Synthesis and Ion Exchange Properties of Thermally Stable Titanium(IV) Vanadate: Separation of Sr2+ from Ca2+, Ba2+, and Mg2+

1972 ◽  
Vol 50 (13) ◽  
pp. 2071-2078 ◽  
Author(s):  
Mohsin Qureshi ◽  
K. G. Varshney ◽  
S. K. Kabiruddin
Keyword(s):  
Ion Exchange ◽  
Structural Changes ◽  
Exchange Capacity ◽  
Thermally Stable ◽  
Sodium Vanadate ◽  
Ion Exchange Capacity ◽  
Inorganic Ion Exchanger ◽  
Inorganic Ion ◽  
Separation Factors ◽  
Exchange Properties

A new, thermally stable, and highly strontium-specific inorganic ion exchanger, titanium(IV) vanadate, has been prepared by mixing 0.5 M solution of titanic chloride and sodium vanadate at pH 0–1. Its ion exchange capacity is 0.65 mequiv./g at 400 °C. Separation factors of Sr2+ with respect to Ba2+, Ca2+, and Mg2+ are 8, 11.8, and 33.3, respectively. Binary mixtures of Sr2+ with Ba2+, Ca2+, and Mg2+ have been separated. Calcium and magnesium are eluted with 0.001 M HNO3. Barium and strontium are eluted with 0.01 and 0.1 M HNO3, respectively. A new parameter ΔC/ΔT is proposed for the study of structural changes in inorganic ion exchangers.

Synthesis and Ion-exchange Properties of Tantalum Arsenate

1975 ◽  
Vol 53 (17) ◽  
pp. 2586-2590 ◽  
Author(s):  
J. P. Rawat ◽  
S. Qasim Mujtaba
Keyword(s):  
Ion Exchange ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Tantalum Pentoxide ◽  
Sodium Arsenate ◽  
Ion Exchange Capacity ◽  
Inorganic Ion Exchanger ◽  
Inorganic Ion ◽  
Analytical Importance ◽  
Exchange Properties

A new inorganic ion-exchanger, tantalum arsenate, has been prepared under varying conditions. The exchanger prepared by mixing 0.1 M tantalum pentoxide and 0.1 M sodium arsenate in the ratio of 1:4 at pH 0 has been studied in detail for its ion-exchange capacity, pH titrations, and Kd values. The material can be prepared reproducibly. Its analytical importance has been established by the following quantitative separations: Zr4+ from Tm3+, Zr4+ from Eu3+, Pr3+ from Eu3+, and Pr3+ from Tm3+.

Study of the Inorganic Ion Exchanger Li3Mn0.25Ti0.5O3

2012 ◽  
Vol 178-181 ◽  
pp. 471-474
Author(s):  
Jin He Jiang
Keyword(s):  
Ion Exchange ◽  
Spinel Structure ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Inverse Spinel ◽  
Ion Exchange Capacity ◽  
Inorganic Ion Exchanger ◽  
Inverse Spinel Structure ◽  
Inorganic Ion ◽  
Crystallization Method

Inorganic ion exchanger (Li3Mn0.25Ti0.5O3) with an inverse spinel structure was synthesized by solid state reaction crystallization method. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 9.2mmol/g for Li+.

The Synthesis and Ion-Exchange Property of Li+ Memorized Spinel Li2Mn0.75Ti0.25O3

2012 ◽  
Vol 554-556 ◽  
pp. 856-859
Author(s):  
Jin He Jiang
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Solid State Reaction ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Exchange Property ◽  
Ion Exchange Capacity ◽  
Inorganic Ion Exchanger ◽  
Inorganic Ion ◽  
Crystallization Method

Inorganic ion exchanger Li2Mn0.75Ti0.25O3 is synthesized. It was prepared by a solid state reaction crystallization method. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 7.4 mmol•g-1 for Li+. It had a memorial ion-sieve property for Li+.

scholarly journals Preparation, Characterization and Analytical Application of Tin (IV) Tungstoselenate - 1, 10 Phenanthroline

2021 ◽  
Vol 37 (4) ◽  
pp. 997-1001
Author(s):  
Esmat Laiq ◽  
Syed Ashfaq Nabi
Keyword(s):  
Ion Exchange ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Ion Exchange Capacity ◽  
Inorganic Ion Exchanger ◽  
Inorganic Ion ◽  
Final Sample ◽  
Kd Values ◽  
Exchange Material ◽  
Solvent Systems

Synthesis of a composite ion exchange material Tin (IV) tungstoselenate - 1, 10 phenanthroline has been achieved by mixing differentvolume ratios of the organic counterpart with the inorganic ion exchangertin (IV) tungstoselenate. Final sample, having 0.88mmoles of 1, 10 phenanthroline per gram of inorganic ion exchanger, was chosen for characterization, including ion exchange capacity, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The ion exchange capacity of Li+, Na+, Ca2+, Sr2+ metals was determined by using the synthesized material. The adsorption behavior of Al3+,Co2+,Ni2+,Cu2+,Cd2+,Pb2+ in various solvent systems have been studied. Based on distribution Coefficient (Kd) values, few analytically necessary separations of metal ions from the synthetic mixture have been achieved on the column of the composite ion exchanger.

Study of an Inorganic Ion Exchanger LiMn1.25O3

2013 ◽  
Vol 842 ◽  
pp. 263-266
Author(s):  
Jin He Jiang
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Solid State Reaction ◽  
Exchange Capacity ◽  
Spinel Type ◽  
Ion Exchange Capacity ◽  
X Ray ◽  
Inorganic Ion Exchanger ◽  
Inorganic Ion ◽  
Crystallization Method

[LiMn1.25O3] was prepared by a solid state reaction crystallization method. And it was a spinel-type metal compound. The solid state reaction with this material was investigation by X-ray, saturation capacity of exchange, and Kd measurement. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 4.0mmol/g for Li+.

The Synthesis and Ion-Exchange Property of Li0.5Mn1.375O3

2013 ◽  
Vol 842 ◽  
pp. 259-262
Author(s):  
Jin He Jiang ◽  
Wei Yu Dai
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Solid State Reaction ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Exchange Property ◽  
Spinel Type ◽  
Inorganic Ion Exchanger ◽  
Inorganic Ion ◽  
Crystallization Method

Compound [Li0.5Mn1.375O3] was a spinel-type metal compound and was prepared by a solid state reaction crystallization method. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The characterization results showed that the exchange capacity of Li+ was 2.8mmol/g for Li+. Li0.5Mn1.375O3 is an ion-memory inorganic ion exchanger of Li+. It had a memorial ion-sieve property for Li+.

scholarly journals Oxometalate-Glass Composites and Thin Films

1990 ◽  
Vol 180 ◽  
Author(s):  
Karin Moller ◽  
Thomas Bein ◽  
C. Jeffrey Brinker
Keyword(s):  
Thin Films ◽  
Ion Exchange ◽  
Sol Gel ◽  
Composite Films ◽  
Exchange Capacity ◽  
Exafs Spectroscopy ◽  
Gel Formation ◽  
Ion Exchange Capacity ◽  
Glass Composites ◽  
Exchange Properties

ABSTRACTNew glass-composites with ion exchange properties have been developed. Ammonium 12-molybdophosphate (AMP) (NH4)3PMo12O40, and ammonium 12-tungstophosphate (AWP) (NH4)3PW12O40, known for their ion exchange capabilities, are included either in preformed aerogels with defined pore size, or are added to sol-gel mixtures during the process of gel formation. Characterization is carried out by FTIR, Raman and EXAFS spectroscopy. Ion exchange capacities for the oxometalate precursors are determined for silver and rubidium and are compared to those of the glass composites. Glass composites show high ion exchange capacity, but some portion of the metalate complexes leaches from the glass during the procedure. This is in contrast to thin composite films, which have almost no porosity and do not show loss of metalate. EXAFS spectroscopy demostrates that the oxometalate microstructure is maintained in glass composites and that rubidium ions after ion exchange in glasses occupy similar cation positions as in the precursor compounds.

Synthesis and Ion-Exchange Properties of Lanthanum Tungstate, A New Inorganic Ion Exchanger

1982 ◽  
Vol 17 (7) ◽  
pp. 935-943 ◽  
Author(s):  
S. Waqif Husain ◽  
Sh. Rasheedzad ◽  
J. L. Manzoori ◽  
Y. Jabbari
Keyword(s):  
Ion Exchange ◽  
Ion Exchanger ◽  
Inorganic Ion Exchanger ◽  
Inorganic Ion ◽  
Exchange Properties
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