Recovering values from heavy ends in bisphenol-a production

Details Recovering values from heavy ends in bisphenol-a production Recovering values from heavy ends in bisphenol-a production

C - Chemistry, Metallurgy

07

D

C07D 311/60 (2006.01) C07C 37/74 (2006.01) C07C 39/16 (2006.01)

Patent

CA 2134329

2134329 9420445 PCTABS00033 In the production of bisphenol-A from the reaction of phenol and acetone, values are recovered from a "heavy ends" fraction by passing the fraction through a thin-film evaporator, making a light fraction which is fractionally distilled into three portions, two of which have recoverable proportions of bisphenol-A, and recovering bisphenol-A from at least one of them.

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