Deactivation of phosphonium salt catalyst

Details Deactivation of phosphonium salt catalyst Deactivation of phosphonium salt catalyst

C - Chemistry, Metallurgy

08

G

252/124, 402/261

C08G 59/00 (2006.01) B01J 27/14 (2006.01) C08G 59/68 (2006.01)

Patent

CA 1309548

A B S T R A C T DEACTIVATION OF PHOSPHONIUM SALT CATALYST A process for deactivating a hydrocarbyl phosphonium salt catalyst in an epoxy resin fusion reaction by contacting with a sulphonic acid, such as p-toluenesulphonic acid or methane sulphonic acid. The process is particularly suited for deactivation of moisture-resistant phosphonium salts such as methylene bis(triphenyl phosphonium halide)s.

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