JPH03284641A - Production of bisphenol a - Google Patents

Production of bisphenol a

Info

Publication number
JPH03284641A
JPH03284641A JP2083383A JP8338390A JPH03284641A JP H03284641 A JPH03284641 A JP H03284641A JP 2083383 A JP2083383 A JP 2083383A JP 8338390 A JP8338390 A JP 8338390A JP H03284641 A JPH03284641 A JP H03284641A
Authority
JP
Japan
Prior art keywords
reaction
bisphenol
subjected
products
solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2083383A
Other languages
Japanese (ja)
Inventor
Masashi Inaba
Teruhiko Ishii
Takashi Sakatani
Original Assignee
Mitsubishi Petrochem Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Petrochem Co Ltd filed Critical Mitsubishi Petrochem Co Ltd
Priority to JP2083383A priority Critical patent/JPH03284641A/en
Publication of JPH03284641A publication Critical patent/JPH03284641A/en
Granted legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

PURPOSE: To obtain a highly pure bisphenol A crystal in a high yield by reacting phenol with acetone in the presence of an acid catalyst, crystallizing, separating the reaction product, subjecting the remained mother solution to a purification process accompanied with the cleavage reactions of by-products to remove the impurities, and subsequently recycling the remained products.
CONSTITUTION: Phenol is reacted with acetone in the presence of an acid catalyst and water and the catalyst are removed from the reaction solution containing crude bisphenol A. The solution is concentrated, cooled and subjected to a crystallization process and then to a solid-liquid separation process. Furthermore phenol contained in the solid phase portion is removed to obtain highly pure bisphenol A. The remained mother solution is concentrated, cooled and subsequently subjected to a solid-liquid separation process. The solid phase portion is mixed with the crude bisphenol A and recycled. The liquid phase portion is subjected to a cleavage reaction in the presence of an alkali catalyst to remove most of the reaction by-products. The reaction solution is subjected to a recombination reaction and subsequently recycled into the reaction system. The method does not cause the recyclization and accumulation of the impurities, minimizes the contamination of the processes and provides the slightly colored bisphenol A having a high quality.
COPYRIGHT: (C)1991,JPO&Japio
JP2083383A 1990-03-30 1990-03-30 Production of bisphenol a Granted JPH03284641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2083383A JPH03284641A (en) 1990-03-30 1990-03-30 Production of bisphenol a

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2083383A JPH03284641A (en) 1990-03-30 1990-03-30 Production of bisphenol a

Publications (1)

Publication Number Publication Date
JPH03284641A true JPH03284641A (en) 1991-12-16

Family

ID=13800902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2083383A Granted JPH03284641A (en) 1990-03-30 1990-03-30 Production of bisphenol a

Country Status (1)

Country Link
JP (1) JPH03284641A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5629457A (en) * 1993-02-16 1997-05-13 Tianjin University Dephenolizing process for production of high-quality polycarbonate grade bisphenol A
US5648561A (en) * 1993-02-17 1997-07-15 China Petro-Chemical Corporation Process for the production of high purity and ultrapure bisphenol-A
WO2004108643A1 (en) * 2003-06-04 2004-12-16 Idemitsu Kosan Co., Ltd. Process for producing bisphenol a
JP2008156321A (en) * 2006-12-26 2008-07-10 Mitsui Chemicals Inc Method for producing bisphenols
JP2009196930A (en) * 2008-02-21 2009-09-03 Mitsui Chemicals Inc Method for producing bisphenol a

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5629457A (en) * 1993-02-16 1997-05-13 Tianjin University Dephenolizing process for production of high-quality polycarbonate grade bisphenol A
US5648561A (en) * 1993-02-17 1997-07-15 China Petro-Chemical Corporation Process for the production of high purity and ultrapure bisphenol-A
WO2004108643A1 (en) * 2003-06-04 2004-12-16 Idemitsu Kosan Co., Ltd. Process for producing bisphenol a
JP2008156321A (en) * 2006-12-26 2008-07-10 Mitsui Chemicals Inc Method for producing bisphenols
JP2009196930A (en) * 2008-02-21 2009-09-03 Mitsui Chemicals Inc Method for producing bisphenol a

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