当前位置: X-MOL 学术Sep. Purif. Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Separation of Pt(IV), Pd(II), Ru(III) and Rh(III) from model chloride solutions by liquid-liquid extraction with phosphonium ionic liquids
Separation and Purification Technology ( IF 8.6 ) Pub Date : 2018-11-30 , DOI: 10.1016/j.seppur.2018.11.091
Martyna Rzelewska-Piekut , Magdalena Regel-Rosocka

The recovery of metals from waste is profitable not only from an economic but also from an ecological point of view. The natural resources of metals (especially platinum group metals – PGM) are limited, while the amount of waste containing the desired metals is still growing. The purpose of the work is the use of quaternary phosphonium salts, i.e. Cyphos IL 101 (trihexyl(tetradecyl)phosphonium chloride), Cyphos IL 102 (trihexyl(tetradecyl)phosphonium bromide) and Cyphos IL 104 (trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate), for the separation of palladium(II), platinum(IV), rhodium(III) and ruthenium(III) from their multi-component model mixtures of composition based on real solutions after leaching of PGM-containing wastes (e.g. automobile catalytic converters). Though, Pd(II) could not be separated from Pt(IV) by one-stage extraction, separation of Pd(II) from Pt(IV) was possible by stripping with 0.1 M thiourea in 0.5 M HCl. The extraction of Rh(III) from the four-component solution practically did not occur (Rh(III) stayed in raffinate), therefore Pt(IV) and Pd(II) could be selectively separated from Rh(III). As a result of the work, a separation procedure of successful separatation of Pd(II), Pt(IV), Ru(III) Rh(III) from four-component solutions has been developed based on two stages of extraction with ionic liquid solution (trihexyl(tetradecyl)phosphonium chloride) and two stages of stripping.



中文翻译:

用phospho离子液体液-液萃取从模型氯化物溶液中分离Pt(IV),Pd(II),Ru(III)和Rh(III)

从废物中回收金属不仅从经济角度而且从生态角度来看都是有利的。金属(特别是铂族金属– PGM)的自然资源有限,而含有所需金属的废物数量仍在增长。工作的目的是使用季Cy盐,即Cyphos IL 101(三己基(十四烷基))氯化物),Cyphos IL 102(三己基(十四烷基)溴化phosph)和Cyphos IL 104(三己基(十四烷基)phosph双(2) (4,4-三甲基戊基)次膦酸酯),用于从钯溶液浸出后,根据真实溶液从组成的多组分模型混合物中分离钯(II),铂(IV),铑(III)和钌(III)含废物(例如汽车催化转化器)。尽管,Pd(II)不能通过一步萃取与Pt(IV)分离,可以通过在0.5 M HCl中用0.1 M硫脲进行汽提来从Pt(IV)分离Pd(II)。从四组分溶液中提取Rh(III)实际上没有发生(Rh(III)残留在萃余液中),因此Pt(IV)和Pd(II)可以与Rh(III)选择性分离。作为工作的结果,基于用离子液体溶液萃取的两个阶段,开发了从四组分溶液中成功分离出钯(II),铂(IV),钌(III),铑(III)的分离程序。 (三己基(十四烷基)氯化chloride)和两个汽提阶段。从四组分溶液中提取Rh(III)实际上没有发生(Rh(III)残留在萃余液中),因此Pt(IV)和Pd(II)可以与Rh(III)选择性分离。作为工作的结果,基于用离子液体溶液萃取的两个阶段,开发了从四组分溶液中成功分离出钯(II),铂(IV),钌(III),铑(III)的分离程序。 (三己基(十四烷基)氯化chloride)和两个汽提阶段。从四组分溶液中提取Rh(III)实际上没有发生(Rh(III)残留在萃余液中),因此Pt(IV)和Pd(II)可以与Rh(III)选择性分离。作为工作的结果,基于用离子液体溶液萃取的两个阶段,开发了从四组分溶液中成功分离出钯(II),铂(IV),钌(III),铑(III)的分离程序。 (三己基(十四烷基)氯化chloride)和两个汽提阶段。

更新日期:2018-11-30
down
wechat
bug