Catalytic hydrodehalogenation of halogen-containing compounds of

Details Catalytic hydrodehalogenation of halogen-containing compounds of Catalytic hydrodehalogenation of halogen-containing compounds of

1994-12-08

1998-02-10

Langel, Wayne

Chemistry of inorganic compounds

Silicon or compound thereof

Halogen containing

423350, 556466, 556467, 556475, 570101, 570156, 570230, C01B 3302, C01B 3308, C07C 1725, C07F 714

Patent

active

057165904

ABSTRACT:
Catalytic dehalogenation (or hydrodehalogenation) of halogen-containing compounds of elements of group IV of the periodic table in the presence of hydrogen is carried out using a finely-dispersed catalytically active material which comprises silicon and at least one transition metal, and which is characterized by high catalytic activity and stability. This process can be used, for example, for synthesizing compounds or alternatively for decomposing halogen-containing compounds, for instance in waste-water or waste-gas purification processes. It is also suitable for dehalogenation (hydrodehalogenation) of halogen-containing silane compounds, for instance of silicon tetrachloride or alkyl trichlorosilane compounds, and the original purity of the silanes used as starting materials is retained by the products. Tetrachlorosilane, for example, can be converted into trichlorosilane.

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