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2 515 975

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(51)

IPC

C07C31/36(2006-01-01)

C07C29/86(2006-01-01)

(21) (22)

Application

2012138770/04, 2012-09-10

(24)

Start date

2012-09-10

(22)

Actual filing date

2012-09-10

(45)

Published

2014-05-20

(72)

Inventor

Konturov Aleksej Valer'EvichUlitina Svetlana AleksandrovnaPavel'Eva Nadezhda PetrovnaTikhonova Ljubov' Mikhajlovna

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Sinteticheskogo Kauchuka"

METHOD OF WASTE ETHYLENE CHLOROHYDRIN REGENERATION Russian patent published in 2014 - IPC C07C31/36 C07C29/86

Abstract RU 2515975 C2

FIELD: chemistry.

SUBSTANCE: method includes multiple liquid-liquid extraction of aqueous ethylene chlorohydrin with 2,2'-dichlorodiethylformal, if possible, until complete separation of ethylene chlorohydrin from extraction liquid, and further vacuum distillation of extracting mixture into fractions of ethylene chlorohydrin and 2,2'-dichlorodiethylformal. Extraction liquid is returned, for instance, to the stage of polycondensation of polysulfide polymer.

EFFECT: method makes it possible to obtain economy of raw material resources and reduce pollution of environment with highly toxic wastes.

2 ex

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RU 2 515 975 C2

Authors

Konturov Aleksej Valer'Evich

Ulitina Svetlana Aleksandrovna

Pavel'Eva Nadezhda Petrovna

Tikhonova Ljubov' Mikhajlovna

Dates

2014-05-20—Published

2012-09-10—Filed