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Title:
PROCESS FOR PREPARING BISPHENOL
Document Type and Number:
WIPO Patent Application WO/2010/084929
Kind Code:
A1
Abstract:
Provided is a process for preparing a bisphenol stably at a high conversion and with high selectivity over a long period. A process for preparing a bisphenol by feeding both a phenol compound and a carbonyl compound continuously to a reactor filled with an acid catalyst, characterized in that the acid catalyst is a sulfonic acid-type cation-exchange resin wherein some of the sulfonic acid groups are modified with at least one compound selected from among 2-pyridylalkanethiols and 3-pyridyl- alkanethiols.

Inventors:
TSUTSUMINAI SUSUMU (JP)
KANNO KAZUAKI (JP)
TACHIKURA MAKIKO (JP)
Application Number:
PCT/JP2010/050736
Publication Date:
July 29, 2010
Filing Date:
January 21, 2010
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
TSUTSUMINAI SUSUMU (JP)
KANNO KAZUAKI (JP)
TACHIKURA MAKIKO (JP)
International Classes:
C07C37/20; B01J31/10; C07C39/16; C07B61/00; C07D213/32
Foreign References:
JPS5735533A1982-02-26
JPS5732240A1982-02-20
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JPS5735533A1982-02-26
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JP2002069023A2002-03-08
US6534686B12003-03-18
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JPH11228540A1999-08-24
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Other References:
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"Daiya Ion Manuaru", 2007, MITSUBISHI. CHEMICAL CORP., pages: 140 - 142
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Attorney, Agent or Firm:
OGURI Shohei et al. (JP)
Shohei Oguri (JP)
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