SELECTIVITY OF RESINS WITH GUANIDYL GROUPS TOWARDS DICYANOAURATE ANIONS
作者:
Dorota Jermakowicz-Bartkowiak,
Wiesław Apostoluk,
AndrzejW. Trochimczuk,
BożenaN. Kolarz,
期刊:
Solvent Extraction and Ion Exchange
(Taylor Available online 1999)
卷期:
Volume 17,
issue 3
页码: 613-633
ISSN:0736-6299
年代: 1999
DOI:10.1080/07366299908934630
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Resins having two types of ligands: guanidine and aminoguanidine on copolymers of vinylbenzyl chloride (VBC)/ methyl methacrylate (MM)/ divinylbenzene (DVB) and on styrene (S)/DVB have been investigated in respect to their selectivity towards dicyanoaurate anions Resins coded CH and CP displayed high selectivity and sorption of gold from its diluted solution. They sorbed 10 - 11 mg of gold/g and dicyanoaurate distribution coefficient reached 1890 and 2290, respectively. Resins have the following selectivity order when sorption was carried out from solution of 5.08 mg Au/dm3: resin U-BIS Zn>Ag>Au>Cu; resin CP Au>Zn»Cu»Ag; resin CH Au>Zn=Ag»Cu. Resins have weak affinity towards iron complexes.
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