Effect of impregnation procedure of La2O3 precursor on copper-based catalysts for ethane oxychlorination

Ethane-Based Catalytic Process for Vinyl Chloride Manufacture

The use of ethane as a platform molecule for the manufacture of polyvinyl chloride (PVC) is a longstanding challenge, which would allow to reduce the raw material costs and CO₂ emissions to produce this plastic. Herein, we discover that rare earth oxychlorides catalyze in a selective (up to 90 %) and stable (>50 h on stream) manner the reaction of ethane and molecular chlorine into 1,2-dichloroethane, which, upon established cracking, will translate into an order of magnitude higher vinyl chloride productivity compared to ethane oxychlorination technologies. In addition, representative europium oxychloride was supported on suitable carriers and was demonstrated to be selective (up to 90 %) and stable (>40 h on stream) in extrudate form. These findings bring the ethane-based production of PVC one step closer to implementation.

The role of KCl in FeCl3–KCl/Al2O3 catalysts with enhanced catalytic performance for ethane oxychlorination

The Mossbauer spectrum and other characterization studies proved that the formation of KFeCl₄ enhanced the catalytic performance for ethane oxychlorination.