Method for processing waste gas and waste liquor in chlorosilane distillation process

The invention discloses a method for processing a waste gas and a waste liquor in a chlorosilane distillation process. The method comprises the following steps: discharging a high-impurity waste gas inside a rectifying tower with the highest overhead low-boiling impurity content in a rectifying towe...

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Bibliographische Detailangaben
Hauptverfasser: WANG JIN, LI SHIYONG, ZHAO SHENGYAN, ZHANG YUNHUA, PING SHUHUANG, LI YONG, ZENG YALONG, LU DAJUN, LUO PING, YAN RICHUN, GU FENG, LI JUNCHAO
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a method for processing a waste gas and a waste liquor in a chlorosilane distillation process. The method comprises the following steps: discharging a high-impurity waste gas inside a rectifying tower with the highest overhead low-boiling impurity content in a rectifying tower system of a chlorosilane distillation process; discharging a high-impurity waste liquor in a rectifying tower with the highest tower kettle high-boiling impurity content; collecting the waste gas containing chlorosilane in the rectifying tower of which the high-impurity waste gas is not discharged out, and transporting to a packing-type chlorosilane condensate storage device; collecting the waste liquor containing the chlorosilane inside the rectifying tower of which the high-impurity waste liquid is not discharged out into a chlorosilane recovery tank; transporting condensate to the chlorosilane recovery tank; pumping mixed liquid in the chlorosilane recovery tank to an absorption bed, so as to obtain chlorosila