Leaching behavior and kinetics of vanadium extraction from vanadium-bearing steel slag 期刊名称： Metallurgical Rearch & Technology囊肿是什么病
作者： Minglei Gao,Xiangxin Xue,Lanjie Li,He Yang,Donghui Chen
作者机构： 1School of Metallurgy, Northeastern University, Shenyang,
主动控制Liaoning110004, PR China,2Institute of Vanadium Titanium Technology, HBIS Group ChengSteel, Chengde, Hebei067102, PR China
豆浆英文
年份： 2019年
三年级作文过春节期号： 第4期自然堂粉底液>比喻句摘抄
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关键词： sodium hydroxide;kinetics;vanadium;extraction;vanadium-bearing steel slag
摘要：The vanadium-bearing steel slag as solid waste is also one of valuable vanadium-containing resource. Recovering vanadium from the refractory steel slag is a great challenge in the world. A leachi
ng process study using high concentration sodium hydroxide solution was propod in this laboratory work. The effects of sodium hydroxide concentration, particle size, leaching temperature and the ratio of alkali to slag on the rate of vanadium leaching were determined and the leaching kinetics was prented. It indicates that the leaching rate is highly nsitive to the sodium hydroxide concentration and leaching temperature and increas with increasing temperature and sodium hydroxide concentration. By studying the reaction mechanisms, it was found that the dicalcium silicate, tricalcium silicate and calcium ferrited which
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