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Soybean epoxide production with in situ peracetic acid using homogeneous catalysis
Producción de epóxido de soya con ácido peracético generado in situ mediante catálisis homogénea
Keywords:
in situ epoxidation, soybean oil, peracetic acid, hydrogen peroxide, sulphuric acid, oxyrane oxygen content (en)epoxidación in situ, aceite de soya, ácido peracético, peróxido de hidrógeno, ácido sulfúrico, contenido de oxígeno oxirano (es)
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Using vegetable oils has become an excellent option for petrochemical product substitution. The epoxides obtained from such oils have wide applications as plastifiers and PVC stabilisers and as raw material in polyol synthesis for the polyurethane industry. This paper presents soybean oil epoxidation using a homogeneous catalyst in a well-mixed, stirred reactor being operated in isothermal conditions. The best result achieved was a 6.4% oxyrane oxygen content using hydrogen peroxide (25% molar excess), acetic acid (5% p/p) and sulphuric acid (2% p/p) concentrations at 80°C.
El uso de aceites vegetales se ha convertido en una excelente alternativa para la sustitución de productos de origen petroquímico. Los epóxidos obtenidos a partir de estos aceites se utilizan ampliamente como plastificantes y estabilizantes del PVC y como materia prima en la síntesis de polioles para la industria del poliuretano. Este trabajo presenta la obtención del epóxido de soya utilizando un catalizador homogéneo en un reactor agitado mecánicamente, a condiciones isotérmicas. Se obtiene como mejor resultado un contenido máximo de oxígeno oxirano de 6,4 %, usando concentraciones de peróxido de hidrógeno (25% de exceso molar), ácido acético (5% p/p) y ácido sulfúrico (2% p/p) a 80°C.
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Copyright (c) 2010 Luis Alejandro Boyacá Mendivelso, Ángela Aurora Beltrán
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