Diphonix(R) resin: A review of its properties and applications
Diphonix(R) resin: A review of its properties and applications
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DOI：
10.1080/01496399708003184
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发表时间：
1997-01-01
影响因子：
2.8
通讯作者：
Gula, MJ
中科院分区：
文献类型：
--
作者：
Chiarizia, R;Horwitz, EP;Gula, MJ
Diphonix（R）树脂伊萨一种新型的多功能螯合型离子交换树脂，它含有与苯乙烯基聚合物基体化学键合的偕位取代的二膦酸配体。Diphonix可以被认为是一种双重机制聚合物，具有磺酸阳离子交换基团，允许离子快速进入聚合物网络，大多数是非特异性的，并且二膦酸基团负责对许多金属阳离子的特异性（识别）。Diphonix树脂对锕系元素具有非常强的亲和力，特别是在四价和六价氧化态下。因此，树脂具有潜在的应用在TRU和混合废物的处理和表征，并在开发新的程序，用于快速的锕系元素的预浓缩和分离环境样品。金属吸收的研究已扩展到碱土金属阳离子，过渡和后过渡金属物种，从中性或近中性溶液的金属吸附。并对树脂的动力学行为进行了详细的研究。鉴于上述应用的影响，最常见的基质成分（钠，钙，铝，铁，氢氟酸，硫酸，草酸和磷酸）上的摄取锕系元素离子已被测量。本文综述了Diphonix树脂性能研究的最重要成果，并对Diphonix树脂在混合废物处理、锕系元素分离、核电站和燃料处理厂放射性废物处理、铜电解液除铁等方面的应用进行了综述。
The recently developed Diphonix(R) resin isa new multifunctional chelating ion exchange resin containing geminally substituted diphosphonic acid ligands chemically bonded to a styrene-based polymeric matrix. Diphonix can be regarded as a dual mechanism polymer, with a sulfonic acid cation exchange group allowing for rapid access, mostly non-specific, of ions into the polymeric network, and the diphosphonic acid group responsible for specificity (recognition) for a number of metal cations. The Diphonix resin exhibits an extraordinarily strong affinity for actinides, especially in the tetra- and hexavalent oxidation states. Therefore the resin has potential for applications in TRU and mixed waste treatment and characterization, and in the development of new procedures for rapid actinide preconcentration and separation from environmental samples. Metal uptake studies have been extended to alkaline earth cations, to transition and post-transition metal species, and to metal sorption from neutral or near neutral solutions. Also the kinetic behavior of the resin has been investigated in detail. In view of the above applications the influence of the most commonly occurring matrix constituents (Na, Ca, Al, Fe, hydrofluoric, sulfuric, oxalic and phosphoric acids) on the uptake of actinide ions has been measured. This review paper summarizes the most important results obtained in the studies on the properties of the Diphonix resin and gives an overview of the applications already in existence or under development in the fields of mixed waste treatment, actinide separation procedures, treatment of radwaste from nuclear power and fuel processing plants, and removal of iron from copper electrowinning solutions.