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四氯化钛精致尾渣制备钒酸铁的研究
Authors
张洋
瞿金为
马娜
Publication date
1 January 2018
Publisher
Abstract
对四氯化钛精致尾渣进行酸浸,考察液固比、盐酸用量、浸出温度、浸出时间对钒浸出率的影响,结果表明,在液固比2∶1、38%盐酸与水的体积比1.1∶1、浸出温度40℃、浸出时间30min的条件下,钒浸出率可以达到97.1%。酸浸液调节pH后,在沉钒温度40℃、酸浸液钒初始浓度小于6g/L、终点pH1.4~2.0、氧化剂用量为理论量的5~6倍的条件下,钒沉淀率达到95.4%,沉淀物550℃煅烧3h后可以得到钒酸铁。沉钒渣和废水中和渣满足GB18599—2001中一般工业固体废物永久堆放的要求
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Last time updated on 08/07/2019