Preparation and evaluation of amidoximated poly(styrene-acrylonitrile) nanofibers for uranium adsorption from aqueous solutions

2021 ◽  
Vol 28 (5) ◽  
Author(s):  
Roshanak Rostamian ◽  
Mahmoud Firouzzare ◽  
Fazel Zahakifar
Keyword(s):  
Aqueous Solutions ◽  
Uranium Adsorption ◽  
Styrene Acrylonitrile ◽  
Preparation And Evaluation

Preparation and Evaluation of Skeletal Cobalt-Molybdenum Hydrodesulfurization Catalysts

1995 ◽  
Vol 60 (4) ◽  
pp. 568-575
Author(s):  
Karel Sporka ◽  
Jiří Hanika ◽  
Vladimír Jůn
Keyword(s):  
Aqueous Solutions ◽  
Active Component ◽  
Catalyst Activity ◽  
Gas Oil ◽  
Gamma Alumina ◽  
Molybdenum Sulfides ◽  
Hydrodesulfurization Catalysts ◽  
Hds Catalysts ◽  
Kinetics Of ◽  
Preparation And Evaluation

Preparation of skeletal Co-Mo catalysts by controlled impregnation of aluminosilicate skeletons containing deposited gamma-alumina with aqueous solutions of active component precursors has been investigated. The activity of the laboratory catalysts in gas oil hydrodesulfurization has been determined. Kinetics of impregnation of skeletal supports, the effect of their type, and the dependence of catalyst activity on the content of cobalt and molybdenum sulfides are reported. HDS skeletal catalysts prepared were compared with the extruded types. It was found that skeletal HDS catalysts show the higher activity (related to the content of alumina and Co-Mo sulfides) than the extruded ones due to the less significant effect of internal diffusion. However, if the activity is related to the same volume of catalyst bed, the activity of skeletal catalysts is only one fourth of that of the extruded types.

Preparation and Evaluation of a Water-Soluble Cholesterol Standard

1974 ◽  
Vol 20 (4) ◽  
pp. 482-485 ◽  
Author(s):  
Bernard Klein ◽  
Norman B Kleinman ◽  
James A Foreman
Keyword(s):  
Aqueous Solutions ◽  
Water Soluble ◽  
Organic Salts ◽  
Cholesteryl Hemisuccinate ◽  
Preparation And Evaluation ◽  
Analytical Reference ◽  
Inorganic And Organic

Abstract We synthesized some inorganic and organic salts of cholesteryl hemisuccinate. Aqueous solutions of the morpholine salt, at concentrations equivalent to 400 mg of cholesterol per deciliter, have been evaluated as aqueous cholesterol standards and compared to alcoholic cholesterol solutions in analyses for cholesterol in serum, as performed by two analytical reference procedures. No significant differences were found. The usefulness of solutions of this salt as additives for serum controls or recovery studies has been also demonstrated.

New insights into the uranium adsorption behavior of mesoporous SBA-15 silicas decorated with alkylphosphine oxide ligands

RSC Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 1210-1217 ◽  
Author(s):  
Wen Zhang ◽  
Gang Ye ◽  
Jing Chen
Keyword(s):  
Aqueous Solutions ◽  
Addition Reaction ◽  
Mesoporous Silicas ◽  
Adsorption Behavior ◽  
Uranium Adsorption

Alkylphosphine oxide functionalized mesoporous silicas were prepared by co-condensation and further addition reaction with secondary n-propylphosphine oxide and are promising candidates for the preconcentration and adsorption of uranium from acidic aqueous solutions.

scholarly journals PREPARATION AND EVALUATION OF MAGNETIC CHITOSAN PARTICLES MODIFIED WITH ETHYLENEDIAMINE AND Fe(III) FOR THE REMOVAL OF Cr(VI) FROM AQUEOUS SOLUTIONS

Química Nova ◽  
2014 ◽  
Author(s):  
Thiago V. Toledo ◽  
Carlos R. Bellato ◽  
Carlos H. Ferreira de Souza ◽  
Junielly T. Domingues ◽  
Danilo de C. Silva ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Magnetic Chitosan ◽  
Preparation And Evaluation

Functionalized Porous Aromatic Framework for Efficient Uranium Adsorption from Aqueous Solutions

2017 ◽  
Vol 9 (14) ◽  
pp. 12511-12517 ◽  
Author(s):  
Baiyan Li ◽  
Qi Sun ◽  
Yiming Zhang ◽  
Carter W. Abney ◽  
Briana Aguila ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Uranium Adsorption ◽  
Porous Aromatic Framework
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