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Anionic absorbents, process for their preparation and their use in removing cationic agents and heavy-metal ions from aqueous solutions
Anionic absorbents, process for their preparation and their use in removing cationic agents and heavy-metal ions from aqueous solutions
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机译:阴离子吸收剂,其制备方法及其在从水溶液中去除阳离子试剂和重金属离子中的用途
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摘要
An anionic adsorbent which has been prepared by reacting (a) a monomeric compound which contains at least one anionic group and at least one amide group, especially a carboxamide group, which can be methylolated, with (b) an aminoplast precondensate which is free from salt-forming anionic groups. The novel adsorbent is particularly suitable for removing cationic substances, such as cationic dyes, and a heavy metal ions from aqueous solutions, especially from effluents.
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