Chemical reaction - pervaporation hybrid process and its application to transesterification of methyl acetate with n-butanol
für 45.80€ kaufen ··· 9783844001907 ··· 10361107301 ··· Methyl acetate is a by-product during the production of poly(vinyl)alcohol (PVA). Per ton of PVA 1.68 tons of methyl acetate are produced. 1 Since methyl acetate is of limited industrial importance and methanol is a feedstock for PVA synthesis, the most attractive way would be to convert methyl acetate into methanol and n-butyl acetate, since n-butyl acetate is an important solvent for plastics, resins, gums and coatings. n-Butyl acetate can also be used as extracting agent, intermediate in organic synthesis or in the photographic industry. 2 One of the possibilities to obtain the desired products would be the transesterification of methyl acetate with n-butanol, which leads to n-butyl acetate and methanol. Due to the two binary maximum pressure azeotropes, 3 namely methanol - methyl acetate and n-butanol - n-butyl acetate, a conventional process with reaction followed by separation would cause a huge separation effort. Additionally, the low chemical equilibrium constant (close to unity) would result in low conversion and high capital costs. An alternative would be the application of reactive distillation or the combination of the reaction step with a membrane-separation process, e.g. pervaporation, to separate the reaction products from the reactants and therefore overcome the azeotropes and chemical equilibrium limitations. Besides kinetic information for the chemical reaction, reliable information about the heat and mass-transfer, the vapor-liquid equilibrium behavior, the various pure component properties and chemical equilibrium is required. To describe the pervaporation process the separation properties of the applied membrane like flux, separation factor or enrichment factor are needed. Hersteller: Shaker Verlag Marke: Shaker Verlag EAN: 9783844001907 Kat: Hardcover/Naturwissenschaften, Medizin, Informatik, Technik/Technik/Chemische Technik Lieferzeit: Sofort lieferbar Versandkosten: Ab 20¤ Versandkostenfrei in Deutschland Icon: https://www.inforius-bilder.de/bild/?I=rc5Wehms8Egst1N8wmooRCjj%2F2gNTid38jLe9VeeDug%3D Bild:
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