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The progress and prospect of organic silicon monomer synthesis reaction (Rochow-Müller Process)-towards molecular catalysis and sustainable development of organic silicon industry

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     Organic silicon materials have the dual characteristics of inorganic and organic materials and are known as "industrial monosodium glutamate". They are widely used in aerospace, electronic and electrical, chemical and light industry, automotive, machinery, construction, agriculture, medicine and medical industries, and they are irreplaceable The role of. The basic raw material of organosilicon materials is organosilicon monomer, which is produced through the action of methyl chloride and silicon powder under the action of copper-based catalytic materials. This method was independently invented by Eugene G. Rochow and Richard Müller in the 1940s, so it is also called the Rochow-Müller Process. This reaction generally can obtain the main product dimethyldichlorosilane (M2) monomer raw material, which accounts for about 85% of the total product. "). In addition, this method utilizes gas-solid catalytic reaction. The catalyst evolves by reacting with the reactants during the reaction process. The process is relatively complicated, and some problems such as catalytic mechanism and active center structure are still unclear. Therefore, the development of high-efficiency copper-based catalysts, further clarification of the catalytic reaction mechanism, and reasonable disposal and utilization of by-products and waste contacts are not only the requirements of atomic economy, but also the inevitable choice of the environment and the times under sustainable development.
     Recently, the team of researcher Su Fabing from the Institute of Process Engineering of the Chinese Academy of Sciences (Ph.D. student Zhang Yu is the first author of the paper) and Professor Zhong Ziyi of the Guangdong Technion-Israel Institute of Technology have worked together to focus on molecular catalysis and atomic economy. The research progress of Joe-Müller reaction is reviewed, and the future development direction is prospected. On the one hand, the research on catalysts and catalytic mechanism has been summarized and summarized. It can be seen that nanotechnology has promoted the development of copper-based catalysts and the understanding of the reaction mechanism. However, it is still necessary to further reveal the reaction mechanism and achieve the optimization of catalytic performance. More in-depth structural characterization and analysis, including the application of some in-situ testing methods, and the help of precise and controllable synthesis methods; on the other hand, the principles and strategies for the comprehensive utilization of waste contact bodies and by-products are summarized, but they still exist The problem of low atom utilization and secondary pollution. Therefore, future research on the Rocho-Müller reaction may need to focus on the following three aspects: (1) high-efficiency molecular catalysis; (2) revealing the catalytic mechanism; (3) environmental and ecological evaluation. This review not only contributes to the development of new catalysts and the exploration of reaction mechanisms, but also provides a direction for the technological innovation and sustainable development of the organosilicon industry.

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