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US 2019/0315682 A1Published application
Method for preparing l-methionine crystals using crystallization technique
AssigneeCj Cheiljedang Corporation
InventorsJun-Woo KIM, In Sung LEE
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Abstract
The present application relates to a method for preparing L-methionine crystals with an improved bulk density. As the L-methionine crystals prepared according to the method for preparing L-methionine crystals of the present application may have a bulk density of up to 800 g/L, the L-methionine crystals are expected to reduce storage and transport costs of L-methionine powder and improve working conditions due to improved fluidity of the powder.
Claims13
A method for preparing L-methionine crystals, comprising:
- (a) adding a pH control agent to an aqueous solution comprising L-methionine to lower or increase the pH (a step of pH adjustment);
- (b) heating the aqueous solution comprising L-methionine (a step of heat treatment);
- and
- (c) extracting L-methionine crystals from the aqueous solution comprising L-methionine, which underwent pH adjustment and heat treatment (a step of extraction of crystals).
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