Method for obtaining 2-hydroxy-4-methylthiobutyric acid (MHA) wh

Details Method for obtaining 2-hydroxy-4-methylthiobutyric acid (MHA) wh Method for obtaining 2-hydroxy-4-methylthiobutyric acid (MHA) wh

1997-12-29

1999-12-28

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

560152, C07C31500

Patent

active

06008409&

ABSTRACT:
A method for obtaining 2-hydroxy-4-methylthiobutyric acid (methionine-hydroxy analog, MHA) in primarily free form which is stable in storage by distilling a product solution containing MHA and by producing MHA product mixtures with improved storage stability from such a distillate. The distillate can be produced directly starting from MHA raw products from any MHA production process, which can optionally also contain solvent or water. The starting material may also be a commercial MHA product.

REFERENCES:
CA 79: 52804 (1973).
CA 109: 54325 (1987).

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