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2 038 357

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IPC

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Application

5014209/05, 1991-08-29

(22)

Actual filing date

1991-08-29

(45)

Published

1995-06-27

(72)

Inventor

Mukhitov I.Kh.Nevzorov V.E.Jusupov N.Kh.Arkhireev V.P.Kalashnikov Ju.S.Kuznetsova O.N.Ehjdel'Man V.Ja.Ivashova R.K.

(73)

Holder

Kazanskoe Aktsionernoe Obshchestvo Sintez"

METHOD OF WASTE UTILIZATION IN ACETOPHENOL PRODUCTION Russian patent published in 1995 - IPC

Abstract RU 2038357 C1

FIELD: splint-slab plate manufacture. SUBSTANCE: waste in acetophenol production were utilized by waste condensation containing phenol, cumylphenol, α-methylstyrene, dimethylphenylcarbinol, acetophenol, a-methylstyrene dimers and resin substances with formaldehyde in the presence of sodium or potassium hydroxide. Temperature is 95 C as self-heating effect. Mixture is stirred for 30 min, then boric acid is added for neutralization, and carbamide waste is added (5-15% of mass). Prepared reaction mass is dried at 50-60 C under residual pressure 10-15 mm mercury column. Resin has 0.11-1.4% acetophenol, 0.05-0.12% phenol and 0.2-5.3% formaldehyde. EFFECT: improved method of waste utilization. 1 tbl

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RU 2 038 357 C1

Authors

Mukhitov I.Kh.

Nevzorov V.E.

Jusupov N.Kh.

Arkhireev V.P.

Kalashnikov Ju.S.

Kuznetsova O.N.

Ehjdel'Man V.Ja.

Ivashova R.K.

Dates

1995-06-27—Published

1991-08-29—Filed

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