of sodium carbonate is 1500g/t, the dosage of the inhibitor sodium alginate is 400g/t, and the dosage of the collecting agent mixture is 150 g/t.
Wherein the mass ratio of the 731 oxidized paraffin soap to the polyether is 3: 1.
In the step D, the dosage of the sodium alginate added in the first selection is 200g/t, the dosage of the sodium alginate added in the second selection is 50-100g/t, the dosage of the sodium alginate added in the third selection is 30-50g/t, the dosage of the sodium alginate added in the fourth selection is 30-50g/t, and no drug is added in the fifth selection.
And E, the dosage of the collecting agent added in the first scavenging is 50-80g/t, and the dosage of the collecting agent added in the second scavenging is 30-40 g/t.
The dosage of the acidified water glass in the step F is 1000-2000g/t, and the dosage of the poly (N-isopropylacrylamide) is 80-100 g/t.
And F, adding sulfuric acid into the acidified water glass to prepare the acidified water glass, wherein the pH value of the acidified water glass is 3-5 by using the amount of the sulfuric acid.
The technical scheme of the invention has the following beneficial effects:
according to the scheme, high molecular organic matter sodium alginate is used as an inhibitor, a mixture of 731 oxidized paraffin soap and polyether is used as a collecting agent to float tungsten minerals with thicker granularity, then temperature-sensitive poly (N-isopropylacrylamide) is added into tailings to be used as the collecting agent, the agent can be separated out from a solution under the condition of temperature rise, the advantage of higher adsorption capacity on the surface of the tungsten minerals is utilized, the surface hydrophobicity of the micro-fine tungsten minerals is enhanced, and the micro-fine tungsten minerals are agglomerated, so that the mineral separation index of the micro-fine tungsten minerals is improved.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description is given with reference to specific embodiments.
The invention provides a beneficiation method of micro-fine tungsten ore.
The method comprises the following steps:
A. grinding: grinding tungsten ore to-0.074 mm granularity level content of 75-85%;
B. b, adding a regulator sodium carbonate, an inhibitor sodium alginate and a collecting agent into the ore pulp obtained by grinding in the step A in sequence, and stirring and mixing the mixture;
C. b, roughly selecting tungsten from the ore pulp stirred in the step B by using a flotation machine to obtain roughly selected concentrate and roughly selected tailings;
D. adding sodium alginate into the rough concentration obtained in the step C, and carrying out five times of concentration by using a flotation machine to obtain a concentrate 1, and returning the sequence of the concentrated middlings to the previous stage of operation;
E. c, adding a collecting agent into the roughed tailings obtained in the step C, carrying out scavenging twice by using a flotation machine to obtain scavenged tailings, and returning the scavenged middlings to the previous stage operation in sequence;
F. and E, adding a regulator acidified water glass and a collector poly (N-isopropylacrylamide) into the scavenged tailings obtained in the step E, heating to 40-50 ℃, stirring for 5-10min, performing flotation by using a flotation column to obtain a concentrate 2 and a final tailing, and combining the concentrate 1 and the concentrate 2 into a final concentrate.
The following description is given with reference to specific examples.
Example 1
Grinding tungsten ore to 85% of-0.074 mm, adding 1500g/t sodium carbonate, 400g/t inhibitor sodium alginate, 150g/t 731 oxidized paraffin soap and polyether mixture, mixing, and performing flotation roughing to obtain roughed concentrate and roughed tailings. Adding inhibitor sodium alginate into the rough concentration concentrate for 5 times of concentration to obtain concentrate 1, wherein the inhibitor dosage of the rough concentration 1 is 200g/t, the inhibitor dosage of the fine concentration 2 is 100g/t, the inhibitor dosage of the fine concentration 3 is 50g/t, the inhibitor dosage of the fine concentration 4 is 50g/t, no drug is added into the fine concentration 5, and the middlings in the fine concentration are returned in sequence. Adding 80g/t of collecting agent 731 oxidized paraffin soap and polyether mixture into roughing tailings for first scavenging, adding 40g/t of collecting agent 731 oxidized paraffin soap and polyether mixture into scavenging tailings for second scavenging to obtain scavenging tailings, and returning scavenging middlings in sequence. Adding 2000g/t of acidified water glass serving as a regulator and 100g/t of poly (N-isopropylacrylamide) serving as a collector into scavenged tailings, heating to 45 ℃, stirring for 10min, performing flotation to obtain concentrate 2 and final tailings, and combining the concentrate 1 and the concentrate 2 into final concentrate.
The results of the beneficiation tests are shown in the following table.
Index of flotation test (wt%)
Example 2
Grinding tungsten ore to 75% of-0.074 mm, adding 1000g/t sodium carbonate, 200g/t inhibitor sodium alginate, 120g/t 731 oxidized paraffin soap and polyether mixture, stirring, and performing flotation roughing to obtain roughed concentrate and roughed tailings. Adding inhibitor sodium alginate into the rough concentration concentrate for 5 times of concentration to obtain concentrate 1, wherein the inhibitor dosage of the rough concentration 1 is 100g/t, the inhibitor dosage of the fine concentration 2 is 50g/t, the inhibitor dosage of the fine concentration 3 is 30g/t, the inhibitor dosage of the fine concentration 4 is 30g/t, no drug is added into the fine concentration 5, and the middlings in the fine concentration are returned in sequence. Adding 50g/t of collecting agent 731 oxidized paraffin soap and polyether mixture into roughing tailings for first scavenging, adding 30g/t of collecting agent 731 oxidized paraffin soap and polyether mixture into scavenging tailings for second scavenging to obtain scavenging tailings, and returning scavenging middlings in sequence. Adding 1200g/t of acidified water glass serving as a regulator and 80g/t of poly (N-isopropylacrylamide) serving as a collecting agent into scavenged tailings, heating to 50 ℃, stirring for 10min, performing flotation to obtain concentrate 2 and final tailings, and combining the concentrate 1 and the concentrate 2 into final concentrate.
The results of the beneficiation tests are shown in the following table.
Index of flotation test (wt%)
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A beneficiation method of micro-fine particle tungsten ore is characterized in that: the method comprises the following steps:
A. grinding: grinding tungsten ore to-0.074 mm granularity level content of 75-85%;
B. b, adding a regulator sodium carbonate, an inhibitor sodium alginate and a collecting agent into the ore pulp obtained by grinding in the step A in sequence, and stirring and mixing the mixture;
C. b, roughly selecting tungsten from the ore pulp stirred in the step B by using a flotation machine to obtain roughly selected concentrate and roughly selected tailings;
D. adding sodium alginate into the rough concentration obtained in the step C, and carrying out five times of concentration by using a flotation machine to obtain a concentrate 1, and returning the sequence of the concentrated middlings to the previous stage of operation;
E. c, adding a collecting agent into the roughed tailings obtained in the step C, carrying out scavenging twice by using a flotation machine to obtain scavenged tailings, and returning the scavenged middlings to the previous stage operation in sequence;
F. and E, adding a regulator acidified water glass and a collector poly (N-isopropylacrylamide) into the scavenged tailings obtained in the step E, heating to 40-50 ℃, stirring for 5-10min, performing flotation by using a flotation column to obtain a concentrate 2 and a final tailing, and combining the concentrate 1 and the concentrate 2 into a final concentrate.
2. The beneficiation method for fine tungsten ore according to claim 1, characterized in that: in the step B, the collecting agent is a mixture of 731 oxidized paraffin soap and polyether, the using amount of sodium carbonate is 1500g/t, the using amount of inhibitor sodium alginate is 400g/t and the using amount of the collecting agent mixture is 150 g/t.
3. The beneficiation method for fine tungsten ore according to claim 2, characterized in that: the mass ratio of the 731 oxidized paraffin soap to the polyether is 3: 1.
4. The beneficiation method for fine tungsten ore according to claim 1, characterized in that: in the step D, the dosage of the sodium alginate added in the first selection is 200g/t, the dosage of the sodium alginate added in the second selection is 50-100g/t, the dosage of the sodium alginate added in the third selection is 30-50g/t, the dosage of the sodium alginate added in the fourth selection is 30-50g/t, and no drug is added in the fifth selection.
5. The beneficiation method for fine tungsten ore according to claim 1, characterized in that: and E, the dosage of the collecting agent added in the first scavenging in the step E is 50-80g/t, and the dosage of the collecting agent added in the second scavenging is 30-40 g/t.
6. The beneficiation method for fine tungsten ore according to claim 1, characterized in that: the dosage of the acidified water glass in the step F is 1000-2000g/t, and the dosage of the poly (N-isopropylacrylamide) is 80-100 g/t.
7. The beneficiation method for fine tungsten ore according to claim 1, characterized in that: and F, adding sulfuric acid into the acidified water glass to prepare the acidified water glass, wherein the pH value of the acidified water glass is 3-5 by using the amount of the sulfuric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011140250.7A CN112452549B (en) | 2020-10-22 | 2020-10-22 | Beneficiation method for micro-fine particle tungsten ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011140250.7A CN112452549B (en) | 2020-10-22 | 2020-10-22 | Beneficiation method for micro-fine particle tungsten ore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112452549A true CN112452549A (en) | 2021-03-09 |
| CN112452549B CN112452549B (en) | 2022-03-18 |
Family
ID=74834100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011140250.7A Active CN112452549B (en) | 2020-10-22 | 2020-10-22 | Beneficiation method for micro-fine particle tungsten ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112452549B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115646657A (en) * | 2022-11-01 | 2023-01-31 | 昆明理工大学 | Scheelite and calcium-containing gangue separation inhibitor and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD150155A1 (en) * | 1980-04-28 | 1981-08-19 | Heinrich Schubert | METHOD FOR FLOTATIVELY OBTAINING FLUORITE |
| CN104128251A (en) * | 2014-07-24 | 2014-11-05 | 江西理工大学 | Beneficiation method of tungsten fine silt |
| KR101576928B1 (en) * | 2014-07-14 | 2015-12-14 | 한국지질자원연구원 | Beneficiation method of high grade scheelite ore by preprocessing |
| CN106000655A (en) * | 2016-06-08 | 2016-10-12 | 江西理工大学 | Method for selecting scheelite at normal temperature |
| CN107583769A (en) * | 2016-07-06 | 2018-01-16 | 长春黄金研究院 | A kind of method that flotation tailing normal temperature selects tungsten |
| CN107638949A (en) * | 2017-09-29 | 2018-01-30 | 江西理工大学 | Application of the cation etherification starch in Scheelite Flotation |
| CN110038718A (en) * | 2019-04-19 | 2019-07-23 | 赣州金环磁选设备有限公司 | A kind of new process using centrifuge and flotation efficient separation microfine tungsten ore |
| CN110479494A (en) * | 2019-08-19 | 2019-11-22 | 洛阳豫鹭矿业有限责任公司 | A kind of method for concentrating promoting low-grade scheelite Floatation Concentrate Grade |
-
2020
- 2020-10-22 CN CN202011140250.7A patent/CN112452549B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD150155A1 (en) * | 1980-04-28 | 1981-08-19 | Heinrich Schubert | METHOD FOR FLOTATIVELY OBTAINING FLUORITE |
| KR101576928B1 (en) * | 2014-07-14 | 2015-12-14 | 한국지질자원연구원 | Beneficiation method of high grade scheelite ore by preprocessing |
| CN104128251A (en) * | 2014-07-24 | 2014-11-05 | 江西理工大学 | Beneficiation method of tungsten fine silt |
| CN106000655A (en) * | 2016-06-08 | 2016-10-12 | 江西理工大学 | Method for selecting scheelite at normal temperature |
| CN107583769A (en) * | 2016-07-06 | 2018-01-16 | 长春黄金研究院 | A kind of method that flotation tailing normal temperature selects tungsten |
| CN107638949A (en) * | 2017-09-29 | 2018-01-30 | 江西理工大学 | Application of the cation etherification starch in Scheelite Flotation |
| CN110038718A (en) * | 2019-04-19 | 2019-07-23 | 赣州金环磁选设备有限公司 | A kind of new process using centrifuge and flotation efficient separation microfine tungsten ore |
| CN110479494A (en) * | 2019-08-19 | 2019-11-22 | 洛阳豫鹭矿业有限责任公司 | A kind of method for concentrating promoting low-grade scheelite Floatation Concentrate Grade |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115646657A (en) * | 2022-11-01 | 2023-01-31 | 昆明理工大学 | Scheelite and calcium-containing gangue separation inhibitor and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112452549B (en) | 2022-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021037242A1 (en) | Pyrrhotite mineral processing method using low-alkali process of magnetic separation followed by flotation | |
| CN105750093B (en) | A kind of method for floating of cupric oxide ore | |
| CN104148163B (en) | A kind of beneficiation method processing low-grade tin-lead-zinc multi-metal oxygen ore deposit | |
| CN103143447B (en) | Beneficiation method of high-oxygenation-efficiency complicated copper ore containing co-associated metal | |
| CN107081220B (en) | Method for improving enrichment effect of molybdenum oxide in scheelite flotation concentrate | |
| CN110681477B (en) | Dressing and smelting combined treatment method for recovering complex copper oxide ore | |
| CN113976307A (en) | Flotation separation method of refractory lead-zinc sulfide ore and zinc blende inhibitor thereof | |
| CN104815746A (en) | Recovery method of high-iron highly-argillaceous alkaline gangue refractory oxide copper ore | |
| CN112452549B (en) | Beneficiation method for micro-fine particle tungsten ore | |
| CN115780067A (en) | Efficient utilization method of micro-fine particle refractory weathered scheelite | |
| CN113856911B (en) | Beneficiation method for high-sulfur copper gold and silver ore | |
| CN111530639A (en) | Micro-fine particle zinc oxide ore copper ammonia complex gradient activation-enhanced vulcanization flotation method | |
| CN113102115A (en) | Beneficiation process for zinc mineral in low-grade lead-zinc sulfide ore and inhibitor thereof | |
| CN113233426A (en) | Method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag | |
| CN110064512B (en) | Method for controlling oxidation-flotation recovery of copper ore | |
| CN115318448B (en) | Zinc oxide ore high entropy activation flotation method | |
| CN116174151A (en) | Cooperative recovery method for high-sulfur Gao Tiefu silver copper lead zinc ore | |
| CN112742606B (en) | Novel pyrrhotite composite activation agent and application thereof | |
| CN110586335A (en) | High-alkali magnetic-first-floating-later-magnetic pyrite beneficiation method | |
| CN109078760B (en) | Method for improving flotation recovery rate of micro-fine-particle copper sulfide ore by using magnetic hydrophobic particles | |
| CN109078761B (en) | Method for reinforcing flotation of refractory nickel sulfide ore by using magnetic hydrophobic particles | |
| CN111632748A (en) | Mineral separation method for improving zinc concentrate grade by using magnetic-floating combined process | |
| CN115318449B (en) | High-entropy collection flotation method for low-grade zinc oxide ores | |
| CN113414009B (en) | Flotation method for crude ore containing filler specularite | |
| CN113751204A (en) | Collecting agent applied to flotation of quartzite type zinc oxide ores and calamine flotation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |