METHOD FOR PREPARING 1,2-DICHLOROETHANE WITH COMBINED ELIMINATION OF HEAT Russian patent published in 2007 - IPC C07C17/02 C07C19/45 

Abstract RU 2299876 C2

FIELD: chemical technology.

SUBSTANCE: invention relates to a method for synthesis of 1,2-dichloroethane by method of liquid-phase chlorination of ethylene. Method involves maintaining the optimal ratio of heat eliminated based on evaporation and heat eliminated based on cooling a liquid medium in a heat exchanger in the process. One-sixth part of heat formed in reactor is eliminated based on evaporation of synthesized compound in boiling and 5/6 part of formed heat is eliminated based on circulation of liquid working medium in external heat exchanger. The temperature gradient in the reaction zone is maintained equal 52°C. Invention provides enhancing selectivity of process and reducing amount of by-side products of reaction (higher chlorine-derivate of ethane).

EFFECT: improved method of synthesis.

3 dwg, 1 ex

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RU 2 299 876 C2

Authors

Bal'Chugov Aleksej Valer'Evich

Podoplelov Evgenij Viktorovich

Ul'Janov Boris Aleksandrovich

Dement'Ev Anatolij Ivanovich

Dates

2007-05-27Published

2005-05-05Filed