<?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>S1993-80122020000300316</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto del petróleo aditivo en los indicadores energo-tecnológicos en los circuitos cerrados de molienda del mineral laterítico a nivel industrial]]></article-title>
<article-title xml:lang="en"><![CDATA[Effect of additive oil on energy-technological indicators in closed-grinding circuits for laterite ore on industrial level]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Coello-Velázquez]]></surname>
<given-names><![CDATA[Alfredo Lázaro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Llorente-Arce]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[Alexis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Moa  ]]></institution>
<addr-line><![CDATA[ Holguín]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Empresa Comandante Ernesto Che Guevara  ]]></institution>
<addr-line><![CDATA[Moa Holguín]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<volume>36</volume>
<numero>3</numero>
<fpage>316</fpage>
<lpage>327</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1993-80122020000300316&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1993-80122020000300316&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1993-80122020000300316&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La decisión de adicionar petróleo en la alimentación de los molinos de mineral laterítico en la fábrica niquelera Ernesto Che Guevara guarda relación con la necesidad de reducir los costos de producción. El propósito de este estudio fue evaluar el efecto de esta variable en los indicadores energo-tecnológicos de la molienda. Se realizaron dos series de ensayos: la primera, para obtener las regularidades de la influencia del petróleo aditivo en las clases granulométricas de +0,149 mm y -0,074 mm en el producto de la molienda. La segunda serie evaluó la influencia del petróleo aditivo en la producción del molino y su consumo energético. Se pudo establecer que la adición de petróleo crudo trae consigo el incremento de la clase + 0,149 mm en el producto de la molienda. La clase -0,074 mm se incrementa con un punto de inflexión en el consumo de petróleo aditivo de 4 %. El incremento del porcentaje de adición de petróleo crudo aumenta la cantidad de material adherido a las bolas y las paredes del molino. Las pruebas industriales muestran que la adición del petróleo crudo disminuye la productividad del molino en 12 % e incrementa el consumo energético en 6,26 kWh/t.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The decision of adding oil to the feed of lateritic ore mills at Ernesto Che Guevara nickel factory is related to the need of reducing production costs. The purpose of this study is to evaluate the effect of this variable on the energy-technological indicators of milling. Two series of tests were carried out: the first, to obtain the regularities of the influence of the additive oil in the particle size classes of +0.149 mm and -0.074 mm in the product of the milling. The second series evaluated the influence of additive oil on the mill's production and its energy consumption. It could be established that the addition of crude oil brings about an increase of the class + 0.149 mm in the milling product.-0.074 mm class is increased with a turning point in the additive oil consumption of 4%. Percentage increasing of crude oil addition steps up the amount of material adhering to the balls and mill walls. Industrial tests show that the addition of crude oil decreases mill productivity by 12% and increases energy consumption by 6.26 kWh / t.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[petróleo aditivo]]></kwd>
<kwd lng="es"><![CDATA[producción de níquel]]></kwd>
<kwd lng="es"><![CDATA[molino de bolas]]></kwd>
<kwd lng="es"><![CDATA[mineral laterítico]]></kwd>
<kwd lng="es"><![CDATA[indicadores energéticos]]></kwd>
<kwd lng="en"><![CDATA[additive oil]]></kwd>
<kwd lng="en"><![CDATA[nickel production]]></kwd>
<kwd lng="en"><![CDATA[ball mill]]></kwd>
<kwd lng="en"><![CDATA[lateritic mineral]]></kwd>
<kwd lng="en"><![CDATA[energy indicators]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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