【摘要】 用酸处理的活性炭和γ-Al₂O₃组成双段催化剂,通过有机硅高沸物和低沸物的裂解歧化反应制备了甲基氯硅烷,考察了反应温度、质量空速等因素对反应的影响。结果表明:在反应温度360℃、质量空速0.11 h^-1条件下,高沸物的裂解率、甲基氯硅烷和二甲基二氯硅烷的收率分别为75.1%、76.1%和38.3%。该双段催化剂连续使用142 h,仍能保持较高的活性。更多还原

【Abstract】 The conversion of the high-boiling components and low-boiling components of silane to valu- able methylchlorosilane by catalytic cracking and disproportionation catalyzed by acid treated active carbon andγ-Al₂O₃ was studied.The effects of the reaction conditions such as reaction temperature and mass hourly space velocity were investigated.At 360℃,mass hourly space velocity 0.11 h^-1, the conversion of the high-boiling component,the yields of methylchlorosilane and dimethyldichlorosi- lane were 75.1%,76.1% and 38.3%,respectively.After online for 142 h,the catalyst still retained the high activity.更多还原