以胺树脂为载体含羟基（巯基）的螯合树脂的合成及吸附性能

以胺树脂为载体含羟基（巯基）的螯合树脂的合成及吸附性能倪才华，徐羽梧（荆州师专化学系，江陵，４３４１００）（武汉大学化学系）关键词螯合树脂，吸附性能，巯基，羟基，贵金属螯合树脂用于贵金属的浓缩与回收工作一直引人注目．不少含硫氮的螯合树脂对于某些贵金属...     

主链含吡唑酮环的聚酰胺螯合树脂

主链含吡唑酮环的聚酰胺螯合树脂毕韵梅，何森泉（云南教育学院化学系，昆明６５０２２３）（云南大学化学系，昆明６５００９１）付昀（中国科学院昆明生态研究所，昆明６５０２２３）关键词聚酚胺，吡唑酮，选择性络合，螯合树脂吡唑酮类化合物是一类引人注目的酸性鳌合...     

二乙胺苯丙酮的吸附伏安行为的研究

二乙胺苯丙酮的吸附伏安行为的研究谭学才，张升辉（湖北民族学院化学系恩施４４５０００）李启隆（北京师范大学化学系北京１００８７５）关键词二乙胺苯丙酮，吸附伏安法，不可逆吸附波二乙胺苯丙酮的商品名叫丽姿片（Ａｎｆｅｒｐｒａｍｏｎ，简称ＡＮＦ），是一种治疗...     

银离子交换分子筛的一氧化氮吸附性能

银离子交换分子筛上一氧化氮的吸附性能张文祥贾明君于剑锋吴通好（吉林大学化学系，长春１３００２３）八寻秀典岩本正和（北海道大学触媒研究中心，日本札幌０６０）关键词银，离子交换，分子筛，一氧化氮，吸附态分类号Ｏ６４７／Ｘ５氮氧化合物（ＮＯｘ）是酸雨和空...     

离子交换剂在形态分析中的应用

本文简介了几种离子交换剂（包括阴、阳离子交换树脂、螯合树脂、吸附树脂、巯基棉和泡沫塑料等）在形态分析中的应用。     

螯合树脂研究Ⅱ.以聚醚为主链的氨基异丙巯基型螯合树脂的合成及其吸附性能

本文提出了由胺型螯合树脂与环硫丙烷反应合成巯基胺型螯合树脂的新方法。并用以聚醚为主链的环多乙烯多胺型螯合树脂与环硫丙烷反应合成了六个新的氨基异丙巯基型螯合树脂,这些树脂能吸附Ag~+、Hg~(2+)、Cu~(2+)、Zn~(2+)、Cd~(2+)等离子,对Ag~+、Hg~(2+)的吸附最佳。     

含硫弱酸性酚醛树脂对Ag+的吸附性能

含硫配位原子的螯合树脂对过渡金属离子尤其是贵金属离子具有良好的吸附性能[1]。螯合树脂的母体交联聚苯乙烯、聚甲基丙烯酸甲酯[2]具有疏水性,即使引入螯合基团其疏水性仍很强,对在水溶液中的吸附很不利。而含有酚醛骨架的螯合树脂具有亲水性[3]。本文以酚醛树脂为大分子骨架,通过化学反应连接上具有强配位原子硫的巯基羧酸,研究了该巯基弱酸性酚醛树脂对Ag+在各种条件下的吸附性能。1　实验部分1 1　仪器与试剂NicoletMAGNA550(SeriesⅡ)红外光谱仪,SHA C水浴恒温振荡器,3200原子吸收分光光度计,JSM 5600LV扫描电镜,Quest.le…     

大孔膦酸树脂吸附钴的性能及其机理

大孔膦酸树脂吸附钴的性能及其机理熊春华，莫建军（丽水师专化学系，丽水３２３０００）林峰（杭州大学化学系，杭州３１００２８）关键词胰酸树脂，钴，吸附大孔磷酸树脂的合成、结构、某些性能和应用已有报道［１，２］，但是在ＨＡｃ－ＮａＡｃ体系中吸附金属钻（Ⅱ）...     

伯胺N1923萃淋树脂吸萃钯的研究

伯胺Ｎ_（１９２３）萃淋树脂吸萃钯的研究程德平，夏式均（杭州大学化学系杭州３１０００８）关键词钯，萃淋树脂，吸附伯胺萃取剂Ｎ（１９２３）用以萃取金属离子有不少研究［１－３］，但以Ｎ（１９２３）萃淋树脂作固定相的萃取色层研究未见报道。本文研究了此树脂在?..     

螯合树脂研究——Ⅴ.巯基胺型螯合树脂的合成其吸附性能

本工作探索了一种合成巯基胺型螯合树脂的新方法.用环硫氯丙烷与多乙烯多胺作用只经一步反应,即可制得交联型巯基胺树脂,树脂中的配位原子氮和硫的含量较高,对贵金属离子金、银、钯具有良好的吸附性能.     

螯合树脂研究——Ⅷ.以聚硫醚为主链的氧杂多乙烯多胺型螯合树脂的合成及其吸附性能

由聚[2′-氯乙基-2,3-环硫丙基醚]和多乙烯声胺反应,合成了四种以聚硫醚为主链的氧杂多乙烯多胺型螯合树脂,它们对贵金属离子Au(Ⅲ)、Pd(Ⅱ)、Pt(Ⅳ)、Ag~+等具有优良的吸附性能。     

螯合树脂研究——ⅩⅥ.以壳聚糖为母体的含硫、氮螯合树脂的合成及其吸附性能

壳聚糖与环硫氯丙烷反应合成了一系列含S和N的交联型螫合树脂。这类树脂对贵金属离子如:金、银、钯、铂等具有优良的吸附性能。     

螯合树脂研究(ⅩⅢ)——以聚硫醚为主链的氨基吡啶树脂的合成及吸附性能

聚环硫氯丙烷与各种氨基吡啶在二乙烯三胺存在下反应,合成了3种主链为聚硫醚、侧链带有吡啶基氨基的新型螯合树脂。它们对贵金属具有优良的吸附性能和高的吸附选择性。并通过X射线光电子能谱初步探讨了树脂对金属离子的螯合作用。     

螯合树脂研究——ⅩⅥ.以壳聚糖为母体的含硫、氮螯合树脂的合成及其吸附性能

 壳聚糖与环硫氯丙烷反应合成了一系列含S和N的交联型螫合树脂。这类树脂对贵金属离子如:金、银、钯、铂等具有优良的吸附性能。     

SYNTHESES AND ADSORPTION PROPERTIES OF PHENOL-FORMALDEHYDE-TYPE CHELATING RESINS BEARING THE FUNCTIONAL GROUP OF TARTARIC ACID

Several kinds of novel chelating resins bearing the functional group of tartaric acid (TTA-FQ-12, TTA-FQ-23, and TTA-FQ-34) were synthesized by reacting epoxy maleic anhydride, which was prepared through the oxidization reaction of maleic anhydride by hydrogen peroxide, with phenol-formaldehyde resin containing polyamine (FQ resins series). The effects of such factors as reaction time, reaction temperature and pH value on the loading capacity of TTA in resins were investigated. The results showed that the optimum reaction conditions are as follows: time 9-12h; temperature 90-105℃;pH value 6-10. The loading capacities of TTA can reach 0.15, 0.14, and 0.11 mmol/g^-1 when the functional group of FQ resin was -OCH2CH2NHC2H4NH2, -O(CH2CH2NH)2C2H4NH2 and -O(CH2CH2NH)3C2H4NH2), respectively. The structures of resins were characterized by FTIR spectra. The primary study on the adsorption properties of the resins for metal ions showed that there are two kinds of adsorption mechanisms i.e. ion exchange and chelate in the adsorption process. TTA-FQ resins have much higher adsorption selectivity for Pb^2 and Zn^2 than for Cu^2 and Ni^2 . These resins can probably be used for separating Pb^2 or Zn^2 in the mixture of metal ions or for treating wastewater containing heavy metal ions.     

SYNTHESES OF POLYSTYRENE RESINS CONTAINING POLYETHER OLIGOMERS AND THEIR EXTRACTION FOR GOLD (Ⅲ)*

Three polystyrene resins containing polyether oligomers as extractants were synthesized andtheir extraction properties were studied. Gold (III) ion could be extracted rapidly by the resins(T_(1/2),相似文献   

一种有机酰腙类配体及其金属凝胶的结构及性能

设计合成了一种带有长链烷基和配位基团的新型有机配体2-吡啶甲醛-4'-十二烷氧基苯甲酰腙(简称L),并采用核磁(1H-NMR)、红外(FTIR)、电喷雾质谱(ESI-MS)和元素分析确认其结构.在乙醇和水的混合溶剂中,配体L可使溶剂凝胶化,并可与多种金属离子(Co(Ⅱ),Ni(Ⅱ),Zn(Ⅱ)和Cu(Ⅱ)作用,形成金属凝胶.采用扫描电镜分析表明,L自身形成的凝胶及金属凝胶的微观形貌均为相互搭接的纤维状结构.采用紫外光谱分析表明在乙醇溶液中L分子形成了聚集体.采用平板流变仪分析表明引入金属离子可提高凝胶的强度.进一步合成了L与Cu(Ⅱ)的配合物,通过对比配合物与金属凝胶的红外光谱和紫外光谱,证明金属凝胶中配体L与金属离子间形成了配位作用.     

Preparation of Amberlite XAD resins coated with dithiosemicarbazone compounds and preconcentration of some metal ions

The Amberlite XAD resins coated with dithiosemicarbazones were prepared and their collection behavior of metal ions from aqueous solution was investigated. Among the resins used, the reagent-loaded Amberlite XAD-7 was found to be superior for the collection of metal ions to other reagent-loaded resins used. The quantitative collection of mercury(II), palladium(II) and copper(II) was obtained from acidic medium, while cadmium(II) and lead(II) was obtained from neutral medium by the Amberlite XAD-7 resin coated with dimethylglyoxal bis(4-phenyl-3-thiosemicarbazone) (DMBS). These metal ions collected on the resin were easily eluted with a small volume of N,N-dimethylformamide as their DMBS chelates. This collection-elution method was applied to the determination of their metal ions by reversed-phase high performance liquid chromatography with a spectrophotometric detection.     

磁性功能化酚醛树脂的合成及对金属离子的吸附性能

磁性功能化酚醛树脂的合成及对金属离子的吸附性能;环氧酚醛树脂;螯合;金属离子;溶胀;吸附容量;吸附动力学     

Selective metal sorption on cross-linked poly(vinylpyridine) resins

The sorption behaviour of several metal ions on five kinds of poly(4- or 2-vinylpyridine) resins, cross-linked with divinylbenzene, and with different surface properties, are examined. All the resins proposed sorb some metal ions effectively in a similar manner by anion-exchange, while the sorption of metal ions by complex formation with the pyridine moiety is strongly affected by the surface properties of the resins. A macroreticular poly(4-vinylpyridine) resin shows high affinity for copper and nickel ions in acetate buffer. Sodium chloride and/or methanol added to the working solutions influence the sorption capacities for metal ions. This resin was applied to the separation of copper/cobalt and nickel/cobalt and the concentration of copper from sea-water by a column operation.