Rhenium removal trapping agent and preparation method thereof

• Main Authors: WANG LEI, LI QINGCHUN, XIAO CHENG, CHEN ZHENYAN, XIONG YAOHUA, FANG DAWEI, MAN ANJING, SHAO JIANXIN, SUN PING, LIU RIQIANG, YAN QIANG, SUN JIANHUA, LI YAN, CAO MINQIANG, HONG BO
• Format: Patent
• Language: Chinese; English
• Published: 04.09.2020
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; ORGANIC CHEMISTRY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention provides a rhenium removal trapping agent and a preparation method thereof. The preparation method of the rhenium removal trapping agent comprises the following steps that firstly, a mixed solution of tertiary amine, ethyl alcohol and dichloromethane and hydrochloric acid are mixed to react, then evaporation is carried out, and a [R3NH][Cl] containing evaporation product is obtained;and secondly, the evaporation product and a proper amount of ethyl alcohol are mixed to obtain the rhenium removal trapping agent. The rhenium removal trapping agent prepared through the above methodis further provided. The rhenium removal trapping agent has the advantages of being simple in preparation, easy to produce on a large scale and high in wash-out efficiency, the wash-out rate reachesup to 98% or above, the product purity reaches up to 99.9%, and good industrial application value is achieved. 本发明提供了一种脱铼捕获剂及其制备方法。该脱铼捕获剂的制备方法包括以下步骤：步骤一：使叔胺、乙醇和二氯甲烷的混合溶液、盐酸混合反应，然后进行蒸发，得到含有[RNH][Cl]的蒸发产物；步骤二：将蒸发产物与适量乙醇混合，得到所述脱铼捕