CN1250815A - Full-wet process for pre-treating lead-zinc ore - Google Patents

Full-wet process for pre-treating lead-zinc ore Download PDF

Info

Publication number
CN1250815A
CN1250815A CN98112670A CN98112670A CN1250815A CN 1250815 A CN1250815 A CN 1250815A CN 98112670 A CN98112670 A CN 98112670A CN 98112670 A CN98112670 A CN 98112670A CN 1250815 A CN1250815 A CN 1250815A
Authority
CN
China
Prior art keywords
filtrate
zinc
precipitation
lead
filter residue
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
Application number
CN98112670A
Other languages
Chinese (zh)
Inventor
刘帅安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIU SHUAI'AN
Original Assignee
LIU SHUAI'AN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LIU SHUAI'AN filed Critical LIU SHUAI'AN
Priority to CN98112670A priority Critical patent/CN1250815A/en
Publication of CN1250815A publication Critical patent/CN1250815A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

In the pretreatment method for lead-zinc ore, dilute nitric acid is used as leaching liquid and neutralizes with ammonia water, implements precipitation by steps through regulating pH value to remove impurity and obtain precipitate of lead and inc hydroxides, and then uses dilute sulphuric acid, hydrochloric acid or excess ammonia water to separate lead and zinc. This invented treatment method not only has low energy consumption, little environmental pollution,but also can jointly extract lead and zinc with leaching rate up to over 90%, and therefore, it is suitable for the pretreatment of lead-zinc ore with low grade, has good economic and social benefits, and is applicable to mine area and smeltery.

Description

The full-wet process for pre-treating of plumbous zinc ore
The full-wet process for pre-treating of plumbous zinc ore relates to the wet processing of metallic ore.
In the plumbous zinc ore of China's exploitation at present, be many with plumbous zinc symbiosis complex ore; The smelting of plumbous zinc is no matter be hydrometallurgy, or pyrometallurgical smelting, and big pogoniasis is carried out oxidizing roasting in advance, and the metallic sulfide in the mineral substance is converted into metal oxide, processes refining then.This method is produced plumbous zinc, the energy consumption height, and environmental pollution is serious, and can not handle low-grade plumbous zinc ore; More can not handle the oxidized ore that exists with carbonate form.The disclosed full wet method of CN1008118 produces zinc sulfate and active zinc flower is to be the chemical metallurgy method that raw material is produced zinc with the zinc ore, and this method can't be extracted respectively with zinc plumbous in plumbous zinc complex ore.And the objective of the invention is to overcome the problem that aforesaid method exists, and cut down the consumption of energy, reduce environmental pollution, both having made is the low plumbous zinc complex ore of grade, also can finely isolate lead and zinc; And a kind of method of directly producing purer plumbous zinc salt from ore is provided, has changed that to make plumbous zinc salt be the situation of raw material with high purity lead zinc ingot metal in the past.
The present invention adopts the chemical metallurgy method of full wet method that lead-zinc ore is carried out pre-treatment, not only overcomes the shortcoming of pyrometallurgical smelting, and a step isolate lead and zinc, thereby the leaching yield that improves plumbous zinc simultaneously keeps the purity of product.
The technical scheme that realizes the object of the invention is as follows:
1, nitric acid dousing
Ore is through being crushed to below 75 microns, with rare nitric acid dousing of 5N 2.5～3.0 hours, to the final acidity control of soak solution at 5～12 grams per liters, get filtrate after the filtration;
2, removal of impurities
The ammoniacal liquor that in filtrate, adds 5～8N, to the pH value of filtrate be 4.1～5.2, separate out Fe (OH) 3, Fe (OH) 2, and reddish-brown and the yellowish brown flockss such as oxyhydroxide of As, Sb, filter, filter residue is made other purification processes;
3, separate out plumbous zinc precipitation
Continuation adds the ammoniacal liquor of 5～8N in filtrate, be neutralized to pH value in the filtrate between 8.5～9.5, separates out Pb (OH) 2, Zn (OH) 2Faint yellow precipitation, after the filtration, filtrate gets NH after evaporation 4NO 3, filter residue is mainly the oxyhydroxide of Pb, Zn;
4, plumbous and zinc separates
Continue to add excessive ammonia in filter residue, throw out is partly dissolved, and filters, and the throw out that leaches is Pb (OH) 2, filtrate is the complex compound of Zn;
Add the dilute sulphuric acid of 5N in the precipitation of hydroxide of Pb, Zn, be partly dissolved, after the filtration, filtrate is ZnSO 4Filter residue is PbSO 4
The precipitation of hydroxide of Pb, Zn is soaked with HCl, the partly precipitated dissolving, and after the filtration, filter residue is PbCl 2, filtrate is ZnCl 2
Be described in further detail the present invention below.
The full-wet process for pre-treating of the plumbous zinc ore that this case proposes after ore is pulverized, is used rare nitric acid dousing, not only the zinc in the ore can be leached out, and can leach lead in the ore; Soak effectively, the leaching yield of zinc is 99%, and plumbous leaching yield is greater than 95%; After the solid-liquid separation, filtrate is implemented fractional precipitation by regulating pH value, after the solid-liquid separation, filtrate is implemented fractional precipitation after also can adding chlorinated lime or peroxide water or aerating oxygen oxidation earlier, in the time of between the ph value is adjusted in 4～5, remove impurity such as Si, Fe, As, Sb, filtrate purifies preferably; When the Ph value of filtrate was adjusted to 9 left and right sides, plumbous precipitation of hydroxide with zinc was separated out in the lump, and the impurity in the filter residue is less at this moment, separated with zinc plumbous with sulfuric acid, hydrochloric acid or ammoniacal liquor again, and filter residue is PbSO 4, PbCl 2, or Pb (OH) 2, filtrate is ZnSO 4, ZnCl 2, or the complex compound of Zn, lead after the separation and zinc can obtain lead pig, zinc ingot metal through smelting, and also can directly obtain other plumbous zinc products.
With the plumbous zinc ore of present method pre-treatment, not only energy consumption is low, and is low in the pollution of the environment, and after plumbous zinc can being extracted in the lump, separates again, smelts plumbous zinc product then; Therefore the plumbous zinc ore that present method especially is fit to the low-grade plumbous zinc ore of processing and exists with carbonate form has favorable economic benefit and social benefit.
Embodiment 1:
Ore 220 grams of learning from else's experience and pulverizing by analysis, contain zinc 22%, leaded 31%, rare nitric acid 200ml with 5N soaked 1.5 hours, constantly stirred simultaneously, and the final acidity of soak solution is 8 grams per liters, filter, filter residue is done other processing, gets filtrate 50ml, adds the ammoniacal liquor neutralization of 6N concentration, pH value to solution is 5, separate out brown xanchromatic precipitation, filter, it is 8.7 that filtrate continuation adds ammoniacal liquor to pH value, separate out faint yellow precipitation, after the filtration, discard filtrate, 20 gram precipitations continue to add excessive ammonia, a resolution of precipitate part obtains 18.5 gram Pb (OH) 2Precipitation adds NH in the filtrate 4CO 3Obtain 21 gram ZnCO 3Precipitation, plumbous zinc separation is finished.
Embodiment 2:
Get above-mentioned same ore, obtain the oxyhydroxide precipitate of Pb, Zn in fractional precipitation after, filter, the precipitation drying is weighed, and adds the dilute sulphuric acid 200ml of 5N, throw out is partly dissolved, and obtains white PbSO 4Precipitation 82.5 grams, filtrate is ZnSO 4

Claims (1)

1, a kind of full-wet process for pre-treating of plumbous zinc ore comprises that immersion, removal of impurities, precipitation separate out and separate, and it is characterized in that:
(1), nitric acid dousing
Ore is through being crushed to below 75 microns, with rare nitric acid dousing of 5N 2.5～3.0 hours to the final acidity control of soak solution at 5～12 grams per liters, get filtrate after the filtration;
(2), removal of impurities
The ammoniacal liquor that in filtrate, adds 5～8N, to the pH value of filtrate be 4.1～5.2, separate out Fe (OH) 3, Fe (OH) 2, and reddish-brown and the yellowish brown flockss such as oxyhydroxide of As, Sb, filter, filter residue is made other purification processes;
(3), separate out plumbous zinc precipitation
Continuation adds the ammoniacal liquor of 5～8N in filtrate, be neutralized to pH value in the filtrate between 8.5～9.5, separates out Pb (OH) 2, Zn (OH) 2Faint yellow precipitation, after the filtration, filtrate gets NH after evaporation 4NO 3, filter residue is mainly the oxyhydroxide of Pb, Zn;
(4), plumbous and zinc separates
Continue to add excessive ammonia in filter residue, throw out is partly dissolved, and filters, and the throw out that leaches is Pb (OH) 2, filtrate is the complex compound of Zn;
Add the dilute sulphuric acid of 5N in the precipitation of hydroxide of Pb, Zn, be partly dissolved, after the filtration, filtrate is ZnSO 4Filter residue is PbSO 4
The precipitation of hydroxide of Pb, Zn is soaked with HCl, the partly precipitated dissolving, and after the filtration, filter residue is PbCl 2, filtrate is ZnCl 2
CN98112670A 1998-10-09 1998-10-09 Full-wet process for pre-treating lead-zinc ore Pending CN1250815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN98112670A CN1250815A (en) 1998-10-09 1998-10-09 Full-wet process for pre-treating lead-zinc ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN98112670A CN1250815A (en) 1998-10-09 1998-10-09 Full-wet process for pre-treating lead-zinc ore

Publications (1)

Publication Number Publication Date
CN1250815A true CN1250815A (en) 2000-04-19

Family

ID=5222497

Family Applications (1)

Application Number Title Priority Date Filing Date
CN98112670A Pending CN1250815A (en) 1998-10-09 1998-10-09 Full-wet process for pre-treating lead-zinc ore

Country Status (1)

Country Link
CN (1) CN1250815A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100441707C (en) * 2006-01-13 2008-12-10 北京科技大学 Wet chemical method for lead zinc composite extraction from lead zinc tailings
CN101823761A (en) * 2010-05-26 2010-09-08 华中科技大学 Wet chemical recovery method of lead and zinc in burning solid products
CN101530826B (en) * 2009-03-13 2012-05-16 昆明理工大学 Method for combined treatment of high calcium and magnesium low-grade oxidized lead zinc ore by means of concentration
CN102787237A (en) * 2011-05-20 2012-11-21 中国科学院广州地球化学研究所 Process for recovering iron, copper, zinc, and lead in copper tailing by leaching
CN103467129A (en) * 2013-08-20 2013-12-25 陕西理工学院 Preparation process and application of foamed mine filling material containing lead and zinc smelting slag
CN106029921A (en) * 2014-02-18 2016-10-12 保尔伍斯股份有限公司 Process for reducing the amounts of zinc (Zn) and lead (Pb) in materials containing iron (Fe)
CN107460328A (en) * 2017-07-31 2017-12-12 重庆科技学院 A kind of method that lead and zinc are refined from the tutty of steel-making dust recovery
CN108191132A (en) * 2018-01-05 2018-06-22 江苏天楹环保能源成套设备有限公司 The recovery method of heavy metal in a kind of high villaumite acid waste water
CN108441641A (en) * 2018-04-21 2018-08-24 四环锌锗科技股份有限公司 A method of improving tannin germanium slag for comprehensive value
CN111072062A (en) * 2019-12-28 2020-04-28 华南理工大学 Resource utilization method for halogenated purified lead-acid battery waste

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100441707C (en) * 2006-01-13 2008-12-10 北京科技大学 Wet chemical method for lead zinc composite extraction from lead zinc tailings
CN101530826B (en) * 2009-03-13 2012-05-16 昆明理工大学 Method for combined treatment of high calcium and magnesium low-grade oxidized lead zinc ore by means of concentration
CN101823761A (en) * 2010-05-26 2010-09-08 华中科技大学 Wet chemical recovery method of lead and zinc in burning solid products
CN101823761B (en) * 2010-05-26 2012-05-23 华中科技大学 Wet chemical recovery method of lead and zinc in burning solid products
CN102787237A (en) * 2011-05-20 2012-11-21 中国科学院广州地球化学研究所 Process for recovering iron, copper, zinc, and lead in copper tailing by leaching
CN103467129A (en) * 2013-08-20 2013-12-25 陕西理工学院 Preparation process and application of foamed mine filling material containing lead and zinc smelting slag
CN103467129B (en) * 2013-08-20 2014-12-24 陕西理工学院 Preparation process and application of foamed mine filling material containing lead and zinc smelting slag
CN106029921A (en) * 2014-02-18 2016-10-12 保尔伍斯股份有限公司 Process for reducing the amounts of zinc (Zn) and lead (Pb) in materials containing iron (Fe)
CN107460328A (en) * 2017-07-31 2017-12-12 重庆科技学院 A kind of method that lead and zinc are refined from the tutty of steel-making dust recovery
CN108191132A (en) * 2018-01-05 2018-06-22 江苏天楹环保能源成套设备有限公司 The recovery method of heavy metal in a kind of high villaumite acid waste water
CN108441641A (en) * 2018-04-21 2018-08-24 四环锌锗科技股份有限公司 A method of improving tannin germanium slag for comprehensive value
CN111072062A (en) * 2019-12-28 2020-04-28 华南理工大学 Resource utilization method for halogenated purified lead-acid battery waste

Similar Documents

Publication Publication Date Title
CA2856341C (en) Method for producing high-purity nickel sulfate
EP1966401B1 (en) Method for recovering rare metals in a zinc leaching process
US4004991A (en) Two-stage pressure leaching process for zinc and iron bearing mineral sulphides
US4497778A (en) Microbial leaching of sulphide-containing ores
FI80076C (en) HYDROMETALLURGISKT FOERFARANDE FOER EXTRAHERING AV ZINK OCH AOTMINSTONE EN DEL AV KOPPARN OCH UTVINNING AV BLY OCH SILVER UR ZINKINNEHAOLLANDE SVAVELHALTIGA MATERIAL.
KR100953289B1 (en) A method for precipitating iron from a zinc sulphate solution as hematite
JPH11510857A (en) Nickel recovery method by hydrometallurgy from two different nickel mats
CN101037725A (en) Method for treating arsenic pollution of copper smelt industry
CN112410555B (en) Comprehensive recovery method for flotation silver concentrate from zinc hydrometallurgy acidic leaching residue
Harvey The hydrometallurgical extraction of zinc by ammonium carbonate: a review of the Schnabel process
CN1065685A (en) Zinc oxide preparing process by ammonia method
MX2011013483A (en) Method for leaching chalcopyrite concentrate.
CN1250815A (en) Full-wet process for pre-treating lead-zinc ore
US4305914A (en) Process for precipitating iron as jarosite with a low non-ferrous metal content
Dutrizac An overview of iron precipitation in hydrometallurgy
CN112458277A (en) Method for recovering valuable metals from deep-sea polymetallic sulphide ores
CN1288259C (en) Method for extracting zinc and indium from low-grade zinc concentrate by wet smelting
CN116397102A (en) Method for harmless recovery of copper and germanium from high-iron high-copper solution
CN1113520A (en) Hydrometallurgical process for the recovery of copper and zinc from copper and zinc materials
CN1031413C (en) Process for producing manganese sulfate and extracting silver from manganese-silver ore
US2392385A (en) Purification of manganese electrolytes
CN1580298A (en) New process for scale production of electrolytic metal zinc using zinc suboxide
CA3143346A1 (en) Procedure for producing germanium concentrate from metallurgical residues
CA3143370A1 (en) Procedure for producing silver concentrate from metallurgical residues
CN114635046B (en) Method for reducing zinc content in iron sediment slag in zinc hydrometallurgy process

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C57 Notification of unclear or unknown address
DD01 Delivery of document by public notice

Addressee: Liu Shuaian

Document name: payment instructions

C57 Notification of unclear or unknown address
DD01 Delivery of document by public notice

Addressee: Liu Shuaian

Document name: Expiration notice

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication