Leaching vanadium by high concentration sulfuric acid from stone coal

来源期刊:中国有色金属学报(英文版)2010年增刊第1期

论文作者:陈向阳 兰新哲 张秋利 马红周 周军

文章页码:123 - 126

Key words:stone coal; vanadium; leaching; sulfate solution

Abstract: An effectively new technology of extracting vanadium from stone coals by high concentration sulfuric acid was researched. The effect of the concentration of sulfuric acid, leaching temperature, leaching time and helper leaching agent on the extraction of vanadium was explored. The results show that the optimal conditions of extraction are as follows: the concentration of sulfuric acid is 6 mol/L, the ratio of liquid to solid is 3:1; the temperature is 90 ℃; the leaching time is 3-5 h, the diameter of the ore particle is less than 180 μm, and the concentration of helper leaching agent R is 6%. Under these conditions, the extraction of vanadium can reach 95.86%.

基金信息:“13115” Science and Technique Innovation Program of Shaanxi Province, China
Science Fund for Young Scholars of Xi’an University of Architecture and Technology, China

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