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自60年代以来,铂族元素萃取化学的发展一直很快,国内外不少学者曾广泛研究了含硫萃取剂(如硫醇、硫醚、亚矾等)、含磷萃取剂(如烷基氧磷、磷酸酯、烷基硫磷、烷基硒磷等)和含氧萃取剂(如醚、醇、酯、酮等)对钯(Ⅱ)的萃取,含氮类萃取剂萃取钯的研究虽也有不少报道,但多限于胺类萃取剂,而且多数研究主要使用于钯的萃取比色法测定。有关羟肟类萃取剂萃取钯的系统研究尚不多见,而羟肟类萃取剂价格低廉,对钯的萃取有较高的分配系数,因此研究羟肟类萃取剂萃取钯的机理和反应动力学对于
Since the 1960s, the development of platinum group element extraction chemistry has been rapid. Many scholars at home and abroad have studied sulfur-containing extractants (such as mercaptans, thioethers, alum, etc.), phosphorus-containing extractants (such as alkyl (Ⅱ), Oxygen Phosphorus, Phosphate, Alkylthion, Alkyl Selenium Phosphorus, etc.) and Oxygen-containing Extractants (such as ethers, alcohols, esters, ketones, etc.) Although there are many reports, but mostly limited to amine extractant, and most of the research is mainly used for palladium colorimetric determination. However, the research on the extraction of palladium by the hydroxyoxime extractants is rare, but the price of hydroxyoxime extractants is low and the partition coefficient of palladium is relatively high. Therefore, the mechanism of the extraction of palladium by hydroxyoxime extractants and the reaction kinetics Learn to