CN113233426A - Method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag - Google Patents
Method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag Download PDFInfo
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- CN113233426A CN113233426A CN202110249443.4A CN202110249443A CN113233426A CN 113233426 A CN113233426 A CN 113233426A CN 202110249443 A CN202110249443 A CN 202110249443A CN 113233426 A CN113233426 A CN 113233426A
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- sulfur
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- oxygen pressure
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/027—Recovery of sulfur from material containing elemental sulfur, e.g. luxmasses or sulfur containing ores; Purification of the recovered sulfur
Abstract
The invention discloses a method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag, which belongs to the field of non-ferrous metal smelting and comprises the following steps of firstly, carrying out primary blank roughing; adding lime into the roughed tailings for size mixing, then adding a combined inhibitor of sodium sulfide, zinc sulfate and sodium sulfite, a collecting agent and a foaming agent, and carrying out two-stage chemical-adding rougher flotation; and merging the concentrates I, II and III in the rough concentration, adding an inhibitor after lime size mixing, and performing second-stage concentration, wherein the concentrate II in the fine concentration is sulfur concentrate. The invention effectively realizes the separation of sulfur, zinc sulfide, sulfate, silicate and other minerals in the zinc-oxygen pressure leaching high-sulfur slag, improves the grade of sulfur products, reduces the stockpiling of zinc-oxygen pressure leaching slag amount and provides favorable conditions for the comprehensive recovery of various elements, and valuable elements such as lead, zinc, silver and the like enter the tailing slag, and the flotation tailing slag and lead concentrate can enter lead smelting together after ore matching, thereby realizing the further recovery of the valuable elements such as lead, zinc, silver and the like in the flotation tailing.
Description
The technical field is as follows:
the invention belongs to the field of non-ferrous metal smelting, and particularly relates to a method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag.
Background art:
the sulfur products mainly come from natural sulfur ores and recovered sulfur, and from the 90 s of the 20 th century, the global natural sulfur yield is continuously reduced, while the amount of recovered sulfur is greatly increased. China is a large sulfur consuming country, but domestic sulfur is few, and the sulfur demand is highly dependent on the outside. From a global perspective, the middle east, north and south america, and the primary soviet union are the primary sources of sulfur supply. Domestic sulfur mainly comes from petroleum, natural gas, coal chemical industry and other inorganic salt chemical industries. Compared with natural sulfur ore, the recovered sulfur has the advantages of high purity, stable quality, less impurities and the like, and the price of the recovered sulfur is equivalent to that of the natural sulfur. Therefore, the recovered sulfur is a main source of sulfur commodity in the world, and the yield of sulfur recovered from sulfur-containing resources will continue to increase with further development and utilization of resources in the future.
The oxygen pressure leaching slag is listed in the category of non-ferrous metal smelting waste of HW48 due to the harmful elements such as mercury, arsenic and cadmium, however, the oxygen pressure leaching slag is also one of the most important raw materials for recovering elemental sulfur and other valuable elements such as silver, zinc and lead. In the zinc oxygen pressure leaching process, the leaching reaction is a heterogeneous reaction carried out on the surfaces of zinc sulfide concentrate particles as a leaching raw material. Generally, the ore pulp after ball milling of zinc sulfide concentrate is added into an autoclave and then treated with O2As an oxidizing agent, Fe3+As catalyst, adding lignosulfonate activator to destroy S coated on the surface of zinc concentrate0And (3) pressurizing and oxidizing zinc sulfide to form a zinc sulfate solution, and oxidizing sulfur into elemental sulfur. The reaction principle equation is as follows:
ZnS+H2SO4+0.5O2＝ZnSO4+H2O+S
the reaction proceeds very slowly in the absence of an accelerated oxygen transfer medium, which is dissolved iron, and typically concentrate containing large amounts of soluble iron to meet leaching requirements, and is usually carried out in two steps:
ZnS+Fe2(SO4)3＝ZnSO4+2FeSO4+S
2FeSO4+H2SO4+0.5O2＝Fe2(SO4)3+H2O
the produced sulfur mainly exists in the leaching residues in the following forms: (1) the sulfur exists in the form of a spherical aggregate and is often coated with sulfide; (2) exists in a biconical self-shaped crystal form and is distributed in the sulfide. (3) Are distributed in the leaching residue in the form of fine grain monomers.
Because the sulfur is generated in the zinc oxygen pressure leaching process, the pH value of ore pulp is very low and is about 2-4, the corrosivity is strong, and certain influence is brought to the separation process. But the simple substance sulfur has very strong hydrophobicity, the contact angle of the interface formed by the simple substance sulfur contacting with the water medium can be larger than 90 degrees, and the sulfur can be recovered by adopting the froth flotation (the recovery rate is lower) under the condition of not adding a medicament, so the sulfur is easier to perform the flotation. The flotation method does not need complex equipment, has very simple process, can treat leaching slag containing a large amount of unreacted sulfide, and is widely applied to industrial production at present. At present, sulfur is usually obtained by a flotation-thermal filtration method aiming at sulfur recovery in zinc oxygen pressure leaching slag at home and abroad. For the leaching slag with high sulfur content, the thermal filtration is needed to further separate the sulfur and the sulfide on the basis of the flotation, the higher the sulfur content in the leaching slag is, the better the thermal filtration effect is, and the better the sulfur filtration quality is. The recovery rate of sulfur in the flotation of leached residues is low under the condition of no chemicals, and sulfides can float together with sulfur under the condition of adding conventional flotation chemicals, so that the grade of sulfur concentrate is low. In order to further obtain high-grade sulfur products, a thermal filtration process is generally adopted after flotation, and a large amount of sulfur is lost in a filter cake during thermal filtration, so that the recovery rate of elemental sulfur is low, and the defects of high energy consumption and the like are caused.
The invention content is as follows:
the invention aims to overcome the defects and shortcomings in the background technology, provide a method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag, which is simple to operate, low in economic cost and high in recovery rate, realize high-efficiency and high-grade recovery of sulfur and provide comprehensive utilization benefits of resources.
The technical scheme adopted by the invention is as follows:
a method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag comprises the following steps:
(1) adding zinc oxygen pressure leaching high-sulfur slag into a flotation tank, and adding water for size mixing;
(2) performing primary blank roughing on the zinc oxygen pressure leached high-sulfur slag ore pulp subjected to size mixing in the step (1) to obtain rougher concentrate I and rougher tailings I;
(3) adding a pH regulator into the rougher tailings I prepared in the step (2), then adding an inhibitor, a collector and a foaming agent to perform rougher flotation II and rougher flotation III for two sections, merging the concentrates obtained by rougher flotation I, II and III to obtain rougher concentrates, and using the rougher tailings III as flotation tailings;
(4) and (4) adding a pH regulator into the rough concentration concentrate prepared in the step (3) for secondary concentration, adding an inhibitor in the concentration process, wherein the concentrated concentrate is the sulfur concentrate, and the concentrated I, II tailings serving as middlings I, II are returned to the rough concentration and the concentrated I in sequence.
Further, in the step (1), the concentration of the ore pulp after zinc oxygen pressure leaching high-sulfur slag size mixing is 20-40 wt%.
Further, in the step (3), the pH regulator is lime, the addition amount of the pH regulator in the roughing II is 5-7 kg/t, the foaming agent is methyl isobutyl carbinol (MIBC), and the addition amount of the foaming agent in the roughing II is generally 16-26 g/t.
Further, in the step (3), the inhibitor is a combined inhibitor of sodium sulfide, zinc sulfate and sodium sulfite, and the addition amount of the combined inhibitor in the roughing II is 100-400 g/t respectively.
Further, in the step (3), the collecting agent is ethionamide, and the addition amount of the collecting agent in the rough separation II is 5-50 g/t.
Furthermore, the dosage of the medicament in the rough selection III stage in the step (3) is half of that of the medicament in the rough selection II stage.
Further, the inhibitor added in the selection I in the step (4) is a combined inhibitor of sodium sulfide, zinc sulfate and sodium sulfite, and the addition amount of the inhibitor, the zinc sulfate and the sodium sulfite is 50-400 g/t respectively.
Further, in the step (4), the dosage of the medicament in the selection II is half of that in the selection I.
Further, in the step (4), the pH regulator is lime, and the adding amount is 3-4 g/t.
Further, in the step (4), the sulfur grade in the sulfur concentrate is not less than 90%, wherein the elemental sulfur is not less than 83%.
In the step (3), valuable elements such as lead, silver and the like enter tailing slag, and flotation tailing slag and lead concentrate ore blending can enter lead smelting together, so that the valuable elements such as lead, silver and the like in the flotation tailing slag are further recovered;
the term "g/t" used in the present invention refers to the addition amount of the agent relative to the zinc oxygen pressure leaching high sulfur slag, for example, the dosage of Z-200 is 20g/t, which means that the dosage of Z-200 added for treating one ton of zinc oxygen pressure leaching high sulfur slag is 20 g.
Compared with the prior art, the invention has the following advantages:
(1) the novel directional flotation process is adopted for the zinc oxygen pressure leaching slag, the result of the flotation process is stable, the process operation is simple, and the pile stock of the zinc oxygen pressure leaching slag can be greatly reduced. Compared with the conventional blank flotation, the directional flotation has high sulfur recovery rate, the sulfur grade reaches over 90 percent, the recovery rate reaches over 90 percent, the elemental sulfur grade in the sulfur concentrate can reach over 83 percent, and the recovery rate is over 99.9 percent through the closed flotation process. Compared with conventional dosing flotation, the directional flotation can realize more thorough separation of sulfur and other valuable elements, the silver grade in tailings is improved to 370g/t from the original 220g/t, the recovery rate reaches 93%, the recovery rate of zinc also reaches over 90%, the effect is obvious, and effective separation of sulfur and zinc and silver is realized.
(2) The problem that sulfur is difficult to separate from zinc, silver and the like is solved by adding the combined inhibitor and the collecting agent in the flotation process, the grade of a sulfur product is improved, the collecting agent adopts Z-200, the sulfur and part of sulfides can be floated together, the floating of the sulfides can be inhibited by adding the inhibitor, the grade of the sulfur in the concentrate is improved, the directional selective recovery is realized, and the recovery rate of sulfur in the zinc-oxygen pressure leaching high-sulfur slag is further improved.
(3) By utilizing the characteristic of good floatability of sulfur, adopting a flotation process, adding a small amount of medicament, adopting one-section blank rough separation, two-section medicament-adding rough separation and two-section fine separation, the full-process efficient recovery of the sulfur flotation is realized, the floatability difference among materials in the flotation process is fully utilized, the separation of substances is realized, and the grade of flotation products is improved. Therefore, the invention fully utilizes the inherent characteristics of the substances in the treatment process, has small addition amount of the medicament and has good economical efficiency.
The specific implementation mode is as follows:
in order to make the technical means, the creation features, the achievement objects and the effects of the present invention easier to understand, the technical solutions of the present invention are further described below with reference to specific embodiments, it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
The following examples are given without specific indication, all reagents used are common commercial products or prepared by conventional means, and the equipment used is conventional in the art, and the invention is further described below with reference to specific examples.
Example 1:
the embodiment provides a method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag, which comprises the following steps:
(1) adding zinc oxygen pressure leaching high-sulfur slag containing elements such as sulfur, zinc, lead, iron, silver and the like into a flotation tank, and mixing the high-sulfur slag with water according to a certain proportion to obtain 20% zinc oxygen pressure leaching high-sulfur slag ore pulp containing 46.21% of sulfur, 4.31% of zinc, 1.92% of lead, 15.40% of iron and 220g/t of silver;
(2) performing primary blank roughing on the zinc-oxygen pressure leached high-sulfur slag ore pulp prepared in the step (1), controlling the rotating speed and maintaining the thickness of a foam layer to obtain rougher concentrate I and rougher tailings I;
(3) adding lime into the roughed tailings prepared in the step (2) by 5kg/t, performing secondary rougher flotation, and adding an inhibitor, a collecting agent and a foaming agent into the roughed tailings, wherein the rougher II adopts a combined inhibitor of sodium sulfide, zinc sulfate and sodium sulfite, the dosage of each of the three components is 100g/t, and the dosage of each of the three components in the rougher III is 50 g/t; the collecting agent of the roughing II adopts Z-200, the using amount is 20g/t, and the using amount in the roughing III is 10 g/t; MIBC is adopted as a foaming agent in the roughing II, the using amount is 16g/t, and the using amount in the roughing III is 8 g/t; the concentrates obtained by the rough concentration I, II and III are combined to be used as rough concentration concentrates, tailings in the rough concentration III are flotation tailings, and the flotation tailings contain 7.90 percent of sulfur, 7.16 percent of zinc, 3.42 percent of lead, 27 percent of iron and 377g/t of silver;
(4) adding lime 3kg/t into the rough concentration concentrate prepared in the step (3), and performing secondary concentration, wherein a sodium sulfide, zinc sulfate and sodium sulfite combined inhibitor is adopted in the concentration I process, the using amounts of the sodium sulfide, the zinc sulfate and the sodium sulfite are respectively 100g/t, the using amount in the concentration II is respectively reduced by half, the tail ore of the concentration I, II is used as middling I and middling II to return to the rough concentration and concentration I process in sequence, the concentration II concentrate is sulfur concentrate, the sulfur grade in the sulfur concentrate is 91.25%, and the elemental sulfur content is 83.46%.
Example 2
The embodiment provides a method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag, which comprises the following steps:
(1) adding zinc-oxygen pressure leaching high-sulfur slag containing elements such as sulfur, zinc, lead, iron and silver into a flotation tank, and mixing the high-sulfur slag with water according to a certain proportion to obtain 32% zinc-oxygen pressure leaching high-sulfur slag ore pulp containing 56.68% of sulfur, 2.28% of zinc, 2.32% of lead, 12.86% of iron and 140g/t of silver;
(2) performing primary blank roughing on the zinc-oxygen pressure leached high-sulfur slag ore pulp prepared in the step (1), controlling the rotating speed and maintaining the thickness of a foam layer to obtain rougher concentrate I and rougher tailings I;
(3) adding lime 7kg/t into the roughed tailings prepared in the step (2), performing secondary roughed flotation, and adding an inhibitor, a collecting agent and a foaming agent in the roughed flotation process, wherein the roughed flotation II adopts sodium sulfide, zinc sulfate and sodium sulfite as a combined inhibitor, the components of the roughed flotation II, the zinc sulfate and the sodium sulfite are 400g/t respectively, and the using amount of the roughed flotation III is reduced by half; the collecting agent of the roughing II adopts Z-200, the dosage is 30g/t, and the dosage in the roughing III is 15 g/t; MIBC is adopted as a foaming agent in the roughing II, the using amount is 20g/t, and the using amount in the roughing III is 10 g/t; combining the concentrates obtained by the rough concentration I, II and III to be used as rough concentration concentrate, wherein tailings of the rough concentration III are flotation tailings, and the flotation tailings contain 11.79% of sulfur, 4.56% of zinc, 5.36% of lead, 37% of iron and 289g/t of silver;
(4) adding lime 3.5kg/t into the rough concentration concentrate prepared in the step (3) for second-stage concentration, wherein a combined inhibitor of sodium sulfide, zinc sulfate and sodium sulfite is adopted in the concentration I, the dosage of the combined inhibitor is 150g/t, and the dosage of the combined inhibitor is reduced by half in the concentration II. The selected I, II tailings are used as middlings I and II to return to the rough concentration and the selected I process in sequence, the selected II concentrate is sulfur concentrate, the sulfur grade in the sulfur concentrate is 93.97%, and the elemental sulfur content is 83.60%;
example 3:
the invention provides a method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag, which comprises the following steps:
(1) adding zinc oxygen pressure leaching high-sulfur slag containing elements such as sulfur, zinc, lead, iron, silver and the like into a flotation tank, and mixing the high-sulfur slag with water according to a certain proportion to obtain 40% zinc oxygen pressure leaching high-sulfur slag ore pulp containing 33.40% of sulfur, 3.08% of zinc, 1.90% of lead, 10.23% of iron and 124g/t of silver;
(2) performing primary blank roughing on the zinc-oxygen pressure leached high-sulfur slag ore pulp prepared in the step (1), controlling the rotating speed and maintaining the thickness of a foam layer to obtain rougher concentrate I and rougher tailings I;
(3) adding lime into the roughed tailings prepared in the step (2) by 5kg/t, performing secondary rougher flotation, and adding an inhibitor, a collecting agent and a foaming agent in the rougher flotation process, wherein the rougher flotation I adopts a combined inhibitor of sodium sulfide, zinc sulfate and sodium sulfite, the dosage of each of the three is 200 g/t, and the dosage of each of the two is reduced by half in the cleaner flotation II; the collecting agent for rough concentration II adopts Z-200, the dosage is 10g/t, and the dosage of rough concentration III is 5 g/t; MIBC is adopted as a foaming agent for roughing II, the using amount is 26g/t, and the using amount of roughing III is 13 g/t; the concentrates obtained by the rough concentration I, II and III are combined to be used as rough concentrate for fine concentration treatment, tailings in the rough concentration III are flotation tailings, and the flotation tailings contain 7.42% of sulfur, 4.08% of zinc, 2.77% of lead, 14.93% of iron and 170g/t of silver;
(4) adding lime 4kg/t into the rough concentration concentrate prepared in the step (3), and performing secondary concentration, wherein a combined inhibitor of sodium sulfide, zinc sulfate and sodium sulfite is adopted in the concentration I, the use amounts of the three are respectively 50g/t, the use amounts of the three in the concentration II are respectively 25g/t, the concentration I, II tailings are used as middlings I and middlings II to return to the rough concentration and concentration I processes in sequence, the concentration II concentrate is sulfur concentrate, the sulfur concentrate has the sulfur grade of 90.84% and the elemental sulfur content of 85.42%.
Claims (10)
1. A method for recovering sulfur from zinc oxygen pressure leaching high-sulfur slag is characterized by comprising the following steps:
(1) adding zinc oxygen pressure leaching high-sulfur slag into a flotation tank, and adding water for size mixing;
(2) performing primary blank roughing on the zinc oxygen pressure leached high-sulfur slag ore pulp subjected to size mixing in the step (1) to obtain rougher concentrate I and rougher tailings I;
(3) adding a pH regulator into the rougher tailings I prepared in the step (2), then adding an inhibitor, a collecting agent and a foaming agent to perform rougher flotation II and rougher flotation III for two sections, merging the concentrates obtained by rougher flotation I, II and III to obtain rougher concentrates, and obtaining rougher tailings III which are flotation tailings;
(4) and (4) adding a pH regulator into the rough concentration concentrate prepared in the step (3) for secondary concentration, adding an inhibitor in the concentration process, wherein the concentrated concentrate is the sulfur concentrate, and the concentrated I, II tailings serving as middlings I, II are returned to the rough concentration and the concentrated I in sequence.
2. The method for recovering sulfur from zinc oxygen pressure leaching high sulfur slag according to claim 1, wherein in the step (1), the concentration of the ore pulp after the zinc oxygen pressure leaching high sulfur slag size mixing is 20-40 wt%.
3. The method for recovering sulfur from zinc-oxygen pressure leaching high sulfur slag according to claim 1, wherein in the step (3), the pH regulator is lime, the addition amount of the pH regulator in the roughing II is 5-7 kg/t, the foaming agent is methyl isobutyl carbinol, and the addition amount of the foaming agent in the roughing II is generally 16-26 g/t.
4. The method for recovering the sulfur from the zinc oxygen pressure leaching high sulfur slag according to the claim 1, wherein in the step (3), the inhibitor is a combined inhibitor of sodium sulfide, zinc sulfate and sodium sulfite, and the addition amount of the combined inhibitor in the roughing II is 100-400 g/t respectively.
5. The method for recovering sulfur from zinc-oxygen pressure leaching high-sulfur slag according to claim 1, wherein in the step (3), the collector is ethionamide, and the addition amount of the collector in the roughing II is 5-50 g/t.
6. The method for recovering the sulfur from the zinc oxygen pressure leaching high sulfur slag according to claim 1, wherein the dosage of the medicament in the stage III of the rough concentration in the step (3) is half of that in the stage II of the rough concentration.
7. The method for recovering sulfur from zinc oxygen pressure leaching high sulfur slag according to claim 1, wherein the inhibitor added in the concentration I in the step (4) is a combined inhibitor of sodium sulfide, zinc sulfate and sodium sulfite, and the addition amount of the inhibitor is 50-400 g/t.
8. The method for recovering sulfur from zinc oxygen pressure leaching high sulfur slag according to claim 1, wherein the concentration II agent dosage in the step (4) is half of the concentration I agent dosage.
9. The method for recovering the sulfur from the zinc oxygen pressure leaching high sulfur slag according to claim 1, wherein the pH regulator in the step (4) is lime, and the addition amount is 3-4 g/t.
10. The method for recovering sulfur from zinc oxygen pressure leaching high sulfur slag according to claim 1, wherein in the step (4), the sulfur grade in the sulfur concentrate is not less than 90%, and the elemental sulfur in the sulfur concentrate is not less than 83%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114715854A (en) * | 2022-03-31 | 2022-07-08 | 常熟理工学院 | Method for recovering elemental sulfur by leaching high-sulfur slag through zinc oxygen pressure |
| CN116812874A (en) * | 2023-08-30 | 2023-09-29 | 昆明理工大学 | Method for efficiently recycling sulfur and zinc and silver from zinc hydrometallurgy high-sulfur residues |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527497A (en) * | 2011-12-29 | 2012-07-04 | 中南大学 | Beneficiation method for separating zinc sulfide ores from sulphur in wet-method zinc smelting slag |
| CN108372030A (en) * | 2018-04-23 | 2018-08-07 | 北京矿冶科技集团有限公司 | A kind of method for floating that lead sulphur zinc sequence is preferential |
| CN109174459A (en) * | 2018-09-10 | 2019-01-11 | 北京矿冶科技集团有限公司 | The beneficiation method of high sulfur-lead-zinc ore under a kind of hot environment |
| CN109734057A (en) * | 2019-01-02 | 2019-05-10 | 长沙有色冶金设计研究院有限公司 | A kind of method of zinc oxygen leaching slag Recovered sulphur and silver |
| CN111715411A (en) * | 2020-07-01 | 2020-09-29 | 中南大学 | Beneficiation method for high-sulfur lead-zinc ore |
| CN112138855A (en) * | 2020-08-10 | 2020-12-29 | 西部矿业股份有限公司 | Method for recycling zinc oxygen pressure leaching sulfur flotation tailings |
-
2021
- 2021-03-08 CN CN202110249443.4A patent/CN113233426A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527497A (en) * | 2011-12-29 | 2012-07-04 | 中南大学 | Beneficiation method for separating zinc sulfide ores from sulphur in wet-method zinc smelting slag |
| CN108372030A (en) * | 2018-04-23 | 2018-08-07 | 北京矿冶科技集团有限公司 | A kind of method for floating that lead sulphur zinc sequence is preferential |
| CN109174459A (en) * | 2018-09-10 | 2019-01-11 | 北京矿冶科技集团有限公司 | The beneficiation method of high sulfur-lead-zinc ore under a kind of hot environment |
| CN109734057A (en) * | 2019-01-02 | 2019-05-10 | 长沙有色冶金设计研究院有限公司 | A kind of method of zinc oxygen leaching slag Recovered sulphur and silver |
| CN111715411A (en) * | 2020-07-01 | 2020-09-29 | 中南大学 | Beneficiation method for high-sulfur lead-zinc ore |
| CN112138855A (en) * | 2020-08-10 | 2020-12-29 | 西部矿业股份有限公司 | Method for recycling zinc oxygen pressure leaching sulfur flotation tailings |
Non-Patent Citations (1)
| Title |
|---|
| 富田坚二, 中国建筑工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114715854A (en) * | 2022-03-31 | 2022-07-08 | 常熟理工学院 | Method for recovering elemental sulfur by leaching high-sulfur slag through zinc oxygen pressure |
| CN116812874A (en) * | 2023-08-30 | 2023-09-29 | 昆明理工大学 | Method for efficiently recycling sulfur and zinc and silver from zinc hydrometallurgy high-sulfur residues |
| CN116812874B (en) * | 2023-08-30 | 2023-11-17 | 昆明理工大学 | Method for efficiently recycling sulfur and zinc and silver from zinc hydrometallurgy high-sulfur residues |
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