| 单词 | Direct process |
| 释义 |
Direct process
原声例句
TED演讲（视频版） 2020年10月合集 This genetic material directs the hijacking process, converting that cell into a factory first to make more copies of the instruction set, and then all the other components of the virus and assemble them into a particle. 这种遗传物质指导劫持过程，首先将该细胞转化为工厂以复制更多指令集， 然后将病毒的所有其他成分组装成一个粒子。
英语百科
Direct processThe Direct Process, also called the Direct Synthesis, Rochow Process, and Müller-Rochow Process is the most common technology for preparing organosilicon compounds on an industrial scale. It was first reported independently by Eugene G. Rochow and Richard Müller in the 1940s. The reaction involves a copper-catalyzed reaction of alkyl halides with silicon metal, which takes place in a fluidized bed reactor. Although theoretically possible with any type of alkyl halide, the best results in terms of selectivity and yield occur with methyl chloride. Typical conditions are 300 °C and 2-5 bar. These conditions allow for 90-98% conversion for silicon and 30-90% for chloromethane. Approximately 1.4 Mton of dimethyldichlorosilane (Me2SiCl2) is produced annually using this process. |
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