US Patent 7648032 Effective reductive bleaching of mineral slurries
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Patent 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.
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Patent Inventor Names
Jun Yuan0
Larry C. Powell0
Robert J. Pruett0
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US Patent 07648032 Effective reductive bleaching of mineral slurries US Patent 7648032 Effective reductive bleaching of mineral slurries
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Patent Number
076480320
Patent Number
76480320
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Patent Jurisdiction
Patent Number
076480320
Date of Patent
January 19, 2010
0Patent Application Number
105921420
Date Filed
March 22, 2005
0Official Website
Patent Primary Examiner
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US Patent 07648032 Effective reductive bleaching of mineral slurries
Infobox
Is a
Patent jurisdiction
Patent number
07648032
Date of patent
January 19, 2010
Patent application number
10592142
Date Filed
March 22, 2005
Patent primary examiner
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