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首页> 外文期刊>Journal of industrial and engineering chemistry >Extraction and separation of Pt(IV)/Rh(III) from acidic chloride solutions using Aliquat 336
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Extraction and separation of Pt(IV)/Rh(III) from acidic chloride solutions using Aliquat 336

机译：使用Aliquat 336从酸性氯化物溶液中萃取和分离Pt（IV）/ Rh（III）

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Extraction and separation of Pt(IV)/Rh(III) from chloride solutions using Aliquat 336 (Quaternary ammonium salt made by the methylation of mixed tri octyl/decyl amine) diluted in kerosene as an extractant/synergist alone and mixed with organophosphorous extractants as synergists/extractants were carried out from an aqueous feed containing 0.0005 mol L~(-1) Pt(IV)/Rh(lII).Variation of hydrochloric acid concentration of aqueous phase from 0.005 to 10.0 mol L~(-1) increased the percentage extraction of platinum up to 5.0 mol L~(-1) there after it decreases. Whereas in the case of rhodium, from 0.005 to 1.0 mol L~(-1) acid range the percentage extraction was decreased from 1.0 to 10.0 mol L~(-1) acid range is favorable for extraction. Platinum(IV)/rhodium(III) separation factor of 279.2 was obtained at 1.0mol L~(-1) HC1 concentration with 0.005 mol L~(-1) Aliquat 336 and separation factor of 612.3 was obtained at 3.0 mol L~(-1) HC1 concentration with 0.01 mol L~(-1) Aliquat 336. The present study optimized the various experimental parameters like phase contact time, effect of extractant, salts, temperature, loading capacity of extractant, stripping studies with various mineral acids/bases, recycling and reusing capacity of extractant up to ten cycles.
机译：使用单独稀释在煤油中的Aliquat 336（由混合的三辛基/癸胺的甲基化反应制得的季铵盐）作为萃取剂/增效剂，并与有机磷萃取剂混合，从氯化物溶液中萃取和分离Pt（IV）/ Rh（III）从含有0.0005 mol L〜（-1）Pt（IV）/ Rh（lII）的水性进料中进行增效剂/萃取剂的作用。水相盐酸浓度从0.005到10.0 mol L〜（-1）的增加铂含量降低至5.0 mol L〜（-1）时，铂的萃取百分率降低。而在铑的情况下，从0.005至1.0mol L〜（-1）的酸范围，萃取百分比从1.0至10.0mol L〜（-1）的酸范围降低对于萃取是有利的。在1.0mol L〜（-1）HCl浓度和0.005 mol L〜（-1）Aliquat 336下获得的铂（IV）/铑（III）分离系数为279.2，在3.0 mol L〜（-1）下获得的分离系数为612.3。 -1）HCl浓度为0.01 mol L〜（-1）Aliquat336。本研究优化了各种实验参数，例如相接触时间，萃取剂的作用，盐，温度，萃取剂的负载量，使用各种无机酸的汽提研究/提取物的碱，回收和再利用能力最多十个循环。

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