| 摘要 |
<p>A method for preparing a reaction product including a diorganodihalosilane includes steps (i) and (ii). Step (i) is contacting a metal oxide supported copper catalyst with ingredients including ingredient (a) and ingredient (b). Ingredient (a) is H2, and ingredient (b) a tetrahalosilane of formula SiX4, where each X is independently halo. Step (i) is performed at a temperature from 200 °C to 1400°C. The product of step (i) is a Si-containing copper catalyst free of promoters. Step (ii) is contacting the Si-containing copper catalyst with an organohalide at a temperature from 100°C to 600 °C. The method forms the reaction product and a spent catalyst. The reaction product may include a diorganodihalosilane of formula R2SiX2, where each R is independently a monovalent organic group.</p> |
