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2 083 558

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C1

(51)

IPC

(21) (22)

Application

93040109/14, 1993-08-06

(22)

Actual filing date

1993-08-06

(45)

Published

1997-07-10

(72)

Inventor

Mikhalkin A.P.Vlasov V.N.Marshalkin V.N.

(73)

Holder

Nauchno-Proizvodstvennoe Tovarishchestvo Pav"

PROCESS FOR PREPARING N-ACYLAMINO ACID AND SALTS THEREOF HAVING SURFACE ACTIVE AND FLOTATION PROPERTIES Russian patent published in 1997 - IPC

Abstract RU 2083558 C1

FIELD: various engineering fields, more particularly process for preparing N-acylamine acids and salts thereof. SUBSTANCE: claimed process comprises adding to carboxylic acid esters aqueous amino acid salts at 140-160 C and maintaining reaction mixture at 160-190 till reaction is completed. The claimed process makes it possible to simplify process technology and improved efficiency of the main technological equipment. EFFECT: more efficient preparation process. 2 tbl

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RU 2 083 558 C1

Authors

Mikhalkin A.P.

Vlasov V.N.

Marshalkin V.N.

Dates

1997-07-10—Published

1993-08-06—Filed

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