【作者】 陈肖虎； 陈颖； 薛安； 王克功；

【Author】 CHEN-Xiaohu,CHEN Ying,XUE An,WANG Ke-gong (College of Materials Science and Metallurgical Engineering,Guiz hou University, Guiyang 550003,China)

【机构】 贵州大学材料科学与冶金工程学院；

【摘要】 采用沉淀法对从拜耳法铝酸钠溶液中分离钒进行了研究,着重考察了沉淀阶段沉淀剂用量、沉淀反应时间、沉淀反应温度对V₂O₅回收率的影响。结果显示:选用蒸发母液为原料,氧化钙为沉淀剂,氧化钙过量系数为1000,反应时间1小时,反应温度90℃时,V₂O₅总回收率达45.4%。更多还原

【Abstract】 The vanadium separation form sodium aluminate solution in Bayer process by precipitation method is investigated,focusing on the effect of various factors of recovery ratio of vanadium pentoxide in precipitiation process(e.g.precipitatometer dosage,precipitation reaction time,precipitation reactiom temperature).The test results show that chosing evaporated mutterlauge as raw material,calcium oxside as precipitatometer,with excess coefficient of calcium oxside 1000,reaction time 1 h,reactiom temperature 90℃,the totoal percent recovery of vanadium pentoxide is up to 45.34%.更多还原