Shengfan Zhou, Bianfang Chen
Vanadium was leached from roasted stone coal by NaOH solution, and the effect of leaching temperature, leaching time, addition of NaOH, liquid to solid ratio, the grinding fineness of stone coal, and stirring speed on the vanadium leaching rate was studied. The kinetics analysis for the process is presented by the shrinking core model. The results show that the vanadium leaching ratio of roasted stone coal can be beyond 75% at the 6% NaOH addition, leaching temperature of 95°C, leaching time of 7h, liquid to solid ratio of 1.2mL/g, and grinding fineness of 0.111mm. The leaching process is controlled by interfacial reaction kinetics and the apparent activation energy was 59.36kJ/mol.
@article{a5293d7a-66e1-454c-a426-2bfbaf7fc389,
title={kinetics of extracting vanadium from stonecoal by alkali leaching},
author={Shengfan Zhou and Bianfang Chen},
year={2016},
language={en}
}TY - JOUR TI - kinetics of extracting vanadium from stonecoal by alkali leaching AU - Shengfan Zhou AU - Bianfang Chen PY - 2016 LA - en ER -
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