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US Patent 7686976 Composition for removing arsenic from aqueous streams

Patent 7686976 was granted and assigned to Molycorp on March, 2010 by the United States Patent and Trademark Office.

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Patent abstract

Arsenic is removed from water and other aqueous feeds by (1) treating the feed with a compound containing cerium in the +4 oxidation state, preferably cerium dioxide, to oxidize arsenic in the +3 oxidation state to arsenic in the +5 oxidation state and (2) removing the arsenic in the +5 oxidation state from the aqueous phase, normally by contacting the treated feed with alumina or other precipitating agent containing cations in the +3 oxidation state.

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Patent Inventor Names
Edward Bayer McNew0
John Leslie Burba, III0
Richard Donald Witham0
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US Patent 07686976 Composition for removing arsenic from aqueous streams US Patent 7686976 Composition for removing arsenic from aqueous streams

Infobox
Patent Number
076869760
Patent Number
76869760
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=076869760
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Infobox
Is a
Patent
Patent
0
Current Assignee
Molycorp
Molycorp
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
076869760
Date of Patent
March 30, 2010
0
Patent Application Number
119252470
Date Filed
October 26, 2007
0
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=076869760
Patent Primary Examiner
‌
Peter A. Hruskoci
0
Edits on 18 Jun, 2022
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Website URL
https://pdfpiw.uspto.gov/.piw?Docid=07686976
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 US Patent 07686976 Composition for removing arsenic from aqueous streams

Infobox
Is a
Patent
Patent
Current assignee
Molycorp
Molycorp
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07686976
Date of patent
March 30, 2010
Patent application number
11925247
Date Filed
October 26, 2007
Patent primary examiner
‌
Peter A. Hruskoci

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