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(11)    Patent No :    AP 2623    (73) Applicant(s)       
(21)    Application No :    AP/P/2010/005310    CYTEC TECHNOLOGY CORP., 300 Delaware Avenue,       
            Wilmington, DE 19801,       
                   
(22)    Filing Date :    22.12.2008    United States of America       
(24)    Date of Grant &    19.03.2013           
                   
(45)    Publication :

(30)  Priority Data    (72) Inventors

    (33) Country    (31) Number    (32) Date    TAYLOR Matthew, United States of America   
    US    61/017,185    28.12.2007    HARRIS Douglas J, United States of America   
                   
                CHEN Haunn-Lin Tony, United States of America   
                et al   
                (74) Representative   
(84)    Designated State           
               
    ZM   ZW            HONEY & BLANCKENBERG   
               
(51)    International    Classification    C01F 7/47 (2006.01)   

(54)    Title

Methods and compositions for the removal of impurities and water from the Bayer process

(57)    Abstract

A liquid phase that comprises an oxalate-extracting amount of an organic salt is useful as an extractant in a liquid/liquid extraction process for purifying Bayer process streams.

(56)    Documents Cited :    US 4 902 425 A    US 44275 042 A    US 4496 524 A

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