<?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>1993-8012</journal-id>
<journal-title><![CDATA[Minería y Geología]]></journal-title>
<abbrev-journal-title><![CDATA[Min. Geol.]]></abbrev-journal-title>
<issn>1993-8012</issn>
<publisher>
<publisher-name><![CDATA[EDUM. Universidad de Moa]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1993-80122019000200196</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Remoción de iones hierro(II) en medio acuoso con una toba vítrea natural]]></article-title>
<article-title xml:lang="en"><![CDATA[Removal of iron(II) ions in aqueous medium using a natural Cuban vitreous tuff]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garrido-Rodríguez]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sosa-Martínez]]></surname>
<given-names><![CDATA[Mercedes Eulalia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Pérez]]></surname>
<given-names><![CDATA[María Caridad]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueroa-Ramírez]]></surname>
<given-names><![CDATA[Pavel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fonseca-González]]></surname>
<given-names><![CDATA[Ezequiel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Tecnológica de La Habana  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Moa  ]]></institution>
<addr-line><![CDATA[ Holguín]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<volume>35</volume>
<numero>2</numero>
<fpage>196</fpage>
<lpage>209</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1993-80122019000200196&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1993-80122019000200196&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1993-80122019000200196&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se evaluó la capacidad de absorción en la remoción de iones hierro(II) en una fase líquida, de una toba vítrea cubana en estado natural del yacimiento Magueyal. Se prepararon disoluciones moduladas y de un residual líquido generado durante la limpieza química de las superficies internas de las calderas en las termoeléctricas, el cual presenta altas concentraciones de iones hierro (II) en su composición. La cinética del proceso se describió por el modelo de pseudosegundo orden, donde la ecuación isoterma de adsorción de Freundlich resultó con el mejor ajuste. Se alcanza una capacidad máxima de adsorción igual a 34,4 mg/g de iones hierro(II) en la toba vítrea.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This study assessed the absorption capacity in removing iron (II) ions in a liquid phase of a Cuban glassy tuff in natural state from Magueyal deposit. Modulated solutions and a liquid residual generated during the chemical cleaning of the internal surfaces of the boilers in the thermoelectric plants were prepared, showing high concentrations of iron(II) ions in its composition. The pseudo second order model was used to determine the kinetics of the process, where Freundlich's isothermal adsorption equation was the best fit, and a maximum adsorption capacity equal to 34.4 mg / g of iron (II) ions was reached.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[toba vítrea]]></kwd>
<kwd lng="es"><![CDATA[adsorción]]></kwd>
<kwd lng="es"><![CDATA[modelo cinético]]></kwd>
<kwd lng="es"><![CDATA[isoterma de adsorción]]></kwd>
<kwd lng="es"><![CDATA[capacidad de adsorción]]></kwd>
<kwd lng="en"><![CDATA[glassy tuff]]></kwd>
<kwd lng="en"><![CDATA[adsorption]]></kwd>
<kwd lng="en"><![CDATA[kinetic model]]></kwd>
<kwd lng="en"><![CDATA[adsorption isotherm]]></kwd>
<kwd lng="en"><![CDATA[adsorption capacity]]></kwd>
</kwd-group>
</article-meta>
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