Non-mercury catalyst for acetylene hydrochlorination and method of preparing the same
A non-mercury catalyst, acetylene hydrochlorination technology, applied in the direction of physical/chemical process catalysts, hydrogen halide addition preparation, chemical instruments and methods, etc., can solve the problems of short activity period, catalyst deactivation, low activity, etc., to achieve High selectivity, simple preparation method, and non-toxic active ingredients
Inactive Publication Date: 2008-08-27
SICHUAN UNIV
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The invention discloses a non-mercury catalyst used in the acetylene hydrochlorination and preparation method thereof. The method includes the following steps: (1) dissolving noble metal chloride 0.5-3 parts by weight and base metal chloride 1-10 parts by weight into 2-4 mol/L hydrochloric acid solution to obtain a 0.01-0.05mol/L noble metal chloride solution; (2) adding the activated carbon 100 parts by weight into the solution at room temperature for 5-12 hours; (3) evaporating the immersion liquid on the activated carbon at 80-100 DEG C, drying at 70-80 DEG C for 2-4 hours and calcining at 120-140 DEG C for 4-12 hours; (4) and activating in hydrogen chloride atmosphere for 0.5-3 hours. The inventive catalyst can be used for green synthesis of vinyl chloride monomer to reach a conversion rate of acetylene up to 95-98% and selectivity of vinyl chloride greater than 99%.
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