Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10390038 | Separation and Purification Technology | 2005 | 6 Pages |
Abstract
Three types of inorganic ion exchangers based on zirconium hydrophosphate were synthesised using the following methods: (I) phosphatising of dried zirconium hydroxide gel; (II) phosphatising of makeup zirconium hydroxide gel; (III) mixing together of ZrOCl2 and H3PO4 solutions. The influence of synthesis conditions on exchange and kinetic properties of ion exchangers were analysed. It was found that the maximal molar P:Zr ratio in ion exchanger can be reached using method (II). Copper ion mobility in ion exchangers increases with increasing P:Zr ratio. The effective diffusion coefficients of Cu2+, which were obtained by kinetic methods at pH 2.5 reaches 1.8Â ÃÂ 10â13 to 7.7Â ÃÂ 10â13Â m2Â sâ1.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Yu.S. Dzyazko, L.M. Rozhdestvenska, A.V. Palchik, F. Lapicque,