separation zirconium studied

Study of Zirconium and Hafnium Separation by Solvent ...

The extraction and separation behavior of zirconium and hafnium has been widely studied. There are several reports on the separation of these elements in different media and extractants. Figure 1 shows the structure of the extractants used in this work for the extraction of the zirconium and hafnium [16].

Study of the separation of zirconium and hafnium from ...

Made available by U.S. Department of Energy Office of Scientific and Technical Information ...

Separation of zirconium and hafnium using Diphonix ...

Feb 01, 2009 · The sorption behavior and possible separation of zirconium and hafnium from acid solution was studied on Diphonix® chelating resin containing diphosphonic, sulfonic and carboxylic acid groups. Sulfuric acid solution was selected and then used in dynamic studies. The effects of acid concentration, temperature and solution flow rate on the ...

Separation of hafnium and zirconium by liquid-liquid ...

hydrocliloric acid was also studied. 2-In the separation of zirconium from hafnium by extraction, an organic solvent of 60 volume per cent tributyl phosphate-UO volume per cent heptane was used. The combination of 5»0 normal nitric acid

The separation of radioactive technetium and zirconium by ...

The study has been confined to the long-lived fission products, which are produced in significant quantities from a nuclear reactor. The fission products studied are; zirconium, technetium, strontium, cesium, cerium, promethium, and lanthanum. These studies have resulted in the separation of the fission products into three

Extraction and separation of zirconium from hafnium by ...

Nov 20, 2017 · 高达10%返现 · In the present study, a simple versatile extraction method based on supramolecular solvent microextraction followed by inductively coupled plasma atomic emission spectrometry was developed for the extraction, separation and determination of zirconium (Zr) from hafnium (Hf). Zr and Hf were complexed with bis(2,4,4-trimethylpentyl) phosphinic acid, to obtain

Separation of zirconium and hafnium using hollow fibers ...

Sep 28, 2002 · A supported liquid membrane system using hollow fiber membranes as supports (HFSLM) has been studied for the separation of zirconium and hafnium, which are typical metal pairs with extreme similarity in chemistry. Tri-n-octylamine (TNOA) and trioctylmethyl ammonium chloride (Aliquat 336) were used as carriers. The effect on the transport and ...

Study of the separation of zirconium and hafnium from ...

Made available by U.S. Department of Energy Office of Scientific and Technical Information ...

STUDY OF THE SEPARATION OF ZIRCONIUM AND

STUDY OF THE SEPARATION OF ZIRCONIUM AND HAFNIUM FROM NITRIC SOLUTIONS BY SOLVENT EXTRACTION Janúbia Cristina B. S. Amaral, Laura R. T. da Rocha and Carlos Antônio de Morais Centro de Desenvolvimento da Tecnologia Nuclear Av. Antonio Carlos 6627, Campus UFMG- Pampulha- CEP 31270-901 Tel: 31-3069 3276 [email protected] [email protected] [email protected]

Study of Zirconium and Hafnium Separation by Solvent ...

The extraction and separation behavior of zirconium and hafnium has been widely studied. There are several reports on the separation of these elements in different media and extractants. Figure 1 shows the structure of the extractants used in this work for the extraction of the zirconium and hafnium [16].

Separation of hafnium from zirconium by anion exchange

separation suitable for analytical work, was abanO: doned. It might prove of interest to those concerne,l: with the polymerization and hydrolysis of zirconium' and hafnium ions in solutions of this nature. .3.2. Elution With Sulfuric Acid The results of om study of the behavior of zir.!: conium and hafnium when eluted with solutions,

Separation of Zirconium from Uranium in U-Zr Alloys Using ...

Jun 04, 2013 · Electronic Theses, Dissertations, and Records of Study (2002– ) View Item; JavaScript is disabled for your browser. Some features of this site may not work without it. Separation of Zirconium from Uranium in U-Zr Alloys Using a Chlorination Process. View/ Open PARKISON-DISSERTATION-2013.pdf (5.387Mb) Date 2013-06-04. Author. Parkison, Adam J.

Extraction and separation of zirconium from hafnium by ...

Nov 20, 2017 · In the present study, a simple versatile extraction method based on supramolecular solvent microextraction followed by inductively coupled plasma atomic emission spectrometry was developed for the extraction, separation and determination of zirconium (Zr) from hafnium (Hf). Zr and Hf were complexed with bis(2,4,4-trimethylpentyl) phosphinic acid, to obtain hydrophobic complex,

Separation of hafnium and zirconium by liquid-liquid ...

hydrocliloric acid was also studied. 2-In the separation of zirconium from hafnium by extraction, an organic solvent of 60 volume per cent tributyl phosphate-UO volume per cent heptane was used. The combination of 5»0 normal nitric acid

Extraction Chromatography based Separation of Zirconium(IV ...

Sep 07, 2021 · Selective separation of zirconium(IV), from the simulated high-level liquid waste solution containing uranium(VI) and trivalent lanthanides, during reprocessing of fast reactor metal fuel was studied by extraction chromatography using N,N-di-octyl-2-hydroxyacetamide (DOHyA) impregnated on to Amberlite XAD-7 resin.

(PDF) Separation of Zirconium and Hafnium: A Review

First, it is a highly flammable solid and a dust explosion hazard. Second, zirconium is routinely found with some level of hafnium, since separation of the two elements is very difficult [3].The ...

A study of the behavior of zirconium in aqueous solutions ...

a study of the behavior of zirconium in aqueous solutions and the separation of radioactive zirconium by electrodialysis by charles william brauer, jr. a thesis submitted to the faculty of the school of mines and metallurgy of the university of missouri

Efficient separation of vitamins mixture in aqueous ...

In this work, a stable zirconium-based metal-organic framework (DUT-67) was used to adsorb and separate NIA and NIC in aqueous solutions. The adsorption capacities for NIA and NIC at the concentration ratio of 1:1 were 110.2 mg g-1 and 11.2 mg g-1, respectively. Further study indicates that low ratio of NIA/ NIC is in favor of the separation.

Study of Zirconium and Hafnium Separation by Solvent ...

"Study of Zirconium and Hafnium Separation by Solvent Extraction Technique from Nitric and Hydrochloric Solutions with Acid, Basic and Neutral Extractants" written by Janúbia Cristina B. S. Amaral, Carlos Antônio de Morais, published by World Journal of Engineering and Technology, Vol.4 No.3D, 2016

Radiochemical Studies on the Separation of Cesium, Cobalt ...

Aug 22, 2012 · A procedure for removal and separation of Cs, Eu and activation product of Co using zirconium selenomolybdate was developed. Interactions of 134Cs(I), 152,154Eu(III), and 60Co(II) ions from HNO3 acid solutions with zirconium selenomolybdate matrix, dried at 50°C, have been individually investigated by the batch

Separation of Y from Sr by zirconium vanadate gel ion ...

Jul 03, 2012 · A new zirconium vanadate (Zr–V) ion-exchanger was synthesized and characterized for fast and selective separation procedure of 90 Y from 89 Sr. The method was based on 90 Y(III) sorption from aqueous HCl solution containing 89 Sr(II) onto Zr–V gel exchanger. The kinetics of Y(III) sorption from HCl solution by Zr–V exchanger was subjected to Weber–Morris, Lagergren, Bhattacharya and ...

Study of Zirconium and Hafnium Separation by Solvent ...

The extraction and separation behavior of zirconium and hafnium has been widely studied. There are several reports on the separation of these elements in different media and extractants. Figure 1 shows the structure of the extractants used in this work for the extraction of the zirconium and hafnium [16].

A study of the behavior of zirconium in aqueous solutions ...

a study of the behavior of zirconium in aqueous solutions and the separation of radioactive zirconium by electrodialysis by charles william brauer, jr. a thesis submitted to the faculty of the school of mines and metallurgy of the university of missouri

Zirconium and hafnium tetrachloride separation ... - OSTI.GOV

Mar 24, 1992 · @article{osti_5158457, title = {Separation of magnesium from magnesium chloride and zirconium and/or hafnium subchlorides in the production of zirconium and/or hafnium sponge metal}, author = {Abodishish, H A.M. and Adams, R J and Kearl, S R}, abstractNote = {This patent describes the producing of a refractory metal wherein a sponge refractory metal is produced as an intermediate

Anion Exchange Studies. I. Separation of Zirconium and ...

May 01, 2002 · Behavior of Zirconium-95 and Niobium-95 in Dilute Hydrochloric Acid toward Cation Exchange Resin. Bulletin of the Chemical Society of Japan 1958, 31 (6) , 699-704. DOI: 10.1246/bcsj.31.699. Hirotoshi Sano, Reiko Shiomi. Separation of niobium from zirconium by a

EXTRACTION OF ZIRCONIUM FROM ZIRCON. (A NEW

zirconium and separation factor of zirconium and hafnium in TBP solvent. It is possible to lower sulphate ions content to acceptable 9 levels (sulphate/zirconium = 0.17) by prolonged washing of the zirconium bhydroxide precipitates before dissolution in nitric acid. However, this is a time consuming process and adversely

Use of a modified zirconia support in the separation of ...

Jan 25, 2002 · The modified zirconia support allowed the separation of immunoglobulins (IgG, IgA and IgM) from untreated human serum. Elution was possible under mild conditions with a step salt gradient. Overall protein recoveries in the range of 109-125% were obtained with human serum.

Radiochemical Studies on the Separation of Cesium, Cobalt ...

Aug 22, 2012 · A procedure for removal and separation of Cs, Eu and activation product of Co using zirconium selenomolybdate was developed. Interactions of 134Cs(I), 152,154Eu(III), and 60Co(II) ions from HNO3 acid solutions with zirconium selenomolybdate matrix, dried at 50°C, have been individually investigated by the batch

Zirconia as a Dental Biomaterial - PubMed Central (PMC)

Aug 04, 2015 · Currently, zirconia-based ceramics are the most studied, challenging researches for different reasons. Zirconia (zirconium dioxide, ZrO 2 ), also named as “ceramic steel”, has optimum properties for dental use: superior toughness, strength, and fatigue resistance, in addition to excellent wear properties and biocompatibility.

Separation of fluorine/cerium from fluorine-bearing rare ...

Apr 19, 2016 · Separation of fluorine/cerium from fluorine-bearing rare earth sulfate solution using selective adsorption was studied using hydrous zirconium oxide as an adsorbent. The relevant parameters studied for fluoride adsorption were the effects of contact time, pH, nF/nCe ratio, initial fluoride concentration and coexist

Separation of hafnium from zirconium in sulfuric acid ...

High-resolution pressurized ion exchange has been used successfully to study and separate hafnium and zirconium sulfate complexes by chromatographic elution from Dowex 50W-X8 (15 to 25 μm) resin with sulfuric acid solutions. Techniques were developed to continuousl

CX-020786: Speciation and behavior of neptunium and ...

Aug 20, 2019 · CX-020786: Speciation and behavior of neptunium and zirconium in advanced separation process – Oregon State University, Pacific Northwest National Laboratory, and University of Nevada Las Vegas ... Solid species possibly isolated from the studied solutions will be characterized by X-ray diffraction spectroscopy and X-ray absorption fine ...

Separation of hafnium from zirconium in sulfuric acid ...

@article{osti_6870623, title = {Separation of hafnium from zirconium in sulfuric acid solutions using pressurized ion exchange}, author = {Hurst, F J}, abstractNote = {High-resolution pressurized ion exchange has been used successfully to study and separate hafnium and zirconium sulfate complexes by chromatographic elution from Dowex 50W-X8 (15 to 25 ..mu..m) resin with sulfuric acid solutions.

Application of low melting metals for separation of ...

Application of Low Melting Metals for Separation of Uranium and Zirconium in a “Fused Chloride—Liquid Alloy” System Vladimir A. Volkovich 1,* , Dmitry S. Maltsev 1,2, Mariya N. Soldatova 1, ... alkali chloride-based melts was studied in sufficient detail. Analysis of the results of

Study of Zirconium and Hafnium Separation by Solvent ...

Amaral, J. and Antônio de Morais, C. (2016) Study of Zirconium and Hafnium Separation by Solvent Extraction Technique from Nitric and Hydrochloric Solutions with Acid, Basic and Neutral Extractants. World Journal of Engineering and Technology, 4, 138-150. doi: 10.4236/wjet.2016.43D017.

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