Process for the production of ketene dimers

Details Process for the production of ketene dimers Process for the production of ketene dimers

1994-02-18

1995-03-21

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568302, C07C 4545

Patent

active

053997743

ABSTRACT:
Production of ketene dimers from fatty acid halides by reaction with tertiary amines whereby the tertiary amine is used both as a reactant and as a solvent/diluent. In the process at least 1.15 moles of tertiary amine is used per mole of fatty acid halide and the process is carried out in the substantial absence of an additional solvent, whereby the produced ketene dimer is obtained by stripping of the tertiary amine followed by separation of formed crystals of tertiary amine hydrogen halide by acid extraction.

REFERENCES:
Abstract of JP 63-264544, Kokai, Nov. 1, 1988.

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