Process for preparing 2,5-dihydroxyterephthalic acid

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United States of America Patent

PATENT NO 8680325
APP PUB NO 20120310008A1
SERIAL NO

13482241

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Abstract

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The present invention provides a process for preparing 2,5-dihydroxyterephthalic acid which comprises reacting a dialkali metal salt of hydroquinone with carbon dioxide in a reaction medium in the presence of a potassium salt represented by formula (I):

description='In-line Formulae' end='lead'CnH2n+1COOK  (I)description='In-line Formulae' end='tail'

wherein n is an integer of 1-17.

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Patent Owner(s)

Patent OwnerAddress
UENO FINE CHEMICALS INDUSTRY LTD4-8 KORAIBASHI 2-CHOME CHUO-KU OSAKA-SHI OSAKA-FU

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kita, Yusuke Osaka, JP 10 12
Otsuka, Ryoichi Osaka, JP 4 2

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