Invention Grant
- Patent Title: Effective reductive bleaching of mineral slurries
- Patent Title (中): 有效还原漂白矿浆
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Application No.: US10592142Application Date: 2005-03-22
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Publication No.: US07648032B2Publication Date: 2010-01-19
- Inventor: Jun Yuan , Robert J. Pruett , Larry C. Powell
- Applicant: Jun Yuan , Robert J. Pruett , Larry C. Powell
- Applicant Address: US GA Roswell
- Assignee: Imerys Pigments, Inc.
- Current Assignee: Imerys Pigments, Inc.
- Current Assignee Address: US GA Roswell
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner L.L.P.
- International Application: PCT/US2005/009355 WO 20050322
- International Announcement: WO2005/095709 WO 20051013
- Main IPC: B01B1/04
- IPC: B01B1/04 ; C04B33/04 ; C09C1/02 ; C09C1/42 ; C02F1/70 ; C01B17/64 ; C01B33/26 ; C01B31/24
Abstract:
Disclosed herein are a method of reductively bleaching a mineral slurry comprising adding in the mineral slurry an effective amount of a formamidine sulfinic acid (FAS) and an effective amount of a borohydride to reductively bleach the mineral slurry, compositions comprising a mineral slurry, a FAS, and a borohydride, and final products comprising a mineral obtained by the method disclosed herein.
Public/Granted literature
- US20070194276A1 Effective reductive bleaching of mineral slurries Public/Granted day:2007-08-23
Information query
