Elf Atochem S.a.

Arkema Inc.

Philippe Leduc

Yves Correia

Gilles Drivon

Sylvie Frances

Noel Fino

Disclosed are a method for reducing the elementary halogen contained in a gaseous effluent from a combustion furnace by bringing the effluent into contact with hydrazine, and a device or an installation for treating a gaseous effluent from a combustion furnace, and a solution of halohydric acid containing hydrazine.

Method for reducing elementary halogen in a gaseous effluent

A process for the production of hydrogen bromide gas by direct combustion of bromine in hydrogen involves carrying out the combustion reaction in an apparatus chamber made of impregnated graphite, a chamber outlet composed of a cylindrical segment disposed between a converging segment and a diverging segment, and a cooling zone composed of a steel jacket in which are piled block of impregnated graphite.

Manufacture of hydrogen bromide gas

The invention relates to a process for the alcoholysis of carbon tetrachloride which consists in simultaneously sending, on the one hand, carbon tetrachloride and, on the other hand, an alcohol ROH, over a catalytic composition, characterized in that the said catalytic composition comprises an aqueous solution of a metal halide.

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Saint Sorlin, France

Philippe Leduc