Method for obtaining high-purity cinnamic acid

Details Method for obtaining high-purity cinnamic acid Method for obtaining high-purity cinnamic acid

1991-10-24

1993-04-27

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562495, 560104, C07C 6333

Patent

active

052064301

ABSTRACT:
There is here disclosed a method for obtaining high-purity cinnamic acid containing less metals from crude cinnamic acid containing a metallic catalyst which is a mixture prepared by the synthetic reaction of a cinnamic acid ester. A disclosed purifying means is the combination of alkali hydrolysis, active carbon adsorption, solvent extraction and precipitation with an acid.

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