<?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>S2224-61852023000100121</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Remoción de níquel del sistema Ni(II)-NH3-CO2-SO2-H2O por electrocoagulación a escala de banco. Parte II]]></article-title>
<article-title xml:lang="en"><![CDATA[Nickel removing of the system Ni(II)-NH3-CO2-SO2-H2O by electrocoagulation on an bank scale. Part II]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Vargas]]></surname>
<given-names><![CDATA[Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Magaña-Haynes]]></surname>
<given-names><![CDATA[María Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Toro-Alvarez]]></surname>
<given-names><![CDATA[Dania Del]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Guillen]]></surname>
<given-names><![CDATA[Crispín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Empresa de Servicios Técnicos de Computación, Comunicaciones y Electrónica del Níquel (SERCONI)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Investigaciones del Níquel (CEDINIQ)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Oriente Facultad de Ingeniería Química-Agronomía ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<volume>43</volume>
<numero>1</numero>
<fpage>121</fpage>
<lpage>137</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-61852023000100121&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-61852023000100121&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-61852023000100121&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se estudió la remoción de níquel del sistema Ni(II)-NH3-CO2-SO2-H2O por electrocoagulación en un reactor cilíndrico con agitación de 25 L de capacidad útil y dos pares de electrodos Al/Al. Se procesó licor efluente del proceso de destilación de la planta productora de níquel en Punta Gorda, Cuba, con una concentración de níquel de 300 a 652 mg/L, a una densidad de corriente de 8,3 mA/cm2, 60 ºC y pH 8,64 (+/-0,033). Se obtuvo una eficiencia de remoción promedio de 99,65 (+/-0,07) %, concentración en equilibrio menor que 2 mg/Ly capacidad de adsorción entre 3342 y 7264 mg/g. De acuerdo al análisis cinético y de equilibrio, se considera que el proceso está probablemente bajo el control de la resistencia de los mecanismos reacción química y su contribución autocatalítica. El costo de operación por consumo de energía eléctrica y de electrodo fue 11,12 y 16,02 CUP/kg de Ni y el consumo específico de energía de 1,709 a 2,342 kW-h/kg de Al.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The nickel removal of the system Ni(II)-NH3-CO2-SO2-H2O was studied by electrocoagulation in a cylindrical reactor with agitation, of 25 L of useful capacity and two pair of Al/Al electrodes. Effluentliquor from the distillation process of the nickel-producer plant in Punta Gorda, Cuba, was processed with nickel concentration from 300 to 652 mg/L, at a current density of 8,3 mA/cm2, 60 ºC and pH 8,64 (+/-0,033). An average removal efficiency of 99,65 (+/-0,07) % was obtained, an equilibrium concentration less than 2 mg/L and an adsorption capacity between 3342 and 7264 mg/g. According to the kinetic and equilibrium analysis, it is considered that the process is probably under the control of the resistance of the chemical reaction mechanisms and its autocatalytic contribution. The operation costs for electrical energyand electrode consumption were between 11,122 y 16,022 CUP/kg of removed nickel and the specific energy consumption of 1,709 to 2,342 kW-h/kg of Al.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[adsorción]]></kwd>
<kwd lng="es"><![CDATA[cinética]]></kwd>
<kwd lng="es"><![CDATA[electrocoagulación]]></kwd>
<kwd lng="es"><![CDATA[níquel]]></kwd>
<kwd lng="en"><![CDATA[adsorption]]></kwd>
<kwd lng="en"><![CDATA[kinetic]]></kwd>
<kwd lng="en"><![CDATA[electrocoagulation]]></kwd>
<kwd lng="en"><![CDATA[nickel]]></kwd>
</kwd-group>
</article-meta>
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