CN102534212A - Method for separating low-concentration multiple metal ions through extraction and stepwise back-extraction - Google Patents

Method for separating low-concentration multiple metal ions through extraction and stepwise back-extraction Download PDF

Info

Publication number
CN102534212A
CN102534212A CN2010106152739A CN201010615273A CN102534212A CN 102534212 A CN102534212 A CN 102534212A CN 2010106152739 A CN2010106152739 A CN 2010106152739A CN 201010615273 A CN201010615273 A CN 201010615273A CN 102534212 A CN102534212 A CN 102534212A
Authority
CN
China
Prior art keywords
extraction
organic phase
low concentration
separating low
metal ions
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
CN2010106152739A
Other languages
Chinese (zh)
Inventor
刘美林
刘学
武彪
武名麟
臧宏
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.)
Beijing General Research Institute for Non Ferrous Metals
Original Assignee
Beijing General Research Institute for Non Ferrous Metals
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 Beijing General Research Institute for Non Ferrous Metals filed Critical Beijing General Research Institute for Non Ferrous Metals
Priority to CN2010106152739A priority Critical patent/CN102534212A/en
Publication of CN102534212A publication Critical patent/CN102534212A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The invention discloses a method for separating low-concentration multiple metal ions through extraction and stepwise back-extraction. By the method, once extraction and sequential stepwise back-extraction are adopted, a high multiple metal ion separating effect can be achieved, and an aim of purifying and enriching metal ions is fulfilled. By the method, indium, cadmium and zinc in zinc concentrate biologic leachate of Qinghai Province are separated, purified and enriched, and impurity iron metal ions are removed. A P2O4 extracting agent and sulfonated kerosene mixture is taken as an organic phase, the multiple metal ions are extracted into the organic phase at one time, and different stripping agents are adopted for stepwise back-extracting in turn, pure zinc, indium and cadmium ionic liquids are obtained, and excessive iron metal ions are removed. The method is easily applied industrially, a process flow is short, equipment configuration is simple, scale flexibility is high, cost is saved, profit is increased, the added value of ore development is improved and the competitive power of mine enterprises is enhanced. A technology for separating metal ions in a solution is a bottleneck for restricting the development of a wet metallurgical technology, and the perfection of the separation technology is powder for promoting the development of wet metallurgy.

Description

The method of a kind of extraction and the many metals ions of separating low concentration of stripping step by step
Technical field
The present invention relates to the method that a kind of utilization extraction-substep reextraction in hydrometallurgy field separates many metals ions.Simple, efficient, the easy row of this separation method realizes that many metals separate the purpose of comprehensive recovery simultaneously.
Background technology
Hydrometallurgy is characteristics such as short and environmentally friendly because of its reduced investment, instant effect, flow process, in industrial application, have obtained good economic benefit, social benefit and environmental benefit, obtain application more and more widely in field of metallurgy.Stripping technique and hydrometallurgy are closely related, and are the restraining factors of hydrometallurgy development, and GOLD FROM PLATING SOLUTION belongs to the feasibility that the ionic separation and purification has directly determined the hydrometallurgy scheme.This shows that stripping technique is the main impellent that hydrometallurgical technology advances.The landmark development of hydrometallurgy industrial applications all is because the development and the innovation of stripping technique.
Summary of the invention
The method that the purpose of this invention is to provide a kind of extraction and the many metals ions of separating low concentration of stripping step by step; Present method is succinct, efficient, be prone to row, plant factor is high; The easy realization of industrial application is a kind of novel method that the hydrometallurgy stripping technique is separated many metals ions.
For reaching the foregoing invention purpose, the present invention adopts following technical scheme:
Novel method adopts solvent extraction technology; Utilize extraction agent that different metal ionic binding ability is not waited; Thereby the extraction environmental system is required difference, and disposable valuable metal ions being extracted in the organic solvent that contains extraction agent adopted different reverse-extraction agent substep back extractions then; The different metal ion is transferred to respectively in the reverse-extraction agent from this organic solvent, realized the separation and the purifying of many metals ions.
Novel method is succinct, efficient, be prone to row, plant factor is high, and the easy realization of industrial application is a kind of novel method that the hydrometallurgy stripping technique is separated many metals ions.
Many metals ions of lower concentration leach liquor and the organic phase solution hybrid extraction that contains extraction agent, metals ion is transferred in the organic phase, and organic phase changes load organic phases into;
Leach liquor is extracted and becomes raffinate behind the metals ion and turn back to the leaching system;
Reverse-extraction agent of different nature is mixed respectively with load organic phases successively step by step, and substep is stripped and is obtained containing the strip liquor of corresponding metal ion solution respectively;
Metals ion in the load organic phases in the strip liquor that contains corresponding metals ion, is obtained different metal ionic purification enrichment solution by the reverse-extraction agent back extraction;
Load organic phases is stripped behind the metals ion, and the saponification of hydro-oxidation sodium solution changes the regeneration organic phase into after the homogeneous phase saponification;
The regeneration organic phase is returned extraction process and is continued cycle operation.
Waiting to separate many metal ion solutions is the zinc leaching residue biochemical lixivium, and iron content 4~4.1g/L, indium 5~5.5mg/L, cadmium 5~5.5mg/L, zinc 23~24g/L, pH are 1.5~2.0.
In the extraction process, the phase mixing time is 5min, compares (O/A) 2/10 (volume ratio).
The strip reverse-extraction agent of zinc and cadmium of substep is that concentration is the sulphuric acid soln of 150g/L.
The back extraction mixing time is 3min, and comparing (O/A) is 10/2 (volume ratio).
The reverse-extraction agent of substep back extraction indium is that concentration is the hydrochloric acid soln of 3mol/L.
A ferrous metal ion in the iron strip liquor.
For realizing the separation and purification of many metals ions in the low concentration solution, novel method is taked following plan (see figure 1):
1), shown in operation 1, will contain many metal ion solution and mix with the regeneration organic phase solution of 30%P204+70% sulfonated kerosene after the homogeneous phase saponification and extract, mixed phase is than (O/A) 2/10 (volume ratio), mixing time 5min.Organic phase is converted into load organic phases because of having obtained metals ion from aqueous phase, and water has lost metals ion and has been converted into raffinate, has accomplished the transfer of metals ion.
2), shown in operation 2, add reverse-extraction agent 1 in the load organic phases, mix 3min, compare (O/A) 10/2 (volume ratio).Zn and Cd be transferred to aqueous phase system, realized separating of Zn and Cd and other metals ion.
3), shown in operation 3.Add reverse-extraction agent 2 in the load organic phases of back extraction separation of Zn and Cd once more, mix 3min, compare (O/A) 10/2 (volume ratio).At this moment, dissipated metal In is transferred to aqueous phase system, has realized the separating of In and other metals ion, enrichment and purifying.
4), shown in operation 4.Through adding reverse-extraction agent 3 once more in the organic phase behind twice back extraction separating metal ion, mix 3min, compare (O/A)=10/2 (volume ratio).Fe is transferred to aqueous phase, has realized separation, the enrichment of Fe, and organic phase has obtained regeneration.
5), shown in operation (4), after stripping through substep, the metals ion in the load organic phases is all dissociated, organic phase has obtained regeneration, has accomplished metals ion separation and purification from aqueous phase solution, has shifted the once circulation of carrying.The regeneration organic phase turns back to the extraction link, and the separation and purification of beginning next round is carried with shifting.
The many metal ion solutions of above-described lower concentration are leached mud leach liquors after biology leaches of iron content, indium, cadmium and zinc, leach liquor iron content 4.07g/L, indium 5.29mg/L, cadmium 5.29mg/L, zinc 23.5g/L, and the pH value is 1.5~2.0.Organic phase is organic mixing solutions that 30% P204+70% sulfonated kerosene is formed, and organic phase is with the saponification of sodium hydroxide homogeneous phase, saponification degree 70%.Leach liquor mixes the back metals ion and is transferred in the organic phase by exchange with organic phase; Separate through clarification; Obtain more purified load organic phases; Different according to metals ion with the binding ability and the parsing separation condition of extraction agent, utilize different reverse-extraction agent substep back extractions to obtain comparatively purified metal ion solution, realize the separation and purification of metals ion.
Description of drawings
Fig. 1 is the FB(flow block) of the present invention's substep stripping method
Fig. 2 is a practical implementation FB(flow block) of the present invention
Embodiment
Embodiment 1:
This substep back extraction novel method is applied to useful metal ionic separation in the zinc ore concentrate biochemical lixivium behind the Xi Tieshan lead-zinc ore floating of Qinghai.Zinc ore concentrate after the flotation be plumbous zinc ore behind flotation operation, obtain contain zinc 47.62%, sulphur 30.77%, iron 13.07%, cadmium 0.34%, indium 0.0146% and plumbous 0.79% concentrate.For what effectively utilize association in this ore valency scattered metals indium and cadmium being arranged, reduce environmental pollution simultaneously, adopt biological leaching-out technique to handle this ore, can obtain good economic benefit and environmental benefit, is effective novel process that the type ore develops.
Below in conjunction with the practical implementation instance the present invention is described further.
(1) as shown in Figure 2, ore is carried out obtaining leach liquor A after bacterium leaching and the solid-liquid separation, iron content 4.07g/L, indium 5.29mg/L, cadmium 5.29mg/L, zinc 23.5g/L, pH are 1.8.
(2) operation 1. with through homogeneous phase saponified regeneration organic phase I hybrid extraction, mix 5min, compare (O/A) 2/10, the metals ion in the water leach liquor is extracted in the organic phase, regeneration organic phase I changes load organic phases F into.The water that loses metals ion changes raffinate B into.
(3) 2., join the reverse-extraction agent 1C of sulfur acid 150g/L among the load organic phases F, mix 3min, comparing is (O/A) 10/2 (volume ratio) in operation.Zinc among the load organic phases F, cadmium metal ion in Zn, Cd strip liquor, have been realized that zinc, cadmium separate with other metals ions by back extraction.
(4) 3., join the reverse-extraction agent 2D of hydrochloric 3mol/L among the load organic phases G, mix 3min, comparing is that (O/A) is 10/2 (volume ratio) in operation.Indium metal ion among the load organic phases G in the In strip liquor, has been realized separation, purifying and the enrichment of indium ion by back extraction.
(5) 4., join the reverse-extraction agent 3E of hydrochloric 6mol/L among the load organic phases H, mix 3min, comparing (O/A) is 10/2 (volume ratio) in operation.Ferrous metal ion among the load organic phases H in the Fe strip liquor, has been realized that the removal of impurities of iron ion separates by back extraction, and organic phase has obtained regeneration.
(6) 5.,, after washing, obtain regeneration organic phase I, accomplished the regeneration of organic phase, begun the extraction of next round sodium hydroxide solution and load organic phases H mixing 3min in operation.
Effect of the present invention is: adopt SX disposable with the low-concentration metallic ion extractuin in the aqueous phase solution in the organic phase that contains extraction agent; Substep is stripped the metals ion back extraction in the organic phase in the strip liquor that contains corresponding metals ion then, realizes separation, purifying and the enrichment of many metals ions.This invention is easy to realize industrial applications, and equipment is simple, and industrial scale is changeable, reduces investment outlay, and is a kind of novel method in the hydrometallurgy solution separating system.

Claims (11)

1. an extraction and the substep method of the many metals ions of separating low concentration of stripping, it is characterized in that: it may further comprise the steps:
1), many metals ions of lower concentration leach liquor with contain the organic phase solution hybrid extraction of extraction agent, metals ion is transferred in the organic phase, organic phase changes load organic phases into;
2), leach liquor is extracted and becomes raffinate behind the metals ion and turn back to the leaching system;
Reverse-extraction agent of different nature is mixed respectively with load organic phases successively step by step, and substep is stripped and is obtained containing the strip liquor of corresponding metal ion solution respectively;
3), the metals ion in the load organic phases in the strip liquor that contains corresponding metals ion, is obtained different metal ionic purification enrichment solution by the reverse-extraction agent back extraction;
4), load organic phases stripped behind the metals ion, the saponification of hydro-oxidation sodium solution changes the regeneration organic phase into after the homogeneous phase saponification;
5), the regeneration organic phase is returned extraction process continuation cycle operation.
2. the method for a kind of extraction according to claim 1 and the many metals ions of separating low concentration of stripping step by step; It is characterized in that: waiting to separate many metal ion solutions is the zinc leaching residue biochemical lixivium; Iron content 4~4.1g/L, indium 5~5.5mg/L, cadmium 5~5.5mg/L, zinc 23~24g/L, pH are 1.5~2.0.
3. the method for a kind of extraction according to claim 1 and the many metals ions of separating low concentration of stripping step by step, the organic phase that contains extraction agent is the mixed solution of 30%P204+70% sulfonated kerosene.
4. the method for a kind of extraction according to claim 3 and the many metals ions of separating low concentration of stripping step by step is characterized in that: the saponification degree of regeneration organic phase is 70%.
5. the method for a kind of extraction according to claim 2 and the many metals ions of separating low concentration of stripping step by step, in the extraction process, the phase mixing time is 5min, compares (O/A) 2/10 (volume ratio).
6. according to the method for claim 2 or the 5 described a kind of extractions and the many metals ions of separating low concentration of stripping step by step, it is characterized in that: the reverse-extraction agent of strip step by step zinc and cadmium is that concentration is the sulphuric acid soln of 150g/L.
7. according to the method for claim 1 or the 6 described a kind of extractions and the many metals ions of separating low concentration of stripping step by step, it is characterized in that: the back extraction mixing time is 3min, and comparing (O/A) is 10/2 (volume ratio).
8. the method for a kind of extraction according to claim 2 and the many metals ions of separating low concentration of stripping step by step is characterized in that: the reverse-extraction agent of substep back extraction indium is that concentration is the hydrochloric acid soln of 3mol/L.
9. the method for a kind of extraction according to claim 2 and the many metals ions of separating low concentration of stripping step by step is characterized in that: the reverse-extraction agent of substep back extraction iron is that concentration is the hydrochloric acid soln of 6mol/L.
10. according to the method for claim 1, it is characterized in that: change raffinate after the metals ion in the leach liquor is extracted into and turn back to the recycle of leaching operation with the 2 described a kind of extractions and the many metals ions of separating low concentration of stripping step by step.
11. the method for a kind of extraction according to claim 2 and the many metals ions of separating low concentration of stripping step by step is characterized in that: a ferrous metal ion in the iron strip liquor.
CN2010106152739A 2010-12-20 2010-12-20 Method for separating low-concentration multiple metal ions through extraction and stepwise back-extraction Pending CN102534212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010106152739A CN102534212A (en) 2010-12-20 2010-12-20 Method for separating low-concentration multiple metal ions through extraction and stepwise back-extraction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010106152739A CN102534212A (en) 2010-12-20 2010-12-20 Method for separating low-concentration multiple metal ions through extraction and stepwise back-extraction

Publications (1)

Publication Number Publication Date
CN102534212A true CN102534212A (en) 2012-07-04

Family

ID=46342231

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010106152739A Pending CN102534212A (en) 2010-12-20 2010-12-20 Method for separating low-concentration multiple metal ions through extraction and stepwise back-extraction

Country Status (1)

Country Link
CN (1) CN102534212A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034718A (en) * 2014-05-19 2014-09-10 宁波大学 Method for determining content of cadmium in soil by ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometry)
CN105800819A (en) * 2014-12-30 2016-07-27 北京有色金属研究总院 Method for high-efficiency separation of valuable metal ions in complex solution containing heavy metals
CN109022810A (en) * 2018-08-24 2018-12-18 肇庆市珈旺环境技术研究院 A method of separating and recovering valuable metal iron, manganese and scandium from tungsten slag
CN114717415A (en) * 2022-03-30 2022-07-08 有研资源环境技术研究院(北京)有限公司 Method for separating multi-metal mixed solution

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1031720A (en) * 1987-09-04 1989-03-15 冶金工业部长沙矿冶研究院 Process for recovering indium from high indium iron solution
CN1966745A (en) * 2006-11-20 2007-05-23 深圳市中金岭南有色金属股份有限公司韶关冶炼厂 Extraction and separation technology for reclaiming main impurity in indium in hydrochloric acid system
CN101451185A (en) * 2007-11-28 2009-06-10 灵宝市金源矿业有限责任公司 Comprehensive recovery method for ferro-sulphur ore containing copper, zinc and iron multi-metal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1031720A (en) * 1987-09-04 1989-03-15 冶金工业部长沙矿冶研究院 Process for recovering indium from high indium iron solution
CN1966745A (en) * 2006-11-20 2007-05-23 深圳市中金岭南有色金属股份有限公司韶关冶炼厂 Extraction and separation technology for reclaiming main impurity in indium in hydrochloric acid system
CN101451185A (en) * 2007-11-28 2009-06-10 灵宝市金源矿业有限责任公司 Comprehensive recovery method for ferro-sulphur ore containing copper, zinc and iron multi-metal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034718A (en) * 2014-05-19 2014-09-10 宁波大学 Method for determining content of cadmium in soil by ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometry)
CN105800819A (en) * 2014-12-30 2016-07-27 北京有色金属研究总院 Method for high-efficiency separation of valuable metal ions in complex solution containing heavy metals
CN109022810A (en) * 2018-08-24 2018-12-18 肇庆市珈旺环境技术研究院 A method of separating and recovering valuable metal iron, manganese and scandium from tungsten slag
CN114717415A (en) * 2022-03-30 2022-07-08 有研资源环境技术研究院(北京)有限公司 Method for separating multi-metal mixed solution

Similar Documents

Publication Publication Date Title
CN100552061C (en) A kind of method from copper-cobalt mine leachate removing calcium with solvent extraction magnesium
CN102010993B (en) Process for extracting nickel and cobalt from laterite by ore pulp extraction technology
CN1308466C (en) Production method of zinc indium by pressurized acid leaching neutralization precipitation separation indium from indium containing high iron zinc sulfide concentrate
CN102312083A (en) Method for extracting zinc indium and recovering iron from high-iron high indium zinc concentrate
CN103468979B (en) The method of scandium is reclaimed from smelting laterite-nickel ores iron aluminium slag
CN102181666A (en) Method for treating red soil nickel ore leaching liquid
CN103421952B (en) Synergic extraction agent and method for selectively extracting nickel in acidic nickeliferous solution through synergic extraction agent
CN107591584A (en) A kind of recoverying and utilizing method of waste lithium ion cell anode powder
CN103184337A (en) Separation and extraction method for nickel and cobalt in low-grade sulfide mineral bioleaching agent through synergistic extraction
CN102268537A (en) Method for extracting cobalt and nickel from laterite-nickel ore
CN104480325A (en) Method for extracting cobalt from cobalt-containing raw material
CN104726724A (en) Method for extracting scandium from nickel laterite ores
CN106834742A (en) It is a kind of to clean the method for extracting nickel cobalt
CN103243349A (en) Comprehensive zinc hydrometallurgy recovery system technique
CN106337134A (en) Technique for recovering indium from indium-containing soot
MX2013004855A (en) Method for bioleaching and solvent extraction with selective recovery of copper and zinc from polymetal concentrates of sulfides.
CN104164561A (en) Method for recovering iron from sulphuric acid leachate through extraction
CN106222454A (en) A kind of from the method containing indium flue dust recovery indium
CN102534212A (en) Method for separating low-concentration multiple metal ions through extraction and stepwise back-extraction
CN103898339A (en) Method for improving extraction and separation efficiency of nickel and cobalt in biological leaching liquid
CN105648234A (en) Separating method for zinc and cobalt in materials containing zinc and cobalt
CN105907964B (en) The separation method of vanadium, scandium, iron in a kind of acid solution
CN114959300A (en) Method for comprehensively extracting nickel and copper from high nickel matte
CN109022810B (en) Method for separating and recovering valuable metals of iron, manganese and scandium from tungsten slag
CN105420494A (en) Separation and enrichment treating process for lead-zinc tailing leaching solution

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120704