Pilot-scale extraction of zinc from the spent catalyst of vinyl acetate synthesis by microwave irradiation

2008 ◽  
Vol 92 (1-2) ◽  
pp. 79-85 ◽  
Author(s):  
Wei Li ◽  
Jinghui Peng ◽  
Libo Zhang ◽  
Zebiao Zhang ◽  
Lei Li ◽  
...  
2012 ◽  
Vol 518-523 ◽  
pp. 3483-3487
Author(s):  
Wen Wen Qu ◽  
Wen Jin ◽  
Jin Hui Peng ◽  
Shu Yang

ZnO/AC composite was prepared from spent catalyst of vinyl acetate synthesis by using conventional thermal treatment under CO2 atmosphere. The final composite was obtained with the operating conditions of activation temperature of 950°C, activation time of 120min and the CO2 flow rate of 600ml/min. The structure and surface properties of the ZnO/AC composite were observed and characterized by scanning electron microscope (SEM-EDX), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR) and the UV diffuse reflectance spectra. It was found that the zinc acetate present in the spent catalyst is transformed to zinc oxide (ZnO) after thermal treatment. ZnO particles were well adhered and uniformly distributed onto the carbon surface, forming ZnO/AC composite. The thermal treatment of the spent catalyst gives rise to a material with excellent adsorptive and photocatalytic properties.


2014 ◽  
Vol 92 (7) ◽  
pp. 1249-1256 ◽  
Author(s):  
Xinhui Duan ◽  
Zebiao Zhang ◽  
C. Srinivasakannan ◽  
Fei Wang ◽  
Jinsheng Liang

ACS Catalysis ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 1841-1857
Author(s):  
Zhaoru Zha ◽  
Prashant Deshlahra

2009 ◽  
Vol 113 (43) ◽  
pp. 11758-11762 ◽  
Author(s):  
José J. Plata ◽  
Mónica García-Mota ◽  
Ataualpa A. C. Braga ◽  
Núria López ◽  
Feliu Maseras

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