CN115318448B - Zinc oxide ore high entropy activation flotation method - Google Patents
Zinc oxide ore high entropy activation flotation method Download PDFInfo
- Publication number
- CN115318448B CN115318448B CN202211061995.3A CN202211061995A CN115318448B CN 115318448 B CN115318448 B CN 115318448B CN 202211061995 A CN202211061995 A CN 202211061995A CN 115318448 B CN115318448 B CN 115318448B
- Authority
- CN
- China
- Prior art keywords
- zinc oxide
- ore
- flotation
- entropy
- low
- 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.)
- Active
Links
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
- B03D1/02—Froth-flotation processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- 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
- B03D2203/04—Non-sulfide 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention relates to a high-entropy activation flotation method for zinc oxide ores, and belongs to the technical field of ore dressing. Aiming at zinc oxide ores with low grade, high oxidation rate and zinc oxide ores mainly comprising siderite and calamine, the invention inhibits gangue minerals through high-concentration vulcanization and multi-component inhibitors, and the zinc oxide minerals after the vulcanization are activated by multi-metal ions with high entropy, so that the stable multi-metal sulfide surface is obtained, and then the zinc oxide ores are collected by adopting a long-chain xanthate collector, so that the high recovery rate of the zinc oxide ores is obtained. The gangue is fully inhibited, the zinc oxide minerals are well activated, and compared with the sulfide-amine method flotation and the sulfide-xanthate method flotation, the method has the advantages of low medicament consumption, easy control of the production process and remarkable improvement of the flotation recycling efficiency of the low-grade zinc oxide ores.
Description
Technical Field
The invention relates to a high-entropy activation flotation method for zinc oxide ores, and belongs to the technical field of ore dressing.
Background
The zinc oxide ore beneficiation and recovery difficulty is great, the beneficiation recovery rate is low, no effective beneficiation method is applied to industry, and the efficient utilization of the zinc oxide ore resources is always a hot problem of research of beneficiation workers at present of zinc ore resource shortage.
Zinc oxide ores, including calamine, willemite, hydrozincite and the like, are zinc ores with relatively complex components and structures, and are easy to cause mud in the treatment process. The zinc oxide ore dressing adopts a flotation method, and at present, six flotation technologies commonly used for zinc oxide ores are respectively as follows: sulfide-amine flotation, sulfide-xanthate flotation, reverse flotation, direct fatty acid flotation, flocculation flotation, chelate flotation, and the like.
The sulfide-amine floatation method is to firstly sulfide zinc oxide ore by a vulcanizing agent and then sort by using an aliphatic amine collector. The sulfuration-amine floatation process is sensitive to mineral mud and soluble salt, the consumption of a sulfuration agent is large, most zinc oxide ores have the characteristics of serious mud formation and more soluble salt, and although the method has good effect in a laboratory, a large amount of foam is generated in industry to cause that the production cannot be normally carried out, so far, the method has not been widely applied to industrialization.
When zinc oxide ore is selected by the sulfuration-xanthate flotation method, the zinc oxide ore is sulfurated, then is further activated by copper sulfate, and then is collected by the advanced xanthate. Because the normal temperature vulcanizing effect is poor, the method needs to be heated in the vulcanizing process. However, even in the case of heating and vulcanizing, the recovery rate of flotation is relatively low, and is generally difficult to exceed 70%
The reverse flotation method is to adjust the pH value to about 7, inhibit zinc oxide minerals in the zinc oxide rough concentrate by starch and the like, and remove gangue minerals by reverse flotation. The method can effectively remove most carbonate, sulfate and iron gangue minerals (such as mica, sericite, chlorite, etc.). However, this method is not ideal when applied to the flotation of raw ores.
The fatty acid floatation method is to directly sort the zinc oxide ore by utilizing a fatty acid collector. The process has a certain flotation effect on zinc oxide ores containing siliceous gangue or argillaceous gangue minerals. But the flotation effect on zinc oxide ores containing carbonate gangue minerals is not good, and the flotation effect on zinc oxide ores with high iron content is also not ideal. The method is not industrially popularized and applied because of the poor selectivity to most ores.
The chelate flotation method is a method for collecting hydrozincite and gangue minerals by using a chelate collector. The flotation technology has good selectivity and collection performance. However, when the chelating agent is expensive and is used as a collector alone, the chelating agent is not widely applied to production practice at present because the mineral surface is not strong enough in hydrophobicity and needs to be used in a large amount.
In the process method for recovering zinc from the low-grade zinc oxide ore, alkaline solution is adopted to adjust the pH value of glycine leaching agent, so that zinc in the zinc oxide ore is selectively leached, and the selective leaching and recovery of zinc in the low-grade zinc oxide ore can be realized. However, the leaching agent consumption of the method is high, the cost is high, the tailings are difficult to treat, and the industrial application is limited. Aiming at the problems of poor sulfuration effect, difficult stable adsorption of a collector, unsatisfactory floatation indexes and the like of a direct sulfuration floatation method, a combination regulator is added into ore pulp to control ore slime, then a novel activator copper ammonia complex is added into the ore pulp for primary activation, a combination vulcanizing agent is added into the ore pulp for surface strengthening sulfuration after the activation, the copper ammonia complex is added into the ore pulp for secondary activation after strengthening sulfuration, and finally the combination collector and a foaming agent are sequentially added into the ore pulp for floatation to recycle zinc minerals in the ore. However, the method still cannot meet the industrial requirements for the flotation recovery rate of the complex zinc oxide ore with high mud content.
The ammonia leaching can recycle zinc in zinc oxide ore, but the ammonia consumption, the recycling cost and the tailing containing ammonia are difficult to treat, and have adverse effects on the environment. Ammonia leaching can achieve a higher leaching rate in the laboratory, but is of limited industrial application.
The acid leaching can recycle zinc in zinc oxide ore, but a large amount of carbonate minerals consume a large amount of sulfuric acid, and simultaneously generate a large amount of carbon dioxide, so that the acid wastewater and tailings are difficult to treat, pollute the environment and limit the industrial application of the method.
The low-grade zinc oxide ore is directly subjected to high-temperature reduction roasting, zinc is recovered by volatilizing zinc oxide powder, and high recovery rate can be obtained, but the low-grade zinc oxide ore has high energy consumption, high cost and unreasonable economy, and cannot be widely applied to industry under the current low-carbon and low-energy consumption backgrounds.
Based on the analysis, the beneficiation and recovery of the low-grade zinc oxide ore are still a resource recycling problem to be solved urgently. Despite decades of research directed at this problem, no breakthrough progress has been made.
Disclosure of Invention
Aiming at low-grade zinc oxide ores mainly comprising siderite and heteropolar ores, the invention provides a high-entropy activation flotation method for the zinc oxide ores, wherein gangue minerals are restrained by high-concentration vulcanization and multi-component inhibitors, and the zinc oxide minerals after the vulcanization are activated by multi-metal ions with high entropy, so that stable multi-metal sulfide surfaces are obtained, and then long-chain xanthate collectors are adopted for collecting, so that the high recovery rate of the zinc oxide ores is obtained; the gangue is fully inhibited, the zinc oxide minerals are well activated, and compared with the sulfide-amine method flotation and the sulfide-xanthate method flotation, the method has the advantages of low medicament consumption, easy control of the production process and remarkable improvement of the flotation recovery and utilization efficiency of the low-grade zinc oxide ores.
A zinc oxide ore high entropy activation flotation method comprises the following specific steps:
(1) Uniformly mixing lead nitrate, copper nitrate, mercury nitrate and silver nitrate to form a zinc oxide ore high-entropy activator A;
(2) Uniformly mixing water glass, sodium hexametaphosphate and tannin to form gangue mineral combination inhibitor B;
(3) Grinding the low-grade zinc oxide ore until more than 80% of monomers in the zinc oxide ore are dissociated to obtain grinding ore pulp, adding a vulcanizing agent into the grinding ore pulp with the mass concentration of 50-60%, and stirring and reacting for 4-6 min to obtain ore pulp I;
(4) Diluting the ore pulp I to the mass concentration of 25-30%, adding gangue mineral combination inhibitor B, and stirring for reaction for 3-4 min to obtain ore pulp II;
(5) Adding a zinc oxide ore high-entropy activator A into the ore pulp II, and stirring and reacting for 4-5 min to obtain ore pulp III;
(6) Adding a long-chain xanthate collecting agent and a foaming agent into the ore pulp III, and stirring and reacting for 3-4 min to obtain ore pulp IV;
(7) And (3) carrying out primary roughing, secondary concentration and tertiary scavenging on the ore pulp IV to obtain zinc concentrate and tailings.
The mass ratio of the lead nitrate, the copper nitrate, the mercury nitrate and the silver nitrate in the step (1) is 1:1:0.1-0.2:0.01-0.02.
The mass ratio of the water glass to the sodium hexametaphosphate to the tannin in the step (2) is 1:1:0.5-0.7.
Zinc in the low-grade zinc oxide ore in the step (3) is 4-8 wt.%, wherein the zinc oxidation rate is 65-90%, and the mass percentage of the siderite and the calamine to the zinc oxide ore is more than 90%; the addition amount of the vulcanizing agent is 3000-5000 g/t based on the low-grade zinc oxide ore.
Preferably, the vulcanizing agent is sodium sulfide or sodium hydrosulfide.
And (3) calculating the addition amount of the gangue mineral combination inhibitor B in the step (4) by using low-grade zinc oxide ore, wherein the addition amount of the gangue mineral combination inhibitor B is 500-800 g/t.
And (3) counting the low-grade zinc oxide ore, wherein the adding amount of the zinc oxide ore high-entropy activator A in the step (5) is 800-1000 g/t.
And (3) calculating the low-grade zinc oxide ore, wherein the adding amount of the long-chain xanthate collecting agent in the step (6) is 700-900 g/t, and the adding amount of the foaming agent is 30-50 g/t.
Preferably, the long-chain xanthate collector is sec-octyl xanthate and/or isopentyl xanthate, and the foaming agent is terpineol oil or No. 2 oil.
High entropy activation flotation principle of zinc oxide ore
After the surface of zinc oxide mineral is vulcanized, the surface activation entropy change formed by the activation of multi-metal ions is as follows:
wherein: ΔS a Activating entropy change for the surface of zinc oxide minerals; r is a gas constant; n is n i The molar concentration of the i-th activating component on the surface of the zinc oxide mineral is expressed in decimal.
For the surface of zinc oxide after vulcanization, only one sulfide is zinc sulfide, i=1, at the moment, the surface activation entropy change is equal to zero, minerals are not activated, and the flotation effect of the xanthate collector cannot be optimized. When the high-entropy activator A of zinc oxide ore is used, assuming that all zinc components on the surface are replaced by activator metal ions, 4 kinds of sulfides on the zinc oxide surface can be calculated by measuring the adsorption amount of various metal ions on the surface. Obviously, after the high-entropy activator A is activated, the surface activation entropy of the zinc oxide minerals is greatly improved, which is favorable for the adsorption of xanthate collectors, and the flotation recovery rate of the zinc oxide minerals can be remarkably improved.
The beneficial effects of the invention are as follows:
(1) The high entropy activation of the invention enables the entropy change in the activation process to reach a larger value, so that the polymetallic sulfide on the surface of the zinc oxide mineral is more stable, which is favorable for the adsorption of xanthate collectors, and compared with the single use of copper or lead ion activation, the recovery rate of the zinc oxide mineral is obviously improved;
(2) The high-concentration vulcanizing of the ore pulp improves the concentration of the vulcanizing agent and realizes the normal-temperature vulcanizing of the zinc oxide ore;
(3) The high entropy activated flotation of the invention obviously reduces the dosage of vulcanizing agent and reduces the dosage of activating agent. Compared with the sulfuration-xanthate flotation method, the recovery rate of zinc oxide minerals is obviously improved under the normal temperature condition, and the high-efficiency recovery and utilization of low-grade zinc oxide ores can be realized.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
It will be appreciated by those skilled in the art that the following examples are illustrative of the present invention and should not be construed as limiting the scope of the invention. The specific techniques or conditions are not identified in the examples and are performed according to techniques or conditions described in the literature in this field or according to the product specifications. The reagents or apparatus used were conventional products available commercially without the manufacturer's attention.
Example 1: a zinc oxide ore high entropy activation flotation method (see figure 1) comprises the following specific steps:
(1) Uniformly mixing lead nitrate, copper nitrate, mercury nitrate and silver nitrate to form a zinc oxide ore high-entropy activator A; wherein the mass ratio of the lead nitrate to the copper nitrate to the mercury nitrate to the silver nitrate is 1:1:0.1:0.01;
(2) Uniformly mixing water glass, sodium hexametaphosphate and tannin to form gangue mineral combination inhibitor B; wherein the mass ratio of the water glass to the sodium hexametaphosphate to the tannin is 1:1:0.5;
(3) Grinding the low-grade zinc oxide ore until more than 80% of monomers in the zinc oxide ore are dissociated to obtain grinding ore pulp, adding a vulcanizing agent (sodium sulfide) into the grinding ore pulp with the mass concentration of 60%, and stirring and reacting for 4min to obtain ore pulp I; zinc in the low-grade zinc oxide ore is 4 wt%, wherein the zinc oxidation rate is 65%, and the mass percentage of the siderite and the heteropolar ore is more than 90%; the adding amount of the vulcanizing agent (sodium sulfide) is 3000g/t calculated by the low-grade zinc oxide ore;
(4) Diluting the ore pulp I to 30% of mass concentration, adding gangue mineral combination inhibitor B, and stirring for reaction for 3min to obtain ore pulp II; the addition amount of the gangue mineral combination inhibitor B is 500g/t calculated by the low-grade zinc oxide ore;
(5) Adding a zinc oxide ore high-entropy activator A into the ore pulp II, and stirring and reacting for 5min to obtain ore pulp III; the adding amount of the zinc oxide ore high entropy activator A in the step (5) is 800g/t based on the low-grade zinc oxide ore;
(6) Adding a long-chain xanthate collector (sec-octyl xanthate) and a foaming agent (terpineol oil) into the ore pulp III, and stirring and reacting for 3min to obtain ore pulp IV; the addition amount of the long-chain xanthate collector (sec-octyl xanthate) in the step (6) is 700g/t and the addition amount of the foaming agent (pinitol oil) is 30g/t based on the low-grade zinc oxide ore;
(7) The ore pulp IV is moved into a flotation machine, and zinc concentrate and tailings are obtained through primary roughing, secondary concentration and tertiary scavenging;
the zinc concentrate of the embodiment has a zinc grade of 25.2% and a zinc recovery rate of 81%.
Example 2: a zinc oxide ore high entropy activation flotation method (see figure 1) comprises the following specific steps:
(1) Uniformly mixing lead nitrate, copper nitrate, mercury nitrate and silver nitrate to form a zinc oxide ore high-entropy activator A; wherein the mass ratio of the lead nitrate to the copper nitrate to the mercury nitrate to the silver nitrate is 1:1:0.15:0.015;
(2) Uniformly mixing water glass, sodium hexametaphosphate and tannin to form gangue mineral combination inhibitor B; wherein the mass ratio of the water glass to the sodium hexametaphosphate to the tannin is 1:1:0.6;
(3) Grinding the low-grade zinc oxide ore until more than 80% of monomers in the zinc oxide ore are dissociated to obtain grinding ore pulp, adding a vulcanizing agent (sodium hydrosulfide) into the grinding ore pulp with the mass concentration of 55%, and stirring and reacting for 5min to obtain ore pulp I; zinc 6wt.% of the low-grade zinc oxide ore, wherein the zinc oxidation rate is 70%, and the mass percentage of the siderite and the calamine to the zinc oxide ore is more than 90%; the addition amount of the vulcanizing agent (sodium hydrosulfide) is 4000g/t calculated by the low-grade zinc oxide ore;
(4) Diluting the ore pulp I to 28% of mass concentration, adding gangue mineral combination inhibitor B, and stirring for reacting for 4min to obtain ore pulp II; the addition amount of the gangue mineral combination inhibitor B is 600g/t calculated by the low-grade zinc oxide ore;
(5) Adding a zinc oxide ore high-entropy activator A into the ore pulp II, and stirring and reacting for 4min to obtain ore pulp III; the adding amount of the zinc oxide ore high entropy activator A in the step (5) is 900g/t based on the low-grade zinc oxide ore;
(6) Adding a long-chain xanthate collector (sec-octyl xanthate and isopentyl xanthate) and a foaming agent (No. two oil) into the ore pulp III, and stirring and reacting for 4min to obtain ore pulp IV; the addition amount of the long-chain xanthate collector (sec-octyl xanthate) in the step (6) is 500g/t, the addition amount of the long-chain xanthate collector (isopentyl xanthate) is 400g/t, and the addition amount of the foaming agent (No. two oil) is 40g/t;
(7) The ore pulp IV is subjected to primary roughing, secondary concentration and tertiary scavenging to obtain zinc concentrate and tailings;
the zinc concentrate of the embodiment has a zinc grade of 28.4% and a zinc recovery rate of 81.1%.
Example 3: a zinc oxide ore high entropy activation flotation method (see figure 1) comprises the following specific steps:
(1) Uniformly mixing lead nitrate, copper nitrate, mercury nitrate and silver nitrate to form a zinc oxide ore high-entropy activator A; wherein the mass ratio of the lead nitrate to the copper nitrate to the mercury nitrate to the silver nitrate is 1:1:0.2:0.02;
(2) Uniformly mixing water glass, sodium hexametaphosphate and tannin to form gangue mineral combination inhibitor B; wherein the mass ratio of the water glass to the sodium hexametaphosphate to the tannin is 1:1:0.7;
(3) Grinding the low-grade zinc oxide ore until more than 80% of monomers in the zinc oxide ore are dissociated to obtain grinding ore pulp, adding a vulcanizing agent (sodium sulfide) into the grinding ore pulp with the mass concentration of 50%, and stirring and reacting for 6min to obtain ore pulp I; the low-grade zinc oxide ore contains 8wt.% zinc, wherein the zinc oxidation rate is 90%, and the mass percentage of the siderite and the heteropolar ore is more than 90%; the addition amount of the vulcanizing agent (sodium sulfide) is 5000g/t based on the low-grade zinc oxide ore;
(4) Diluting the ore pulp I to 30% of mass concentration, adding gangue mineral combination inhibitor B, and stirring for reaction for 3min to obtain ore pulp II; the addition amount of the gangue mineral combination inhibitor B is 800g/t calculated by the low-grade zinc oxide ore;
(5) Adding a zinc oxide ore high-entropy activator A into the ore pulp II, and stirring and reacting for 5min to obtain ore pulp III; the adding amount of the zinc oxide ore high entropy activator A in the step (5) is 1000g/t based on the low-grade zinc oxide ore;
(6) Adding a long-chain xanthate collector (sec-octyl xanthate and isopentyl xanthate) and a foaming agent (No. two oil) into the ore pulp III, and stirring and reacting for 3min to obtain ore pulp IV; the addition amount of the long-chain xanthate collector (sec-octyl xanthate) in the step (6) is 300g/t, the addition amount of the long-chain xanthate collector (isopentyl xanthate) is 600g/t, and the addition amount of the foaming agent (No. two oil) is 50g/t;
(7) The ore pulp IV is subjected to primary roughing, secondary concentration and tertiary scavenging to obtain zinc concentrate and tailings;
the zinc concentrate of the embodiment has a zinc grade of 30.6% and a zinc recovery rate of 84.6%.
While the specific embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. A zinc oxide ore high entropy activation flotation method is characterized in that: the method comprises the following specific steps:
(1) Uniformly mixing lead nitrate, copper nitrate, mercury nitrate and silver nitrate to form a zinc oxide ore high-entropy activator A;
(2) Uniformly mixing water glass, sodium hexametaphosphate and tannin to form gangue mineral combination inhibitor B;
(3) Grinding the low-grade zinc oxide ore until more than 80% of monomers in the zinc oxide ore are dissociated to obtain grinding ore pulp, adding a vulcanizing agent into the grinding ore pulp with the mass concentration of 50-60%, and stirring and reacting for 4-6 min to obtain ore pulp I; zinc in the low-grade zinc oxide ore is 4-8 wt%, wherein the zinc oxidation rate is 65-90%, and the mass percentage of the siderite and the calamine to the zinc oxide ore is more than 90%;
(4) Diluting the ore pulp I to the mass concentration of 25-30%, adding gangue mineral combination inhibitor B, and stirring for reaction for 3-4 min to obtain ore pulp II;
(5) Adding a zinc oxide ore high-entropy activator A into the ore pulp II, and stirring and reacting for 4-5 min to obtain ore pulp III;
(6) Adding a long-chain xanthate collecting agent and a foaming agent into the ore pulp III, and stirring and reacting for 3-4 min to obtain ore pulp IV;
(7) And (3) carrying out primary roughing, secondary concentration and tertiary scavenging on the ore pulp IV to obtain zinc concentrate and tailings.
2. The method for high entropy activation flotation of zinc oxide ores according to claim 1, wherein: and (3) the mass ratio of the lead nitrate to the copper nitrate to the mercury nitrate to the silver nitrate in the step (1) is 1:1:0.1-0.2:0.01-0.02.
3. The method for high entropy activation flotation of zinc oxide ores according to claim 1, wherein: and (2) the mass ratio of the water glass to the sodium hexametaphosphate to the tannin is 1:1:0.5-0.7.
4. The method for high entropy activation flotation of zinc oxide ores according to claim 1, wherein: and (3) calculating the addition amount of the vulcanizing agent of 3000-5000 g/t by using low-grade zinc oxide ore.
5. The method for high entropy activation and flotation of zinc oxide ores according to claim 1 or 4, wherein: the vulcanizing agent is sodium sulfide or sodium hydrosulfide.
6. The method for high entropy activation flotation of zinc oxide ores according to claim 1, wherein: and (3) calculating the addition amount of the gangue mineral combination inhibitor B in the step (4) by using low-grade zinc oxide ore, wherein the addition amount of the gangue mineral combination inhibitor B is 500-800 g/t.
7. The method for high entropy activation flotation of zinc oxide ores according to claim 1, wherein: and (3) counting the low-grade zinc oxide ore, wherein the adding amount of the zinc oxide ore high-entropy activator A in the step (5) is 800-1000 g/t.
8. The method for high entropy activation flotation of zinc oxide ores according to claim 1, wherein: and (3) calculating the addition amount of the long-chain xanthate collecting agent in the step (6) to be 700-900 g/t and the addition amount of the foaming agent to be 30-50 g/t by using the low-grade zinc oxide ore.
9. The method for high entropy activation flotation of zinc oxide ores according to claim 1 or 8, wherein: the long-chain xanthate collector is sec-octyl xanthate and/or isopentyl xanthate, and the foaming agent is terpineol oil or No. 2 oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211061995.3A CN115318448B (en) | 2022-09-01 | 2022-09-01 | Zinc oxide ore high entropy activation flotation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211061995.3A CN115318448B (en) | 2022-09-01 | 2022-09-01 | Zinc oxide ore high entropy activation flotation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115318448A CN115318448A (en) | 2022-11-11 |
| CN115318448B true CN115318448B (en) | 2023-07-14 |
Family
ID=83928099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211061995.3A Active CN115318448B (en) | 2022-09-01 | 2022-09-01 | Zinc oxide ore high entropy activation flotation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115318448B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115870099B (en) * | 2022-11-28 | 2024-06-14 | 昆明理工大学 | Method for recycling zinc from micro-fine zinc-containing high-sulfur tailings |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179761B (en) * | 2016-07-15 | 2020-04-07 | 昆明理工大学 | Beneficiation method for zinc oxide ore |
| CN111330741B (en) * | 2020-03-09 | 2022-01-28 | 中南大学 | Synchronous flotation method for oxidized-vulcanized mixed zinc ore |
-
2022
- 2022-09-01 CN CN202211061995.3A patent/CN115318448B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115318448A (en) | 2022-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109174467A (en) | A kind of method of lead-zinc sulfide ore object FLOTATION SEPARATION | |
| CN101831559A (en) | Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore | |
| CN106179761B (en) | Beneficiation method for zinc oxide ore | |
| CN113976307A (en) | Flotation separation method of refractory lead-zinc sulfide ore and zinc blende inhibitor thereof | |
| CN106140453A (en) | A kind of copper-lead zinc separation method of gold-bearing complex ore | |
| CN115318448B (en) | Zinc oxide ore high entropy activation flotation method | |
| CN102580855B (en) | Method for separating lead from carbon and copper in copper-lead-zinc mixed sulfide ore | |
| CN104815746A (en) | Recovery method of high-iron highly-argillaceous alkaline gangue refractory oxide copper ore | |
| CN113333176B (en) | Combined inhibitor containing water-soluble copper for copper sulfide ore copper-sulfur separation and method | |
| CN113856911B (en) | Beneficiation method for high-sulfur copper gold and silver ore | |
| 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 | |
| CN115430523B (en) | Flotation separation method of low-copper high-zinc refractory copper-zinc sulfide ore | |
| CN105567992A (en) | Method for reducing neutralization cost of refractory gold ore hot-pressing oxidation acid | |
| CN115318449B (en) | High-entropy collection flotation method for low-grade zinc oxide ores | |
| CN113333177B (en) | Combined inhibitor for separating copper sulfide ore containing secondary copper and separation method | |
| CN112452549B (en) | Beneficiation method for micro-fine particle tungsten ore | |
| CN101816979A (en) | Flotation activating agent of marmatite and blende and preparation method thereof | |
| CN111940146B (en) | Low-temperature-resistant zinc oxide ore flotation composite reagent and preparation method and application thereof | |
| CN108160311A (en) | A kind of flotation and metallurgy method of weak magnetic mineral coated sulphur oxygen mixing zinc ore | |
| CN115672558B (en) | Method for recycling zinc oxide ore through full-size-fraction reinforced vulcanization-classified floatation | |
| CN115945299B (en) | Zinc sulfide ore enhanced flotation method based on copper-lead coupling activation | |
| CN114074031B (en) | Method for separating copper-sulfur minerals by ferrate flotation | |
| CN118022973A (en) | Low-grade carbonate copper oxide ore four-component high-entropy collection flotation method | |
| CN113210137B (en) | Combined inhibitor for separation of kaolin-containing copper sulfide ore and separation 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 |