LAMELLAR INORGANIC ION-EXCHANGERS. BEHAVIOUR OF a-TITANIUM PHOSPHATE IN THE H+/Li+ION-EXCHANGE
- 1 April 1984
- journal article
- research article
- Published by Taylor & Francis in Solvent Extraction and Ion Exchange
- Vol. 2 (2) , 275-288
- https://doi.org/10.1080/07366298408918448
Abstract
The H+/Li+ ion-exchange in α-titanium phosphate at 25° C was studied and the exchange isotherm obtained. The process occurs with partial decomposition of the exchanger through hydrolysis. X-ray diffraction patterns of the conversion solids heated at 310°C, suggest the existence of two crystalline phases differing from the initial one, TiHLi (PO4)2 (d=6.8 Å)and Ti(LiPO4)2 (d=7.6 Å). Distribution curves of the solid phases with the characteristic shape of two consecutive chemical reactions were found. The existence of a half-exchanged phase in the Li-conversion allows the behaviour of this material to be considered to follow the same pattern as the behaviour in the H+/M+ ion exchange (M=Na,K)Keywords
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