Alpha-benzoinomixe [benzoinoxime] : extracting agent for uranium(VI), tungsten(VI), molybdenum(VI) and some transition metals of the iron family
Identifieur interne : 001234 ( Main/Exploration ); précédent : 001233; suivant : 001235Alpha-benzoinomixe [benzoinoxime] : extracting agent for uranium(VI), tungsten(VI), molybdenum(VI) and some transition metals of the iron family
Auteurs : S. Boutamine [Algérie] ; Z. Hank ; M. Meklati ; O. Benali-BaitichSource :
- Journal of radioanalytical and nuclear chemistry [ 0236-5731 ] ; 1994.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
The effect of pH on the percent extraction of vanadium(V), iron(II), cobalt(II), nickel(II), copper(II), molybdenum(VI), tungsten(VI) and uranium(VI) by α-benzoinoxime in different solvent has been studied. The maximum recovery is not appreciably affected by the nature of the solvent, but occurs at different pH values for different metals. The pH corresponding to maximum extraction increases with increasing hydrolysis pK of the species in aqueous solution, and decreases with increasing stability constant of the complexes formed. Alpha-benzoinoxime allows the separation of these metal ions into three groups: V(V), Mo(VI) and W(VI) are extracted at pH=2, U(VI) at pH=5, Fe(II), Cu(II), Co(II) and Ni(II) at around pH=10
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Alpha-benzoinomixe [benzoinoxime] : extracting agent for uranium(VI), tungsten(VI), molybdenum(VI) and some transition metals of the iron family</title><author><name sortKey="Boutamine, S" sort="Boutamine, S" uniqKey="Boutamine S" first="S." last="Boutamine">S. Boutamine</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>USTHB, inst. chimie, lab. chimie coordination</s1><s2>Algiers</s2><s3>DZA</s3></inist:fA14><country>Algérie</country><placeName><settlement type="city">Alger</settlement><region nuts="2">Wilaya d'Alger</region></placeName></affiliation></author><author><name sortKey="Hank, Z" sort="Hank, Z" uniqKey="Hank Z" first="Z." last="Hank">Z. Hank</name></author><author><name sortKey="Meklati, M" sort="Meklati, M" uniqKey="Meklati M" first="M." last="Meklati">M. Meklati</name></author><author><name sortKey="Benali Baitich, O" sort="Benali Baitich, O" uniqKey="Benali Baitich O" first="O." last="Benali-Baitich">O. Benali-Baitich</name></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">95-0192824</idno><date when="1994">1994</date><idno type="stanalyst">PASCAL 95-0192824 INIST</idno><idno type="RBID">Pascal:95-0192824</idno><idno type="wicri:Area/PascalFrancis/Corpus">000359</idno><idno type="wicri:Area/PascalFrancis/Curation">000344</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000364</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000364</idno><idno type="wicri:doubleKey">0236-5731:1994:Boutamine S:alpha:benzoinomixe:benzoinoxime</idno><idno type="wicri:Area/Main/Merge">001285</idno><idno type="wicri:Area/Main/Curation">001234</idno><idno type="wicri:Area/Main/Exploration">001234</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Alpha-benzoinomixe [benzoinoxime] : extracting agent for uranium(VI), tungsten(VI), molybdenum(VI) and some transition metals of the iron family</title><author><name sortKey="Boutamine, S" sort="Boutamine, S" uniqKey="Boutamine S" first="S." last="Boutamine">S. Boutamine</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>USTHB, inst. chimie, lab. chimie coordination</s1><s2>Algiers</s2><s3>DZA</s3></inist:fA14><country>Algérie</country><placeName><settlement type="city">Alger</settlement><region nuts="2">Wilaya d'Alger</region></placeName></affiliation></author><author><name sortKey="Hank, Z" sort="Hank, Z" uniqKey="Hank Z" first="Z." last="Hank">Z. Hank</name></author><author><name sortKey="Meklati, M" sort="Meklati, M" uniqKey="Meklati M" first="M." last="Meklati">M. Meklati</name></author><author><name sortKey="Benali Baitich, O" sort="Benali Baitich, O" uniqKey="Benali Baitich O" first="O." last="Benali-Baitich">O. Benali-Baitich</name></author></analytic><series><title level="j" type="main">Journal of radioanalytical and nuclear chemistry</title><title level="j" type="abbreviated">J. radioanal. nucl. chem.</title><idno type="ISSN">0236-5731</idno><imprint><date when="1994">1994</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of radioanalytical and nuclear chemistry</title><title level="j" type="abbreviated">J. radioanal. nucl. chem.</title><idno type="ISSN">0236-5731</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Analytical reagent</term><term>Benzenic compound</term><term>Chemical enrichment</term><term>Experimental study</term><term>Liquid liquid extraction</term><term>Molybdenum VI</term><term>Optimization</term><term>Organic ligand</term><term>Oxime</term><term>Separation</term><term>Solvent effect</term><term>Tungsten VI</term><term>Uranium VI</term><term>pH</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term><term>Enrichissement chimique</term><term>Séparation</term><term>Extraction liquide liquide</term><term>Réactif analytique</term><term>Oxime</term><term>Composé benzénique</term><term>Coordinat organique</term><term>Tungstène VI</term><term>Molybdène VI</term><term>Uranium VI</term><term>Optimisation</term><term>pH</term><term>Effet solvant</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The effect of pH on the percent extraction of vanadium(V), iron(II), cobalt(II), nickel(II), copper(II), molybdenum(VI), tungsten(VI) and uranium(VI) by α-benzoinoxime in different solvent has been studied. The maximum recovery is not appreciably affected by the nature of the solvent, but occurs at different pH values for different metals. The pH corresponding to maximum extraction increases with increasing hydrolysis pK of the species in aqueous solution, and decreases with increasing stability constant of the complexes formed. Alpha-benzoinoxime allows the separation of these metal ions into three groups: V(V), Mo(VI) and W(VI) are extracted at pH=2, U(VI) at pH=5, Fe(II), Cu(II), Co(II) and Ni(II) at around pH=10</div></front></TEI><affiliations><list><country><li>Algérie</li></country><region><li>Wilaya d'Alger</li></region><settlement><li>Alger</li></settlement></list><tree><noCountry><name sortKey="Benali Baitich, O" sort="Benali Baitich, O" uniqKey="Benali Baitich O" first="O." last="Benali-Baitich">O. Benali-Baitich</name><name sortKey="Hank, Z" sort="Hank, Z" uniqKey="Hank Z" first="Z." last="Hank">Z. Hank</name><name sortKey="Meklati, M" sort="Meklati, M" uniqKey="Meklati M" first="M." last="Meklati">M. Meklati</name></noCountry><country name="Algérie"><region name="Wilaya d'Alger"><name sortKey="Boutamine, S" sort="Boutamine, S" uniqKey="Boutamine S" first="S." last="Boutamine">S. Boutamine</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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