Title:
ビスフェノールAの製造方法
Document Type and Number:
Japanese Patent JP4466079
Kind Code:
B2
Abstract:
A system and method are provided for producing Bisphenol-A (BPA) using direct crystallization of BPA in a single crystallization stage. In one embodiment the method comprises reacting Phenol and Acetone in the presence of a catalyst to form a product solution including Bisphenol-A and Phenol; removing a part of the Phenol from the product solution if required, and providing a selective amount of solvent, so as to obtain a product solution with the desired phase equilibrium behavior; and feeding the product solution with a selective composition to a crystallization stage operated at a selected temperature, so as to recover substantially pure Bisphenol-A in crystal form.
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Inventors:
Oh Young Lionel
Shae Shan Tao
Kerker Wybau
Shae Shan Tao
Kerker Wybau
Application Number:
JP2003574601A
Publication Date:
May 26, 2010
Filing Date:
March 13, 2003
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C07C37/84; C07C37/20; C07C39/16
Domestic Patent References:
| JP54098749A | ||||
| JP62178534A | ||||
| JP5194295A | ||||
| JP2001316313A | ||||
| JP11279094A | ||||
| JP11152240A |
Attorney, Agent or Firm:
Kenji Izumina
Toshiharu Ogawa
Ryozo Yamamoto
Toshiharu Ogawa
Ryozo Yamamoto