Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2006-08-01
2006-08-01
Oh, Taylor Victor (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C562S530000, C562S528000, C562S540000, C562S593000
Reexamination Certificate
active
07084300
ABSTRACT:
Degradation acids obtained in the synthesis of carboxylic acids, in particular dicarboxylic acids, having from 8 to 16 carbon atoms may be isolated by separating the degradation acids in the form of a solid from the crude reaction mixture, then washing the degradation acids in the form of an oil with water at an elevated temperature. The resulting degradation acids having low oxidant and metal contents, and the metal catalyst may be recirculated back to the process.
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T. P. Hilditch, Catalytic Processes in Applied Chemistry, 1929, D. Van Nostrand Co., xiii-xx.
Herwig Juergen
Oenbrink Georg
Richter Ralf
Roos Martin
Degussa - AG
Oh Taylor Victor
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