论文部分内容阅读
本文研究了胺类与中性给体或受体试剂组合,在 V、W、Mo、Re 萃取及分离中出现的“协同”与“反协同”效应,讨论了混合溶剂的萃取行为与萃取历程的关系。中性给体试剂对低浓度胺类从酸性介质中萃钒的协同作用主要是提高了胺-钒萃合物在脂肪族碳氢化合物中的溶解度;中性给体试剂对伯胺从碱性介质中萃铼的协萃作用主要是它的给体基团与高铼酸间的氢键缔合作用;含有活性氢原子有机试剂如醇类及氯仿对叔胺溶剂化萃钨的协同作用主要是为叔胺提供了活性氢,增强了萃合物的稳定性。
In this paper, we studied the “synergistic” and “anti-synergistic” effects of the combination of amines with neutral donor or acceptor reagents in the extraction and separation of V, W, Mo and Re. The extraction behavior and extraction process of the mixed solvents Relationship. The synergistic effect of neutral donor reagents on the extraction of vanadium from acidic media at low concentrations of amines mainly increases the solubility of amine-vanadium extracts in aliphatic hydrocarbons; The synergistic effect of extraction of rhenium in medium is mainly that of its donor group and perrhenic acid. The synergistic effect of organic reagents containing active hydrogen atoms such as alcohols and chloroform on the solvent extraction of tungsten It provides the tertiary amine with active hydrogen and enhances the stability of the extract.