Preparation of K2O/ZrO2 catalyst and its Use in the synthesis of Di-2-ethylhexyl carbonate

Author

Yu Su ; Peng Wang ; Jinsheng Gao

Author_Institution

Sch. of Municipal & Environ. Eng., Harbin Inst. of Technol., Harbin, China

fYear

2011

fDate

15-17 July 2011

Firstpage

6691

Lastpage

6693

Abstract

K₂O/ZrO₂ K₂O/ZrO_2-La₂O_3-x (x=0.4%, 0.5%, 0.6%, 0.7% and 0.8%) catalysts for the synthesis of di-2 ethylhexyl carbonate from dimethyl carbonate and 2-ethyl hexanol were prepared by impregnation method calcinated at 773K, 873K and 973K. The activity of K₂O/ZrO_2-La₂O_3-0.6% catalyst reached the yield of 81.18% for di-2-ethylhexyl carbonate when the calcination temperature was 973K. XRD and Raman measurements of catalysts revealed that the tetragonal and monoclinic zirconia phase were observed in the catalysts. It was benefited to increase the basicity of catalysts that K₂O dispersed on the surface of the carrier. The monoclinic zirconia phase decreased when the content of La increased.

Keywords

Raman spectra; X-ray diffraction; calcination; catalysis; catalysts; lanthanum compounds; organic compounds; pH; potassium compounds; zirconium compounds; 2-ethyl hexanol; K₂O-ZrO₂; K₂O-ZrO₂-La₂O₃; La content; Raman measurement; XRD measurement; calcination temperature; carrier surface; catalyst activity; catalyst basicity; di-2-ethylhexyl carbonate; dimethyl carbonate; impregnation method; monoclinic zirconia phase; temperature 773 K; temperature 873 K; temperature 973 K; tetragonal zirconia phase; Chemistry; Educational institutions; Mesoporous materials; Petrochemicals; Production; Solids; X-ray scattering; activity; catalysts; di-2-ethylhexyl carbonate;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988581

Filename

5988581