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2 073 647

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(51)

IPC

(21) (22)

Application

93036505/26, 1993-07-14

(22)

Actual filing date

1993-07-14

(45)

Published

1997-02-20

(72)

Inventor

Efremova L.M.Kotusova I.Ju.Storozhenko P.A.

(73)

Holder

Gosudarstvennyj Nauchno-Issledovatel'Skij Institut Khimii I Tekhnologii Ehlementov Organicheskikh Soedinenij

METHOD OF CLEANING WASTE WATER TO REMOVE EPICHLOROHYDRIN AND ITS CONVERSION PRODUCTS Russian patent published in 1997 - IPC

Abstract RU 2073647 C1

FIELD: waste water purification. SUBSTANCE: invention relates to cleaning waste water containing epichlorohydrin and its conversion products formed both in epichlorohydrin production and when used in syntheses. Process is effected by way of adding an alkali agent in amount by 15-50% exceeding its stoichiometric amount required for complete hydrolysis of organically bound chlorine. Reaction mass is then heated at 78-105 C with returning condensed vapor and aged. EFFECT: increased purification degree. 1 tbl

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RU 2 073 647 C1

Authors

Efremova L.M.

Kotusova I.Ju.

Storozhenko P.A.

Dates

1997-02-20—Published

1993-07-14—Filed