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(19)

RU

(11)

2 182 928

(13)

C2

(51)

IPC

(21) (22)

Application

98112924/13, 1996-12-12

(24)

Start date

1996-12-12

(22)

Actual filing date

1996-12-12

(45)

Published

2002-05-27

(72)

Inventor

Sajms Kennet Charl'ZKh'Jus Dzhonatan

(73)

Holder

Tsiba Speshialti Kemikalz Uoter Tritments Limited

METHOD OF PREPARING (METH)ACRYLIC ACID OR ITS SALT AQUEOUS SOLUTION Russian patent published in 2002 - IPC

Abstract RU 2182928 C2

FIELD: organic chemistry, chemical technology. SUBSTANCE: solution of high concentration of ammonium(meth)acrylate and no containing (meth)acrylonitrile practically is obtained by enzymatic hydrolysis of (meth)acrylonitrile in the presence of water using enzyme exhibiting value Km for (meth)acrylonitrile below 500 mcM and value Ki for ammonium(meth)acrylate above 100 000 mcM. Preferably, enzyme obtained by culturing Rhodococeus rhodochrous NCI MB 40757 or NCI MB 40833 is used. Product obtaining by this method has no impurities practically. EFFECT: enhanced effectiveness and economy of method as compared with known chemical methods. 19 cl, 3 ex

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RU 2 182 928 C2

Authors

Sajms Kennet Charl'Z

Kh'Jus Dzhonatan

Dates

2002-05-27—Published

1996-12-12—Filed

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