Effect of change of Ca, P and Mg on the surface of catalyst prepared from phosphate tailing on urea alcoholysis

Yanhua Xiao,Chunpeng Xiang,Hanmin Lei,Shiwei Jin,Xia Yin,Yigang Ding,Zhiping Du

doi:10.1016/j.catcom.2019.105712

Effect of change of Ca, P and Mg on the surface of catalyst prepared from phosphate tailing on urea alcoholysis

Yanhua Xiao, Chunpeng Xiang + Show 5 more

https://doi.org/10.1016/j.catcom.2019.105712

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Journal: Catalysis Communications	Publication Date: May 25, 2019
Citations: 6

Affiliation: Wuhan Institute of Technology, South Central University for Nationalities

#Urea Alcoholysis #Strong Basic Sites + Show 8 more

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Abstract

A basic catalyst for urea alcoholysis to propylene carbonate (PC) was prepared from a solid waste, phosphate tailing (PT), and was characterized by TGA, BET, XRD, CO2-TPD and EDS. The PC yield was found to be related to the total content of Mg, Ca and P elements and strong basic sites on the catalyst surface. PT-800-4 possessed the highest total content, which led to the formation of strong basic sites and the highest PC yield of 81.8% with the 95.6% selectivity at the catalyst amount of 0.22 wt% (based on urea), and could be reused at least 5 times.

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