slide 1

Back to the List of the Granted Patents                                                Click here to download AP2771 PDF

(11)    Patent No :    AP 2771   
(21)    Application No :    AP/P/2010/005200   
(22)    Filing Date :    29.08.2008   
(24)    Date of Grant &    26.09.2013   
           
(45)    Publication :

(30)  Priority Data       
(33) Country    (31) Number    (32) Date
US    60/969,222    31.08.2007

(84)    Designated State
ZM
(73) Applicant(s)
LIGNOTECH USA, INC, 100 Grand Avenue, Rothschild, WI 54474- 1198,
United States of America
(72) Inventors

BUSHAR Lori L, United States of America

GARGULAK Jerry D, United States of America

(74) Representative

GALLOWAY & COMPANY

ZIMBABWE
(51)    International  Classification   C22B 1/00 (2006.01)    C22B 15/00 (2006.01)
    B03D 1/00 (2006.01)    B03D 1/016 (2006.01)
    B03D 1/06 (2006.01)    C08L 97/00 (2006.01)
    C08H 5/04 (2006.01)   
(54)    Title   

Hardwood lignosulfonates for seperating gangue materials from metallic sulphide ores

(57)    Abstract

Disclosed are compositions and methods for separating gangue material from metallic sulfide ores. The compositions typically include a lignosulfonate and do not include a cyanide salt. Suitable lignosulfonates may include lignosulfonates for example hardwood lignosulfonate having a weight average molecular weight of about 3 kDa to about 12 kDa and having a relatively low sulfur content and a relatively low sulfonate content.

(56)    Documents Cited :    WO 89/10792 A   US 5 575 334 A   US 4 293 459 A

Newsletter

Join our newsletter for CIPIT news through subscriptions!

SEND

Social Media

    

Contact Us

TEL : (254) 703 034 612