Method for producing tetrahydrofuran

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United States of America Patent

PATENT NO 9598388
SERIAL NO

14147932

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Abstract

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The present invention is concerned with a method for producing tetrahydrofuran including carrying out a dehydration cyclization reaction of 1,4-butanediol in the presence of an acid catalyst having a pKa value of not more than 4 within a reactor, wherein a raw material liquid containing 1,4-butanediol to be provided for the reaction contains from 0.01 to 0.35% by weight of 2-(4-hydroxybutoxy)-tetrahydrofuran and 1 ppm by weight or more and not more than 1,000 ppm by weight of at least one of an amine and an amide in terms of a concentration as converted into a nitrogen atom.

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Patent Owner(s)

  • MITSUBISHI CHEMICAL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Izawa, Yusuke Mie, JP 19 46
Konishi, Norikazu Mie, JP 12 42
Tanaka, Kouta Mie, JP 16 140
Utsunomiya, Masaru Tokyo, JP 19 91

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