WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1996009417) LEACHING OF PRECIOUS METAL ORE WITH FLUOROALIPHATIC SURFACTANT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1996/009417    International Application No.:    PCT/US1995/010012
Publication Date: 28.03.1996 International Filing Date: 07.08.1995
Chapter 2 Demand Filed:    27.03.1996    
IPC:
C08F 220/38 (2006.01), C22B 11/08 (2006.01)
Applicants: MINNESOTA MINING AND MANUFACTURING COMPANY [US/US]; 3M Center, P.O. Box 33427, Saint Paul, MN 55133-3427 (US)
Inventors: WADDELL, Jennifer, E.; (US).
SIERAKOWSKI, Michael, J.; (US).
SAVU, Patricia, M.; (US).
MOORE, George, G., I.; (US).
JARIWALA, Chetan, P.; (US).
GUERRA, Miguel, A.; (US)
Agent: BRINK, Robert, H.; Minnesota Mining and Manufacturing Company, Office of Intellectual Property Counsel, P.O. Box 33427, Saint Paul, MN 55133-3427 (US).
VOSSIUS & PARTNER; P.O. Box 86 07 67, D-81634 Munchen (DE)
Priority Data:
08/309,924 21.09.1994 US
Title (EN) LEACHING OF PRECIOUS METAL ORE WITH FLUOROALIPHATIC SURFACTANT
(FR) LIXIVATION DE MINERAIS METALLIQUES PRECIEUX A L'AIDE D'UN TENSIOACTIF FLUOROALIPHATIQUE
Abstract: front page image
(EN)A method for improving the recovery of gold and silver from precious metal ore is disclosed. The method comprises contacting precious metal ore with an aqueous solution containing certain fluoroaliphatic surfactants.
(FR)Procédé améliorant la récupération de l'or et de l'argent à partir de minerais métalliques précieux et consistant à mettre en contact le minerai métallique précieux avec une solution aqueuse contenant certains tensioactifs fluoroaliphatiques.
Designated States: AU, BR, CA, JP, MX, RU.
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: English (EN)
Filing Language: English (EN)