笼形聚偕胺肟树脂的研究──酸处理树脂吸附H_2PdCl_4  

Studies on the "cage" polyamidoxime adsorbents H_2PdCl_4 adsorbed by acid-treated resins

作　　者：吴锦远[1] 杨超雄[1] 

机构地区：[1]中国科学院广州化学研究所

出　　处：《广州化学》1996年第3期15-21,共7页Guangzhou Chemistry

基　　金：广东省自然科学基金

摘　　要：考查了无机酸、羧酸和酚类化合物处理的笼形聚偕胺肟树脂吸附酸性溶液中H_2PdCl_4的能力，其中H_3BO_3/ACAO、HSCH_2CO_2H/ACAO和p－NH_2C_6H_4H/ACAO树脂对H_2PdCl_4的吸附容量分别是2．023、2．368和2．083mmol/g-R或215、252和222mgPd／g－R。优于相同条件下的碱处理树脂（BCAO吸附容量为1．828mmol/g-R）。研究了吸附动力学，讨论了吸附机理。The adsorptivity of cage polyamidoxime resins treated with mineral acids(HX/ACAO), carboxylic acids (RCOOH/ACAO ) and phenols (Ph/ACAO ) forH2PdCl4 uptade was investigated. The adsorption capacities of H3BO3/ACAO,HSCH2 COOH/ACAO and p-NH2C6H4OH/ACAO for H2PdCl4 are 2. 023, 2. 368 and2. 083 mmol/gR, respectively, those are all higher than that of alkali-treated resin(1. 828 mmol/gR) at the same conditions.The kinetics of adsorption was determined and the mechanism of adsorption wasdis cussed.

关 键 词：笼形树脂 聚偕胺肟 氯钯酸 酸处理 吸附作用 

分 类 号：O633.4[理学—高分子化学] O614.823[理学—化学]