Study on the mechanism for ammonium chloride extraction of negative component calcium from vanadium-bearing steel slag
DOI:
https://doi.org/10.17159/Abstract
考虑到含钒钢渣的钙含量高和从炉渣中提取钒的成本高，将氯化铵利用预处理程序来提取含钒钢渣。并且，还从热力学和动力学方面研究了萃取过程的机理。当氯化铵浓度为20％，萃取温度为363K，额定为-0.074 + 0.048mm，搅拌速度为350 RPM，萃取时间为5h时，萃取效果最佳，钙组分的萃取率可达62.4％。。 。热力学研究和xrd分析表明，在氯化铵提取钒钢渣过程中，氯化铵主要与钢渣中的硅酸钙发生反应，钙被滤出后，钢渣形成了钒酸盐矿物的新相，。 .......这表明，提取整个工艺主要受低温表面化学反应控制。温度升高后，通过固相膜扩散控制萃取过程。
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