OLEFINE SYNTHESIS METHOD Russian patent published in 2009 - IPC C07C1/26 C07C11/02 

Abstract RU 2356876 C2

FIELD: chemistry.

SUBSTANCE: present invention relates to the method of synthesising olefins. The method involves the following stages: inflow of a stream of alkanes, which are by-products of production of olefins; inflow of a second reagent, which is a halogenide chosen from a group consisting of chlorine, bromine and iodine; reaction of the stream of alkanes and the second reagent, forming the first products of the reaction and a halogen and hydrogen compound; separation of the first products of the reaction from the halogen and hydrogen compound; reaction of the first products of the reaction with a solid oxidising agent, forming a stream of olefins and a spent oxidising agent; oxidation of the spent oxidising agent, obtained from oxidation of the first products of the reaction, obtaining the initial solid oxidising agent and the initial second reagent; recycling the solid oxidising agent; and recycling the second reagent; reaction of the halogen and hydrogen compound with the solid oxidising agent, forming water and spent oxidising agent; oxidation of the spent oxidising agent, obtained from oxidation of the halogen and hydrogen compound, so as to obtain the initial solid oxidising agent; and recycling the solid oxidising agent.

EFFECT: selective production of olefins with possibility of combining the proposed method with existing olefin production devices, thereby increasing output at minimal extra input.

11 cl, 6 dwg, 4 ex

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RU 2 356 876 C2

Authors

Sherman Dzheffri Kh.

Makfarland Ehrik V.

Vajs Majkl Dzh.

Lorkovich Ivan Mark

Lehjverman Leroj E.

Sun' Shouli

Shefer Diter Dzh.

Staki Gehjlen

Ford Piter

Dates

2009-05-27Published

2003-11-19Filed