CN86108798A - The full wet method of zinc ore is produced zinc sulfate and active zinc flower - Google Patents
The full wet method of zinc ore is produced zinc sulfate and active zinc flower Download PDFInfo
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- CN86108798A CN86108798A CN86108798.4A CN86108798A CN86108798A CN 86108798 A CN86108798 A CN 86108798A CN 86108798 A CN86108798 A CN 86108798A CN 86108798 A CN86108798 A CN 86108798A
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Abstract
The full wet method of zinc ore is produced zinc sulfate and active zinc flower.The present invention be a kind of be raw material with the zinc ore, full wet method is produced the chemical metallurgy method of zinc sulfate and active zinc flower.This law is that leaching agent leaches zinc with the dilute sulphuric acid from zinc ore, and oxidization by bleaching powder, milk of lime are regulated the deironing of pH value, manganese, flocculation agent absorption silica removal, arsenic, lead, and impurity such as zinc dust precipitation copper removal, nickel, cadmium eliminate trace iron and manganese with the chlorinated lime secondary oxidation again.Scavenging solution evaporation concentration, cooling crystallization make finished product zinc sulfate; Zinc is sunk in the scavenging solution carbonization, and calcination activation makes finished product zinc oxide.Associate lead reclaims with concentrate or lead salt form; Waste liquid reclaims with ammonium sulfate zinc composite chemical fertilizer form.
Description
The present invention be a kind of be raw material with the zinc ore, full wet method is produced zinc sulfate and active zinc flower (international Patent classificating number C22B-19/34), reclaim valuable metals such as receiving associate lead, the chemical metallurgy method that waste liquid reclaims with ammonium sulfate zinc composite chemical fertilizer with the Chemicals form simultaneously.
Traditional zinc sulfate reparation technology is to be that producing of raw material (international Patent classificating number C01G-09/06), zinc oxide can be heated metallic zinc, fusion is evaporated, to use atmospheric oxidation (russian patent SU-1011525) with metallic zinc or zinc oxide, and in the prior art, use wet production zinc oxide, then be to adopt caustic alkali to make lixiviant (russian patent SU467124), be heavy plumbous agent with soda ash.This class technology, not only raw material sources are restricted, and the metal yield is lower, production cost is high, especially used heavy plumbous agent soda ash, price is expensive, market is scarce.Produce the liquid waste disposal difficulty that produces in the process.
The object of the present invention is to provide and a kind ofly make raw material with zinc ore (being good especially) with hydrozincite, smithsonite, zinkosite, Zinc sulphate, full wet method is produced the effective ways of zinc sulfate and active zinc flower, improve metal recovery rate, realize that the mineral products white silk closes utilization, avoid " three wastes " to pollute.
Content of the present invention and implementation method are to be raw material with the zinc ore, and dilute sulphuric acid leaches, twice oxidation of chlorinated lime, the absorption of flocculation agent alkalescence, zinc dust precipitation impurity and purification, scavenging solution is through evaporation concentration, zinc is sunk in cooling crystallization system zinc sulfate or scavenging solution carbonization, calcination activator system active zinc flower.Valuable metal such as associate lead reclaims with the Chemicals form simultaneously in the mineral, and waste liquid reclaims with ammonium sulfate zinc composite chemical fertilizer form.Now that each step division is as follows:
1. dilute sulphuric acid leaches:
With the zinc ore that contains zinc 〉=25% is raw material, and wet-milling is pulverized in ball mill, makes granularity-100 order 〉=95%.In the acid-resistant reacting kettle that band stirs, allocate the dilute sulphuric acid of 120～150g/L earlier into, stir the good ore pulp of adding mill down, normal temperature leached 40～80 minutes.(sour consumption is in 1.1～1.2 times of the zinc theoretical amount, the ore deposit (Gu): diluted acid (liquid)=1: 3～4, should deduct the moisture content in the ore pulp during complex acid).Discharging is filtered with rubber or polypropylene sheet frame pressure filter, washing.Filtrate is sent purification, and slag send aftertreatment to reclaim associated valuable metals.Main chemical reactions is: (is representative with smithsonite)
2. iron removal by oxidation, manganese, flocculation desiliconisation, arsenic, lead:
Pump into the sulphuric leachate of zinc in being with the chuck acid-resistant reacting kettle that stirs, being heated to 80～90 ℃, stirring 1.2～1.4 times the oxidization by bleaching powder low price ferrimanganic that adds down in iron, manganese theoretical amount is high price; It is 5～5.2 that adding milk of lime makes solution be neutralized to pH, makes ferric sulfate and manganese salt hydrolysis precipitation; Add No. 3 flocculation agent saturated solutions of liquor capacity amount～0.5%, stirring heating was boiled 10～20 minutes, and blowing leaves standstill impurity such as back siphon iron removal by filtration, manganese, silicon, arsenic, lead.Scavenging solution send displacement to purify again, and the filter mud focus utilization has valency manganese or discards.Main chemical reactions is:
3. replace copper removal, nickel, cadmium, the thorough demanganize of secondary oxidation, iron:
With deironing, manganese, the solution of desiliconization, arsenic, plumbous back is heated to 75～85 ℃ in the chuck acid-resistant reacting kettle that band stirs, metallic impurity such as the zinc dust precipitation copper removal of adding-200 orders 〉=95%, nickel, cadmium under stirring, the zinc powder consumption is 1.5～2 times of desire substitutional impurity metal meter theoretical amount, and the replacement(metathesis)reaction time is 40～60 minutes.Suction filtration separates, and filtrate is sent secondary oxidation, and filter mud is concentrated valuable metals such as reclaiming cadmium.
Filtrate is heated to 80～90 ℃ in the secondary oxidation still, stirring down, the adding chlorinated lime carries out the thorough demanganize of secondary oxidation, iron, chlorinated lime is with 10% of once oxidation consumption the most, be heated to the reaction 10～20 minutes of boiling, siphon is filtered behind the blowing sufficient standing, scavenging solution send finished product, and filter mud merges recovery manganese or abandons it.Main chemical reactions is:
(wherein, Me is foreign metals such as copper, nickel, cadmium)
4. producing of zinc sulfate:
The scavenging solution heating evaporation is concentrated into 45～55Be ', puts into the cooling crystallizer cooling crystallization, Li scheming Tuo Shui And promptly makes the finished product Zinc Sulphate Heptahydrate in 100～140 ℃ of dryings.(control condition also can be made water or Zincomed).Mother liquor: one, two mothers return concentratedly, return below three mothers and purify or leach complex acid.
5. producing of active zinc flower:
Zinc is sunk in carbonization: in 40～50 ℃, stir down with in the carbon ammonium and scavenging solution in jacket reactor, make PH=6.5～7.0.Continuing heated and stirred to temperature is 70～80 ℃, and when free alkali was lower than 0.5%, the suction filtration rinsing got zinc subcarbonate.Main chemical reactions is:
The calcination activation: zinc subcarbonate is dried to water content＜5% under 250～350 ℃, change 550～650 ℃ of roastings again over to and promptly make active zinc flower.Main chemical reactions is:
6. the valence containing lead slag is produced lead nitrate:
When used mineral aggregate was zinc lead mineral intergrowth, the slag that sulfuric acid soaks behind the zinc placed the chuck enamel reaction still, with 11～13% nitric acid, Gu: liquid=1: 2～3,85～95 ℃ of temperature stir down and leached in 1 hour, take off assortedly according to impurity element control pH value fractionation precipitation, and condensing crystal makes the finished product lead nitrate.Mother liquor: one, two return precipitation to remove impurities, condensing crystal, three is female following with in the carbon ammonium and reclaim artificial white lead-ore, and waste liquid reclaims with the ammonium nitrate form.Main chemical reactions is:
(ore deposit)
7. make the processing and utilizing of active zinc flower waste liquid:
With the waste liquid sulfur acid ammonium behind the carbon ammonium neutralisation of sulphuric acid zinc and the purified solution of trace zinc, heating evaporation concentrates, crystallisation by cooling, produces the ammonium sulfate zinc composite chemical fertilizer that contains trace zinc.
Technological process synoptic diagram of the present invention is seen accompanying drawing 1
The present invention compared with prior art, major advantage be it directly take zinc ore as raw material, raw material sources are extensive; Take dilute sulfuric acid as leaching agent, with low cost; Have a more complete technical process of ratio, technical indicator is advanced, and the total interest rate of zinc ore is high, is conducive to the comprehensive utilization of mineral products, pollutes without " three wastes ", is conducive to environmental protection.
Example one, Yunnan Province's Huize zinc lead ore system active zinc flower
The raw ore main chemical is: Zn31.24%, pb20.65%.
Main processes: ore grinds, assorted, the heavy zinc of carbonization, activation calcination are taken off in sulfuric acid leaching, oxidation, displacement, the ammonium sulfate Zn complex fertilizers reclaims and the preparation of lead nitrate.
(1) ore ground processing condition:
Overflow type wet-milling, granularity-100 〉=95%
(2) sulfuric acid soaks the processing condition of zinc:
Sulfuric acid concentration: 140g/L
The sulfuric acid consumption: Gu: liquid=1: 3.5
Temperature of reaction: normal temperature
Reaction times: 1 hour
(3) iron removal by oxidation, manganese, the processing condition of flocculation desiliconisation, arsenic, lead:
Chlorinated lime consumption: iron: 1.3 times of manganese meter theoretical amount
Oxidizing temperature: 80 ℃
Carbon Ruzhong and pH value: 5.2
Flocculation agent consumption: 0.5% saturated solution of liquor capacity amount
Boiling time: 10 minutes
Time of repose: 2 hours
(4) processing condition of displacement copper removal, cadmium, nickel, secondary oxidation demanganize, iron:
Zinc powder particle size :-200 orders 〉=95%
Zinc powder consumption: copper, cadmium meter theoretical amount 1.6 times
Displacement temperature: 80 ℃
Time swap: 40 minutes
Secondary oxidation agent consumption: primary 10%
Secondary oxidation temperature: 80 ℃
Boiling time: 10 minutes
Time of repose: 1 hour
(5) processing condition of the heavy zinc of carbonization:
Ammonium bicarbonate solution concentration: saturated
In the carbon ammonium and the pH value: 6.8
Temperature of reaction: neutralize preceding 45 ℃, neutralize back 80 ℃
Contain the free alkali requirement in the waste liquid:＜0.5%
(6) calcination activatory processing condition:
Drying temperature: 300 ℃
Dry mass: moisture content＜5%
Calcination temperature: 600 ℃
The calcination time: 40 minutes
(7) processing condition of ammonium sulfate Zn complex fertilizers recovery:
Little evaporation concentration of boiling
The normal temperature crystallisation by cooling
Centrifuge dehydration dries
(8) leached mud prepares the processing condition of lead nitrate:
Concentration of nitric acid: 13%
Nitric acid dosage: Gu: liquid=1: 2
Temperature of reaction: 90 ℃
Reaction times: 1 hour
Fractionation precipitation takes off assorted pH value: 4.0
Evaporation concentration: double-effect evaporation
Drying temperature: 120 ℃
The obtained multiple fertilizer of active zinc flower, lead nitrate product and ammonium sulfate (zinc) of this example all meets the Tianjin company standard.
Example two, Zhenkang, Yunnan Province zinc ore system zinc sulfate
Raw ore main chemical: Zn48.33%, pb2.38%.
Main processes: ore grinds, sulfuric acid leaching, oxidation, replace, take off assorted, evaporation concentration, cooling crystallization, liquid waste disposal.
(1) ore ground processing condition:
With example one
(2) processing condition of sulfuric acid leaching:
Sulfuric acid concentration: 150g/l
The sulfuric acid consumption: Gu: liquid=1: 4
Temperature of reaction: normal temperature
Reaction times: 1 hour
(3) iron removal by oxidation, manganese, the processing condition of flocculation desiliconisation, arsenic, lead:
Chlorinated lime consumption: iron, manganese meter theoretical amount 1.2 times
Oxidizing temperature: 80 ℃
In the milk of lime and the pH value: 5.1
The flocculation agent consumption, boiling time, time of repose are with example one
(4) processing condition of displacement copper removal, cadmium, nickel, secondary oxidation demanganize, iron:
Zinc powder consumption: copper, cadmium, nickel meter theoretical amount 1.5 times
All the other are with example one
(5) evaporating and concentrating process condition:
Evaporation concentration form: reduction vaporization
Evaporation concentration temperature: boiling
Concentrated solution concentration: 50Be '
(6) crystallization and drying process condition:
Cooling crystallization temperature: normal temperature
Heat drying temperature: 120 ℃ (air blast)
(7) Recycling Mother Solution is used processing condition:
One mother, two mothers return evaporation concentration
Returning below three mothers to purify takes off assorted or the leaching complex acid
The obtained Zinc Sulphate Heptahydrate of this example meets the Tianjin company standard, also can the change condition produce standard compliant water or Zincomed.
Example 3: the plumbous zinc ore system active zinc flower of the Jian Shui of Yunnan Province
The raw ore main chemical is: Zn26.83%, pb14.32%.
Main processes: ore grinds, assorted, the heavy zinc of carbonization is taken off in sulfuric acid leaching, oxidation, displacement, activation calcination, multiple fertile recovery of zinc sulfate ammonium.
(1) ore ground processing condition:
With example one
(2) processing condition of sulfuric acid leaching:
Sulfuric acid concentration: 120g/l
The sulfuric acid consumption: Gu: liquid=1: 3
Temperature of reaction and time: with example one
(3) iron removal by oxidation, manganese, the processing condition of flocculation desiliconisation, arsenic, lead:
Chlorinated lime consumption: iron, manganese theoretical amount 1.4 times
All the other conditions are with example one
(4) processing condition of displacement copper removal, cadmium, nickel, secondary oxidation demanganize, iron:
Zinc powder consumption: copper, cadmium, nickel meter theoretical amount 1.8 times
All the other are with example one
(5) processing condition of the heavy zinc of carbonization:
In the carbon ammonium and the pH value: 6.5
All the other are with example one
(6) calcination activatory processing condition:
With example one
(7) processing condition of ammonium sulfate Zn complex fertilizers recovery:
With example one
(8) processing condition of leached mud processing and utilizing:
Leach lead skim leaded＞35%
Water is taken out and is washed till pH～6
Wash water is made acidleach complex acid water
Lead skim is sold (also can make lead salts such as lead nitrate) as lead ore concentrate
The ammonium sulfate Zn complex fertilizers of active zinc flower that this example is obtained and recovery all meets the Tianjin company standard, lead skim meets lead ore concentrate standard promulgated by the ministries or commissions of the Central Government.
Claims (5)
1, the preparation method of a kind of zinc sulfate and active zinc flower is characterized in that following steps:
1.1. zinc ore (containing Zn 〉=25%) in ball mill wet-milling to-100 orders 〉=95%,
1.2. leach the zinc in the zinc ore of having pulverized with the dilute sulphuric acid of 120～150 gram/liters, the dilute sulphuric acid consumption be the ore deposit (Gu): acid (liquid)=1:3～4 (in 1.1～1.2 times of zinc theoretical amount), agitation leach is 40～80 minutes under the normal temperature, purification of leaching liquor, slag is for further processing according to circumstances
1.3. leach liquor is heated to 80～90 ℃, add oxidization by bleaching powder iron, manganese (consumption is in 1.2～1.4 times of iron, manganese theoretical amount), stir with milk of lime and adjust PH to 5～5.2, and be heated to and boil, precipitation deironing, manganese,
1.4. the solution behind deironing, the manganese is heated to 75～85 ℃, and metallic impurity (the zinc powder consumption is 1.5～2 times in desire substitutional impurity metal theoretical amount) such as the zinc dust precipitation copper removal of adding-200 orders 〉=95%, nickel, cadmium stir displacement 40～60 minutes,
Be heated to 80～90 ℃ 1.5. will take off assorted liquid, add 10% chlorinated lime secondary oxidation eliminating minute manganese, iron of once oxidation deironing, manganese consumption, oxidation 10～20 minutes is stirred in boiling down,
1.6. scavenging solution is carried out evaporation concentration, cooling crystallization, produce finished product zinc sulfate,
1.7. scavenging solution is carried out the heavy zinc of carbonization, and calcination activation is produced the finished product active zinc flower,
1.8. the slag that the dilute sulphuric acid leaching section is produced, if the not leaded valuable metal that waits then discards, if slag contains valence containing lead, then use 11～13% nitric acid, Gu: liquid=1: 2～3,85～95 ℃ of leachings of temperature are adjusted the pH value fractionation precipitation and are taken off assorted, condensing crystal makes the finished product lead nitrate, one's old mother's liquid neutralizes with bicarbonate of ammonia, reclaims artificial white lead-ore, and waste liquid reclaims with the ammonium nitrate form.
When 2, being glue (iron salt hydrolysis thing, silicon-dioxide etc.) as the throw out as described in the claim 13, the corresponding measure of being taked, it is characterized in that, when adjusting the pH value, No. 3 flocculation agents (modified polyacrylamide) saturated solution that adds liquor capacity amount 0.5% is to promote adsorbing Chen Jiang And band fast except that impurity such as the arsenic in the solution, lead.
3, zinc sulfate preparation method as claimed in claim 16 is characterized in that:
31. with the scavenging solution heating, make it evaporation concentration to 45～55Be ',
32. will concentrate the solution of zinc sulfate cooling of back, make its supersaturation crystallization, separate drying and make the zinc sulfate finished product,
33. recycling of mother liquor: one, two mothers return evaporation concentration, return below three mothers to purify and take off assorted or the leaching complex acid.
4, active zinc flower preparation method as claimed in claim 17 is characterized in that:
41. adding saturated carbon ammonium solution to pH value in scavenging solution is 6.5～7.0, makes zinc subcarbonate,
42. zinc subcarbonate is dried to water content＜5% under 250～350 ℃, change 550～650 ℃ of roastings again over to, makes the finished product active zinc flower,
43. the waste liquid heating evaporation behind the heavy zinc concentrates, crystallisation by cooling, makes the ammonium sulfate zinc composite chemical fertilizer that contains trace zinc.
5, as zinc subcarbonate synthetic method as described in the claim 41, it is characterized in that:
51. in the chuck enamel reaction still,, stir the following solution of zinc sulfate that has purified with the neutralization of carbon ammonium to pH=6.5～7.0 in 40～45 ℃,
52. continue heated and stirred to 70～80 ℃, when free alkali was lower than 0.5%, the suction filtration rinsing can be handed over drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86108798A CN1008118B (en) | 1986-12-30 | 1986-12-30 | Prepn. of znso4 and active zno from zinc ore by entire wet-process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86108798A CN1008118B (en) | 1986-12-30 | 1986-12-30 | Prepn. of znso4 and active zno from zinc ore by entire wet-process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86108798A true CN86108798A (en) | 1988-08-03 |
| CN1008118B CN1008118B (en) | 1990-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86108798A Expired CN1008118B (en) | 1986-12-30 | 1986-12-30 | Prepn. of znso4 and active zno from zinc ore by entire wet-process |
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| CN (1) | CN1008118B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351240A (en) * | 2011-07-04 | 2012-02-15 | 杭州富阳新兴实业有限公司 | Production method of zinc sulfate monohydrate |
| CN102676820A (en) * | 2012-06-08 | 2012-09-19 | 大兴安岭云冶矿业开发有限公司 | Treatment method of zinc sulfate leach solution |
| CN103468963A (en) * | 2013-09-30 | 2013-12-25 | 西昌宏鑫实业有限公司 | Method for crystal separation of zinc and cadmium from zinciferous waste residues |
| CN105110364A (en) * | 2015-09-29 | 2015-12-02 | 卢润湖 | Method for preparing zinc sulfate |
| CN105692683A (en) * | 2016-03-17 | 2016-06-22 | 安徽颖达锌业发展有限公司 | Ultra-fine zinc oxide production technology |
| CN105714116A (en) * | 2016-03-16 | 2016-06-29 | 中南大学 | Method for removing copper, cadmium, nickel and cobalt out of zinc sulfate solution through one step |
| CN105779787A (en) * | 2016-03-16 | 2016-07-20 | 中南大学 | Method for deep removing nickel and cobalt impurities in zinc hydrometallurgy solution |
| CN105886763A (en) * | 2016-03-15 | 2016-08-24 | 中南大学 | Method for recovering cobalt from cobalt-containing solution |
| CN106241857A (en) * | 2016-08-18 | 2016-12-21 | 江苏万祥锌业有限公司 | A kind of nano zine oxide preparation technology |
| CN106834673A (en) * | 2016-12-28 | 2017-06-13 | 云南元晟新材料科技有限公司 | The chemical metallurgical method of willemite zinc series fine chemical product high |
| CN107287422A (en) * | 2017-08-16 | 2017-10-24 | 深圳市中金岭南有色金属股份有限公司丹霞冶炼厂 | Continuous deferrization technique in zinc hydrometallurgy |
| CN107500340A (en) * | 2017-09-29 | 2017-12-22 | 景县煜川工贸有限公司 | The recycling method of zinc-plated scrap iron and steel and zinc in material containing zinc |
| CN107739059A (en) * | 2017-08-31 | 2018-02-27 | 湖南佳纳能源科技有限公司 | A kind of method that nonferrous heavy metal material prepares battery level sulphate |
| CN108239701A (en) * | 2016-12-26 | 2018-07-03 | 北京有色金属研究总院 | A kind of method of lead zinc in high mud carbonate-type lead-zinc of synthetical recovery |
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-
1986
- 1986-12-30 CN CN86108798A patent/CN1008118B/en not_active Expired
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| CN102676820A (en) * | 2012-06-08 | 2012-09-19 | 大兴安岭云冶矿业开发有限公司 | Treatment method of zinc sulfate leach solution |
| CN103468963A (en) * | 2013-09-30 | 2013-12-25 | 西昌宏鑫实业有限公司 | Method for crystal separation of zinc and cadmium from zinciferous waste residues |
| CN105110364A (en) * | 2015-09-29 | 2015-12-02 | 卢润湖 | Method for preparing zinc sulfate |
| CN105886763A (en) * | 2016-03-15 | 2016-08-24 | 中南大学 | Method for recovering cobalt from cobalt-containing solution |
| CN105714116A (en) * | 2016-03-16 | 2016-06-29 | 中南大学 | Method for removing copper, cadmium, nickel and cobalt out of zinc sulfate solution through one step |
| CN105779787A (en) * | 2016-03-16 | 2016-07-20 | 中南大学 | Method for deep removing nickel and cobalt impurities in zinc hydrometallurgy solution |
| CN105692683A (en) * | 2016-03-17 | 2016-06-22 | 安徽颖达锌业发展有限公司 | Ultra-fine zinc oxide production technology |
| CN106241857A (en) * | 2016-08-18 | 2016-12-21 | 江苏万祥锌业有限公司 | A kind of nano zine oxide preparation technology |
| CN108239701A (en) * | 2016-12-26 | 2018-07-03 | 北京有色金属研究总院 | A kind of method of lead zinc in high mud carbonate-type lead-zinc of synthetical recovery |
| CN108239701B (en) * | 2016-12-26 | 2020-01-10 | 有研工程技术研究院有限公司 | Method for comprehensively recovering lead and zinc in high-mud carbonate type lead-zinc oxide ore |
| CN106834673A (en) * | 2016-12-28 | 2017-06-13 | 云南元晟新材料科技有限公司 | The chemical metallurgical method of willemite zinc series fine chemical product high |
| CN107287422A (en) * | 2017-08-16 | 2017-10-24 | 深圳市中金岭南有色金属股份有限公司丹霞冶炼厂 | Continuous deferrization technique in zinc hydrometallurgy |
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| CN107739059A (en) * | 2017-08-31 | 2018-02-27 | 湖南佳纳能源科技有限公司 | A kind of method that nonferrous heavy metal material prepares battery level sulphate |
| CN107500340B (en) * | 2017-09-29 | 2018-08-14 | 景县煜川工贸有限公司 | The recycling method of zinc-plated scrap iron and steel and zinc in material containing zinc |
| CN107500340A (en) * | 2017-09-29 | 2017-12-22 | 景县煜川工贸有限公司 | The recycling method of zinc-plated scrap iron and steel and zinc in material containing zinc |
| CN111235407A (en) * | 2020-03-04 | 2020-06-05 | 济源市鲁泰纳米材料有限公司 | Method for purifying aluminum-containing secondary zinc oxide leaching solution and aluminum removal method |
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| CN113277547B (en) * | 2021-05-11 | 2023-05-30 | 湖南博一环保科技有限公司 | Method for producing zinc sulfate by using low-zinc material |
| CN115710011A (en) * | 2022-11-30 | 2023-02-24 | 中冶瑞木新能源科技有限公司 | Method for recovering and preparing basic zinc carbonate from nickel-cobalt impurity-removing extraction back-extraction zinc liquid |
| CN115710011B (en) * | 2022-11-30 | 2024-03-19 | 中冶瑞木新能源科技有限公司 | Method for recycling and preparing basic zinc carbonate from nickel cobalt impurity removal extraction strip zinc liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1008118B (en) | 1990-05-23 |
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