Chao Hua

Method and apparatus for preparing trichlorosilane through rectification by using proportionate reaction

Fiber-level high purity silicon tetrachloride continuous azeotropy lightness removing rectification method

System for separating and purifying trichlorosilane in production process of polysilicon and operation method thereof

Clapboard adsorption device and method for removing boron impurities in chlorosilane system

Separation apparatus and method of high precision rectification purify trichlorosilane

Heat-exchange network device for refining crude benzene and method of operation

Apparatus and method for separating 5-bromo-2-methyl pyridine isomer by intermittent rectification under vacuum

Method and device for removing boron impurity in chlorosilane system by rectification through double-tower thermocouple reaction

Apparatus and method for treating water containing white oil stain

Continuous process and device for the separation of benzyl chloride regular packing column