Synthesis and ion-exchange properties of crystalline titanium and zirconium phosphates

A. Nilchi; M. Ghanadi Maragheh; A. Khanchi; M. Farajzadeh; A. Aghaei

doi:10.1023/b:jrnc.0000034876.90837.fa

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 261: Issue 2

Synthesis and ion-exchange properties of crystalline titanium and zirconium phosphates

Authors:

A. Nilchi

A. Nilchi Atomic Energy Organization of Iran Jaber Ibn Hayan Research Laboratories P.O. Box 11365/8486 Tehran Iran

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M. Ghanadi Maragheh

M. Ghanadi Maragheh Atomic Energy Organization of Iran Jaber Ibn Hayan Research Laboratories P.O. Box 11365/8486 Tehran Iran

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A. Khanchi

A. Khanchi Atomic Energy Organization of Iran Jaber Ibn Hayan Research Laboratories P.O. Box 11365/8486 Tehran Iran

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M. Farajzadeh

M. Farajzadeh Atomic Energy Organization of Iran Jaber Ibn Hayan Research Laboratories P.O. Box 11365/8486 Tehran Iran

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, and

A. Aghaei

A. Aghaei Atomic Energy Organization of Iran Jaber Ibn Hayan Research Laboratories P.O. Box 11365/8486 Tehran Iran

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Pages:: 393–400

Online Publication Date:: 03 Nov 2004

Publication Date:: 17 Aug 2004

Article Category:: Research Article

DOI:: https://doi.org/10.1023/b:jrnc.0000034876.90837.fa

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Abstract

The preparation of novel types of inorganic ion-exchangers, titanium and zirconium phosphates and their ion-exchange properties towards strontium ions, are reported and discussed. Ti(HPO₄)₂·2H₂O is shown to be very stable to hydrolysis and to have high exchange capacity in strongly acid medium. In the case of zirconium phosphate, the titration curves with alkaline earth metal hydroxides are strongly affected by hydrolysis of the exchanger and precipitation of insoluble phosphate. The degree of conversion of the exchanger at which phosphate precipitation begins was found to be 80% for Sr²⁺. The comparison of Ti(HPO₄)₂·2H₂O with the corresponding zirconium phosphate dihydrated phase suggests that the former possesses a lattice structure different from that reported for the monohydrated exchanger.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)