BR8800437A - GOLD RECOVERY PROCESS - Google Patents

GOLD RECOVERY PROCESS

Info

Publication number: BR8800437A
Authority: BR; Brazil
Prior art keywords: recovery process; gold recovery; gold; recovery
Prior art date: 1987-02-05

Application number

BR8800437A

Other languages

Portuguese (pt)

Inventor

Rodney H Doft

R J Shields Iii

Original Assignee

Nalco Chemical Co

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.)

1987-02-05

Filing date

1988-02-04

Publication date

1988-09-20

1988-02-04 Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co

1988-09-20 Publication of BR8800437A publication Critical patent/BR8800437A/en

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US1165987A	1987-02-05	1987-02-05

Publications (1)

Publication Number	Publication Date
BR8800437A true BR8800437A (en)	1988-09-20

Family

ID=21751420

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR8800437A BR8800437A (en)	1987-02-05	1988-02-04	GOLD RECOVERY PROCESS

Country Status (5)

Country	Link
JP (1)	JPS63195232A (en)
AU (1)	AU1096888A (en)
BR (1)	BR8800437A (en)
ES (1)	ES2008416A6 (en)
ZA (1)	ZA88823B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1999063123A1 (en) *	1998-06-04	1999-12-09	Betzdearborn Inc.	Heap leach agglomeration/percolation extraction aids for enhanced gold and silver recovery

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA2592095C (en) *	2004-12-24	2013-07-30	Basf Aktiengesellschaft	Use of nonionic surfactants in metal extraction
RU2468103C1 (en) *	2011-06-10	2012-11-27	Денис Игоревич Целюк	Method to extract gold from stale tailings of upstream impoundments
RU2493277C1 (en) *	2012-02-01	2013-09-20	Открытое акционерное общество "Иркутский научно-исследовательский институт благородных и редких металлов и алмазов" (ОАО "Иргиредмет")	Extraction method of gold from tails of cyanidation of carbonic sorption-active ores and washed products
RU2666656C1 (en) *	2017-11-22	2018-09-11	Акционерное общество "Полюс Красноярск"	Method of gold recovery from sulfide concentrates of flotation containing sorption-active organic carbon

1988
- 1988-01-21 ES ES8800136A patent/ES2008416A6/en not_active Expired
- 1988-01-29 AU AU10968/88A patent/AU1096888A/en not_active Abandoned
- 1988-02-04 BR BR8800437A patent/BR8800437A/en not_active IP Right Cessation
- 1988-02-04 JP JP2294088A patent/JPS63195232A/en active Pending
- 1988-02-05 ZA ZA880823A patent/ZA88823B/en unknown

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1999063123A1 (en) *	1998-06-04	1999-12-09	Betzdearborn Inc.	Heap leach agglomeration/percolation extraction aids for enhanced gold and silver recovery
US6428597B1 (en)	1998-06-04	2002-08-06	Betzdearborn Inc.	Heap leach agglomeration/percolation extraction aids for enhanced gold and silver recovery

Also Published As

Publication number	Publication date
ES2008416A6 (en)	1989-07-16
ZA88823B (en)	1988-08-05
JPS63195232A (en)	1988-08-12
AU1096888A (en)	1988-08-11

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Legal Events

Date	Code	Title	Description
1995-01-03	FF	Decision: intention to grant
1995-06-27	FG	Letter patent granted
2008-09-02	B21A	Expiry acc. art. 78, item i of ipl- expiry of the term of protection	Free format text: PATENTE EXTINTA EM 04/02/2003
2018-03-20	B15K	Others concerning applications: alteration of classification	Free format text: PROCEDIMENTO AUTOMATICO DE RECLASSIFICACAO. A CLASSIFICACAO IPC ANTERIOR ERA C22B 11/04. Ipc: C22B 11/00 (2006.01) Ipc: C22B 11/00 (2006.01)