Other

Leonid A Oshin

Vagab S Aliev

Nazim M Guseinov

Vladimir M Zimin

Rasim S Mirzoev

Lemel S Genin

Oleg V Polozov

Alla N Melnik

Alish I Mustafaev

Jury A Treger

Nina G Shkondina

Eleonora E Chianurashvili

Gabil S Sharifov

Ljudmila B Sevostianova

Rafael S Sverdlov

Erik V Sonin

Margarita K Morozova

Oleg A Zaidman

Larisa E Paschenko

Ramiz A Dzhabiev

In accordance with the present invention, the process for preparing allyl chloride comprises chlorination of propylene with hydrogen chloride in an upward stream consisting of propylene, hydrogen chloride and a catalyst, i.e. manganese dioxide incorporated in a leaned manganese ore in an amount of 20 to 35% byu weight at a temperature within the range of from 300.degree. to 500.degree. C., concentration of the catalyst in the stream of 130-180 kg/m.sup.3, time of contact between propylene, hydrogen chloride and the catalyst in the stream of 0.2-0.7 sec and a volume ratio between propylene and hydrogen chloride in the stream of 1:3-5 respectively. Then the spent catalyst is separated from the reaction mixture resulting from chlorination, regenerated with oxygen at a temperature of from 500.degree. to 520.degree. C. and recycled to the chlorination process. The process according to the present invention makes it possible to achieve a yield of allyl chloride of up to 81.5 vol. % as calculated for the passed propylene, conversion of propylene of up to 98.0% at a process selectivity of from 80 to 85 vol. %. Furthermore, the process according to the present invention makes it possible to provide a wasteless production of allyl chloride.

Process for preparing allyl chloride

Vinyl chloride is prepared by gas-phase chlorination of a gaseous mixture containing 5 to 50 vol. % of ethane and 50 to 95 vol. % of ethylene. The amount of chlorine supplied into the reaction zone is determined by the formula: number of chlorine moles=3m+ 0.3n, wherein m is the number of moles of ethane and n is the number of moles of ethylene. Chlorine is supplied into at 4 to 6 points of the reaction zone. The method of the present invention makes it possible to increase the yield of vinyl chloride up to 70% by weight, while reducing power consumption for the process 1.5 times as compared to the prior art methods.

Method of preparing vinyl chloride

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Moscow, Russia

Leonid A Oshin