Oxypropylation of Rapeseed Cake Residue Generated in the Biodiesel Production Process

Serrano, Luis; Gonzalez Alriols, Maria; Briones, Rodrigo; Mondragon, Inaki; Labidi, Jalel

Abstract

The oxypropylation of rapeseed cake residue generated in the biodiesel production process was studied. The reaction was carried Out by suspending the rapeseed cake residue in propylene oxide [30/70 ratio (w/v)] in the presence of a basic catalyst (10% KOH) and heating the resulting mixture at 160 degrees C in a nitrogen atmosphere. The chemical structure of the obtained polyol was studied by CHNS elemental analysis, infrared spectroscopy, and H-1 NMR spectroscopy, and other parameters such as viscosity, OH number, molecular weight (GPC), and thermal behavior (DSC, TGA) were also measured. The obtained results showed an almost total conversion of the solid substrate into a polyol with good characteristics (OH number, 610 mg of KOH/g; viscosity, 84.23 Pa center dot s; and molecular weight, 33550 g/mol) for use in polyurethane, polyether, or polyester formulations.

Más información

Título según WOS: ID WOS:000274342500010 Not found in local WOS DB
Título de la Revista: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volumen: 49
Número: 4
Editorial: AMER CHEMICAL SOC
Fecha de publicación: 2010
Página de inicio: 1526
Página final: 1529
DOI:

10.1021/ie9016732

Notas: ISI