<?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>2007-8196</journal-id>
<journal-title><![CDATA[Epistemus (Sonora)]]></journal-title>
<abbrev-journal-title><![CDATA[Epistemus (Sonora)]]></abbrev-journal-title>
<issn>2007-8196</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Sonora, División de Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-81962024000200102</article-id>
<article-id pub-id-type="doi">10.36790/epistemus.v18i37.378</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Concentración de molibdeno a partir de molibdenita 3-R mediante conminución y separación selectiva de pirita]]></article-title>
<article-title xml:lang="en"><![CDATA[Molybdenum Concentration from 3-R Molybdenite through Comminution and Selective Pyrite Separation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gallegos Moreno]]></surname>
<given-names><![CDATA[Hazel René]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Villarreal]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes Guzman]]></surname>
<given-names><![CDATA[Claudia Veronica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Davalos Sanchez]]></surname>
<given-names><![CDATA[Aglae]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz Ramirez]]></surname>
<given-names><![CDATA[Leonor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Coahuila  ]]></institution>
<addr-line><![CDATA[Monclova Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de investigación de materiales avanzados  ]]></institution>
<addr-line><![CDATA[Monterrey Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Coahuila  ]]></institution>
<addr-line><![CDATA[Saltillo Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Centro de investigación de materiales avanzados  ]]></institution>
<addr-line><![CDATA[Chihuahua Chihuahua]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Autónoma de Coahuila Facultad de Metalurgia ]]></institution>
<addr-line><![CDATA[Monclova Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>18</volume>
<numero>37</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-81962024000200102&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-81962024000200102&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-81962024000200102&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Para lograr un concentrado de molibdeno de calidad, es crucial tener una alta ley previa a la flotación. Dado que la ley de cabeza es una variable no controlable, es importante minimizar su impacto negativo. Un análisis mineralógico y granulométrico de la alimentación enriquece al entendimiento y a la mejora del proceso de concentración. Al tener indicios de la presencia de molibdenita tipo 3-R se analiza la vía de preconcentración por conminución, lo que libera este tipo de molibdenita de la pirita por medio del estudio de 4 grupos minerales con distinto tratamiento de liberación. La caracterización se lleva a cabo por difracción y fluorescencia de rayos X. El modelo de conminución que obedece al mineral es de Rosin Rammler. Los resultados muestran una mejora de ley de cabeza del molibdeno de 0.10 % y 3 % de cobre por medio de la separación de pirita del resto mineral.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract To achieve a quality molybdenum concentrate, it is crucial to have a high grade prior to flotation. Since the head grade is an uncontrollable variable, it is important to minimize its negative impact. A mineralogical and granulometric analysis of the feed enhances the understanding and improvement of the concentration process. Given indications of the presence of 3-R type molybdenite, the pre-concentration route through comminution is analyzed, which liberates this type of molybdenite from pyrite by studying 4 mineral groups with a different liberation treatment. The characterization is carried out by X-ray diffraction and fluorescence. The comminution model that fits the mineral is Rosin Rammler. The results show an improvement in molybdenum head grade by 0.10% and 3% copper through the separation of pyrite from the rest of the mineral.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Conminución]]></kwd>
<kwd lng="es"><![CDATA[Concentración]]></kwd>
<kwd lng="es"><![CDATA[Molibdeno]]></kwd>
<kwd lng="es"><![CDATA[Cobre]]></kwd>
<kwd lng="en"><![CDATA[Comminution]]></kwd>
<kwd lng="en"><![CDATA[Concentration]]></kwd>
<kwd lng="en"><![CDATA[Molybdenum]]></kwd>
<kwd lng="en"><![CDATA[Copper]]></kwd>
</kwd-group>
</article-meta>
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