笼形聚偕胺肟树脂的研究─—卤素及其化合物在树脂上的吸附  

STUDIES ON "CAGE" POLYAMIDOXIME ADSORBENTS──FOR HALOGENS, HALIDES AND HALITES UPTAKE

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,广州510650

出　　处：《离子交换与吸附》1998年第2期122-128,共7页Ion Exchange and Adsorption

基　　金：广东省自然科学基金

摘　　要：考查了碱处理笼形聚偕胺肟树脂（BCAO）和乙酸、硝酸或盐酸处理的笼形聚偕胺肟树脂（HOAC／ACAO、HNO。／ACAO、HCI／ACAO）对卤化物、卤酸盐和卤素的吸附行为。发现BCAO和HOAC／ACAO不吸附卤化物和卤酸盐；HNO3/ACAO和HCl/ACAO对两类化合物则表现出不同的吸附能力。BCAO和ACAO均吸附溴和碘，并符合Freundlich和Langmuir等温吸附方程。研究了溴在BCAO上的吸附动力学，讨论了吸附机理。Halogens, handes, and halites adsorbed by 'cage' polyamidoxime adsorbents treated with sodium hydroxide(BCAO) and acetic acid, nitric acid or hydrochloric acid (HOAc/ACAO, HNO,/ACAO and HCl/ACAO) were investigated. The results show that the BCAO and HOAc/ACAO do not adsorb the handes and halites in aqueous solution, but the adsorptivity of HNO3,/ACAO and HCl/ACAO for handes and halttes differs from each other. All the adsorbents adsorb bromine and iodine in accordance with the Freundlich and Langmuir adsorption isotherm.The adsorption kinetics was performed and the adsorption mechanism was discussed.

关 键 词：BCAO 溴 碘 吸附剂 笼形 聚偕胺肟树脂 

分 类 号：TQ124.61[化学工程—无机化工] TQ124.51