CN103695648B - A kind of method that in zinc wet smelting process, lead smelting gas separates with iron vitriol slag - Google Patents
A kind of method that in zinc wet smelting process, lead smelting gas separates with iron vitriol slag Download PDFInfo
- Publication number
- CN103695648B CN103695648B CN201310679843.4A CN201310679843A CN103695648B CN 103695648 B CN103695648 B CN 103695648B CN 201310679843 A CN201310679843 A CN 201310679843A CN 103695648 B CN103695648 B CN 103695648B
- Authority
- CN
- China
- Prior art keywords
- iron vitriol
- preneutralization
- vitriol slag
- liquid
- pulp
- 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.)
- Active
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
Abstract
nullThe present invention provides a kind of method that in zinc wet smelting process, lead smelting gas separates with iron vitriol slag，By solid-liquor separation, preneutralization liquid is divided into preneutralization underflow and preneutralization supernatant，Preneutralization underflow adds zinc electrolytic waste liquid or water carries out pulp，The ore pulp that pulp obtains pumps into iron vitriol slag decomposer，Heat up，It is slowly added concentrated sulphuric acid，Controlling reaction temperature is 90 DEG C～100 DEG C，Controlling the whole sulfuric acid concentration of reaction is 200～250g/l,The control response time is 4 h～5h，The iron vitriol slag obtained decomposes pulp slurry and enters pressure filter filter pressing，Obtain filtering residue and filtrate，Filtrate returns hydrometallurgy hot acid leaching system，Filtering residue is lead smelting gas，The method of the present invention makes lead content in lead smelting gas improve to 10% 15%，Silver content improves to 500g/t 1000 g/t，Efficiently solve zinc hydrometallurgy leaching lead smelting gas and iron vitriol slag mixes problem mutually，Be conducive to lead and the enriching and recovering of silver.
Description
Technical field
The present invention relates to zinc hydrometallurgy field, be specifically related to lead smelting gas in a kind of zinc wet smelting process and divide with iron vitriol slag
From method.
Background technology
At present, major part zinc hydrometallurgy operation in the whole nation is divided into neutral leaching, hot acid leaching, preneutralization and autunezite to remove
Ferrum etc., in actual production, there will be autunezite precocity and iron vitriol slag in various degree and lead smelting gas mix phenomenon mutually, cause lead silver
Slag flotation puies forward silver difficulty, and silver raising recovery rate is low.For this phenomenon, through theoretical and production practical study, siderotil is precocious main
Occurring in preneutralization operation, zinc hydrometallurgy preneutralization operation Main Function is to add liquid part acid after calcining heat of neutralization Ore Leaching,
Creating conditions for follow-up autunezite iron removal step, in the process, localized acidity is relatively low, at system excess ammonium radical ion, sodium
In ion and high iron solution, being easily formed siderotil, this part siderotil enters hot acid leaching system and is not easily decomposed, and is finally mixed into high acid leach residue
(lead smelting gas), causes lead smelting gas and iron vitriol slag to mix mutually and is difficult to separate problem.
Summary of the invention
It is an object of the invention to as solving shortcoming present in prior art, it is provided that lead silver in a kind of zinc wet smelting process
The method that slag separates with iron vitriol slag.
The technical solution used in the present invention: a kind of method that in zinc wet smelting process, lead smelting gas separates with iron vitriol slag, bag
Include following steps:
Step (1) preneutralization ore pulp processes: by solid-liquor separation, preneutralization liquid is divided into preneutralization underflow liquid and preneutralization
Supernatant, preneutralization supernatant send zinc hydrometallurgy autunezite system；
Step (2) pulp: add zinc electrolytic waste liquid in the preneutralization underflow liquid obtained in step 1 or water carries out pulp,
Control liquid-solid ratio is 4-5:1, and slurry time is 20 min-40min；
Step (3) iron vitriol slag decomposes: the ore pulp that step 2 pulp obtains pumps into iron vitriol slag decomposer, again adds zinc electrolysis
Waste liquid or water are 8-10:1 to liquid-solid ratio, heat up, and are slowly added concentrated sulphuric acid, and controlling reaction temperature is 90 DEG C～100
DEG C, controlling reacting thiourea acid concentration is 200 g/l～250g/l, and the control response time is 4 h～5h；
Step (4) filter pressing: iron vitriol slag step 3 obtained decomposes pulp slurry and enters pressure filter filter pressing, obtains filtering residue and filter
Liquid, filtrate returns hydrometallurgy hot acid leaching system, and described filtering residue is lead smelting gas, obtains the lead content in lead smelting gas at 10%-
15%, silver content is at 500 g/t-1000g/t.
Further, described step 3 takes iron vitriol slag decomposer pulp slurry and utilizes siderotil content in material phase analysis detection slag,
When siderotil content is less than 5%, i.e. reaction terminates.
Further, in described step 3, iron vitriol slag decomposer is 30 m3-40m3。
Iron vitriol slag decomposes primary chemical equation:
2MeFe3(S04)2(OH)6+6H2SO4=Me2SO4+3Fe2(S04)3+12H2O
The invention has the beneficial effects as follows: being decomposed by the iron vitriol slag in the ore pulp after pulp by high temperature peracid, filter pressing obtains
Lead smelting gas in lead content improved to 10%-15% by original 3%-5%, silver content is improved by original 150g/t-250 g/t
To 500g/t-1000 g/t, efficiently solve zinc hydrometallurgy and leach two slags (lead smelting gas and iron vitriol slag) and mix problem mutually, make leaching
Two slags (lead smelting gas and iron vitriol slag) thoroughly separate, beneficially lead and the enriching and recovering of silver, reclaim lead for lead smelting gas and flotation carries silver
Creating advantage, this technique has promotional value widely.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
Below in conjunction with embodiments of the invention, technical scheme is clearly and completely described.
Embodiment 1
(1) preneutralization ore pulp processes: by solid-liquor separation, preneutralization liquid is divided into preneutralization underflow liquid and preneutralization supernatant
Liquid, preneutralization supernatant send zinc hydrometallurgy autunezite system；
(2) pulp: add zinc electrolytic waste liquid in the preneutralization underflow liquid obtained in step 1 or water carries out pulp, controls
Liquid-solid ratio is 4:1, and slurry time is 20 min；
(3) iron vitriol slag decomposes: the ore pulp that step 2 pulp obtains is pumped into 30-40m3Iron vitriol slag decomposer, again zincification electricity
Liquid waste solution or water are 8:1 to liquid-solid ratio, heat up, and are slowly added concentrated sulphuric acid, and controlling reaction temperature is 90 DEG C, control anti-
Answering sulfuric acid concentration is 200g/l, and the control response time is 4 h, takes iron vitriol slag decomposer pulp slurry and utilizes in material phase analysis detection slag
Siderotil content, when siderotil content is less than 5%, i.e. reaction terminates；
(4) filter pressing: iron vitriol slag step 3 obtained decomposes pulp slurry and enters pressure filter filter pressing, obtains filtering residue and filtrate, filter
Slag returns hydrometallurgy hot acid leaching system through outer row, filtrate, and described filtering residue is lead smelting gas, and the lead content obtained in lead smelting gas exists
10%, silver content is at 500 g/t.
Embodiment 2
(1) preneutralization ore pulp processes: by solid-liquor separation, preneutralization liquid is divided into preneutralization underflow liquid and preneutralization supernatant
Liquid, preneutralization supernatant send zinc hydrometallurgy autunezite system；
(2) pulp: add zinc electrolytic waste liquid in the preneutralization underflow obtained in step 1 or water carries out pulp, control liquid
Gu than for 4.5:1, slurry time is 30 min；
(3) iron vitriol slag decomposes: the ore pulp that step 2 pulp obtains is pumped into 30-40m3Iron vitriol slag decomposer, again zincification electricity
Liquid waste solution or water are 9:1 to liquid-solid ratio, heat up, and are slowly added concentrated sulphuric acid, and controlling reaction temperature is 95 DEG C, control anti-
Answering sulfuric acid concentration is 230 g/l, and the control response time is 4.5h, takes iron vitriol slag decomposer pulp slurry and utilizes material phase analysis to detect
Siderotil content in slag, when siderotil content is less than 5%, i.e. reaction terminates；
(4) filter pressing: iron vitriol slag step 3 obtained decomposes pulp slurry and enters pressure filter filter pressing, obtains filtering residue and filtrate, filter
Slag returns hydrometallurgy hot acid leaching system through outer row, filtrate, and described filtering residue is lead smelting gas, and the lead content obtained in lead smelting gas exists
12%, silver content is at 800 g/t.
Embodiment 3
(1) preneutralization ore pulp processes: by solid-liquor separation, preneutralization liquid is divided into preneutralization underflow liquid and preneutralization supernatant
Liquid, preneutralization supernatant send zinc hydrometallurgy autunezite system；
(2) pulp: add zinc electrolytic waste liquid in the preneutralization underflow liquid obtained in step 1 or water carries out pulp, controls
Liquid-solid ratio is 5:1, and slurry time is 40min；
(3) iron vitriol slag decomposes: the ore pulp that step 2 pulp obtains is pumped into 30-40m3Iron vitriol slag decomposer, again zincification electricity
Liquid waste solution or water are 10:1 to liquid-solid ratio, heat up, and are slowly added concentrated sulphuric acid, and controlling reaction temperature is 100 DEG C, controls
Reacting thiourea acid concentration is 250g/l, and the control response time is 5h, takes iron vitriol slag decomposer pulp slurry and utilizes material phase analysis to detect slag
Middle siderotil content, when siderotil content is less than 5%, i.e. reaction terminates；
(4) filter pressing: iron vitriol slag step 3 obtained decomposes pulp slurry and enters pressure filter filter pressing, obtains filtering residue and filtrate, filter
Slag returns hydrometallurgy hot acid leaching system through outer row, filtrate, and described filtering residue is lead smelting gas, and the lead content obtained in lead smelting gas exists
15%, silver content is at 1000g/t.
Claims (3)
1. the method that in a zinc wet smelting process, lead smelting gas separates with iron vitriol slag, it is characterised in that comprise the steps:
Step (1) preneutralization ore pulp processes: by solid-liquor separation, preneutralization liquid is divided into preneutralization underflow liquid and preneutralization supernatant
Liquid, preneutralization supernatant send zinc hydrometallurgy autunezite system；
Step (2) pulp: add zinc electrolytic waste liquid in the preneutralization underflow liquid obtained in step 1 or water carries out pulp, controls
Liquid-solid ratio is 4-5:1, and slurry time is 20 min-40min；
Step (3) iron vitriol slag decomposes: the ore pulp that step 2 pulp obtains pumps into iron vitriol slag decomposer, again adds zinc electrolytic waste liquid
Or water is 8-10:1 to liquid-solid ratio, heating up, be slowly added concentrated sulphuric acid, controlling reaction temperature is 90 DEG C～100 DEG C, control
Reacting thiourea acid concentration processed is 200 g/l～250g/l, and the control response time is 4 h～5h；
Step (4) filter pressing: iron vitriol slag step 3 obtained decomposes pulp slurry and enters pressure filter filter pressing, obtains filtering residue and filtrate, filter
Liquid returns hydrometallurgy hot acid leaching system, and described filtering residue is lead smelting gas.
A kind of method that in zinc wet smelting process, lead smelting gas separates with iron vitriol slag, its feature exists
In, described step 3 takes iron vitriol slag decomposer pulp slurry and utilizes siderotil content in material phase analysis detection slag, when siderotil content is less than
When 5%, i.e. reaction terminates.
A kind of method that in zinc wet smelting process, lead smelting gas separates with iron vitriol slag, its feature exists
In, in described step 3, iron vitriol slag decomposer is 30 m3-40m3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310679843.4A CN103695648B (en) | 2013-12-15 | 2013-12-15 | A kind of method that in zinc wet smelting process, lead smelting gas separates with iron vitriol slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310679843.4A CN103695648B (en) | 2013-12-15 | 2013-12-15 | A kind of method that in zinc wet smelting process, lead smelting gas separates with iron vitriol slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103695648A CN103695648A (en) | 2014-04-02 |
| CN103695648B true CN103695648B (en) | 2016-08-10 |
Family
ID=50357307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310679843.4A Active CN103695648B (en) | 2013-12-15 | 2013-12-15 | A kind of method that in zinc wet smelting process, lead smelting gas separates with iron vitriol slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103695648B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179756A (en) * | 2018-09-26 | 2019-01-11 | 衢州华友钴新材料有限公司 | A kind for the treatment of process purifying SS from hydrometallurgy cobalt copper solution |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148688B (en) * | 2016-08-16 | 2018-02-09 | 白银有色集团股份有限公司 | A kind of zinc hydrometallurgy leaches heavy iron process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002018395A (en) * | 2000-07-06 | 2002-01-22 | Taiheiyo Cement Corp | Treating method for waste |
| CN101838745A (en) * | 2010-04-15 | 2010-09-22 | 赤峰中色库博红烨锌业有限公司 | Zinc hydrometallurgy process with high yield by precipitating alum and removing iron |
| CN102071325A (en) * | 2011-02-18 | 2011-05-25 | 赤峰中色库博红烨锌业有限公司 | Neutralization process for wet-process zinc extraction high-acid-leaching low-pollution jarosite |
| CN102094126A (en) * | 2010-11-10 | 2011-06-15 | 白银有色集团股份有限公司 | Process for smelting zinc with wet method of high temperature and high acid-jarosite iron removing-iron vitriol slag pickling by two stages |
| CN102162032A (en) * | 2011-03-14 | 2011-08-24 | 云南罗平锌电股份有限公司 | Method for recovering lead and silver from purification slag of zinc hydrometallurgy |
| CN102676805A (en) * | 2012-05-30 | 2012-09-19 | 巴彦淖尔紫金有色金属有限公司 | Low grade zinc concentrate associated lead and silver recovery process |
| CN102719675A (en) * | 2012-06-18 | 2012-10-10 | 山东国大黄金股份有限公司 | Method for comprehensively recovering zinc, lead and silver from waste residues generated in zinc smelting |
-
2013
- 2013-12-15 CN CN201310679843.4A patent/CN103695648B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002018395A (en) * | 2000-07-06 | 2002-01-22 | Taiheiyo Cement Corp | Treating method for waste |
| CN101838745A (en) * | 2010-04-15 | 2010-09-22 | 赤峰中色库博红烨锌业有限公司 | Zinc hydrometallurgy process with high yield by precipitating alum and removing iron |
| CN102094126A (en) * | 2010-11-10 | 2011-06-15 | 白银有色集团股份有限公司 | Process for smelting zinc with wet method of high temperature and high acid-jarosite iron removing-iron vitriol slag pickling by two stages |
| CN102071325A (en) * | 2011-02-18 | 2011-05-25 | 赤峰中色库博红烨锌业有限公司 | Neutralization process for wet-process zinc extraction high-acid-leaching low-pollution jarosite |
| CN102162032A (en) * | 2011-03-14 | 2011-08-24 | 云南罗平锌电股份有限公司 | Method for recovering lead and silver from purification slag of zinc hydrometallurgy |
| CN102676805A (en) * | 2012-05-30 | 2012-09-19 | 巴彦淖尔紫金有色金属有限公司 | Low grade zinc concentrate associated lead and silver recovery process |
| CN102719675A (en) * | 2012-06-18 | 2012-10-10 | 山东国大黄金股份有限公司 | Method for comprehensively recovering zinc, lead and silver from waste residues generated in zinc smelting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179756A (en) * | 2018-09-26 | 2019-01-11 | 衢州华友钴新材料有限公司 | A kind for the treatment of process purifying SS from hydrometallurgy cobalt copper solution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103695648A (en) | 2014-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104379778B (en) | From the method for complex oxide ore deposit and sulfide mine recovery indium, silver, gold and other rare metals, noble metal and base metal | |
| Li et al. | Solvent extraction of vanadium from a stone coal acidic leach solution using D2EHPA/TBP: Continuous testing | |
| CN102766765B (en) | Zinc oxide powder recycling method | |
| CN105452497B (en) | From complicated base material synthetical recovery metal | |
| CN103667720B (en) | Method for recovering zinc, indium, iron, and lead from high-iron zinc oxide mixture smelted with zinc | |
| CN102312083A (en) | Method for extracting zinc indium and recovering iron from high-iron high indium zinc concentrate | |
| CN102828025B (en) | Method for extracting V2O5 from stone coal navajoite | |
| CA2560594A1 (en) | Recovery of metals from oxidised metalliferous materials | |
| JP2016108664A (en) | High purity scandium recovery method | |
| CN102851496B (en) | Treatment method of high-indium high-iron zinc concentrate | |
| CN104928469B (en) | The method of demagging during manganese spar sulfuric acid leaching | |
| CN107190142B (en) | A kind of production method of richness antimony gold concentrate synthetical recovery | |
| WO2013129017A1 (en) | Method for recovering gold adsorbed on activated carbon and gold manufacturing process using same | |
| CN109055760A (en) | A kind of method of the high arsenic germanium material Ti recovery of high zinc | |
| CN102296180B (en) | Method for separating tungsten, molybdenum and bismuth in bismuth sulfide ore concentrate | |
| CN103484694A (en) | Method for extracting bismuth from copper-bismuth concentrate | |
| CN103695648B (en) | A kind of method that in zinc wet smelting process, lead smelting gas separates with iron vitriol slag | |
| CN107287421A (en) | A kind of process from hydrochloric acid leaching system extracting and refining molysite | |
| CN106148688A (en) | A kind of zinc hydrometallurgy leaches heavy iron process | |
| CN103194598A (en) | Method for improving recovery rate of gold ore difficult to treat by adopting sulfuric acid leaching reduction process | |
| RU2628946C2 (en) | PREPARATION METHOD OF PURE ELECTROLYTIC CONDUCTOR CuSo4 FROM MULTICOMPONENT SOLUTIONS AND ITS REGENERATION, WHEN PRODUCING CATHODE COPPER BY ELECTROLYSIS WITH INSOLUBLE ANODE | |
| CN103937975A (en) | Method for directly extracting silver from wet method zinc smelting flotation silver concentrates | |
| CN103468947A (en) | Hydrometallurgical method for separating and extracting Mn, Fe, Pb and Ag from silver-manganese ore | |
| CN107746965B (en) | A kind of method of germanium vacuum distillation slag recovery indium germanium | |
| CN103266227B (en) | Method for extracting silver in iron ore sintering smoke dust |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |