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    • 8. 发明授权
    • Cross-linked polyaminocarboxylates for the removal of metal ions from aqueous solutions
    • 用于从水溶液中除去金属离子的交联聚氨基羧酸盐
    • US08895633B2
    • 2014-11-25
    • US13784750
    • 2013-03-04
    • King Fahd University of Petroleum and Minerals
    • Othman Charles Sadeq Othman Al HamouzShaikh Asrof AliNouri Mohammed Hassan
    • C08F226/04C08F226/06C08F26/06
    • C08F26/06
    • The cross-linked polyaminocarboxylates for the removal of metal ions from aqueous solutions of the present invention are cross-linked anionic polyelectrolytes CAPE 6 and CAPE 9, containing pH-responsive amino acid residues. The cross-linked anionic polyelectrolytes have been synthesized via cycloco-polymerization and ter-polymerization of a diallylammonioethanoate monomer (90 mol %) and a cross-linker, 1,1,4,4-tetraallylpiperazinium dichloride (10 mol %) in the absence of SO2 (CAPE 6) and in the presence of SO2 (CAPE 9), respectively. For the sorbents CAPE 6 and CAPE 9, the efficiency of Cu2+ removal at an initial metal concentration of 200 ppb was found to be 77.5% and 99.4%, respectively. Treatment of real wastewater samples spiked with Cu2+ ions showed the excellent ability of the cross-linked anionic polyelectrolytes to adsorb metal ions.
    • 用于从本发明的水溶液中除去金属离子的交联聚氨基羧酸盐是含有pH响应性氨基酸残基的交联阴离子聚电解质CAPE 6和CAPE 9。 交联的阴离子聚电解质是通过二烯丙基氨基乙酸酯单体(90mol%)和交联剂1,1,4,4-四烯丙基哌嗪二氯化物(10mol%)在不存在的情况下的环共聚合和三元共聚合成的 的SO2(CAPE 6)和SO 2(CAPE 9)的存在下。 对于吸附剂CAPE 6和CAPE 9,初始金属浓度为200 ppb时Cu2 +去除效率分别为77.5%和99.4%。 处理掺有Cu2 +离子的真实废水样品显示出交联阴离子聚电解质吸附金属离子的优异能力。