| Title of Invention | COMPOSITION AND METHOD FOR IMPROVED ALUMINUM HYDROXIDE PRODUCTION |
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| Abstract | An improved method and composition for producing aluminum hydroxide crystals in a Bayer process pregnant liquor, involve the addition of an emulsified crystallization modifier comprising a C8-C10 fatty acid, precursors, salts or blends thereof. The alkyl chain of the fatty acid crystallization modifier is free of functional groups. The modifier yields a commercially viable product in the presence and absence of a hydrocarbon oil which dissolves the fatty acid. Further, the modifier, prepared in either an emulsified form or as a fatty acid neat, facilitates formation of oxalate aggregates greater than 200 µm which may be readily screened out with minimum trihydrate loss. |
| Full Text | COMPOSITION AND METHOD FOR IMPROVED ALUMINUM HYDROXIDE PRODUCTION |
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9845-delnp-2008-Abstract-(12-12-2008).pdf
9845-delnp-2008-Assignment-(19-12-2013).pdf
9845-delnp-2008-Claims-(12-12-2008).pdf
9845-delnp-2008-Correspondence Others-(12-11-2013).pdf
9845-delnp-2008-Correspondence Others-(12-12-2008).pdf
9845-delnp-2008-Correspondence Others-(19-12-2013).pdf
9845-delnp-2008-Correspondence Others-(30-12-2014).pdf
9845-DELNP-2008-Correspondence-Others-(21-04-2009).pdf
9845-delnp-2008-Form-2-(12-12-2008).pdf
9845-delnp-2008-Form-3-(12-11-2013).pdf
9845-delnp-2008-GPA-(12-12-2008).pdf
9845-DELNP-2008-OTHERS-021214.pdf
FORM 13_Address for Service.pdf
| Patent Number | 265993 | |||||||||||||||
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| Indian Patent Application Number | 9845/DELNP/2008 | |||||||||||||||
| PG Journal Number | 13/2015 | |||||||||||||||
| Publication Date | 27-Mar-2015 | |||||||||||||||
| Grant Date | 26-Mar-2015 | |||||||||||||||
| Date of Filing | 25-Nov-2008 | |||||||||||||||
| Name of Patentee | NALCO COMPANY | |||||||||||||||
| Applicant Address | Patent & Licensing Dept. 1601 W. Diehl Road Naperville Illinois 60563-1198 United States of America | |||||||||||||||
Inventors:
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| PCT International Classification Number | C01F 7/02 | |||||||||||||||
| PCT International Application Number | PCT/US2007/068848 | |||||||||||||||
| PCT International Filing date | 2007-05-14 | |||||||||||||||
PCT Conventions:
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