<?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>2224-6185</journal-id>
<journal-title><![CDATA[Tecnología Química]]></journal-title>
<abbrev-journal-title><![CDATA[RTQ]]></abbrev-journal-title>
<issn>2224-6185</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-61852020000300627</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Transformaciones físico-químicas de productos de corrosión el hierro en instalaciones petroleras]]></article-title>
<article-title xml:lang="en"><![CDATA[Physical-chemical transformations of iron corrosion products in oil facilities]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Adames-Montero]]></surname>
<given-names><![CDATA[Yosmari]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Guerra]]></surname>
<given-names><![CDATA[Silio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marrero-Águila]]></surname>
<given-names><![CDATA[Rigoberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cueli-Corugedo]]></surname>
<given-names><![CDATA[Alexander]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Davis- Harriett]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigación del Petróleo (CEINPET)  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Tecnológica de La Habana José A. Echeverría (Cujae) Facultad de Ingeniería Química ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>40</volume>
<numero>3</numero>
<fpage>627</fpage>
<lpage>639</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-61852020000300627&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-61852020000300627&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-61852020000300627&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El material de construcción principal de las instalaciones petroleras es el acero al carbono. Su exposición en medios como la atmósfera, las aguas u otros, provoca afectaciones notables debido al fenómeno de la corrosión. En la investigación que se presenta se estudiaron los productos de corrosión generados durante el proceso de corrosión atmosférica en una batería de tratamiento de petróleo. El intervalo de tiempo que se seleccionó para el estudio fue de un año, realizando evaluaciones a partir del primer mes de exposición. Los objetivos que se plantean en el trabajo son: determinar las propiedades físico-químicas de las fases mediante técnicas de caracterización de productos sólidos; utilizar resultados de FTIR (espectroscopía infrarroja), DRX (difracción de rayos X) de los productos de corrosión para obtener propiedades sortométricas y porosimétricas de las fases sólidas. La lepidocrocita (&#947;-FeOOH) y la goethita (&#945;-FeOOH) pertenecen al sistema cristalográfico ortorrómbico, de grupo puntual: 2/m 2/m 2/m y la magnetita (Fe3O4) se identificó con el sistema isométrico. El tamaño de cristalitas de las fases se obtuvo según el área bajo el pico de mayor intensidad de DRX: 10 Å, 9 Å y 8 Å (&#947;-FeOOH, &#945;-FeOOH y Fe3O4, respectivamente). La fase de menor dimensión de partícula perteneció a la Fe3O4, que mostró mayor reactividad físico-química porque le correspondió el área superficial superior (39 m2/g). Los efectos de transformación del hierro en las tres variedades presentaron entalpías positivas. El componente del desorden, generó cambios en la naturaleza de las fases. Los mecanismos de transformaciones respondieron a: ]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The main construction material of oil facilities is carbon steel. The exposition in some media such as atmosphere, waters or others, cause notable affectations due to the corrosion phenomenon. In the investigation, a study of corrosion products that were generated during the atmospheric corrosion process, were carried out in an oil treatment battery. The time interval selected for the study was one year, making evaluations since the first month of exposition. The objectives of this study are to determine physic-chemical properties of phases, by means of solid product characterization techniques, using FTIR (infrared spectroscopy) and XRD (X-ray diffraction) of the corrosion products to obtain the sortometric and porosimetric properties of the solid phases. The lepidocrocite (&#947;-FeOOH) claim to the orthorhombic crystallographic system, of punctual groups: 2 / m 2 / m 2 / m and magnetite (Fe3O4) was identified with the isometric system. The crystallines sizes were obtained by the area .of the high intensity DRX peak: 10 Å, 9 Å and 8 Å (&#947;-FeOOH, &#945;-FeOOH and Fe3O4 respectively). The phase of smaller particle size belonged to the Fe3O4, which showed greater physical-chemical reactivity because it presented the upper surface area (39 m2 / g). The iron transformation effects in the three varieties presented positive enthalpies. The disorder component generated changes in the nature phases. The transformation mechanisms responded to: ]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[acero]]></kwd>
<kwd lng="es"><![CDATA[corrosión atmosférica]]></kwd>
<kwd lng="es"><![CDATA[productos de corrosión]]></kwd>
<kwd lng="es"><![CDATA[propiedades físico-químicas]]></kwd>
<kwd lng="en"><![CDATA[steel]]></kwd>
<kwd lng="en"><![CDATA[atmospheric corrosion]]></kwd>
<kwd lng="en"><![CDATA[corrosion products]]></kwd>
<kwd lng="en"><![CDATA[chemical-physic properties]]></kwd>
</kwd-group>
</article-meta>
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