Publication: Purificación de ciclohexanona obtenida en la oxidación de ciclohexano para la fabricación de caprolactama
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2017-11-28
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Universidad Complutense de Madrid
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Abstract
La importancia que tienen las impurezas en el proceso de producción de Nylon 6 hace que las empresas productoras de esta poliamida sean cada vez más exigentes en la calidad de la materias primas, en este caso la caprolactama, empleada como monómero. Empresas líderes en el sector de producción de Nylon 6 y/o sus precursores invierten muchos recursos en proyectos de desarrollo que les ayuden a entender la generación y la repercusión de estas impurezas y a diseñar estrategias que les permitan reducir su formación, o favorecer su eliminación, en las etapas de obtención del monómero de la poliamida. Estas etapas son numerosas y van desde el tratamiento de la materia prima del petróleo (generalmente benceno) hasta la obtención de la poliamida en su forma final para su comercialización. Una de las etapas clave en este proceso es la obtención de la ciclohexanona, precursor de la caprolactama. Partiendo de la información en la literatura (escasa por el carácter industrial de este proceso y su confidencialidad implícita) y de la experiencia del grupo INPROQUIMA en el que se ha realizado esta Tesis Doctoral, se ha establecido como objetivo el diseño de la etapa de purificación de la ciclohexanona, por la importancia que algunas de las impurezas presentes en la cetona tienen en la calidad del producto final...
The effect of the impurities on the production process of Nylon 6 is making that companies, which produce this polyamide, demand an improvement of the quality of caprolactam, which is used as the monomer. Leading companies in the production sector of Nylon 6 and / or its precursors are currently investing many resources to develop projects that help production sector to understand the origin and the repercussion of those impurities, and to design strategies that allow them to reduce their formation or to promote their elimination. Several stages are involved from raw material (usually benzene) until the polyamide production for its commercialization. One of the most important steps of this process is the production of cyclohexanone, precursor of caprolactam. Based on avaible information in the literature (limited by process confidentiality) and the experience of INPROQUIMA crew, in which this Doctoral Thesis has been carried out. The goal of this work was set as the design of the purification stage of cyclohexanone, due to importance of some of the impurities, which can appear along with the ketone, in the quality of the final product...
The effect of the impurities on the production process of Nylon 6 is making that companies, which produce this polyamide, demand an improvement of the quality of caprolactam, which is used as the monomer. Leading companies in the production sector of Nylon 6 and / or its precursors are currently investing many resources to develop projects that help production sector to understand the origin and the repercussion of those impurities, and to design strategies that allow them to reduce their formation or to promote their elimination. Several stages are involved from raw material (usually benzene) until the polyamide production for its commercialization. One of the most important steps of this process is the production of cyclohexanone, precursor of caprolactam. Based on avaible information in the literature (limited by process confidentiality) and the experience of INPROQUIMA crew, in which this Doctoral Thesis has been carried out. The goal of this work was set as the design of the purification stage of cyclohexanone, due to importance of some of the impurities, which can appear along with the ketone, in the quality of the final product...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Químicas, Departamento de Ingeniería Química, leída el 23-05-2017