摘要
研究了离子交换法以钼冶炼烟气淋洗液中回收铼的过程中硒的走向,并研究了硒对离子交换树脂吸附性能的影响。试验结果表明,在离子交换法吸附铼的过程中,淋洗液中的SeO32-也被同时被吸附到树脂上,铼先于硒达到饱和吸附;解吸附铼的过程中,大部分的硒也被解吸附,并富集210倍;解吸液沉淀物XRD分析表明,解吸液中被富集的硒,部分会被还原为单质。解吸液中的胶状硒黏附在离子交换树脂上后,导致树脂变为红棕色,并影响其对铼的吸附性能。采用脱硒药剂A可将树脂上的硒脱除,脱硒后树脂对铼的吸附性能得到一定的恢复。
In this article the behavior characteristics of selenium in the process of rhenium recovery by ion exchange and the effect of selenium on the adsorption properties of ion exchange resin were discussed.Results showed that in the adsorption process of rhenium,most of selenium,dissolving in the spraying water,was adsorbed by ion exchange resin.The saturated adsorption of rhenium was apt to achieve than selenium.In the desorption process of rhenium,most of selenium was eluted and enriched as SeO32-.XRD analysis of deposit in desorption solution showed that part of SeO32-was reduced to elemental selenium soon.As a result of adhering to resin by the colloidal elemental selenium,the color of resin changed to brown red and the adsorption performance of resin decreased.The elemental selenium adhering to resin could be eluted by reagent A and the adsorption performance of resin,which had been treated by reagent A,gained a certain amount of recovery.
作者
刘红召
符新科
王威
马力言
张博
曹耀华
柳林
王洪亮
LIU Hongzhao;FU Xinke;WANG Wei;MA Liyan;ZHANG Bo;CAO Yaohua;LIU Lin;WANG Hongliang(Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS, Zhengzhou 450006, China;Key Laboratory for Polymetallic Ores' Evaluation and Utilization, MNR, Zhengzhou 450006, China;Key Laboratory of Comprehensive Utilization of Gold Resource in Henan Province, Zhengzhou 450006, China;Jinduicheng Molybdenum Co.,ltd, Xi'an 710077, China)
出处
《矿产保护与利用》
2020年第5期70-75,共6页
Conservation and Utilization of Mineral Resources
基金
中国地质调查局地质调查项目(DD20201174)
河南省科技攻关项目(192102310201)。
关键词
铼
离子交换
淋洗液
硒
吸附
解吸附
rhenium
ion exchange
spraying water
selenium
adsorption
desorption
作者简介
刘红召(1980-),男,河南舞钢人,博士,高级工程师,研究方向:资源综合利用,E-mail:hongzhao99@126.com。
