Process for the preparation of malic acid crystals

Details Process for the preparation of malic acid crystals Process for the preparation of malic acid crystals

1976-02-17

1977-07-12

Killos, Paul J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260537N, C07C 5912

Patent

active

040354199

ABSTRACT:
A process for producing crystals of malic acid having a uniform high purity using maleic acid or fumaric separately or together. The reaction mixture is cooled, resulting solids are separated and the resulting liquid is concentrated and then cooled to a specified temperature range according to the concentration of malic acid in weight %. The resulting solid is separated and the remaining liquid is cooled to 19.degree. to 21.degree. C to crystallize malic acid.

REFERENCES:
patent: 3875222 (1975-04-01), Weinrotter et al.

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