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Hexamethylcyclotrisiloxane USES preparation method with sulfonated, isopropyl benzene, chlorobenzene hydrolysis method, crude phenol refining method, oxidation of benzene and toluene oxidation method of six. Our country mainly uses sulfonated method and isopropyl benzene method. The sulfonation method takes benzene as raw material, produces benzene sulfonic acid by sulfonation with sulfuric acid, neutralizes with sulfite, and then melts with caustic soda. It is prepared by steps such as sulfonation and vacuum distillati... more