METHOD OF OBTAINING MONOMERS AND POLYMERS THEREOF Russian patent published in 2010 - IPC C12P13/02 C12P7/40 C12P7/62

Abstract RU 2390565 C2

FIELD: chemistry; biochemistry.

SUBSTANCE: invention relates to biotechnology, particularly to a method of obtaining ethylene unsaturated amide or ethylene unsaturated carboxylic acid or its salt from the corresponding ethylene unsaturated nitrile, in which the nitrile is hydrated or hydrolysed in an aqueous medium in the presence of a biocatalyst, where the nitrile contains more than 2 parts by weight per million acrolein and amide or carboxylic acid or its salt contains 2 parts by weight per million acrolein. The method can be used to obtain acrylamide or acrylic acid (salt) of high purity from low-quality acrylonitrile containing a lot of acrolein. Suitable biocatalysts include Rhodococcus bacteria.

EFFECT: invention increases efficiency of producing ethylene unsaturated amide or ethylene unsaturated carboxylic acid or its salt from the corresponding ethylene unsaturated nitrile and provides a method of producing a polymer of ethylene unsaturated monomer.

26 cl, 4 ex

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RU 2 390 565 C2

Authors

Mistri Dajnesh

Kullar Dzhatinder Singkh

Dates

2010-05-27—Published

2005-07-01—Filed