Experimentation and thermodynamic representations of binaries containing compounds of low boiling points: pentane and alkyl methanoates

[EN]This work presents experimental mixing properties, hEand vE, at several temperatures and the iso-baric vapor–liquid equilibria (iso-p VLE) at 101.32 kPa for four binaries containing pentane and four alkyl(methyl to butyl) methanoates. Particular conditions are established to work with these solutions withhighly volatile compounds, especially for the case of methyl methanoate + pentane system, for whicha continuous feeding device is designed and constructed for measuring the densities.

Improvements in the experimentation and the representation of thermodynamic properties (iso-p VLE and y) of alkyl propanoate+alkane binaries

[EN]This paper presents the experimental measurements of isobaric vapor−liquid equilibria (iso-p VLE) and excess volumes (vE) at several temperatures in the interval (288.15 to 328.15) K for six binary systems composed of two alkyl (methyl, ethyl) propanoates and three odd carbon alkanes (C5 to C9). The mixing processes were expansive, vE > 0, with (δvE/δT)p > 0, and endothermic. The installation used to measure the iso-p VLE was improved by controlling three of the variables involved in the experimentation with a PC.

Description of the behavior of dichloroalkanes-containing solutions with three [bXmpy][4] isomer, using the experimental information of thermodynamic properties, 1H-NMR spectral and the COSMO-RS methodology

[EN]This work studies the binaries of 1-butyl-X-methylpyridinium tetrafluoroborate [bXmpy][BF4] (X = 2, 3, and 4) with four 1,ω-dichloroalkanes, ω = 1−4, using the results obtained for the mixing properties hE and v E at two temperatures. The three isomers of the ionic liquid (IL) are weakly miscible with the 1,ω-dichloroalkanes when ω ≥ 5 and moderately soluble for ω = 4. The vE s of all the binaries present contractive effects, v E < 0, which are more pronounced with increasing temperature; the variation in vE with ω is positive, although this changes after ω = 4 due to problems of immiscibility

Mixing properties of ester-containing solutions: a study on the ternary (methyl alkanoate (pentanoate and methanoate)+methanol and the corresponding binaries. New contributions to the (ester+ester) interactions

[EN]This work studies the volumetric (VE m) and energetic (HE m) properties resulting from the mixing processes of binary systems and the corresponding ternary of two methyl esters (methanoate and pentanoate) with methanol. The three binaries produce net endothermic mixing effects, with important energetic interactions, with maximum values of HE m ffi 400 J mol 1 , for the (ester + ester) system. This produces expansive effects VE m > 0, but the binaries of the (methyl esters + methanol) give rise to contractions VE m < 0, due to the formation of molecular aggregates.

Solutions of alkyl methanoates and alkanes: Simultaneous modeling of phase equilibria and mixing properties. Estimation of behavior by UNIFAC with recalculation of parameters.

[EN]Isobaric vapor–liquid equilibria at p = 101.32 kPa (iso-p VLE) and the mixing properties, hE and vE, are determined for a set of twelve binary solutions: HCOOCuH2u+1(1)+CnH2n+2(2) with u = (1–4) and n = (7– 9). The (iso-p VLE) present deviations from the ideal behavior, which augment as u diminishes and n increases. Systems with [u = 2,3 n = 7] and [u =4 , n = 7,8] present a minimum-boiling azeotrope. The nonideality is also reflected in high endothermic values, hE > 0, and expansive effects, vE > 0, for all the binaries, which increase regularly with n

La radiación como factor determinante en la temperatura interior de los edificios en Canarias

Máster Universitario en Eficiencia Energética (SIANI)

X Congreso de Estudiantes de Derecho

Conferencias del X Congreso Nacional de Estudiantes de Derecho, celebrado los días 10 al 12 de abril de 2016 en el Salón de Grados de la Facultad de Ciencias Jurídicas de la ULPGC, organizado por la Delegación de Alumnos de la Facultad de Ciencias Jurídicas de la ULPGC y por el Comité Nacional de Estudiantes de Derecho (CONEDE). ACTO INAUGURAL del X CONGRESO, a cargo de Carolina Darias San Sebastián, Presidenta del Parlamento de Canrais; José Regidor García, Rector Magnífico de la de la ULPGC; Ángel Tristán Pimienta, Presidente del Consejo Social de la ULPGC ; Pablo Saavedra Gallo, Decano de la Facultad de Ciencias Jurídicas de la ULPGC; Alejandro Soto, Presidente del CONEDE ; Eliezer Santa Sánchez, Presidente del Comité Organizador del Congreso y Martín J. Marrero Pérez, Director de Comunicación del Grupo Ralons MESA REDONDA. SISTEMA ELECTORAL CANARIO, con la intervención de Cristina Tavío Ascanio, Vicepresidenta Segunda del Parlamento de Canarias; Miguel Montero Naranjo, Consejero de Área de Educación y Juventud del Cabildo de Gran Canaria; Gerardo Pérez Sánchez, Profesor Asociado de Derecho Constitucional de la Universidad de La Laguna (ULL) y Carlos Carrión Marrero, miembro de la Delegación de Estudiantes de la Facultad de Ciencias Jurídicas de la ULPGC (moderador) LECCIÓN MAGISTRAL. LA RESPONSABILIDAD PENAL DE LAS PERSONAS JURÍDICAS. ASPECTOS MATERIALES Y PROCESALES, a cargo de José Ramón Navarro Miranda, Presidente de la Audiencia Nacional. MESA REDONDA. LA LEY DE ENJUICIAMIENTO CRIMINAL,con la intervención de Guillermo García-Panasco Morales, Fiscal Jefe Provincial de Las Palmas; Rosa Rodríguez Bahamonde, Profesora Titular de Derecho Procesal de la ULPGC; Manuel Jaén Vallejo, Asesor del Ministerio de Justicia y Ana Hidalgo Jodar, alumna de la Facultad de Ciencias Jurídicas de la ULPGC. (moderadora) MESA REDONDA. DERECHO EUROPEO,con la intervención de Juan Fernando López Aguilar, Catedrático de Derecho Constitucional de la ULPGC y eurodiputado; Rogelio Pérez Bustamante, Catedrático de Historia del Derecho y Catedrático Jean Monnet de la Universidad Rey Juan Carlos ; Nicolás Navarro Batista, Profesor Titular de Derecho Internacional Público y Relaciones Internacionales de la ULPGC y Raúl Cabrera Santana, alumno de la Facultad de Ciencias Jurídicas de la ULPGC (moderador)

Las garantías jurídicas de los usuarios del comercio electrónico

Programa de doctorado: Estatuto jurídico del acusado: derechos y obligaciones de los sujetos sospechosos de un hecho delictivo sin que exista resolución juducial de inculpación.

La grasa en la anatomía artística: importancia de la grasa como elemento configurador

Programa de doctorado: Procesos creativos en las artes del siglo XX