<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2223-4861</journal-id>
<journal-title><![CDATA[Centro Azúcar]]></journal-title>
<abbrev-journal-title><![CDATA[cen. az.]]></abbrev-journal-title>
<issn>2223-4861</issn>
<publisher>
<publisher-name><![CDATA[Editorial Feijóo]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2223-48612019000100001</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[ESTUDIO CINÉTICO DE LA SORCIÓN DE IONES HIDRONIO EN ARCILLA DE LA REGIÓN DE MANICARAGUA, VILLA CLARA, CUBA]]></article-title>
<article-title xml:lang="en"><![CDATA[KINETIC STUDY OF HYDRONIUM ION SORPTION IN CLAY FROM MANICARAGUA REGION, VILLA CLARA, CUBA]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Prieto García]]></surname>
<given-names><![CDATA[Julio Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alujas Díaz]]></surname>
<given-names><![CDATA[Adrián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Iturria Quintero]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Broche Galindo]]></surname>
<given-names><![CDATA[María Hertha]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Enríquez García]]></surname>
<given-names><![CDATA[Mixary]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mollineda Trujillo]]></surname>
<given-names><![CDATA[Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de las Villas Facultad de Química y Farmacia Departamento Licenciatura en Química]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de las Villas Facultad de Química y Farmacia Centro de Estudios de Química Aplicada]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de las Villas Facultad de Química y Farmacia Departamento de Ingeniería Química]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de las Villas Facultad de Ciencias Agropecuarias Centro de Investigaciones Agropecuarias]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<volume>46</volume>
<numero>1</numero>
<fpage>1</fpage>
<lpage>9</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2223-48612019000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2223-48612019000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2223-48612019000100001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En la investigación se exponen los resultados del estudio cinético de la adsorción de los iones hidronio en arcilla del yacimiento Las Mozas, en la región de Manicaragua, provincia de Villa Clara, República de Cuba, con el objetivo de facilitar la activación de la arcilla. Se determina que la adsorción se ajusta a un modelo cinético de seudoprimer orden. El estudio evidencia la difusión intrapartícula y en la película de líquido a las diferentes temperaturas trabajadas. La baja energía de activación del proceso de adsorción justifica la facilidad con que se adsorbe el ion hidronio. Los escasos niveles energéticos del calor isostérico involucrado demuestra una heterogeneidad energética superficial exigua. El proceso de activación conlleva a una liberación de energía.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT These research exposes the kinetic study results for the adsorption of hydronium ions in clay from Las Mozas deposit, in Manicaragua region, province of Villa Clara, Cuba. The main objective is to facilitate clay activation. Moreover, it is determined that the adsorption satisfies a pseudo first order kinetic model. The study evidences intraparticle diffusion and in liquid film too, for different temperatures. The low activation energy of adsorption process justifies the easiness in which the hydronium ion is adsorbed. The low value of the isosteric heat involved demonstrates the low energetic superficial heterogeneity. The activation process leads to an energy release.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[arcilla]]></kwd>
<kwd lng="es"><![CDATA[hidronio]]></kwd>
<kwd lng="es"><![CDATA[adsorción]]></kwd>
<kwd lng="es"><![CDATA[modelo cinético]]></kwd>
<kwd lng="en"><![CDATA[clay]]></kwd>
<kwd lng="en"><![CDATA[hydronium]]></kwd>
<kwd lng="en"><![CDATA[adsorption]]></kwd>
<kwd lng="en"><![CDATA[kinetic model]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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