Highly Selective Inorganic Crystalline Ion Exchange Material for Sr2+in Acidic Solutions

1996 ◽  
Vol 30 (12) ◽  
pp. 3630-3633 ◽  
Author(s):  
Tina M. Nenoff ◽  
James E. Miller ◽  
Steven G. Thoma ◽  
Daniel E. Trudell
Keyword(s):  
Ion Exchange ◽  
Acidic Solutions ◽  
Exchange Material

SNL-1, a Highly Selective Inorganic Crystalline Ion Exchange Material for Sr2+ in Acidic Solutions

1995 ◽  
Vol 412 ◽  
Author(s):  
T. M. Nenoff ◽  
S. G. Thoma ◽  
J. E. Miller ◽  
D. E. Trudell
Keyword(s):  
Ion Exchange ◽  
Continuous Flow ◽  
High Selectivity ◽  
Solution Ph ◽  
Acidic Solutions ◽  
Ph Values ◽  
Inorganic Ion ◽  
Competing Cations ◽  
Exchange Material

AbstractA new inorganic ion exchange material, called SNL-1, has been prepared at Sandia National Laboratories. Developmental samples of SNL-1 have been determined to have high selectivity for the adsorption of Sr from highly acidic solutions (1 M HNO3). This paper presents results obtained for the material in batch ion exchange tests conducted at various solution pH values and in the presence of a number of competing cations. Results from a continuous flow column ion exchange experiment are also presented.

Using ion exchange resins for determination of uranium isotopic composition in industrial sulfate acidic solutions via alpha spectrometry

2018 ◽  
Author(s):  
V. S. Semenishchev ◽  
S. M. Titova ◽  
G. M. Bunkov ◽  
A. I. Trubcheninova ◽  
S. V. Kirillov
Keyword(s):  
Ion Exchange ◽  
Isotopic Composition ◽  
Alpha Spectrometry ◽  
Ion Exchange Resins ◽  
Acidic Solutions ◽  
Exchange Resins

scholarly journals MODIFYING WASTE POLYSTYRENE TO ION EXCHANGE MATERIAL: OPTIMIZING THE SULFONATION PROCESS AND COLUMN STUDY FOR THE REMOVAL OF Cr3+

2020 ◽  
Vol 58 (5A) ◽  
pp. 150
Author(s):  
Thuy Thi Pham ◽  
Hung Quoc Nguyen ◽  
Khai Manh Nguyen
Keyword(s):  
Ion Exchange ◽  
Metal Ion ◽  
Tap Water ◽  
Plastic Waste ◽  
Wildlife Habitat ◽  
Experimental Result ◽  
Model Parameters ◽  
Operational Parameter ◽  
Waste Polystyrene ◽  
Exchange Material

The incredible growth of plastic waste is a major concern for the whole society in recent years. The accumulation of plastic waste has badly effects on wildlife, habitat, and humans. Plastics that act as pollutants are categorized into different sizes, from micro to macro. Disposable plastic waste was collected at the bakery shop and removed the residue food by tap water and NaOH 1M to remove residual food. This study focuses on modify waste plastic by sulfuric acid to bind the sulfonated function group on the structure of the polystyrene chain at room temperature. The sulfonated product was used for removing heavy metal ion in water with the mechanism of the ion exchange process. The prepared ion exchange material was characterized by FTIR and SEM to ensure that the sulfonation process has happened. The chromium (III) ion removal by modified ion exchange product in continuous mode was affected by an operational parameter such as the bed height of sulfonated material. The Yoon-Nelson and Thomas model were used to analyze the experimental result and the model parameters were evaluated. From this result, it can be concluded that with the increasing amount of sulfonated waste polystyrene, exchange capacity, and the time required for a 50% adsorbate breakthrough was higher.

Dissolution of beidellite in acidic solutions: Ion exchange reactions and effect of crystal chemistry on smectite reactivity

2016 ◽  
Vol 180 ◽  
pp. 97-108 ◽  
Author(s):  
Valentin Robin ◽  
Emmanuel Tertre ◽  
Olivier Regnault ◽  
Michael Descostes
Keyword(s):  
Ion Exchange ◽  
Crystal Chemistry ◽  
Exchange Reactions ◽  
Acidic Solutions

ChemInform Abstract: Synthesis and Ion-Exchange Behavior of New Three-Component Ion-Exchange Material: Zirconium(IV) Iodomolybdate.

ChemInform ◽  
1988 ◽  
Vol 19 (18) ◽  
Author(s):  
S. Z. QURESHI ◽  
N. RAHMAN
Keyword(s):  
Ion Exchange ◽  
Exchange Material

Ammonium Removal from Aqueous Solutions Using an Ammonium Ion-Exchange Material, the Equilibrium Study

2011 ◽  
Vol 322 ◽  
pp. 102-107
Author(s):  
Lu Hua You ◽  
Xin Tan ◽  
Qiong Qiong Liu ◽  
Lin Zhao
Keyword(s):  
Ion Exchange ◽  
Aqueous Solutions ◽  
Contact Time ◽  
Solution Concentration ◽  
Initial Solution ◽  
Ammonium Ion ◽  
Isotherm Models ◽  
Experimental Conditions ◽  
Initial Solution Concentration ◽  
Exchange Material

This article investigates the removal of ammonium from aqueous solutions using the ammonium ion-exchange material prepared by the modified kaolin. Batch tests were performed under a range of conditions to assess the effect of initial solution concentration, contact time and solution PH on the performance and capacity of the media for this application. The findings show that increasing initial solution concentration and contact time provide the best performance at an optimum PH of between 6 and 7 and the maximum ammonium adsorption capacity reaches at 79mgNH4+g-1 under the experimental conditions studied. Five isotherm models were used to describe the isotherm data. Three-parameter isotherm models (Redlich–Peterson and Langmuir–Freundlich) prove a better fit than two-parameter isotherm models (Langmuir, Freundlich and Temkin). These results indicate that the ammonium ion-exchange material is a promising material for cost-effective removal of ammonium from wastewater.

Sorption of heavy metal ions onto e-waste-derived ion-exchange material – selecting the optimum isotherm

2018 ◽  
Vol 126 ◽  
pp. 196-207 ◽  
Author(s):  
Akanksha Kalra ◽  
Pejman Hadi ◽  
Hamish R. Mackey ◽  
Tareq Al Ansari ◽  
Gordon McKay
Keyword(s):  
Heavy Metal ◽  
Ion Exchange ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Exchange Material

The use of low rank brown coal as an ion exchange material

Fuel ◽  
1990 ◽  
Vol 69 (1) ◽  
pp. 84-87 ◽  
Author(s):  
Christopher Lafferty ◽  
Malcolm Hobday
Keyword(s):  
Ion Exchange ◽  
Brown Coal ◽  
Low Rank ◽  
Exchange Material
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