<?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>0120-6230</journal-id>
<journal-title><![CDATA[Revista Facultad de Ingeniería Universidad de Antioquia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.fac.ing.univ. Antioquia]]></abbrev-journal-title>
<issn>0120-6230</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ingeniería, Universidad de Antioquia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-62302024000300078</article-id>
<article-id pub-id-type="doi">10.17533/udea.redin.20240101</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Commercial turpentine oil enriched with &#945;-terpineol using an acid heterogeneous catalyst]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguas-Caballero]]></surname>
<given-names><![CDATA[Iván de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villa-Holguín]]></surname>
<given-names><![CDATA[Aída Luz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alarcón-Durango]]></surname>
<given-names><![CDATA[Edwin Alexis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Antioquia Facultad de Ingeniería Departamento de Ingeniería Química]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2024</year>
</pub-date>
<numero>112</numero>
<fpage>78</fpage>
<lpage>85</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-62302024000300078&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-62302024000300078&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-62302024000300078&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se estudió la hidratación de &#945;-pineno, limoneno, &#946;-pineno y aceite de trementina comercial en presencia de la resina de intercambio catiónico fuertemente ácida Amberlyst-15. La hidratación catalítica ácida se realizó en un reactor por lotes, evaluándose el efecto del solvente a varias temperaturas y tiempos de reacción. El principal producto de hidratación del &#945;-pineno fue &#945;-terpineol con un rendimiento de 36 % (4 h, 70°C, 2-propanol como solvente); sin embargo, el sistema catalítico seleccionado fue aún más activo a &#945;-terpineol cuando se usó &#946;-pineno como substrato, obteniendo rendimiento a &#945;-terpineol de 38 % en 2 h de reacción. Para la hidratación de trementina (70 °C, relaciones másicas de trementina:agua:2-propanol de 1:0.5:2, 15 %p/p catalizador) la composición de la mezcla de reacción después de 4 h fue 35 %p/p &#945;-terpineol, 8 %p/p &#945;-pineno y 0.5 %p/p de &#946; -pineno; que corresponde al contenido final de &#945;-terpineol cuando &#945;-pineno se empleó como sustrato (36 %p/p).]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The hydration of &#945;-pinene, limonene, &#946;-pinene, and commercial turpentine oil in the presence of strong acidic cation exchange resin Amberlyst-15 was studied. The acid catalytic hydration was performed in a batch reactor, and the effect of solvent at various temperatures and reaction times was evaluated. The main hydration product obtained from &#945;-pinene was &#945;-terpineol with a yield of 36 % (4 h, 70 °C, 2-propanol as solvent); however, the selected catalytic system was even more active to obtain &#945;-terpineol when &#946;-pinene was used as a substrate, obtaining &#945;-terpineol yield of 38 % in 2 h of reaction. For the hydration of turpentine (70 °C, turpentine:water:2-propanol mass ratio of 1:0.5:2, 15 % w/w catalyst) the composition of reaction mixture after 4 h was 35 % w/w of &#945;-terpineol, 8 % w/w of &#945;-pinene, and 0.5 % w/w of &#946; -pinene, which correspond to a final content of &#945;-terpineol similar to the concentration obtained when &#945;-pinene was used as a substrate (36 % w/w).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[hydration]]></kwd>
<kwd lng="en"><![CDATA[turpentine]]></kwd>
<kwd lng="en"><![CDATA[&#945;-terpineol]]></kwd>
<kwd lng="en"><![CDATA[&#945;-pinene]]></kwd>
<kwd lng="en"><![CDATA[Amberlyst-15]]></kwd>
<kwd lng="es"><![CDATA[Hidratación]]></kwd>
<kwd lng="es"><![CDATA[trementina]]></kwd>
<kwd lng="es"><![CDATA[&#945;-terpineol]]></kwd>
<kwd lng="es"><![CDATA[&#945;-pineno]]></kwd>
<kwd lng="es"><![CDATA[Amberlyst-15]]></kwd>
</kwd-group>
</article-meta>
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