离子交换一步法制高纯仲钨酸铵的扩大试验
来源期刊：中国有色金属学报1996年第3期
论文作者：肖连生 龚柏凡 黄芍英 张贵清
文章页码：57 - 59
关键词：离子交换 膜电解 钨 钼 仲钨酸铵
Key words：electromembrane tungsten molybdenum ion exchange
摘 要：将含1.348/L Mo， 89g/L WO3， 26.109g/L CO32-的Na2WO4原料溶液，用膜电解回收游离碱后，转变钼为硫代钼酸盐，调整溶液浓度，并让其通过三根d 200mm及一根d 300mm的串联的交换柱，Mo、P、As Si在一列交换柱的不同部位被除去，而得到纯(NH4)2WO4溶液，最终产品达到GB10116-88的APT-0级标准。
Abstract: The Na2WO4 solution containing Mo 1.34g/L, WO389g/L, CO32- 26.19 g/L was processed in the expanding test.MoO2-4 in aqueous feed was converted into MoS42- after recovering excess alkali with electromembrane.Then the input concentration of feed was regulated, and the feed passed through a series of columns which consist of three d200 mm and oned300 mm exchange columns.Mo,P,As,Si were removed in different position of columns. The purified (NH4)2WO4 solution was obtained and the quality of products reached the grade of APT-0(GB10116-88,P·R·C)
