Invention Grant
US08221709B2 Hardwood lignosulfonates for separating gangue materials from metallic sulfide ores
有权
用于从金属硫化物矿石中分离ang石材料的硬木木素磺酸盐
- Patent Title: Hardwood lignosulfonates for separating gangue materials from metallic sulfide ores
- Patent Title (中): 用于从金属硫化物矿石中分离ang石材料的硬木木素磺酸盐
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Application No.: US12675702Application Date: 2008-08-29
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Publication No.: US08221709B2Publication Date: 2012-07-17
- Inventor: Jerry D. Gargulak , Lori L. Bushar
- Applicant: Jerry D. Gargulak , Lori L. Bushar
- Applicant Address: US WI Rothschild
- Assignee: LignoTech USA, Inc.
- Current Assignee: LignoTech USA, Inc.
- Current Assignee Address: US WI Rothschild
- Agency: Andrus, Sceales, Starke & Sawall, LLP
- International Application: PCT/US2008/074732 WO 20080829
- International Announcement: WO2009/029753 WO 20090305
- Main IPC: B03D1/00
- IPC: B03D1/00
Abstract:
Disclosed are compositions and methods for separating gangue material from metallic sulfide ores. The compositions typically include a lignosolfonate 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.
Public/Granted literature
- US20100233050A1 Hardwood Lignosulfonates for Separating Gangue Materials From Metallic Sulfide Ores Public/Granted day:2010-09-16
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