Separation by atomization of by-product stream into particulate

Details Separation by atomization of by-product stream into particulate Separation by atomization of by-product stream into particulate

1991-04-26

1992-06-02

Kunemund, Robert

Chemistry of inorganic compounds

Silicon or compound thereof

Elemental silicon

423342, 423347, 423DIG20, 55 97, C01B 3318

Patent

active

051184869

ABSTRACT:
The present invention is a process for separating particulate silicon from a liquid by-product stream containing silanes. The liquid by-product stream comprising silanes and particulate silicon is atomized into a heated zone to effect vaporization of the liquid silanes, thus drying the particulate silicon. The dried particulate silicon is separated from the gaseous silanes by filtration or other suitable means. The separated solid and gaseous phases may be used as feed to the process generating the by-product stream or as a feed for other processes.

REFERENCES:
patent: 4515762 (1985-04-01), Griesshammer et al.
patent: 4519999 (1985-05-01), Coleman et al.
patent: 4629771 (1986-12-01), Candlin et al.
patent: 4642208 (1987-02-01), Masaru
patent: 4666990 (1987-04-01), Candlin et al.
patent: 4881952 (1989-11-01), Masaru

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