دانلود مقاله SYNTHESIS OF A NOVEL ZEOTYPE ION EXCHANGER: zirconium 4-[N,N-diphosphonomethyl)benzoicacid],Zr[(O3PCH2)2NC6H4CO2H].nH2O AND INVESTIGATING IT’S ION EXCHANGE PROPERTIES
سال انتشار: ۱۳۸۷
محل انتشار: همایش بین المللی ژئولیت ایران
تعداد صفحات: ۷
Hooman Yaghoob Nejad – Department of Analytical Chemistry, University of Isfahan 81746-73441, Isfahan, Iran.
Hossein Faghihian – Department of Analytical Chemistry, University of Isfahan 81746-73441, Isfahan, Iran.
recently, they have attracted much interests in chemical researches; This was mainly due to their ion
exchange properties. Zirconium phosphate have two basic structures which are denoted by α- and γ-
zirconium phosphate. Both of these structures develops zeolite-like cavities in which the act of ion exchange
is possible. A related modified category of α-zirconium phosphate, are zirconium phosphonates, with general
formula of Zr(O3PR)2 in which R represent an organic group. In these materials, with correct choice of
organic moiety different chemical and stereo chemical behaviors could be expected. In this paper the
sequences of synthesis of a new modified structure of zirconium phosphonates with the formula of
Zr[(O3PCH2)2NC6H4CO2H], zirconium [N,N-di(phosphonomethyl)benzoic acid] is introduced. In this
structure the organic moiety is capable of coordination of metallic ions, and hence will be investigated for
ion exchange separations from kinetic and thermodynamic points of view.