Echange ionique dans les zéolites par la méthode sèche. Mise en évidence de l'influence de quelques paramètres
Identifieur interne : 000934 ( Main/Exploration ); précédent : 000933; suivant : 000935Echange ionique dans les zéolites par la méthode sèche. Mise en évidence de l'influence de quelques paramètres
Auteurs : A. Feddag [Algérie] ; A. Bengueddach [Algérie]Source :
- Journal de physique. IV [ 1155-4339 ] ; 2005.
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- Pascal (Inist)
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Abstract
There is only very little data on solid-state ion exchange in zeolites reported in the literature so far. These studies concern principally alkaline and alkaline earth metals. We can obtain, high exchanged zeolites with transition metals, between 30 and 50% exchange. It was shown that, both low temperature and high-temperature exchange processes occured. It was the aim of the present study to elucidate whether in principle, higher degrees of exchange can be obtained by solid-state reaction than by conventional ion exchange in salt solution, and result in catalysts more active. We also study, the influence of some parameters, such as, temperature, inert gas flow, time of exchange and the proportion of salt, on the degree of exchange. Chlorides of cobalt and iron were tested.
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Bengueddach</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Chimie des Matériaux, Université d'Oran Es-sénia, BP. 1524</s1><s2>Oran</s2><s3>DZA</s3><sZ>2 aut.</sZ></inist:fA14><country>Algérie</country><placeName><settlement type="city">Oran</settlement><region nuts="2">Wilaya d'Oran</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">05-0387265</idno><date when="2005">2005</date><idno type="stanalyst">PASCAL 05-0387265 INIST</idno><idno type="RBID">Pascal:05-0387265</idno><idno type="wicri:Area/PascalFrancis/Corpus">000178</idno><idno type="wicri:Area/PascalFrancis/Curation">000117</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000175</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000175</idno><idno type="wicri:doubleKey">1155-4339:2005:Feddag A:echange:ionique:dans</idno><idno type="wicri:Area/Main/Merge">000945</idno><idno type="wicri:Area/Main/Curation">000934</idno><idno type="wicri:Area/Main/Exploration">000934</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="fr" level="a">Echange ionique dans les zéolites par la méthode sèche. Mise en évidence de l'influence de quelques paramètres</title><author><name sortKey="Feddag, A" sort="Feddag, A" uniqKey="Feddag A" first="A." last="Feddag">A. Feddag</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Département de Chimie, Faculté des Sciences, Université de Mostaganem</s1><s2>27000</s2><s3>DZA</s3><sZ>1 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>27000</wicri:noRegion></affiliation></author><author><name sortKey="Bengueddach, A" sort="Bengueddach, A" uniqKey="Bengueddach A" first="A." last="Bengueddach">A. Bengueddach</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Chimie des Matériaux, Université d'Oran Es-sénia, BP. 1524</s1><s2>Oran</s2><s3>DZA</s3><sZ>2 aut.</sZ></inist:fA14><country>Algérie</country><placeName><settlement type="city">Oran</settlement><region nuts="2">Wilaya d'Oran</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal de physique. IV</title><title level="j" type="abbreviated">J. phys., IV</title><idno type="ISSN">1155-4339</idno><imprint><date when="2005">2005</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal de physique. IV</title><title level="j" type="abbreviated">J. phys., IV</title><idno type="ISSN">1155-4339</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cobalt Ions</term><term>Fischer Tropsch synthesis</term><term>Heterogeneous catalysis</term><term>Ion exchange</term><term>Iron Ions</term><term>Modified material</term><term>Molecular sieve</term><term>Solid phase</term><term>Temperature effect</term><term>Transition metal Ions</term><term>Zeolite</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Echange ion</term><term>Zéolite</term><term>Tamis moléculaire</term><term>Matériau modifié</term><term>Phase solide</term><term>Métal transition Ion</term><term>Catalyse hétérogène</term><term>Effet température</term><term>Cobalt Ion</term><term>Fer Ion</term><term>Synthèse Fischer Tropsch</term><term>Zéolite X</term><term>Zéolite Y</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">There is only very little data on solid-state ion exchange in zeolites reported in the literature so far. These studies concern principally alkaline and alkaline earth metals. We can obtain, high exchanged zeolites with transition metals, between 30 and 50% exchange. It was shown that, both low temperature and high-temperature exchange processes occured. It was the aim of the present study to elucidate whether in principle, higher degrees of exchange can be obtained by solid-state reaction than by conventional ion exchange in salt solution, and result in catalysts more active. We also study, the influence of some parameters, such as, temperature, inert gas flow, time of exchange and the proportion of salt, on the degree of exchange. Chlorides of cobalt and iron were tested.</div></front></TEI><affiliations><list><country><li>Algérie</li></country><region><li>Wilaya d'Oran</li></region><settlement><li>Oran</li></settlement></list><tree><country name="Algérie"><noRegion><name sortKey="Feddag, A" sort="Feddag, A" uniqKey="Feddag A" first="A." last="Feddag">A. Feddag</name></noRegion><name sortKey="Bengueddach, A" sort="Bengueddach, A" uniqKey="Bengueddach A" first="A." last="Bengueddach">A. Bengueddach</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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