US Patent 7988867 Method of treating silicon powder-containing drainage water
Patent 7988867 was granted and assigned to Tokuyama Corporation on August, 2011 by the United States Patent and Trademark Office.
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Patent abstract
A method of treating silicon powder-containing drainage water, comprising the steps of:including an inorganic flocculant composed of a silica sol-water-soluble metal salt having a molar ratio of silicon to metal of 0.05 to 3.0 into drainage water containing silicon powders to ensure that the metal concentration becomes 15 to 300 mg/L; andadding an organic polymer flocculant.
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Patent Inventor Names
Shinji Tokunaga0
Toshihiko Inoue0
Yoshiaki Koga0
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US Patent 07988867 Method of treating silicon powder-containing drainage water US Patent 7988867 Method of treating silicon powder-containing drainage water
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Patent Number
079888670
Patent Number
79888670
Edits on 27 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079888670
Date of Patent
August 2, 2011
0Patent Application Number
119907580
Date Filed
August 17, 2006
0Patent Primary Examiner
Edits on 8 Dec, 2021
Golden AI
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Infobox (+8 properties)
US Patent 07988867 Method of treating silicon powder-containing drainage water
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07988867
Date of patent
August 2, 2011
Patent application number
11990758
Date Filed
August 17, 2006
Patent primary examiner
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