ZA200007369B - Treatment of roasted metal sulphide ores and ferrites by leaching with peroxysulphuric acid. - Google Patents

Treatment of roasted metal sulphide ores and ferrites by leaching with peroxysulphuric acid. Download PDF

Info

Publication number: ZA200007369B
Authority: ZA; South Africa
Prior art keywords: ferrite; ore; metal; acid; leaching
Prior art date: 1998-06-12

Application number

ZA200007369A

Other languages

English (en)

Inventor

Michael Mourad Hanna

Marc Murray Rishea

Vaikuntam Iyer Lakshmanan

Original Assignee

Protium Metals Inc

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.)

1998-06-12

Filing date

2000-12-11

Publication date

2002-03-11

2000-12-11 Application filed by Protium Metals Inc filed Critical Protium Metals Inc

2002-03-11 Publication of ZA200007369B publication Critical patent/ZA200007369B/en

Links

229910000859 α-Fe Inorganic materials 0.000 title claims description 58
238000002386 leaching Methods 0.000 title claims description 35
239000002253 acid Substances 0.000 title claims description 33
229910052976 metal sulfide Inorganic materials 0.000 title claims description 23
238000000034 method Methods 0.000 claims description 78
229910052751 metal Inorganic materials 0.000 claims description 58
239000002184 metal Substances 0.000 claims description 58
150000002739 metals Chemical class 0.000 claims description 28
239000011701 zinc Substances 0.000 claims description 24
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 23
239000010949 copper Substances 0.000 claims description 23
229910052725 zinc Inorganic materials 0.000 claims description 23
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 22
229910052802 copper Inorganic materials 0.000 claims description 22
238000011084 recovery Methods 0.000 claims description 17
238000000926 separation method Methods 0.000 claims description 13
UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 9
229910052737 gold Inorganic materials 0.000 claims description 9
239000010931 gold Substances 0.000 claims description 9
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 8
UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 8
239000000460 chlorine Substances 0.000 claims description 8
229910052801 chlorine Inorganic materials 0.000 claims description 8
NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 8
239000007800 oxidant agent Substances 0.000 claims description 4
229910052709 silver Inorganic materials 0.000 claims description 3
239000004332 silver Substances 0.000 claims description 3
230000001590 oxidative effect Effects 0.000 claims description 2
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 28
239000000243 solution Substances 0.000 description 16
229910052742 iron Inorganic materials 0.000 description 12
230000015572 biosynthetic process Effects 0.000 description 10
FHHJDRFHHWUPDG-UHFFFAOYSA-N peroxysulfuric acid Chemical compound OOS(O)(=O)=O FHHJDRFHHWUPDG-UHFFFAOYSA-N 0.000 description 9
238000000605 extraction Methods 0.000 description 8
238000003723 Smelting Methods 0.000 description 7
239000010953 base metal Substances 0.000 description 7
239000012141 concentrate Substances 0.000 description 7
239000000463 material Substances 0.000 description 7
RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
229910052785 arsenic Inorganic materials 0.000 description 6
RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 6
238000006243 chemical reaction Methods 0.000 description 6
229910044991 metal oxide Inorganic materials 0.000 description 6
150000004706 metal oxides Chemical class 0.000 description 6
230000003647 oxidation Effects 0.000 description 6
238000007254 oxidation reaction Methods 0.000 description 6
239000010970 precious metal Substances 0.000 description 6
150000003467 sulfuric acid derivatives Chemical class 0.000 description 6
235000011149 sulphuric acid Nutrition 0.000 description 6
239000001117 sulphuric acid Substances 0.000 description 6
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
238000007670 refining Methods 0.000 description 5
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
239000011575 calcium Substances 0.000 description 4
239000000919 ceramic Substances 0.000 description 4
230000007613 environmental effect Effects 0.000 description 4
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
229910052797 bismuth Inorganic materials 0.000 description 3
JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 3
150000001875 compounds Chemical class 0.000 description 3
239000003792 electrolyte Substances 0.000 description 3
238000005363 electrowinning Methods 0.000 description 3
235000013980 iron oxide Nutrition 0.000 description 3
229910052760 oxygen Inorganic materials 0.000 description 3
239000001301 oxygen Substances 0.000 description 3
235000010269 sulphur dioxide Nutrition 0.000 description 3
239000004291 sulphur dioxide Substances 0.000 description 3
229910052714 tellurium Inorganic materials 0.000 description 3
PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 3
DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical class [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 3
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
229910052787 antimony Inorganic materials 0.000 description 2
WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
239000007864 aqueous solution Substances 0.000 description 2
229910052791 calcium Inorganic materials 0.000 description 2
230000003247 decreasing effect Effects 0.000 description 2
230000000694 effects Effects 0.000 description 2
239000000383 hazardous chemical Substances 0.000 description 2
VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
229910052749 magnesium Inorganic materials 0.000 description 2
239000011777 magnesium Substances 0.000 description 2
239000000203 mixture Substances 0.000 description 2
229910052759 nickel Inorganic materials 0.000 description 2
AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
229910021653 sulphate ion Inorganic materials 0.000 description 2
235000008733 Citrus aurantifolia Nutrition 0.000 description 1
MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical class [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
235000006679 Mentha X verticillata Nutrition 0.000 description 1
235000002899 Mentha suaveolens Nutrition 0.000 description 1
235000001636 Mentha x rotundifolia Nutrition 0.000 description 1
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
241000720974 Protium Species 0.000 description 1
BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
235000011941 Tilia x europaea Nutrition 0.000 description 1
229910001308 Zinc ferrite Inorganic materials 0.000 description 1
239000005083 Zinc sulfide Substances 0.000 description 1
230000002378 acidificating effect Effects 0.000 description 1
238000005054 agglomeration Methods 0.000 description 1
230000002776 aggregation Effects 0.000 description 1
229910052784 alkaline earth metal Inorganic materials 0.000 description 1
150000001342 alkaline earth metals Chemical class 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
230000003466 anti-cipated effect Effects 0.000 description 1
229910000413 arsenic oxide Inorganic materials 0.000 description 1
229910052788 barium Inorganic materials 0.000 description 1
DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
229910021538 borax Inorganic materials 0.000 description 1
229910052793 cadmium Inorganic materials 0.000 description 1
BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
239000003989 dielectric material Substances 0.000 description 1
238000011143 downstream manufacturing Methods 0.000 description 1
238000010304 firing Methods 0.000 description 1
239000007789 gas Substances 0.000 description 1
238000000227 grinding Methods 0.000 description 1
231100001261 hazardous Toxicity 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
239000011810 insulating material Substances 0.000 description 1
229910000765 intermetallic Inorganic materials 0.000 description 1
KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
239000012633 leachable Substances 0.000 description 1
WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 1
239000004571 lime Substances 0.000 description 1
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000002245 particle Substances 0.000 description 1
229910052700 potassium Inorganic materials 0.000 description 1
239000011591 potassium Substances 0.000 description 1
-1 precious metals Chemical class 0.000 description 1
238000009853 pyrometallurgy Methods 0.000 description 1
229910052761 rare earth metal Inorganic materials 0.000 description 1
150000002910 rare earth metals Chemical class 0.000 description 1
238000004064 recycling Methods 0.000 description 1
229910052711 selenium Inorganic materials 0.000 description 1
239000011669 selenium Substances 0.000 description 1
239000004065 semiconductor Substances 0.000 description 1
238000005245 sintering Methods 0.000 description 1
239000002893 slag Substances 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
239000011734 sodium Substances 0.000 description 1
239000004328 sodium tetraborate Substances 0.000 description 1
235000010339 sodium tetraborate Nutrition 0.000 description 1
150000004763 sulfides Chemical class 0.000 description 1
239000010936 titanium Substances 0.000 description 1
229910052719 titanium Inorganic materials 0.000 description 1
238000005292 vacuum distillation Methods 0.000 description 1
229910052720 vanadium Inorganic materials 0.000 description 1
GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
239000002699 waste material Substances 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 description 1
239000011787 zinc oxide Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
- C22B11/042—Recovery of noble metals from waste materials
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
- 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

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Organic Chemistry (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Manufacturing & Machinery (AREA)
Life Sciences & Earth Sciences (AREA)
Environmental & Geological Engineering (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Geology (AREA)
Inorganic Chemistry (AREA)
Manufacture And Refinement Of Metals (AREA)

ZA200007369A 1998-06-12 2000-12-11 Treatment of roasted metal sulphide ores and ferrites by leaching with peroxysulphuric acid. ZA200007369B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA 2240450 CA2240450A1 (fr)	1998-06-12	1998-06-12	Procede pour le traitement de ferrites et de minerais sulfures metalliques grilles

Publications (1)

Publication Number	Publication Date
ZA200007369B true ZA200007369B (en)	2002-03-11

Family

ID=4162549

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA200007369A ZA200007369B (en)	1998-06-12	2000-12-11	Treatment of roasted metal sulphide ores and ferrites by leaching with peroxysulphuric acid.

Country Status (8)

Country	Link
US (1)	US20020001552A1 (fr)
EP (1)	EP1086256A1 (fr)
AU (1)	AU4127399A (fr)
BR (1)	BR9911113A (fr)
CA (1)	CA2240450A1 (fr)
MX (1)	MXPA00012343A (fr)
WO (1)	WO1999066085A1 (fr)
ZA (1)	ZA200007369B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2245380C1 (ru) *	2003-10-21	2005-01-27	Государственное образовательное учреждение высшего профессионального образования "Московский государственный институт стали и сплавов" (технологический университет)	Способ переработки продуктов, содержащих сульфиды металлов
RU2265068C1 (ru) *	2004-10-07	2005-11-27	Государственное образовательное учреждение высшего профессионального образования "Московский государственный институт стали и сплавов" (технологический университет) (МИСиС)	Способ переработки упорного минерального сырья, содержащего металлы
CN101535186A (zh) *	2006-11-16	2009-09-16	雅宝荷兰有限责任公司	钼工业氧化物的精制
US7824633B2 (en)	2006-11-21	2010-11-02	Freeport-Mcmoran Corporation	System and method for conversion of molybdenite to one or more molybdenum oxides
RU2337154C1 (ru) *	2007-04-16	2008-10-27	Государственное образовательное учреждение высшего профессионального образования "Московский государственный институт стали и сплавов" (технологический университет)	Способ извлечения металлов из сульфидсодержащих руд
RU2336340C1 (ru) *	2007-04-16	2008-10-20	Государственное образовательное учреждение высшего профессионального образования "Московский государственный институт стали и сплавов" (технологический университет)	Способ выщелачивания сульфидсодержащих продуктов
RU2336341C1 (ru) *	2007-04-16	2008-10-20	Государственное образовательное учреждение высшего профессионального образования "Московский государственный институт стали и сплавов" (технологический университет)	Способ кучного бактериального выщелачивания сульфидсодержащих продуктов
RU2384633C1 (ru) *	2008-08-19	2010-03-20	Федеральное государственное унитарное предприятие "Государственный научно-исследовательский, проектный и конструкторский институт горного дела и металлургии цветных металлов" (ФГУП "Гипроцветмет")	Способ переработки упорного медного сырья, содержащего благородные металлы
US20130036869A1 (en) *	2010-11-08	2013-02-14	Albert Ivanovich Begunov	Method for producing aluminum by means of metallothermic recovery of aluminum trichloride with magnesium and a device for its realization
CN112143896A (zh) *	2020-08-26	2020-12-29	昆明理工大学	一种碲化铋废料回收碲、铋的方法
CN119506584B (zh) *	2024-11-26	2025-08-12	山东国大黄金股份有限公司	一种利用湿法浸锑高盐废液提高银铜回收率的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE396968B (sv) *	1975-07-01	1977-10-10	Boliden Ab	Forfarande for utvinning av icke-jernmetaller ur sulfidiska material genom rostning och lakning
GR68944B (fr) *	1977-03-31	1982-03-29	Interox Chemicals Ltd
CA1086505A (fr) *	1977-05-13	1980-09-30	Ashok D. Dalvi	Recuperation de cuivre par grillage et lessivage
GB1594851A (en) *	1977-05-16	1981-08-05	Interox Chemicals Ltd	Extraction of zinc
US4415540A (en) *	1978-05-05	1983-11-15	Provincial Holdings Ltd.	Recovery of non-ferrous metals by thermal treatment of solutions containing non-ferrous and iron sulphates
CA1213150A (fr) *	1982-12-07	1986-10-28	Vaikuntam I. Lakshmanan	Separation des metaux precieux
ZA92939B (en) *	1990-11-13	1993-08-10	Franciszek Kazimierz Letowski	A process for extracting precious metals from an ore or concentrate
CA2154608A1 (fr) *	1995-07-25	1997-01-26	Mourad Michael Hanna	Procede de purification de l'or
JPH10140257A (ja) *	1996-11-07	1998-05-26	Sumitomo Metal Mining Co Ltd	塩素浸出電解採取法によるニッケルの湿式精錬方法

1998
- 1998-06-12 CA CA 2240450 patent/CA2240450A1/fr not_active Abandoned
1999
- 1999-06-09 MX MXPA00012343A patent/MXPA00012343A/es unknown
- 1999-06-09 WO PCT/CA1999/000536 patent/WO1999066085A1/fr not_active Ceased
- 1999-06-09 BR BR9911113A patent/BR9911113A/pt not_active Application Discontinuation
- 1999-06-09 AU AU41273/99A patent/AU4127399A/en not_active Abandoned
- 1999-06-09 EP EP19990924624 patent/EP1086256A1/fr not_active Withdrawn
2000
- 2000-12-11 ZA ZA200007369A patent/ZA200007369B/en unknown
- 2000-12-11 US US09/734,478 patent/US20020001552A1/en not_active Abandoned

Also Published As

Publication number	Publication date
US20020001552A1 (en)	2002-01-03
CA2240450A1 (fr)	1999-12-12
MXPA00012343A (es)	2002-10-17
AU4127399A (en)	2000-01-05
EP1086256A1 (fr)	2001-03-28
WO1999066085A1 (fr)	1999-12-23
BR9911113A (pt)	2002-01-29

Publication	Publication Date	Title
US8834818B2 (en)	2014-09-16	Treatment of indium gallium alloys and recovery of indium and gallium
Jha et al.	2001	Review of hydrometallurgical recovery of zinc from industrial wastes
US4610722A (en)	1986-09-09	Process for metal recovery from steel plant dust
US3958985A (en)	1976-05-25	Extraction method for non-ferrous metals
CA1224926A (fr)	1987-08-04	Methode pour le traitement de concentres complexes de minerai sulfure
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