Chromatography of inorganic ions on diethyl-(2-hydroxy-propyl)aminoethyl cellulose layers in hydrochloric acid and in HCl-ammonium chloride media

1991 ◽  
Vol 31 (1-2) ◽  
pp. 60-62 ◽  
Author(s):  
T. Shimizu ◽  
K. Hashimoto ◽  
K. Tsunoda
Keyword(s):  
Hydrochloric Acid ◽  
Ammonium Chloride ◽  
Inorganic Ions ◽  
Cellulose Layers

scholarly journals Studies of the Separation of Palladium(II) Microquantities from Macroquantities of Salts of other Elements on Selective Ion Exchangers

1996 ◽  
Vol 14 (1) ◽  
pp. 5-23 ◽  
Author(s):  
Zbigniew Hubicki ◽  
Halina Hubicka ◽  
Bozena Lodyga
Keyword(s):  
Hydrochloric Acid ◽  
Ion Exchange ◽  
Ammonium Chloride ◽  
High Resistance ◽  
Exchange Capacity ◽  
Frontal Analysis ◽  
Thiol Groups ◽  
Ion Exchangers ◽  
Ion Exchange Capacity ◽  
Mineral Acids

The applicability of selective ion exchangers for the removal of palladium(II) from solutions of copper(II), nickel(II), aluminium(III) salts, hydrochloric acid, a mixture of hydrochloric and nitric acids as well as a mixture of hydrochloric acid and ammonium chloride has been studied by frontal analysis. The best results were obtained in the purification of copper(II) and nickel(II) salts on Chelite S with functional thiol groups, Duolite ES-346 with functional amidoxime groups and Lewatit TP-214 with functional thiourea groups. A decrease of palladium(II) content below 5 × 10−5% was obtained in the process of purification of macroquantities of these salts. In addition, these ion exchangers possess a considerable ion-exchange capacity (e.g. 3.18 mequiv. Pd/g for Lewatit TP-214) and a high resistance to mineral acids.

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