Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1994-05-31
1995-08-15
Schofer, Joseph L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C07C 6963
Patent
active
054420970
ABSTRACT:
Fluorinated carboxylic acids can be recovered from materials which contain them by releasing, if necessary, the carboxylic acids with sufficiently strong acids, esterifying the released acids and distilling off the esters. The esters can be advantageously directly hydrolyzed with aqueous ammonia solution to give the corresponding ammonium salts.
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patent: 4730082 (1988-03-01), Amiet
"Some physical properties of n-alkyl trifluoroacetates" Jeffery et al; J. Appl. Chem., 10, Jan., 1960.
Patent Abstracts of Japan, vol. 14, No. 137, p. 702 (Mar. 15, 1990).
Obermeier Reinhold
Stefaniak Gunter
Hoechst Aktiengesellschaft
Sarofim N.
Schofer Joseph L.
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