Process for producing bisphenol a
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United States of America Patent
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Issued Date -
Jan 16, 2003
app pub date -
Aug 27, 2002
filing date -
Jan 11, 2001
priority date (Note) -
Abandoned
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Abstract
In the production of bisphenol A by condensation of phenol and acetone with the use of a cation exchange resin as a catalyst and a free mercaptan as a promoter, the superficial velocity of raw material within the reaction column packed with a cation exchange resin is controlled to be in the range of 1.5 m/hr to 6 m/hr. With this method, the degree of conversion of phenol can be improved, and bisphenol A can be effectively produced.
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