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Citation: GUO Yanyan, LIU Ying, HU Ruisheng, GAO Guanjun, SUN Hongjuan. Preparation and Optimization of SnCl₂-ZnCl₂/C Mercury-free Catalyst for Acetylene Hydrochlorination[J]. Chinese Journal of Applied Chemistry, ;2014, 31(5): 624-626. doi: 10.3724/SP.J.1095.2014.30337 shu

Preparation and Optimization of SnCl₂-ZnCl₂/C Mercury-free Catalyst for Acetylene Hydrochlorination

1.
College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China

Corresponding author: LIU Ying,
Received Date: 8 July 2013
Available Online: 23 September 2013
Fund Project: 国家自然科学基金资助项目(21266015,20806036) (21266015,20806036)

Mercury-free catalyst SnCl₂-ZnCl₂/C for acetylene hydrochlorination was prepared by ultrasound method.Rare earth compounds were added to stabilize the performance of the catalyst.The optimal mass ratio of the active component SnCl₂ and ZnCl₂ is 2:1,which was determined by golden section and parabolic method.At 140℃,acetylene space velocity 300 h^-1,V(HCl)/V(C₂H₂)=1.10,in the presence of a catalyst composed by 0.67 g SnCl₂,0.33 g ZnCl₂,0.05 g Tb₄O₇,and 4 g calcined activated carbon(AC) supporter,the highest 67.70% acetylene average conversion rate was achieved.The preparation method of the supporter was found to be the most important effect factor of the catalyst performance.
- acetylene hydrochlorination,
- mercury-free catalyst,
- orthogonal experiment,
- ultrasound
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Preparation and Optimization of SnCl₂-ZnCl₂/C Mercury-free Catalyst for Acetylene Hydrochlorination