The Contrast Study of Microwave Heating and Traditional Heating Leaching Vanadium from Stone Coal with Sulfuric Acid Solution

2013 ◽  
Vol 774-776 ◽  
pp. 660-663
Author(s):  
Hong Zhou Ma ◽  
Yao Ning Wang ◽  
Xin Zhe Lan

The aim of this paper is to contrast the effect of the microwave heating and traditional heating leaching vanadium from stone coal with sulfuric acid solution, contrast the leaching rate of vanadium, kinetics of leaching vanadium and the phase change s of slag. The experiment results show that the leaching rate and leaching velocity of vanadium with microwave heating was higher greatly than traditional heating, the kinetics of leaching vanadium with two heating methods was similar and accords with unreacted core contraction model with have solid product layer model, the illite in the stone coal was decomposed with microwave heating, but the traditional heating could not decomposed.

2012 ◽  
Vol 56 ◽  
pp. 58-64 ◽  
Author(s):  
Tianhe Wang ◽  
Ze Liu ◽  
Weigang Wang ◽  
Maofa Ge

1980 ◽  
Vol 35 (3) ◽  
pp. 329-331 ◽  
Author(s):  
H.-D. Försterling ◽  
H. Lamberz ◽  
H. Schreiber

Abstract The reaction between Ce3+ and bromate was studied in sulfuric acid solution using a dual wavelength spectrometer. From the spectral dependence of the absorbance in the region from 450 to 600 nm it is concluded that BrO2 is an intermediate of the reaction. The kinetics of formation and decay of BrO2 is compared to theoretical models.


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