CA1317273C - Recuperation du germanium dans des solutions aqueuses par extraction au solvant - Google Patents

Recuperation du germanium dans des solutions aqueuses par extraction au solvant

Info

Publication number: CA1317273C
Authority: CA; Canada
Prior art keywords: organic phase; d2ehpa; acid; volume; extraction
Prior art date: 1988-08-26
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.): Expired - Lifetime

Application number

CA000575886A

Other languages

English (en)

Inventor

Daniel A.D. Boateng

Victor N. Saleh

David A. Neudorf

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.)

Teck Metals Ltd

Original Assignee

Teck Metals Ltd

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.)

1988-08-26

Filing date

1988-08-26

Publication date

1993-05-04

1988-08-26 Application filed by Teck Metals Ltd filed Critical Teck Metals Ltd

1988-08-26 Priority to CA000575886A priority Critical patent/CA1317273C/fr

1988-08-29 Priority to US07/237,742 priority patent/US4915919A/en

1988-09-07 Priority to EP88308263A priority patent/EP0313201A1/fr

1988-09-09 Priority to JP63224866A priority patent/JPH01122925A/ja

1993-05-04 Application granted granted Critical

1993-05-04 Publication of CA1317273C publication Critical patent/CA1317273C/fr

2010-05-04 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

229910052732 germanium Inorganic materials 0.000 title claims abstract description 80
GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 title claims abstract description 73
238000000638 solvent extraction Methods 0.000 title claims abstract description 12
238000011084 recovery Methods 0.000 title description 10
239000007864 aqueous solution Substances 0.000 title description 5
239000012074 organic phase Substances 0.000 claims abstract description 152
238000000034 method Methods 0.000 claims abstract description 59
239000002253 acid Substances 0.000 claims abstract description 56
229910052738 indium Inorganic materials 0.000 claims abstract description 30
239000003085 diluting agent Substances 0.000 claims abstract description 29
229910052787 antimony Inorganic materials 0.000 claims abstract description 25
150000002923 oximes Chemical class 0.000 claims abstract description 25
229910052793 cadmium Inorganic materials 0.000 claims abstract description 24
229910052725 zinc Inorganic materials 0.000 claims abstract description 20
229910052785 arsenic Inorganic materials 0.000 claims abstract description 18
239000004215 Carbon black (E152) Substances 0.000 claims abstract description 14
229910052802 copper Inorganic materials 0.000 claims abstract description 14
229930195733 hydrocarbon Natural products 0.000 claims abstract description 14
150000002430 hydrocarbons Chemical class 0.000 claims abstract description 12
LJKDOMVGKKPJBH-UHFFFAOYSA-N 2-ethylhexyl dihydrogen phosphate Chemical compound CCCCC(CC)COP(O)(O)=O LJKDOMVGKKPJBH-UHFFFAOYSA-N 0.000 claims abstract description 10
238000000622 liquid--liquid extraction Methods 0.000 claims abstract description 10
SLCANKHLTWZHRV-BMRADRMJSA-N (7e)-5,8-diethyl-7-hydroxyiminododecan-6-ol Chemical compound CCCCC(CC)C(O)C(=N\O)\C(CC)CCCC SLCANKHLTWZHRV-BMRADRMJSA-N 0.000 claims abstract description 5
150000007513 acids Chemical class 0.000 claims abstract description 4
239000000243 solution Substances 0.000 claims description 60
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 36
239000012527 feed solution Substances 0.000 claims description 30
239000011701 zinc Substances 0.000 claims description 25
239000010949 copper Substances 0.000 claims description 21
239000000203 mixture Substances 0.000 claims description 21
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 17
229910000147 aluminium phosphate Inorganic materials 0.000 claims description 17
APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 17
229910052751 metal Inorganic materials 0.000 claims description 14
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
235000011149 sulphuric acid Nutrition 0.000 claims description 12
BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 11
239000001117 sulphuric acid Substances 0.000 claims description 11
CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 10
WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 10
239000002184 metal Substances 0.000 claims description 10
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 8
238000000926 separation method Methods 0.000 claims description 7
239000011260 aqueous acid Substances 0.000 claims description 3
229910052742 iron Inorganic materials 0.000 abstract description 9
239000003929 acidic solution Substances 0.000 abstract description 3
238000000605 extraction Methods 0.000 description 107
239000012071 phase Substances 0.000 description 34
239000003350 kerosene Substances 0.000 description 26
239000008346 aqueous phase Substances 0.000 description 21
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
230000003750 conditioning effect Effects 0.000 description 18
239000003607 modifier Substances 0.000 description 18
238000005191 phase separation Methods 0.000 description 18
230000001143 conditioned effect Effects 0.000 description 17
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 15
238000005201 scrubbing Methods 0.000 description 15
150000002500 ions Chemical class 0.000 description 10
230000008929 regeneration Effects 0.000 description 9
238000011069 regeneration method Methods 0.000 description 9
239000000126 substance Substances 0.000 description 9
229910017784 Sb In Inorganic materials 0.000 description 8
238000000658 coextraction Methods 0.000 description 8
239000000839 emulsion Substances 0.000 description 8
239000012492 regenerant Substances 0.000 description 8
230000002378 acidificating effect Effects 0.000 description 7
230000015572 biosynthetic process Effects 0.000 description 7
230000000694 effects Effects 0.000 description 7
239000012535 impurity Substances 0.000 description 7
235000011007 phosphoric acid Nutrition 0.000 description 7
YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 6
235000019647 acidic taste Nutrition 0.000 description 6
239000002904 solvent Substances 0.000 description 6
VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 5
125000003118 aryl group Chemical group 0.000 description 5
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
150000004880 oxines Chemical class 0.000 description 5
150000003014 phosphoric acid esters Chemical class 0.000 description 5
239000002244 precipitate Substances 0.000 description 5
239000007787 solid Substances 0.000 description 5
NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 5
239000011686 zinc sulphate Substances 0.000 description 5
235000009529 zinc sulphate Nutrition 0.000 description 5
YWACCMLWVBYNHR-UHFFFAOYSA-N 7-(5-ethylnonan-2-yl)quinolin-8-ol Chemical compound C1=CC=NC2=C(O)C(C(C)CCC(CC)CCCC)=CC=C21 YWACCMLWVBYNHR-UHFFFAOYSA-N 0.000 description 4
PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
125000005907 alkyl ester group Chemical group 0.000 description 4
150000004945 aromatic hydrocarbons Chemical class 0.000 description 4
230000008901 benefit Effects 0.000 description 4
239000000047 product Substances 0.000 description 4
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
-1 5,3-diethyl-7-hydroxy-6-dodecanone oxime Chemical group 0.000 description 3
150000001338 aliphatic hydrocarbons Chemical class 0.000 description 3
238000004458 analytical method Methods 0.000 description 3
239000012141 concentrate Substances 0.000 description 3
239000000284 extract Substances 0.000 description 3
239000013067 intermediate product Substances 0.000 description 3
239000000463 material Substances 0.000 description 3
JPGXOMADPRULAC-UHFFFAOYSA-N 1-[butoxy(butyl)phosphoryl]oxybutane Chemical compound CCCCOP(=O)(CCCC)OCCCC JPGXOMADPRULAC-UHFFFAOYSA-N 0.000 description 2
GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
239000003513 alkali Substances 0.000 description 2
RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 description 2
150000001875 compounds Chemical class 0.000 description 2
238000004821 distillation Methods 0.000 description 2
229910052733 gallium Inorganic materials 0.000 description 2
ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
125000001183 hydrocarbyl group Chemical group 0.000 description 2
238000009854 hydrometallurgy Methods 0.000 description 2
229910052500 inorganic mineral Inorganic materials 0.000 description 2
239000007788 liquid Substances 0.000 description 2
150000002739 metals Chemical class 0.000 description 2
235000010755 mineral Nutrition 0.000 description 2
239000011707 mineral Substances 0.000 description 2
238000011020 pilot scale process Methods 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
229910052938 sodium sulfate Inorganic materials 0.000 description 2
235000011152 sodium sulphate Nutrition 0.000 description 2
238000003756 stirring Methods 0.000 description 2
229910021653 sulphate ion Inorganic materials 0.000 description 2
STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 2
229940093635 tributyl phosphate Drugs 0.000 description 2
NSBGJRFJIJFMGW-UHFFFAOYSA-N trisodium;stiborate Chemical compound [Na+].[Na+].[Na+].[O-][Sb]([O-])([O-])=O NSBGJRFJIJFMGW-UHFFFAOYSA-N 0.000 description 2
XMTQQYYKAHVGBJ-UHFFFAOYSA-N 3-(3,4-DICHLOROPHENYL)-1,1-DIMETHYLUREA Chemical compound CN(C)C(=O)NC1=CC=C(Cl)C(Cl)=C1 XMTQQYYKAHVGBJ-UHFFFAOYSA-N 0.000 description 1
SUBDBMMJDZJVOS-UHFFFAOYSA-N 5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole Chemical compound N=1C2=CC(OC)=CC=C2NC=1S(=O)CC1=NC=C(C)C(OC)=C1C SUBDBMMJDZJVOS-UHFFFAOYSA-N 0.000 description 1
239000005725 8-Hydroxyquinoline Substances 0.000 description 1
150000004325 8-hydroxyquinolines Chemical class 0.000 description 1
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
101100411608 Dictyostelium discoideum racL gene Proteins 0.000 description 1
229910019142 PO4 Inorganic materials 0.000 description 1
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
238000002441 X-ray diffraction Methods 0.000 description 1
239000005083 Zinc sulfide Substances 0.000 description 1
239000004480 active ingredient Substances 0.000 description 1
239000000654 additive Substances 0.000 description 1
238000013019 agitation Methods 0.000 description 1
125000001931 aliphatic group Chemical group 0.000 description 1
229910052783 alkali metal Inorganic materials 0.000 description 1
125000000217 alkyl group Chemical group 0.000 description 1
229940037003 alum Drugs 0.000 description 1
150000001491 aromatic compounds Chemical class 0.000 description 1
239000003637 basic solution Substances 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
239000000470 constituent Substances 0.000 description 1
230000002844 continuous effect Effects 0.000 description 1
238000010924 continuous production Methods 0.000 description 1
238000001816 cooling Methods 0.000 description 1
150000005690 diesters Chemical class 0.000 description 1
238000010790 dilution Methods 0.000 description 1
239000012895 dilution Substances 0.000 description 1
238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
238000005868 electrolysis reaction Methods 0.000 description 1
239000008151 electrolyte solution Substances 0.000 description 1
238000005363 electrowinning Methods 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
238000011067 equilibration Methods 0.000 description 1
150000002148 esters Chemical class 0.000 description 1
HCIQUGMKXQZZMG-UHFFFAOYSA-N ethyl hexyl hydrogen phosphate Chemical compound CCCCCCOP(O)(=O)OCC HCIQUGMKXQZZMG-UHFFFAOYSA-N 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000001914 filtration Methods 0.000 description 1
239000006260 foam Substances 0.000 description 1
QHGIKMVOLGCZIP-UHFFFAOYSA-N germanium dichloride Chemical class Cl[Ge]Cl QHGIKMVOLGCZIP-UHFFFAOYSA-N 0.000 description 1
ZMFWDTJZHRDHNW-UHFFFAOYSA-N indium;trihydrate Chemical compound O.O.O.[In] ZMFWDTJZHRDHNW-UHFFFAOYSA-N 0.000 description 1
238000002386 leaching Methods 0.000 description 1
XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 1
238000011068 loading method Methods 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
229910021645 metal ion Inorganic materials 0.000 description 1
MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
VOVZXURTCKPRDQ-CQSZACIVSA-N n-[4-[chloro(difluoro)methoxy]phenyl]-6-[(3r)-3-hydroxypyrrolidin-1-yl]-5-(1h-pyrazol-5-yl)pyridine-3-carboxamide Chemical compound C1[C@H](O)CCN1C1=NC=C(C(=O)NC=2C=CC(OC(F)(F)Cl)=CC=2)C=C1C1=CC=NN1 VOVZXURTCKPRDQ-CQSZACIVSA-N 0.000 description 1
DNYZBFWKVMKMRM-UHFFFAOYSA-N n-benzhydrylidenehydroxylamine Chemical compound C=1C=CC=CC=1C(=NO)C1=CC=CC=C1 DNYZBFWKVMKMRM-UHFFFAOYSA-N 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
YJBMMHPCGWCCOH-UHFFFAOYSA-N octan-3-yl dihydrogen phosphate Chemical class CCCCCC(CC)OP(O)(O)=O YJBMMHPCGWCCOH-UHFFFAOYSA-N 0.000 description 1
125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
210000000056 organ Anatomy 0.000 description 1
229960003540 oxyquinoline Drugs 0.000 description 1
235000021317 phosphate Nutrition 0.000 description 1
150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
150000003016 phosphoric acids Chemical class 0.000 description 1
230000036316 preload Effects 0.000 description 1
MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical class C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
238000004064 recycling Methods 0.000 description 1
230000001172 regenerating effect Effects 0.000 description 1
150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
230000001629 suppression Effects 0.000 description 1
KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
229910052718 tin Inorganic materials 0.000 description 1
150000005691 triesters Chemical class 0.000 description 1
ZMBHCYHQLYEYDV-UHFFFAOYSA-N trioctylphosphine oxide Chemical compound CCCCCCCCP(=O)(CCCCCCCC)CCCCCCCC ZMBHCYHQLYEYDV-UHFFFAOYSA-N 0.000 description 1
239000002699 waste material Substances 0.000 description 1
229910000368 zinc sulfate Inorganic materials 0.000 description 1
DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1

Landscapes

Manufacture And Refinement Of Metals (AREA)

CA000575886A 1987-09-29 1988-08-26 Recuperation du germanium dans des solutions aqueuses par extraction au solvant Expired - Lifetime CA1317273C (fr)

Priority Applications (4)

Application Number	Priority Date	Filing Date	Title
CA000575886A CA1317273C (fr)	1988-08-26	1988-08-26	Recuperation du germanium dans des solutions aqueuses par extraction au solvant
US07/237,742 US4915919A (en)	1987-09-29	1988-08-29	Recovery of germanium from aqueous solutions by solvent extraction
EP88308263A EP0313201A1 (fr)	1987-09-29	1988-09-07	Procédé de récupération du germanium à partir de solutions aqueuse par extraction liquide-liquide
JP63224866A JPH01122925A (ja)	1987-09-29	1988-09-09	溶媒抽出による水溶液からのゲルマニウムの回収法

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA000575886A CA1317273C (fr)	1988-08-26	1988-08-26	Recuperation du germanium dans des solutions aqueuses par extraction au solvant

Publications (1)

Publication Number	Publication Date
CA1317273C true CA1317273C (fr)	1993-05-04

Family

ID=4138628

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000575886A Expired - Lifetime CA1317273C (fr)	1987-09-29	1988-08-26	Recuperation du germanium dans des solutions aqueuses par extraction au solvant

Country Status (1)

Country	Link
CA (1)	CA1317273C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN118109685A (zh) *	2022-11-29	2024-05-31	衢州华友钴新材料有限公司	锗复合萃取剂的再生方法和锗回收方法
CN119433248A (zh) *	2024-11-07	2025-02-14	深圳市中金岭南有色金属股份有限公司丹霞冶炼厂	一种协同萃取制备金属镓和锗精矿的方法

1988
- 1988-08-26 CA CA000575886A patent/CA1317273C/fr not_active Expired - Lifetime

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN118109685A (zh) *	2022-11-29	2024-05-31	衢州华友钴新材料有限公司	锗复合萃取剂的再生方法和锗回收方法
CN119433248A (zh) *	2024-11-07	2025-02-14	深圳市中金岭南有色金属股份有限公司丹霞冶炼厂	一种协同萃取制备金属镓和锗精矿的方法
CN119433248B (zh) *	2024-11-07	2025-12-16	深圳市中金岭南有色金属股份有限公司丹霞冶炼厂	一种协同萃取制备金属镓和锗精矿的方法

Legal Events

Date	Code	Title	Description
2010-05-04	MKLA	Lapsed
2012-12-05	MKEC	Expiry (correction)	Effective date: 20121205

Publication	Publication Date	Title
US5039496A (en)	1991-08-13	Process for selective extraction of contaminant elements from mixtures of electrolytes in solution
US5135652A (en)	1992-08-04	Method for the solvent extraction of zinc
US5632963A (en)	1997-05-27	Process for the removal of impurity elements from solutions of valuable metals
DE3725611A1 (de)	1989-02-09	Verfahren zur gemeinsamen abtrennung von stoerelementen aus wertmetall-elektrolytloesungen
US5332420A (en)	1994-07-26	Chemical process of separating metals from an organic complex
US4563256A (en)	1986-01-07	Solvent extraction process for recovery of zinc
US3399055A (en)	1968-08-27	Separation of cobalt by liquid extraction from acid solutions
US4102976A (en)	1978-07-25	Treatment of ores or metallurgical by-products containing arsenic and antimony
US4292284A (en)	1981-09-29	Solvent extraction recovery process for indium
US4061564A (en)	1977-12-06	Treatment of solutions containing impure metals
CA1091042A (fr)	1980-12-09	Procede d'extraction au solvant pour la recuperation et la separation des metaux
US4915919A (en)	1990-04-10	Recovery of germanium from aqueous solutions by solvent extraction
US4432951A (en)	1984-02-21	Process for separating germanium from an aqueous solution
US3320032A (en)	1967-05-16	Extracting iron from aluminum salt solutions using bis(2-ethylhexyl) phosphoric acid
US4194905A (en)	1980-03-25	Solvent-extraction process for recovery and separation of metal values
JPH0210765B2 (fr)	1990-03-09
CA1170839A (fr)	1984-07-17	Methode de separation d'un produit de cobalt pratiquement libre de toute trace de nickel a partir de solutions aqueuses a teneur de cobalt et de nickel
CA1061574A (fr)	1979-09-04	Recuperation des metaux au moyen d'un solvant derive de la quinoline
CA1312207C (fr)	1993-01-05	Procede de recuperation du germanium contenu dans une solution aqueuse par extraction au solvant
CA1218237A (fr)	1987-02-24	Separation de l'indium par extraction au solvant
EP0713536B1 (fr)	1998-05-27	Procede de recuperation de metaux
JP2814507B2 (ja)	1998-10-22	塩化インジウム溶液の湿式精錬処理法
JP2636940B2 (ja)	1997-08-06	水溶液からの鉄イオンの抽出方法および抽出溶媒からの鉄イオンの逆抽出方法
EP0113454B1 (fr)	1987-02-04	Extraction des métaux argent et palladium de solutions aqueuses au moyen de sulfures de phosphine tertiaire
WO1997001649A1 (fr)	1997-01-16	Procede pour la separation selective du cadmium contenu dans une solution aqueuse acide