公开(公告)号：US20230219820A1

公开(公告)日：2023-07-13

申请号：US18095006

申请日：2023-01-10

Applicant: Institute of Process Engineering, Chinese Academy of Sciences

Inventor： Chao HUA ,  Hongxing WANG ,  Fang BAI ,  Ping LU ,  Hai LI

IPC: C01B33/107 ,  B01D3/00 ,  B01D3/14

CPC classification number: C01B33/1071 ,  B01D3/009 ,  B01D3/143

Abstract: A cracking process for a reaction distillation of chlorosilane slurry includes feeding a chlorosilane slurry into a phase separator, drying a solid phase, feeding a chlorosilane polymer into a plate distillation column, returning kettle materials of the plate distillation column, and dividing a material produced from a top of the column. The process adopts an ionic liquid catalyst, which is environmentally friendly and reusable. The cracking and distillation of chlorosilane polymer are carried out simultaneously to shorten the time and increase the utilization rate of raw materials, which can reduce energy consumption and save costs and facilitate industrial production. A plate column is used as a distillation column, in which the two phases of the gas and liquid are sufficiently contacted. Therefore, the transfer of mass and heat is good, the production capacity is good, and the tower is not easily blocked, thereby making it easy to clean.