Catalyst system and process for producing bisphenol-A
AssigneeBadger Licensing LLC
InventorChristopher Papile
Life of this patent
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Abstract
A catalyst system useful in the production of bisphenol-A comprises (a) an acidic heterogeneous catalyst; (b) a first catalyst promoter comprising at least one organic sulfur-containing compound; and (c) a second catalyst promoter different from the first catalyst promoter and comprising at least one organic Brønsted acidic ionic compound.
Claims14
A catalyst system useful in the production of bisphenol-A comprising:
- (a) an acidic heterogeneous catalyst comprising an ion exchange resin;
- (b) a first catalyst promoter comprising at least one organic sulfur-containing compound;
- and
- (c) a second catalyst promoter different from the first catalyst promoter and comprising at least one organic Bronsted acidic ionic compound.
A process for producing bisphenol-A by the reaction of acetone and phenol in a reaction medium in the presence of a catalyst system, wherein the catalyst system comprises:
- (a) an acidic heterogeneous catalyst;
- (b) a first catalyst promoter comprising at least one organic sulfur-containing compound;
- and
- (c) a second catalyst promoter different from the first catalyst promoter and comprising at least one organic Bronsted acidic ionic compound.
A catalyst system useful in the production of bisphenol-A comprising:
- (a) an acidic heterogeneous catalyst comprising a sulfonated ion exchange resin;
- (b) a first catalyst promoter comprising at least one organic sulfur-containing compound;
- and
- (c) a second catalyst promoter different from the first catalyst promoter and comprising at least one organic Bronsted acidic ionic compound which comprises a cation having a quaternized N-atom or is a zwitterionic compound.
Dependencies are inferred from the claim text.