Obtenção de álcool alílico (PROP-2-EN-1-OL) a partir da glicerina derivada do biodiesel de óleo de mamona

In this work, biodiesel was produced from castor oil that was a byproduct glycerin. The molar ratio between oil and alcohol, as well as the use of (KOH) catalyst to provide the chemical reaction is based on literature. The best results were obtained using 1 mol of castor oil (260g) to 3 moles of methyl alcohol (138g), using 1.0% KOH as catalyst at a temperature of 260 ° C and shaken at 120 rpm. The oil used was commercially available, the process involves the reaction of transesterification of a vegetable oil with methyl alcohol. The product of this reaction is an ester, biodiesel being the main product and the glycerin by-product which has undergone treatment for use as raw material for the production of allyl alcohol. The great advantage of the use of glycerin to obtain allyl alcohol is that its use eliminates the large amount of waste of the biodiesel and various forms of insult to the environment. The reactions for the formation of allyl alcohol was conducted from formic acid and glycerin in a ratio 1/1, at a temperature of 260oC in a heater blanket, being sprayed by a spiral condenser for a period of 2 hours and the product obtained contains mostly the allylic alcohol .. The monitoring of reactions was performed by UV-Visible Spectrophotometer: FTIR Fourier transform, the analysis showed that these changes occur spectrometer indicating the formation of the product allylic alcohol (prop-2-en-1-ol) in the presence of water, This alcohol was appointed Alcohol GL. The absorption bands confirms that the reaction was observed in (υ C = C) 1470 -1600 cm -1 and (υ CO), 3610-3670 attributed to C = C groups and OH respectively. The thermal analysis was carried out in a thermogravimetric analyzer SDT Q600, where the mass and temperature are displayed against time, that allows checking the approximate rate of heating. The innovative methodology developed in the laboratory (LABTAM, UFRN), was able to treat the glycerine produced by transesterification of castor oil and used as raw material for production of allyl alcohol, with a yield of 80%, of alcohol, the same is of great importance in the manufacture of polymers, pharmaceuticals, organic compounds, herbicides, pesticides and other chemicals

Reseña del libro : Memorias del BIM : Biografías. Las víctimas de la Fuerza de Tareas 5 en La Plata, Berisso y Ensenada de Ana Julia Ramírez y Margarita Merbilhaá (editoras)

Fil: Codaro, Laura. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Reseña del libro : Memorias del BIM : Biografías. Las víctimas de la Fuerza de Tareas 5 en La Plata, Berisso y Ensenada de Ana Julia Ramírez y Margarita Merbilhaá (editoras)

Fil: Codaro, Laura. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Reseña del libro : Memorias del BIM : Biografías. Las víctimas de la Fuerza de Tareas 5 en La Plata, Berisso y Ensenada de Ana Julia Ramírez y Margarita Merbilhaá (editoras)

Fil: Codaro, Laura. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Moleculare composition of sediments from ODP Hole 116-717C

We describe the molecular composition of a portion of the solvent-soluble organic material (lipid extract), from three organic rich muds (samples 116-717C-22X-1, 80-86 cm, 116-717C-34X-3, 130-135 cm, and 116-717C-55X-1, 65-70 cm). These samples were taken from Hole 717C, located on the Bengal Fan at a position of 0°55.8'S and 81°23.4'E. Both the palaeoenvironmental and digenetic significance of these lipid distributions have been assessed and found to be consistent with their suspected origins, i.e., turbidites from the upper slope of the western Bay of Bengal and the Ganges-Brahmaputra delta.

Romanç dels sopars d'en Baena, que el vate Gaspar Jaén i Urban va recitar a Elx l'any del senyor de 1984, per al sopar d'en Baena núm. 5, en quaresma, en març i en primavera

En este romance festivo se celebran los "sopars d'en Baena", unas reuniones mensuales que se celebraban en Elche en los primeros años ochenta con un carácter lúdico y festivo, en una época de gran efervescencia cultural y social en toda España.