Title:
ION EXCHANGE RESIN AND PREPARATION OF BISPHENOLS USING SAME AS CATALYST
Document Type and Number:
Japanese Patent JP3700361
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a modified highly acidic sulfonic acid type ion exchange resin useful as a catalyst for preparation of bisphenol A by condensation reaction of phenol and acetone with a high rate of conversion of acetone, high selectivity of 4,4'-bisphenol A and good stability and to prepare bisphenol using the ion exchange resin as a catalyst.
SOLUTION: A mercatoamine compd. represented by the formula (where each of R1 and R2 is 2-4C alkylene which may have 1 or 2C alkyl, 5-10C cycloalkyl or 6-15C aryl as a substituent) is ionic-bonded to a highly acidic sulfonic acid type ion exchange resin to obtain the objective modified highly acidic sulfonic acid type ion exchange resin. Phenols and ketones are condensed in the presence of the modified highly acidic sulfonic acid type ion exchange resin to prepare the objective bisphenols.
Inventors:
Watanabe Michi
Takeo Koshikawa
Hiroo Miyauchi
Whale
Hiroshi Iwane
Takeo Koshikawa
Hiroo Miyauchi
Whale
Hiroshi Iwane
Application Number:
JP34917197A
Publication Date:
September 28, 2005
Filing Date:
December 18, 1997
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
B01J31/10; B01J39/18; C07B61/00; C07C37/20; C07C39/16; C09K23/32; (IPC1-7): B01J39/18; B01F17/32; B01J31/10; C07C37/20; C07C39/16
Domestic Patent References:
| JP9024279A | ||||
| JP57072927A | ||||
| JP5317686A | ||||
| JP8040961A | ||||
| JP63146836A | ||||
| JP60137440A | ||||
| JP8187436A |
Attorney, Agent or Firm:
Hasegawa Soji