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2 155 184

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Application

99109303/04, 1999-04-27

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Start date

1999-04-27

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Actual filing date

1999-04-27

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Published

2000-08-27

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Inventor

Kutjanin L.I.Mudryj F.V.Glinskij Ju.D.Peshkov V.V.Kuznetsov A.A.

(73)

Holder

Volgogradskoe Otkrytoe Aktsionernoe Obshchestvo

METHOD OF PREPARING BENZOIC ACID Russian patent published in 2000 - IPC

Abstract RU 2155184 C1

FIELD: technology of preparation of benzoic acid. SUBSTANCE: described is preparation of benzoic acid by hydrolysis of methyl ester thereof. Neutralization of the resulting sodium benzoate is carried out with aqueous hydrochloric acid solution. Crystallization is carried out from solution containing 7-13% of benzoic acid and does not exceed 1 deg per minute during crystallization period. EFFECT: increased yield of the desired product. 4 ex

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RU 2 155 184 C1

Authors

Kutjanin L.I.

Mudryj F.V.

Glinskij Ju.D.

Peshkov V.V.

Kuznetsov A.A.

Dates

2000-08-27—Published

1999-04-27—Filed

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