CN115415056A - Method for inhibiting zinc mineral and zinc sulfide mineral combined inhibitor - Google Patents
Method for inhibiting zinc mineral and zinc sulfide mineral combined inhibitor Download PDFInfo
- Publication number
- CN115415056A CN115415056A CN202211130890.9A CN202211130890A CN115415056A CN 115415056 A CN115415056 A CN 115415056A CN 202211130890 A CN202211130890 A CN 202211130890A CN 115415056 A CN115415056 A CN 115415056A
- Authority
- CN
- China
- Prior art keywords
- ore pulp
- dithiocarbamate
- zinc
- amino acid
- dihydroxyethyl
- 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
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
- B03D1/012—Organic compounds containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—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
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a zinc mineral inhibition method and a zinc sulfide mineral combined inhibitor. The method comprises the following steps: adding amino acid into the mixed ore pulp with the addition amount of 200-400 g/t Ore pulp Stirring for the first time under a heating condition to obtain first ore pulp; adding dithiocarbamate containing hydrophilic groups into the first ore pulp, wherein the adding amount is 200-400 g/t Ore pulp And stirring for the second time to obtain second ore pulp. According to the invention, the amino acid and the dithiocarbamate containing hydrophilic groups are used as the zinc sulfide mineral combination inhibitor, so that the zinc sulfide mineral inhibition is enhanced, the separation efficiency of the bulk concentrate is improved, and the dosage of the medicament is reduced.
Description
Technical Field
The invention relates to the technical field of mineral separation, in particular to a zinc mineral inhibition method and a zinc mineral inhibitor.
Background
The flotation process flow commonly used for the lead-zinc sulfide ore or the copper-zinc ore is a preferential flotation process, namely, the lead (copper) and zinc minerals are sequentially sorted according to the floatability of the minerals, so that high-quality lead (copper) and zinc concentrate can be obtained, and the flotation process commonly used for the lead-zinc sulfide ore or the copper-zinc ore is a flotation process commonly used for the lead-zinc sulfide ore or the copper-zinc ore. However, when the lead-zinc ore or copper-zinc ore is aggregated or densely intergrown and the ore grade is relatively poor, it is not appropriate to use a preferential flotation process. At this time, a bulk flotation process is usually employed to separate the aggregate of useful minerals from gangue to obtain copper-zinc or lead-zinc bulk concentrate, and the bulk concentrate is then subjected to copper-zinc or lead-zinc separation.
However, in the mixed flotation process, copper sulfate needs to be added to activate the zinc sulfide minerals, so that the floatability of the zinc sulfide minerals is greatly increased and is difficult to inhibit, and the separation difficulty of copper, zinc and lead zinc is increased. At present, for the inhibition of the copper ion activated zinc sulfide mineral, sodium sulfide, sodium bisulfite, sodium sulfite, zinc sulfate and the mixed solution of sodium carbonate and zinc sulfate are commonly used as the inhibitor, wherein the most commonly used is the combined agent of zinc sulfate and sodium sulfite. However, the inventor of the application finds that the inhibition by the medicament has the defects of high mutual content of (copper) lead-zinc concentrates after separation, large medicament dosage and the like.
Disclosure of Invention
According to one embodiment of the invention, the aim is to provide a zinc mineral inhibition method and a zinc sulfide mineral combination inhibitor, wherein the zinc sulfide mineral inhibition is enhanced, the separation efficiency of the bulk concentrate (low lead/copper content and zinc concentrate content) is improved, and the dosage of a medicament is reduced by adopting amino acid and dithiocarbamate containing hydrophilic groups as the zinc sulfide mineral combination inhibitor.
The above object can be achieved by the following embodiments of the technical solutions:
according to one aspect of the present invention, there is provided a zinc mineral suppression method comprising: adding amino acid into the mixed ore pulp, and stirring for the first time under a heating condition to obtain first ore pulp, wherein the adding amount of the amino acid is 200-400 g/t Ore pulp (ii) a Adding dithiocarbamate containing hydrophilic groups into the first ore pulp, and stirring for the second time to obtain second ore pulp, wherein the addition amount of the dithiocarbamate containing hydrophilic groups is 200-400 g/t Ore pulp 。
Optionally, in the step of stirring for the first time under a heating condition, the temperature of the ore pulp is controlled to be 40-60 ℃, and the time of stirring for the first time is 20-30 min.
Optionally, the amino acid is one or more of aspartic acid, methionine, lysine, glycine. Alternatively, the hydrophilic group-containing dithiocarbamate is a dihydroxyethyl dithiocarbamate. Further optionally, the dihydroxyethyl dithiocarbamate is one or more of sodium dihydroxyethyl dithiocarbamate, ammonium dihydroxyethyl dithiocarbamate, potassium dihydroxyethyl dithiocarbamate.
Optionally, before adding the amino acid, the method further comprises: and (3) thickening and removing the chemicals from the bulk concentrate pulp, and adjusting the pulp concentration to 40-50%.
Optionally, before adding the hydrophilic group-containing dithiocarbamate, further comprising: and adjusting the concentration of the first ore pulp to be 30-35%.
Optionally, the second stirring time is 3 to 5min.
Optionally, the method further comprises: adding a collecting agent into the second ore pulp, and stirring for the third time to obtain third ore pulp; and separating and floating the third ore pulp to obtain lead/copper concentrate and zinc concentrate.
Optionally, the third stirring time is 2-3 min; and/or the adding amount of the collecting agent is 10-20 g/t ore pulp.
Optionally, the separation flotation adopts one coarse sweeping, two fine sweeping and two fine sweeping; wherein, during the concentration operation, the dithiocarbamate containing hydrophilic groups is added; the addition amount of the dithiocarbamate containing hydrophilic groups is 20 to 60g/t Ore pulp 。
Optionally, the bulk concentrate is lead-zinc bulk concentrate or copper-zinc bulk concentrate, and the grade of the lead/copper concentrate obtained by separation and flotation is higher than 55%.
According to another aspect of the invention, a zinc sulfide mineral combination inhibitor is provided, which comprises amino acid and dithiocarbamate containing hydrophilic group, the zinc sulfide mineral combination inhibitor is added into ore pulp in a segmented dosing and stirring manner, and the amino acid is added and stirred under heating condition; wherein the addition amount of the amino acid is 200-400 g/t Ore pulp (ii) a The addition amount of the dithiocarbamate containing hydrophilic groups is 200-400 g/t Ore pulp 。
Optionally, the amino acid is one or more of aspartic acid, methionine, lysine, glycine. Alternatively, the hydrophilic group-containing dithiocarbamate is a dihydroxyethyl dithiocarbamate. Further optionally, the dihydroxyethyl dithiocarbamate is one or more of sodium dihydroxyethyl dithiocarbamate, ammonium dihydroxyethyl dithiocarbamate, and potassium dihydroxyethyl dithiocarbamate.
Alternatively, the amino acid action conditions are: the temperature of the ore pulp is controlled to be 40-60 ℃, and the stirring time is 20-30 min; and/or, the dithiocarbamate containing hydrophilic groups is reacted under the conditions: the stirring time is 3-5 min, and the temperature of the ore pulp is the natural cooling temperature of the ore pulp after the amino acid is added and stirred.
Has the advantages that: in the embodiment of the invention, the amino acid and the dithiocarbamate containing hydrophilic groups are used as the zinc sulfide inhibitor, and the sectional dosing mode is adopted, so that the mutual content of (copper) lead and zinc concentrate is effectively reduced, the lead and zinc separation efficiency of (copper) is improved, and the dosage of the medicament is reduced.
Drawings
FIG. 1 is a schematic flow chart of a method for suppressing zinc minerals according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment of the invention, the zinc sulfide mineral combination inhibitor comprises amino acid and dithiocarbamate containing hydrophilic group. The method for inhibiting the zinc minerals by adopting the zinc sulfide mineral combination inhibitor comprises the following steps: adding amino acid into the mixed ore pulp, and stirring for the first time under a heating condition to obtain first ore pulp; the adding amount of the amino acid is 200-400 g/t Ore pulp (ii) a Adding dithiocarbamate containing hydrophilic groups into the first ore pulp, and stirring for the second time to obtain second ore pulp; the addition amount of the dithiocarbamate containing hydrophilic groups is 200 to 400g/t Ore pulp . According to the embodiment, the amino acid and the dithiocarbamate containing hydrophilic groups are used as the zinc sulfide mineral combination inhibitor, the inhibitor is added into the ore pulp in a sectional dosing and stirring manner, and the action condition of the added amino acid is controlled under the heating condition, so that the content of lead (copper) and zinc concentrate after subsequent separation and flotation is effectively reduced, the separation efficiency of lead (copper) and zinc is improved, and the dosage of the reagent is reduced.
Fig. 1 schematically shows a flow of a zinc mineral suppression method in an embodiment. As shown in fig. 1, a zinc mineral inhibition method includes the following steps:
1) After the copper-zinc or lead-zinc bulk concentrate pulp is concentrated and subjected to reagent removal, the pulp is sent to a first stirrerMixing the mixture in a mixing tank, adding water to adjust the concentration of the ore pulp to 40-50%, and adding 200-400 g/t of amino acid Ore pulp E.g. 200g/t Ore pulp 、250g/t Ore pulp 、300g/t Ore pulp 、350g/t Ore pulp 、400g/t Ore pulp And the temperature of the ore pulp is controlled to be 40-60 ℃, such as 40 ℃, 45 ℃, 50 ℃, 55 ℃, 60 ℃ and the like, and the stirring time is controlled to be 20-30 min, such as 20min, 22min, 24min, 26min, 28min, 30min and the like. The dosage of amino acid is not excessive, and too much amino acid can affect the recovery rate of lead and copper.
The bulk concentrate in this example is a lead-zinc bulk concentrate or a copper-zinc bulk concentrate, which is obtained by separating a gangue from a useful mineral aggregate when a bulk flotation process is applied to lead (copper) zinc sulfide ore. By adopting the method, the subsequent lead (copper) and zinc separation efficiency of the bulk concentrate can be improved. The pulp concentration is adjusted prior to the addition of the amino acid to provide more favorable conditions for the amino acid.
The amino acid may be one or more of aspartic acid, methionine, lysine, glycine. The inventor of the application finds that: the amino acid can form amino acid chelated zinc on the surface of zinc sulfide under the heating condition, and the substance is a stable annular chelate and can be adsorbed on the surface of zinc sulfide minerals, so that a good flotation inhibition effect is achieved. Moreover, the conditions under which the amino acids in this example act are: the temperature of the ore pulp is controlled to be 40-60 ℃, the stirring time is 20-30 min, the inventor of the application further finds that under the condition, amino acid chelated zinc is more favorably formed, so that the amino acid is adsorbed on the surface of zinc sulfide minerals, a better flotation inhibition effect is achieved, and the flotation inhibition effect is influenced by overhigh or overlow temperature.
2) The ore pulp enters a second stirring barrel, water is added to adjust the concentration of the ore pulp to be 30-35%, and 200-400 g/t of dithiocarbamate containing hydrophilic groups is added Ore pulp E.g. 200g/t Ore pulp 、250g/t Ore pulp 、300g/t Ore pulp 、350g/t Ore pulp 、400g/t Ore pulp And the stirring time is 3-5 min, and the temperature of the ore pulp is the natural cooling temperature of the ore pulp flowing out of the first stirring barrel. By adjusting the pulp concentrationProviding more favorable action conditions for the combined inhibitor. The zinc sulfide mineral and the inhibitor are attached to the surface of the zinc sulfide mineral in an inserting manner by controlling the adding amount of the zinc sulfide mineral combined inhibitor, so that the flotation inhibition effect is improved; moreover, the dosage of the medicine is reduced, and the defect of large dosage of the medicine in the prior art is overcome. The usage amount of the dithiocarbamate containing hydrophilic groups is not excessive, and too much of the dithiocarbamate affects the recovery rate of lead and copper.
The hydrophilic group of the dithiocarbamate containing hydrophilic group can be hydroxyl group and the like; for example, the dithiocarbamate containing a hydrophilic group may be dihydroxyethyl dithiocarbamate or the like; the salt can be sodium salt, ammonium salt, potassium salt, etc. In particular, for example, the cationic moiety of the hydrophilic group-containing dithiocarbamate can be Na + 、K + 、NH 4 + The structure of the anion part is shown as follows:
in the present embodiment, the synthesis method of the dithiocarbamate containing a hydrophilic group is not limited, and the synthesis method disclosed in the prior art may be used. The following will take sodium dihydroxyethyl dithiocarbamate as an example, and further illustrate the action principle and effect of the compound and amino acid: the operation condition of the first stirring barrel can promote amino acid to form amino acid chelated zinc on the surface of zinc sulfide, and the substance is a stable annular chelate and can be adsorbed on the surface of zinc sulfide minerals; the dihydroxyethyl dithiocarbamate added in the second stirring barrel can also form dihydroxyethyl dithiocarbamate zinc with zinc, and the substance can also be stably adsorbed on the surface of a zinc sulfide mineral; the amino acid chelated zinc and the dihydroxyethyl dithiocarbamate both have hydrophilic groups, and the amino acid chelated zinc and the dihydroxyethyl dithiocarbamate are synergistically adhered to the surface of the zinc sulfide mineral in an interpenetration manner, so that the hydrophilicity of the zinc sulfide mineral can be greatly increased, and a good flotation inhibition effect is achieved.
3) The ore pulp enters a third stirring barrel, and is added with 10 to 20g of black liquort Ore pulp The stirring time is 2-3 min. Wherein the black powder can be 25# black powder, aniline black powder, ammonium nitrate black powder, etc.
4) Lead-zinc or copper-zinc separation flotation, and the separation operation can adopt one-stage roughing, two-stage concentration and two-stage scavenging operation. Lead/copper concentrate and zinc concentrate are obtained through separation and flotation, the grade of the lead/copper concentrate obtained through the method can reach 57%, the zinc content is only about 5.5%, and therefore the lead/copper and zinc concentrate are low in mutual content, and the lead/copper and zinc separation efficiency is high. In addition, the concentration may be carried out by adding an inhibitor of a dithiocarbamate having a hydrophilic group such as sodium dihydroxyethyldithiocarbamate, as appropriate, for example, in an amount of 20 to 60g/t Ore pulp Specifically, for example, the first concentration addition amount may be 40 to 60g/t The slurry of the ore is mixed with the ore slurry, the addition amount of the second fine concentration can be 20-40 g/t Ore pulp Etc.; heiyao can be added as appropriate for the scavenging operation.
In the embodiment, amino acid and dithiocarbamate containing hydrophilic groups such as dihydroxyethyl dithiocarbamate are used as a zinc sulfide combination inhibitor, and the addition amount of the amino acid and the dithiocarbamate is controlled by adding the drugs in sections, so that the mutual content of (copper) lead and zinc concentrate is effectively reduced, the separation efficiency of (copper) lead and zinc is improved, and the dosage of the drugs is reduced; and the amino acid can obtain better action effect at higher temperature by adding the medicine in sections.
In addition, the operation condition of the first stirring barrel is controlled, so that the amino acid is promoted to form a stable annular chelate, namely the amino acid chelated zinc on the surface of the zinc sulfide; based on the above, adding a dithiocarbamate containing hydrophilic groups such as dihydroxyethyl dithiocarbamate into the second stirring barrel, so that the dithiocarbamate and zinc form dihydroxyethyl dithiocarbamate, and the substance can be stably adsorbed on the surface of a zinc sulfide mineral; the amino acid chelated zinc and the dihydroxyethyl dithiocarbamate both have hydrophilic groups, and the amino acid chelated zinc and the dihydroxyethyl dithiocarbamate are synergistically adhered to the surface of the zinc sulfide mineral in an interpenetration manner, so that the hydrophilicity of the zinc sulfide mineral is greatly increased, and a good flotation inhibition effect is achieved.
The following will further explain the embodiments of the present invention and the effects thereof with reference to specific examples.
Example 1
Certain lead-zinc bulk concentrate contains 12.11% of lead and 5363% of zinc containing 36.86%.
After the concentrated bulk concentrate is subjected to thickening and reagent removal, the concentrated bulk concentrate enters a first stirring barrel, water is added to adjust the concentration of ore pulp to 45%, and 300g/t of glycine is added Ore pulp Controlling the temperature of the ore pulp to be 50 ℃ and stirring for 25min; then the ore pulp enters a second stirring barrel, water is added to adjust the concentration of the ore pulp to be 30 percent, and 300g/t of sodium dihydroxyethyl dithiocarbamate is added Ore pulp Stirring for 3min; the ore pulp enters a third stirring barrel, and No. 25 black powder 15g/t is added Ore pulp The stirring time is 3min. Then, the ore pulp enters a lead-zinc separation operation, wherein the separation operation comprises one-time rough concentration, two-time fine concentration and two-time scavenging; wherein the dosage of the sodium dihydroxyethyl dithiocarbamate in the two selection operations is 50g/t Ore pulp And 25g/t Ore pulp (ii) a The dosage of the 25# black powder in the two times of scavenging operation is respectively 5g/t Ore pulp And 2g/t Ore pulp 。
Finally, the grade of the lead concentrate is 56.12%, the recovery rate is 97.33%, and the zinc content is 5.81%.
Example 2
The difference from example 1 is that: the glycine dosage is 200g/t, the temperature of the ore pulp is controlled to be 45 ℃, and the stirring time is 20min. Finally, the grade of the lead concentrate is 56.01%, the recovery rate is 97.34%, and the zinc content is 6.01%.
Example 3
The difference from example 1 is that: the using amount of the glycine is 400g/t, the temperature of the ore pulp is controlled to be 55 ℃, and the stirring time is 30min. Finally, the grade of the lead concentrate is 56.16%, the recovery rate is 97.32%, and the zinc content is 5.63%.
Example 4
The difference from example 1 is that: the amount of the sodium dihydroxyethyl dithiocarbamate is 200g/t. Finally, the grade of the lead concentrate is 55.65%, the recovery rate is 97.53%, and the zinc content is 6.43%.
Example 5
The difference from example 1 is that: the amount of the sodium dihydroxyethyl dithiocarbamate used is 400g/t. Finally, the grade of the lead concentrate is 56.78%, the recovery rate is 96.88%, and the zinc content is 5.23%.
Comparative example 1
The difference from example 1 is that: without adding amino acid, the dosage of the dihydroxyethyl dithiocarbamate is 600g/t Ore pulp . Finally, lead concentrate with 53.12% grade, 97.76% recovery rate and 7.84% zinc content can be obtained.
Comparative example 2
The difference from example 1 is that: sodium dihydroxyethyl dithiocarbamate is not added, and the dosage of amino acid is 600g/t Ore pulp . Finally, the lead concentrate grade of 52.23%, the recovery rate of 98.04% and the zinc content of 8.25% can be obtained.
As can be seen from comparative examples 1 and 2 and example 1: under the condition of the same total dosage of the inhibitor, the effect is better by adopting the combined action of the amino acid and the dihydroxyethyl dithiocarbamate and adopting a single action.
The invention also has the following advantages and benefits in some of the above embodiments:
(1) Amino acid and sodium dihydroxyethyl dithiocarbamate are used as a zinc sulfide mineral combination inhibitor, and the drugs are added in sections, so that the zinc sulfide mineral inhibition is enhanced, the mutual content of lead (copper) and zinc concentrate is effectively reduced, and the lead-zinc separation efficiency of copper is improved.
(2) The amino acid reaction condition is carried out under the heating condition, namely the temperature of the ore pulp is controlled to be 40-60 ℃, the stirring time is 20-30 min, and the amino acid chelated zinc is more favorably formed under the condition, so that the amino acid is adsorbed on the surface of the zinc sulfide mineral; and the subsequent sodium dihydroxyethyl dithiocarbamate is penetrated and adhered to the surface of the zinc sulfide mineral, so that a better flotation inhibition effect is realized.
(3) Compared with the prior art, the dosage of the amino acid in the combined inhibitor is 200-400 g/t Ore pulp (ii) a The dithiocarbamate containing hydrophilic groups, such as dihydroxyethyl dithiocarbamate, is used in an amount of 200 to 400g/t Ore pulp The dosage of the medicament is reduced.
(4) The method is particularly suitable for separating copper-zinc or lead-zinc bulk concentrates in the process of bulk flotation when lead-zinc or copper-zinc minerals are in an aggregate or compact symbiotic state and the ore grade is relatively poor.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (13)
1. A method of inhibiting a zinc mineral, comprising:
adding amino acid into the mixed ore pulp, and stirring for the first time under a heating condition to obtain first ore pulp; the adding amount of the amino acid is 200-400 g/t Ore pulp ；
Adding dithiocarbamate containing hydrophilic groups into the first ore pulp, and stirring for the second time to obtain second ore pulp; the addition amount of the dithiocarbamate containing hydrophilic groups is 200 to 400g/t Ore pulp 。
2. The method according to claim 1, wherein the first stirring is carried out under heating at a temperature of 40 to 60 ℃ for 20 to 30min.
3. The method of suppressing zinc minerals according to claim 1,
the amino acid is one or more of aspartic acid, methionine, lysine and glycine;
and/or, the dithiocarbamate containing hydrophilic groups is dihydroxyethyl dithiocarbamate; the dihydroxyethyl dithiocarbamate is one or more of sodium dihydroxyethyl dithiocarbamate, ammonium dihydroxyethyl dithiocarbamate and potassium dihydroxyethyl dithiocarbamate.
4. The method of claim 1, further comprising, prior to the addition of the amino acid: and (3) thickening and removing the chemicals from the bulk concentrate pulp, and adjusting the pulp concentration to 40-50%.
5. The method of claim 1, further comprising, prior to adding the hydrophilic group-containing dithiocarbamate salt: and adjusting the concentration of the first ore pulp to be 30-35%.
6. The method according to claim 1, wherein the second stirring time is 3 to 5min.
7. The method of inhibiting zinc minerals according to claim 1, further comprising:
adding a collecting agent into the second ore pulp, and stirring for the third time to obtain third ore pulp;
and carrying out separation flotation on the third ore pulp to obtain lead/copper concentrate and zinc concentrate.
8. The method of suppressing zinc minerals according to claim 7,
the third stirring time is 2-3 min;
and/or the adding amount of the collecting agent is 10-20 g/t ore pulp.
9. The method for inhibiting zinc minerals according to claim 7, wherein the separation flotation adopts one coarse two fine two sweeps; wherein, during the concentration operation, the dithiocarbamate containing hydrophilic groups is added; the addition amount of the dithiocarbamate containing hydrophilic groups is 20 to 60g/t Ore pulp 。
10. The method of claim 7, wherein the bulk concentrate is a lead-zinc bulk concentrate or a copper-zinc bulk concentrate, and the lead/copper concentrate grade obtained by separation flotation is higher than 55%.
11. The zinc sulfide mineral combination inhibitor is characterized by comprising amino acid and dithiocarbamate containing hydrophilic groups, wherein the zinc sulfide mineral combination inhibitor is added into ore pulp in a segmented dosing and stirring manner, and the amino acid addition and stirring are carried out under the heating condition; wherein the addition amount of the amino acid is 200-400 g/t Ore pulp (ii) a The addition amount of the dithiocarbamate containing hydrophilic groups is 200-400 g/t Ore pulp 。
12. The zinc sulfide mineral combination inhibitor according to claim 11,
the amino acid is one or more of aspartic acid, methionine, lysine and glycine;
and/or, the dithiocarbamate containing hydrophilic groups is dihydroxyethyl dithiocarbamate; the dihydroxyethyl dithiocarbamate is one or more of sodium dihydroxyethyl dithiocarbamate, ammonium dihydroxyethyl dithiocarbamate and potassium dihydroxyethyl dithiocarbamate.
13. The zinc sulfide mineral combination inhibitor of claim 11, wherein the amino acid conditions are: the temperature of the ore pulp is controlled to be 40-60 ℃, and the stirring time is 20-30 min;
and/or the dithiocarbamate containing hydrophilic groups has the following action conditions: the stirring time is 3-5 min, and the temperature of the ore pulp is the natural cooling temperature of the ore pulp after the amino acid is added and stirred.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211130890.9A CN115415056A (en) | 2022-09-16 | 2022-09-16 | Method for inhibiting zinc mineral and zinc sulfide mineral combined inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211130890.9A CN115415056A (en) | 2022-09-16 | 2022-09-16 | Method for inhibiting zinc mineral and zinc sulfide mineral combined inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115415056A true CN115415056A (en) | 2022-12-02 |
Family
ID=84204810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211130890.9A Pending CN115415056A (en) | 2022-09-16 | 2022-09-16 | Method for inhibiting zinc mineral and zinc sulfide mineral combined inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115415056A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115894318A (en) * | 2022-12-14 | 2023-04-04 | 沈阳有色金属研究院有限公司 | Preparation method and application of copper-zinc separation inhibitor zinc N-methoxypropyl dithiocarbamate |
| CN117861861A (en) * | 2024-03-12 | 2024-04-12 | 中国矿业大学(北京) | Flotation separation method of zinc mineral inhibitor and lead-zinc mixed concentrate |
| CN117861861B (en) * | 2024-03-12 | 2024-05-31 | 中国矿业大学(北京) | Flotation separation method of zinc mineral inhibitor and lead-zinc mixed concentrate |
-
2022
- 2022-09-16 CN CN202211130890.9A patent/CN115415056A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115894318A (en) * | 2022-12-14 | 2023-04-04 | 沈阳有色金属研究院有限公司 | Preparation method and application of copper-zinc separation inhibitor zinc N-methoxypropyl dithiocarbamate |
| CN115894318B (en) * | 2022-12-14 | 2024-03-01 | 沈阳有色金属研究院有限公司 | Preparation method and application of copper-zinc separation inhibitor zinc N-methoxypropyl dithiocarbamic acid |
| CN117861861A (en) * | 2024-03-12 | 2024-04-12 | 中国矿业大学(北京) | Flotation separation method of zinc mineral inhibitor and lead-zinc mixed concentrate |
| CN117861861B (en) * | 2024-03-12 | 2024-05-31 | 中国矿业大学(北京) | Flotation separation method of zinc mineral inhibitor and lead-zinc mixed concentrate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111715411B (en) | Beneficiation method for high-sulfur lead-zinc ore | |
| CN112246445B (en) | Foam sorting activator and application thereof | |
| CN104162480A (en) | Method for separating copper ore, molybdenum ore, bismuth ore and sulfur ore | |
| CN101786049A (en) | Flotation method of lead-zinic-sulphide ore with high oxygenation efficiency | |
| CN115415056A (en) | Method for inhibiting zinc mineral and zinc sulfide mineral combined inhibitor | |
| CN112317135B (en) | Combined inhibitor for flotation separation of copper-lead sulfide ore and application thereof | |
| CN105312161B (en) | A kind of lead zinc sulphur bulk flotation separates the preparation method of inhibitor | |
| CN112191370A (en) | Flotation method for copper minerals | |
| CN112844855B (en) | Flotation reagent for selectively separating galena and sphalerite and application method thereof | |
| CN113856911A (en) | Beneficiation method for high-sulfur copper gold silver ore | |
| CN111530638B (en) | Method for deactivating, activating and flotation and recycling zinc sulfide ores in copper-lead flotation tailings | |
| CN109127150A (en) | A kind of method that lactalbumin inhibits member zincblende | |
| CN113102115A (en) | Beneficiation process for zinc mineral in low-grade lead-zinc sulfide ore and inhibitor thereof | |
| CN111715409A (en) | Combined lead inhibitor of micro-fine particle galena and application thereof | |
| CN107626456B (en) | Method for recovering cobalt-sulfur concentrate from fine-grained iron tailings | |
| AU2020407504B2 (en) | Arsenic removal from lead concentrate by ozone treatment and reverse flotation | |
| AU2021101525A4 (en) | A Preparation Method of Lead-zinc-Sulphur Mixing, Floating and Separating Inhibitor | |
| CN116532244A (en) | Low alkalinity inhibitor containing pyrite in secondary copper-sulfur ore and method | |
| CN112058502B (en) | Efficient flotation collector for zinc sulfide and application thereof | |
| CN114774687A (en) | Method for recovering gold and copper from oxygen-sulfur mixed copper-containing arsenic-containing refractory gold ore | |
| CN103831172A (en) | Combination collecting agent and method for improving antimony, lead and associated silver flotation recovery rate by adopting combination collecting agent | |
| WO2014208504A1 (en) | Production method for low-sulfur iron ore | |
| CN113649172B (en) | Sulfur inhibitor, high-sulfur marmatite flotation reagent and application thereof | |
| CN117861861B (en) | Flotation separation method of zinc mineral inhibitor and lead-zinc mixed concentrate | |
| CN108787179A (en) | The system for handling Pb-Zn deposits |
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 |