Process for purifying halogenosilanes and halogenogermanes

Details Process for purifying halogenosilanes and halogenogermanes Process for purifying halogenosilanes and halogenogermanes

C - Chemistry, Metallurgy

01

B

202/95

C01B 33/08 (2006.01) C01G 17/04 (2006.01)

Patent

CA 1079679

PROCESS FOR PURIFYING HALOGENOSILANES Halogenosilanes and halogenogermanes which are contaminated by a boron-containing impurity are purified by treatment with an effective amount of a hydrated metal oxide or a hydrated silicate containing from about 3 to about 8% by weight of water, and then distilling the treat- ed halogenosilane or halogenogermane at a temperature about 3° to about 15°C above its boiling temperature, and at atmosphere pressure.

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