PROCESS FOR PRODUCING FREE ACIDS FROM AMMONIUM CARBOXYLATES

Title:

PROCESS FOR PRODUCING FREE ACIDS FROM AMMONIUM CARBOXYLATES

Document Type and Number:

WIPO Patent Application WO/1999/000350

Kind Code:

A1

Abstract:

A process for producing carboxylic acids, characterized by heating an ammonium carboxylate of the general formula (1) RCOO?-¿NH4?+¿: (wherein R is hydrogen, alkyl which may be substituted, cycloalkyl which may be substituted, aryl which may be substituted, or saturated or unsaturated heterocyclic group which may be substituted) in an ether solvent having two or more ether bonds such as ethylene glycol dimethyl ether to liberate ammonia and removing ammonia by distillation.

More Like This:

JP6146922	Recovery from those magnesium salt of the carboxylic acid by the precipitation useful for fermentation broth processing using hydrochloric acid
WO/2012/119064	PRODUCTION OF CARBOXYLIC ACID AND SALT CO-PRODUCTS
JP2003508370	INDUSTRIAL APPLICABILITY: A method for increasing the yield of 2,6-NDA.

Inventors:

HAYAKAWA KOUICHI (JP)
HATAYAMA MASATSUGU (JP)

Application Number:

PCT/JP1998/002844

Publication Date:

January 07, 1999

Filing Date:

June 25, 1998

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NIPPON SODA CO (JP)
HAYAKAWA KOUICHI (JP)
HATAYAMA MASATSUGU (JP)

International Classes:

C07C51/02; (IPC1-7): C07C51/02; C07B41/08; C07C53/08; C07C63/06; C07C323/52; C07D213/08

Foreign References:

JPS612055B2	1986-01-22
JPS6150937A	1986-03-13

Attorney, Agent or Firm:

Tokai, Yusaku (2-1, Ohtemachi 2-chom, Chiyoda-ku Tokyo, JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: CYCLOPENTENONE DERIVATIVES

Next Patent: PROCESS FOR THE RECOVERY OF NAPHTHALENEDICARBOXYLIC ACID FROM POLY(ALKYLENE NAPHTHALENEDICARBOXYLATE...