CN110358932A - A kind of high silicate zinc concentrate hydrometallurgical processes - Google Patents
A kind of high silicate zinc concentrate hydrometallurgical processes Download PDFInfo
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- CN110358932A CN110358932A CN201910763361.4A CN201910763361A CN110358932A CN 110358932 A CN110358932 A CN 110358932A CN 201910763361 A CN201910763361 A CN 201910763361A CN 110358932 A CN110358932 A CN 110358932A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
- C22B1/10—Roasting processes in fluidised form
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/26—Refining solutions containing zinc values, e.g. obtained by leaching zinc ores
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a kind of high silicate zinc concentrate hydrometallurgical processes, belong to field of hydrometallurgy.The present invention first carries out fluosolids roasting to the non-traditional type zinc concentrate of the low impurity of high silicon, and the low iron zinc calcine of high silicon low-sulfur is made；Two sections of counterflow leachings of peracid in one section-two sections of neutrality are carried out to the low iron zinc calcine of high silicon low-sulfur；Addition flocculant flocculate dense after neutrality leaching ore pulp is diluted with supernatant, and overflow recycles zinc after sending purification, so that silica is not gelled by controlling technology condition；Middle leaching underflow is using high acidic oils in waste electrolyte progress；Ore pulp filters pressing carries out solid-liquor separation after middle high acidic oils, and rotary system is sent after leached mud is dry, and leachate returns to configuration oxidation solution.High acidic oils method can avoid the formation of silica solution in leaching-directly in the routine that the present invention is used for high silicate zinc concentrate, greatly improve the settling property of ore pulp.The present invention have many advantages, such as compared with other high silicon mine treatment process simple process, process operability be easily achieved by force, leaching rate it is high.
Description
Technical field
The invention belongs to field of hydrometallurgy, are related to a kind of hydrometallurgical processes that zinc is extracted from high silicate zinc concentrate.
Background technique
With the development of all kinds of industries, zinc scope of use constantly expands, and zinc product consumption increases year by year, high-quality, Gao Pin
The supply of position zinc sulfide ore resource is increasingly insufficient, and the recycling and utilization of the non-traditional zinc resource such as high willemite, zinc oxide ore are got over
To be more taken seriously.The main problem of the high willemite of wet-treating is containing a large amount of element silicons in ore, and silica is in ore
It is dissolved out when leaching, colloidal sol or even gel easy to form, this brings great difficulty to sedimentation and filter operation.And solve this
The cardinal principle of problem can be attributed to two aspects: how avoid or prevent as far as possible the formation of silica solution when i.e. ore leaches；And
After colloidal sol is formed in ore pulp, how to promote its effective sedimentation separation, improves strainability.
China has made some progress in the processing method of high willemite, especially for the exploitation of high silica zinc oxide ore
It utilizes, has many researchs.
CN101418377 describes a kind of wet method smelting process of high silicon zinc oxide crude ore.It is first former to high silicon, high-iron zinc oxide
Mine is crushed, wet ball-milling, carries out acidic leaching to it with the waste electrolyte of flowsheet of wet zinc smelting, according to ferrous iron when acidleach
Potassium permanganate and/or manganese dioxide is added in extracting stage in ion concentration；In leaching, controlled at 40 DEG C~90 DEG C, acidity pH
Value is 0.5~5.2；Ore pulp after leaching is added flocculant and is flocculated and be concentrated.
CN101709386A provides a kind of method using high silica zinc oxide ore production zinc, and hot ore pulp is made after grinding,
Hot ore pulp and hot sulfuric acid solution are transported in reaction vessel, air is passed through and pressure in the reaction vessel is made to be 0.4MPa-
0.8MPa, temperature maintain 80 DEG C~130 DEG C, and then solid-liquor separation forms infusion solution, use conventional wet lay smelting process afterwards
Handle the infusion solution.
CN104278150A describes a kind of high direct Zn extraction process of silicon low-grade zinc oxide ore, comprising the following steps: even
Continuous acid adding leaches, and solution extracts after leaching, and extraction makees diluent using No. 260 kerosene, and P204 makees zinc extractant, is then stripped,
Liquid electrodeposition after back extraction.
CN109097557A discloses a kind of method that zinc is recycled from willemite resource, comprising the following steps: (1) will be former
Mine carries out break process, obtains the willemite of predetermined fineness；(2) sodium agent is added into willemite, pelletizes after mixing well, it will
Mixture carries out sodium roasting under oxidizing atmosphere, obtains sodium roasting product after cooling；(3) by the broken place of sodium roasting product
Reason, by Soaking treatment, obtains zinc lixiviating solution.
CN101285117 is related to a kind of hydrometallurgical technology of zinc oxide ore, especially the leaching side of high silica zinc oxide ore
Method.By high silica zinc oxide ore and contain Zn2+It is added in autoclave and carries out after sizing mixing with the industrial zinc electrolytic waste liquid of free sulfuric acid
Pressure leaching reaction, then by pulp liquid-solid isolation after reaction, infusion solution containing zinc is obtained, it is just produced after the processing of conventional mature technology
Electric zinc out.
Xinjiang of China southwest Wuqia area, which is contained, zinc resource abundant, and with zinc height, silicon is high, iron is low, impurity content
The features such as low is the low iron high-silicon type zinc concentrate of typical high zinc.High-silicon type zinc concentrate is deposited after being fired with conventional leaching process technique
The problem to form silica gel influence solid-liquor separation is leached in silica.
Summary of the invention
The present invention proposes in a kind of routine for Xinjiang southwest Wuqia and the ore characteristic of other regional high silicate zinc concentrates
High acidic oils technique in leaching-directly.Different from leaching-low soaking technology in leaching-low leaching-hot acid three stages acid leach in tradition or routine,
Underflow will be soaked in routine avoids silicon by selecting suitable acidleach mode and extract technology condition using directly middle high acidic oils
The formation of colloidal sol solves the problems, such as to leach the solid-liquor separation to form silica gel because of silica.
The object of the present invention is to provide a kind of high silicate zinc concentrate hydrometallurgical processes, which can develop and use me
What state, southwest Wuqia, Xinjiang and other areas were contained enriches high willemite resource.The technique can be avoided the formation of silica solution,
Greatly improve the settling property of ore pulp, simple process, leaching rate are high, process operability is strong and is industrially easily achieved.
In order to achieve the object of the present invention, used technical solution is as follows.
A kind of high silicate zinc concentrate hydrometallurgical processes, include the following steps:
(1) fluosolids roasting is carried out to high silicate zinc concentrate, obtains high silica containing zinc calcine；
(2) one section of neutral leaching is carried out with oxidation solution to high silica containing zinc calcine, obtains neutral leaching ore pulp；
(3) ore pulp is leached to neutrality and flocculant progress flocculating setting is added, obtained neutral supernatant with neutral and leach underflow；
(4) electrowinning process will be sent to obtain zinc product after the purification of neutral supernatant；
(5) underflow is leached to neutrality and carries out high acidic oils in two sections, obtain middle high acidic oils ore pulp；
(6) centering high acidic oils ore pulp is added flocculant and carries out flocculating setting, obtains middle peracid supernatant and middle high acidleach
Underflow out, middle peracid supernatant prepare oxidation solution for step (2) neutral leaching；
(7) centering high acidic oils underflow filters pressing carries out solid-liquor separation, recycles after leached mud is dry, leachate prepares oxidation solution
For the neutral leaching of step (2).
Further, step (1) high silicate zinc concentrate 45~60wt% containing zinc, iron content≤2wt%；Siliceous 3~
10wt%, wherein the form of silicon includes free silicon dioxide and silicate.
Further, step (1) the fluosolids roasting condition are as follows: 850 DEG C~1150 DEG C of maturing temperature, excess air system
Number 1.1~1.3, furnace bottom pressure 9kPa~15kPa.Excess air coefficient refers to amount of actual air for combustion and completely burned theoretical air requirement
Ratio.
Further, step (2) oxidation solution is to contain a certain amount of Fe with oxidisability3+Or Mn2+Solution, Fe2+
≤0.1g/L。
Further, step (2) oxidation solution is by waste electrolyte, mixed liquor, earth of positive pole slurry and manganese ore slurry
One or more to be formulated, mixed liquor is mixed for the filtered fluid and washing lotion of filter station and the various zinc-containing solutions of other workshop sections
It closes.
Further, described one section of step (2) neutral leaching condition are as follows: temperature 60 C~95 DEG C, liquid-solid ratio 10~15: 1,
Time 1h~4h, endpoint pH 4.8~5.4.Liquid-solid ratio is the ratio between liquid and solid masses in the present invention.
Further, step (3) and step (6) flocculant are polyacrylamide flocculant.
Further, high acidic oils condition in described two sections of step (5) are as follows: 60~90 DEG C of temperature, liquid-solid ratio 4~9: 1, when
Between 1h~3h, endpoint pH be 0.5~2.0.
Further, step (4) flows back the neutral supernatant open circuit in part, the neutral leaching obtained for dilution step (2)
Ore pulp out send electrowinning process to obtain zinc product after remaining neutral supernatant purification.Inventor is had found by unremitting effort, by part
Neutral supernatant open circuit reflux dilution neutrality leaches ore pulp, reduces formation and sedimentation that pulp density is conducive to floc sedimentation, greatly
Improve the neutral settling property for leaching ore pulp.
Further, the neutral supernatant of step (4) open circuit reflux accounts for the 10~50% of all neutral supernatants.
Wherein, the step is related to following reaction principle:
Sulfuric acid reaction contained in the substances such as zinc oxide contained by calcining, silicate and oxidation solution in leaching process, forms
Zinc ion and solvable silicon enter solution:
The sulfuric acid leaching of ZnO: ZnO+H2SO4=ZnSO4+H2O；
The sulfuric acid leaching of zinc silicate: 2ZnOSiO2+2H2SO4=2ZnSO4+2H2SiO4。
The silicic acid of leaching due to its extent of polymerization difference, exists in the form of tri- kinds of α, β, γ in the solution.α form close to
Unimolecule state (i.e. orthosilicic acid or simple metasilicic acid), will not influence the clarification filtration of solution, the i.e. solution of pH=2 or so,
Solution is most stable at this time.The present invention passes through high acidic oils in two sections of control, under conditions of high ph-values and addition flocculant, silicic acid
Closelypacked precipitating is flocculated into without being gelled, and greatly improves the Clarification Performance of ore pulp.
The present invention is controlled in one section by carrying out two sections of counterflow leachings of peracid in one section-two sections of neutrality to high silica containing zinc calcine
Property and two sections in high acidic oils process conditions, realize to the extraction of the zinc abstraction of high-silicon type zinc concentrate, have the advantage that
(1) it can be used for developing and using the non-traditional zinc resource such as high-silicon type zinc concentrate or zinc oxide ore.
(2) solid-liquor separation problem caused by silica gel in leaching is solved.
(3) simple process, process operability is strong, is industrially easily achieved.Technique is based on conventional method, for existing factory
It is easy to technological transformation.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention.
Specific embodiment
Embodiment 1
One, high silicate zinc concentrate main component is as shown in the table
| Element | Zn | SiO2 | S | Fe | Pb | Cd | Cu |
| Content/% | 56.82 | 8.08 | 28.06 | 1.40 | 0.68 | 0.24 | 0.057 |
Two, main processes
High silicate zinc concentrate fluosolids roasting carries out neutral leaching to calcining with the oxidation solution of conventional wet lay zinc metallurgy process, in
Property leach ore pulp it is dense, overflow send purification after recycle zinc；Middle leaching underflow with waste electrolyte carry out in high acidic oils, ore pulp after leaching
Add flocculant flocculation dense.
Three, technological condition and result
1, zinc concentrate granularity: -250 meshes >=82wt%.
2, high silicate zinc concentrate fluosolids roasting, 900 DEG C of maturing temperature, excess air coefficient 1.3, furnace bottom pressure is
12kPa.Calcining yield is 84.60%, and calcining contains zinc 65.66%, calcining sulfur-bearing 0.67%, desulfurization degree 97.98%.
3, calcining is leached with oxidation solution neutrality, and middle leaching oxidation solution is by waste electrolyte, mixed liquor, earth of positive pole slurry and manganese
Ore pulp composition, sulfuric acid concentration is about 40g/L, middle leaching time 2.5h, liquid-solid ratio 10: 1, and 70 DEG C of extraction temperature.Slag contains zinc after middle leaching
28%, zinc neutrality leaching rate 86%.
4, middle leaching underflow carries out high acidic oils in directly with waste electrolyte, and extraction time 4h, gives up and is electrolysed by 85 DEG C of extraction temperature
0.84~0.96m of liquid amount of allocating3/m3Middle leaching underflow.Slag contains zinc 8% after middle high acidic oils, low acid section zinc leaching rate 85%, and two sections
Comprehensive 98% or more zinc leaching rate.High acidic oils in control, silicon leaching rate 1.59%.Settling ore pulp function admirable.
Embodiment 2
Take containing zinc 51%, sulphur 27.5%, silica 1 2.3% high silicate zinc concentrate；Fluidization is carried out to high silicate zinc concentrate
Roasting, maturing temperature are 880 DEG C, and desulfurization with roasting technique rate is 98.5%；Calcining is carried out with the oxidation solution of conventional wet lay zinc metallurgy process
Neutrality leaches, and middle leaching is made of with oxidation solution waste electrolyte, mixed liquor, earth of positive pole slurry and manganese ore slurry, and middle 80 DEG C of leaching temperature,
Liquid-solid ratio 10: 1 is leached, extraction time 3h leaches endpoint pH 5.2, and neutrality leaching ore pulp is dense, and overflow is recycled after sending purification
Zinc；Middle leaching underflow with waste electrolyte carry out in high acidic oils, controlled at 70 DEG C, leach liquid-solid ratio 5: 1, extraction time 3h,
Leaching endpoint pH is 1.5, and two sections of zinc leaching rates are up to 98% or more；Ore pulp adds dense, the settling ore pulp of flocculant flocculation after leaching
Function admirable.
Embodiment 3
One, high silicate zinc concentrate main component is as shown in the table
| Element | Zn | S | Fe | SiO2 | Pb | Mn | CaO | MgO |
| Content | 57.00 | 30.08 | 1.58 | 7.37 | 0.41 | 0.026 | 0.42 | 0.12 |
| Element | Al | Ni | Co | Cu | Cd | Ga | Ge | In |
| Content | 0.58 | 0.0012 | 0.0011 | 0.049 | 0.25 | < 0.0005 | < 0.0005 | < 0.0005 |
| Element | Hg | As | Sb | Cr | F | Cl | Ag(g/t) | |
| Content | 0.001 | 0.008 | 0.0020 | 0.046 | 0.008 | 0.01 | 18.73 |
Two, main processes
High silicate zinc concentrate fluosolids roasting carries out neutral leaching to calcining with the oxidation solution of conventional wet lay zinc metallurgy process, in
Property leach ore pulp it is dense, overflow send purification after recycle zinc；Middle leaching underflow with waste electrolyte carry out in high acidic oils, ore pulp after leaching
Add flocculant flocculation dense.
Three, technological condition and result
1, zinc concentrate granularity: -200 meshes >=84wt%.
2, high silicate zinc concentrate fluosolids roasting, 950 DEG C of maturing temperature, excess air coefficient 1.3, furnace bottom pressure is
12kPa.Calcining yield is 84.53%, and calcining contains zinc 67.26%, calcining sulfur-bearing 0.17%, desulfurization degree 99.52%.
3, calcining is leached with oxidation solution neutrality, and middle leaching oxidation solution is by waste electrolyte, mixed liquor, earth of positive pole slurry and manganese
Ore pulp composition, sulfuric acid concentration are about 80g/L, middle leaching time 3h, liquid-solid ratio 10: 1, and 75 DEG C of extraction temperature.Slag contains zinc after middle leaching
28.20%, zinc neutrality leaching rate 86.42%.
4, middle leaching underflow with waste electrolyte carry out directly in high acidic oils, extraction time 3h, 80 DEG C of extraction temperature, middle peracid
Leach liquid-solid ratio 4.44: 1.Slag contains zinc 8.46%, low acid section zinc leaching rate 85.68%, two sections of comprehensive zinc leachings after middle high acidic oils
98% or more extracting rate.High acidic oils in control, silicon leaching rate < 2%.Settling ore pulp function admirable.
Claims (10)
1. a kind of high silicate zinc concentrate hydrometallurgical processes, which comprises the steps of:
(1) fluosolids roasting is carried out to high silicate zinc concentrate, obtains high silica containing zinc calcine；
(2) one section of neutral leaching is carried out with oxidation solution to high silica containing zinc calcine, obtains neutral leaching ore pulp；
(3) ore pulp is leached to neutrality and flocculant progress flocculating setting is added, obtained neutral supernatant with neutral and leach underflow；
(4) electrowinning process will be sent to obtain zinc product after the purification of neutral supernatant；
(5) underflow is leached to neutrality and carries out high acidic oils in two sections, obtain middle high acidic oils ore pulp；
(6) centering high acidic oils ore pulp is added flocculant and carries out flocculating setting, obtains middle peracid supernatant and middle high acidic oils bottom
Stream, middle peracid supernatant prepare oxidation solution for step (2) neutral leaching；
(7) centering high acidic oils underflow filters pressing carries out solid-liquor separation, recycles after leached mud is dry, leachate is prepared oxidation solution and is used for
Step (2) is neutral to be leached.
2. high silicate zinc concentrate hydrometallurgical processes according to claim 1, which is characterized in that step (1) the high silicon zinc
Concentrate 45~60wt% containing zinc, iron content≤2wt%；Siliceous 3~10wt%, wherein the form of silicon includes free silicon dioxide and silicon
Hydrochlorate.
3. high silicate zinc concentrate hydrometallurgical processes according to claim 1, which is characterized in that step (1) described fluidization
Roasting condition are as follows: 850 DEG C~1150 DEG C of maturing temperature, excess air coefficient 1.1~1.3, furnace bottom pressure 9kPa~15kPa.
4. high silicate zinc concentrate hydrometallurgical processes according to claim 1, which is characterized in that step (2) described oxidation solution
To contain a certain amount of Fe with oxidisability3+Or Mn2+Solution, Fe2+≤0.1g/L。
5. high silicate zinc concentrate hydrometallurgical processes according to claim 1, which is characterized in that step (2) described oxidation solution
By one of waste electrolyte, mixed liquor, earth of positive pole slurry and manganese ore slurry or it is a variety of be formulated, mixed liquor is filter station
Filtered fluid and the various zinc-containing solutions of washing lotion and other workshop sections mix.
6. high silicate zinc concentrate hydrometallurgical processes according to claim 1, which is characterized in that in described one section of step (2)
Property leaching condition are as follows: temperature 60 C~95 DEG C, 10~15:1 of liquid-solid ratio, time 1h~4h, endpoint pH 4.8~5.4.
7. high silicate zinc concentrate hydrometallurgical processes according to claim 1, which is characterized in that step (3) and step (6) institute
Stating flocculant is polyacrylamide flocculant.
8. high silicate zinc concentrate hydrometallurgical processes according to claim 1, which is characterized in that in described two sections of step (5)
High acidic oils condition are as follows: 60~90 DEG C of temperature, 4~9:1 of liquid-solid ratio, time 1h~3h, endpoint pH is 0.5~2.0.
9. high silicate zinc concentrate hydrometallurgical processes according to claim 1, which is characterized in that step (4) will part neutrality
Supernatant open circuit reflux, for the neutral leaching ore pulp that dilution step (2) obtain, power transmission Xie work after remaining neutral supernatant purification
Sequence obtains zinc product.
10. high silicate zinc concentrate hydrometallurgical processes according to claim 9, which is characterized in that step (4) open circuit reflux
Neutral supernatant accounts for the 10~50% of all neutral supernatants.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110983068A (en) * | 2019-12-25 | 2020-04-10 | 昆明冶金研究院有限公司 | Defoaming agent and application thereof in zinc oxide concentrate leaching |
| CN111363917A (en) * | 2020-03-25 | 2020-07-03 | 云南云铜锌业股份有限公司 | Treatment method of high silicon zinc roasted ore |
| CN111519040A (en) * | 2020-05-12 | 2020-08-11 | 云南金鼎锌业有限公司 | Zinc oxide concentrate leaching equipment and leaching mode thereof |
| CN112760478A (en) * | 2020-12-10 | 2021-05-07 | 核工业北京化工冶金研究院 | High-clay polymetallic ore pulp thickening method |
| CN115369237A (en) * | 2022-09-21 | 2022-11-22 | 云南驰宏资源综合利用有限公司 | Method for balancing production and consumption of manganese ions in zinc smelting |
| CN115612860A (en) * | 2022-10-26 | 2023-01-17 | 云南驰宏资源综合利用有限公司 | Leaching method of high-silicon zinc roasted ore |
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2019
- 2019-08-19 CN CN201910763361.4A patent/CN110358932A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110983068A (en) * | 2019-12-25 | 2020-04-10 | 昆明冶金研究院有限公司 | Defoaming agent and application thereof in zinc oxide concentrate leaching |
| CN110983068B (en) * | 2019-12-25 | 2022-08-19 | 昆明冶金研究院有限公司 | Defoaming agent and application thereof in zinc oxide concentrate leaching |
| CN111363917A (en) * | 2020-03-25 | 2020-07-03 | 云南云铜锌业股份有限公司 | Treatment method of high silicon zinc roasted ore |
| CN111519040A (en) * | 2020-05-12 | 2020-08-11 | 云南金鼎锌业有限公司 | Zinc oxide concentrate leaching equipment and leaching mode thereof |
| CN112760478A (en) * | 2020-12-10 | 2021-05-07 | 核工业北京化工冶金研究院 | High-clay polymetallic ore pulp thickening method |
| CN115369237A (en) * | 2022-09-21 | 2022-11-22 | 云南驰宏资源综合利用有限公司 | Method for balancing production and consumption of manganese ions in zinc smelting |
| CN115369237B (en) * | 2022-09-21 | 2023-08-22 | 云南驰宏资源综合利用有限公司 | Method for balancing production consumption of zinc smelting manganese ions |
| CN115612860A (en) * | 2022-10-26 | 2023-01-17 | 云南驰宏资源综合利用有限公司 | Leaching method of high-silicon zinc roasted ore |
| CN115612860B (en) * | 2022-10-26 | 2023-09-19 | 云南驰宏资源综合利用有限公司 | Leaching method of high-silicon zinc roasted ore |
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