LACAS Y SELLADORES PARA MADERA A PARTIR DE RESINAS ALQUÍLICAS OBTENIDAS DE ACEITES DE HIGUERILLA, PALMA y USADOS DE FRITURA

Ocampo, David; Aguirre, Elkin D; Osorio, Alexander; Ríos, Luis

doi:10.4067/s0718-07642014000200018

Cited by 2 publications

(2 citation statements)

References 10 publications

(9 reference statements)

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“…Otras industrias como la de recubrimientos y polímeros tienen como base fundamental la síntesis de resinas alquídicas a partir de monoglicéridos, utilizando aceites vegetales Ocampo et al, 2014) y catalizadores con Li y Pb, elementos restringidos en muchos países por su toxicidad.…”

Section: Introductionunclassified

Síntesis y Caracterización de Catalizadores tipo Hidrotalcita Dopados con Fe³+ para la Producción de Monoglicéridos y Diglicéridos de Aceite de Soya

2015

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ResumenEn este trabajo se sintetizaron hidrotalcitas sustituidas con Fe +3 con diferentes porcentajes de hierro. Los compuestos fueron calcinados y empleados en la producción de monoglicéridos y diglicéridos a 230ºC y usando una relación molar 1:5 de aceite de soya/glicerol. Los catalizadores fueron caracterizados por difracción de rayos-X (XRD), fluorescencia de rayos-X (XRF), análisis gravimétrico (TGA) y desorción con temperatura programada (TPD). El rendimiento de los productos fue determinado mediante cromatografía de gases con detecto de ionización de llama (CG-FID). Adicionalmente, se evaluó la misma reacción utilizando hidrotalcitas sin sustituir. La caracterización de los catalizadores revelo diferencias estructurales y químicas entre las hidrotalcitas sustituidas y sin sustituir. Los compuestos sustituidos con Fe 3+ presentaron mejores rendimientos en la producción de glicéridos que los no sustituidos pero menor selectividad hacia los monoglicéridos. Palabras clave: hidrotalcita, monoglicéridos, catalizadores básicos, glicerólisis Synthesis and Characterization of Hydrotalcite Catalysts Doped with Fe 3+ for the Production of Monoglycerides and Diglycerides of Soybean Oil AbstractHydrotalcites substituted with Fe +3 at different iron percentages were synthesized. The catalysts were calcined and used in the production of monoglycerides and diglycerides at 230 °C and with a 1:5 molar ratio of soybean oil to glycerol. Catalysts were characterized by x-ray diffraction (XRD), x-ray fluorescence (XRF), gravimetric analysis (TGA) and temperature-programmed desorption (TPD). The product yield was determined by Gas Chromatography with Flame Ionization Detector (GC-FID). Additionally, the same reaction was performed using unsubstituted hydrotalcites. The characterization revealed structural and chemical differences between substituted and unsubstituted hydrotalcites. Substituted hydrotalcites showed better yields in the production of glycerides that unsubstituted hydrotalcites but lower selectivity towards monoglycerides.

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Section: Introductionunclassified

Síntesis y Caracterización de Catalizadores tipo Hidrotalcita Dopados con Fe³+ para la Producción de Monoglicéridos y Diglicéridos de Aceite de Soya

2015

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“…When used as material in new production chains, WCO can generate several products including soap and other biomaterials: printing ink, candles, crayons and playdough [33][34][35][36]. It can also be used to make biodiesel [37], with a WCO-to-biodiesel conversion rate of 98% via transesterification [38].…”

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A Voluntary Delivery Point in Reverse Supply Chain for Waste Cooking Oil: An Action Plan for Participation of a Public-School in the State of Rio De Janeiro, Brazil

et al. 2018

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Improper disposal of waste cooking oil into sewer systems is harmful to the environment. Through the selective collection, this highly polluting residue can be handled in a less harmful way. The present study presents an action plan for a public school in the Region of Médio Paraíba Fluminense of the state of Rio de Janeiro, Brazil to serve as a voluntary delivery point in a reverse logistics chain for waste cooking oil. A case study method with semi-structured interviews was carried out with agents who are part of the chain, including the government, commercial residue generators, collectors, the biodiesel production industry, the community, and teachers and students of the public school. Even though the reverse supply chain for waste cooking oil in the region lacks structure, this study showed that the actors were interested in correctly disposing of waste cooking oil through partnerships and agreements. In addition to the environmental benefits, environmental education actions in public schools, such as the one in this study, can help raise student awareness of issues relative to citizenship and social responsibility and promote employment and income opportunities for recyclable material collector cooperatives and industries that use waste cooking oil as raw material.

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LACAS Y SELLADORES PARA MADERA A PARTIR DE RESINAS ALQUÍLICAS OBTENIDAS DE ACEITES DE HIGUERILLA, PALMA y USADOS DE FRITURA

Cited by 2 publications

References 10 publications

Síntesis y Caracterización de Catalizadores tipo Hidrotalcita Dopados con Fe³+ para la Producción de Monoglicéridos y Diglicéridos de Aceite de Soya

Síntesis y Caracterización de Catalizadores tipo Hidrotalcita Dopados con Fe³+ para la Producción de Monoglicéridos y Diglicéridos de Aceite de Soya

A Voluntary Delivery Point in Reverse Supply Chain for Waste Cooking Oil: An Action Plan for Participation of a Public-School in the State of Rio De Janeiro, Brazil

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