Isolation of 1,2-epoxybutane-3-ol and 2,3-epoxybutane-1-ol from post-reaction mixtures

• Autorzy: Wróblewska A. , Wajzberg-Prokowska J. , Ławro E. , Milchert E.
• Języki publikacji: EN

Abstrakty

EN

Attempts were made to isolate 1,2-epoxybutane-3-ol and 2,3-epoxybutane-1-ol from post-reaction mixtures left after the epoxidation of 1-butene-3-ol and 2-butene-1-ol with hydrogen peroxide by thin film distillation. From the raw mixture containing about 8.3 wt% of the epoxide at the first stage the concentration of epoxide is increased to 32 wt%. At the second stage of distillation the epoxide fraction is concentrated to about 76 wt%. After the third stage of thin film distillation the epoxide fraction of 99.6% purity can be obtained. The concentration of this fraction by azeotropic distillation with n-propanol as an azeotropic agent permits obtaining epoxide of 99.6 wt% purity.

Słowa kluczowe

EN

thin film distillation; isolation of epoxides

PL

cienka powłoka destylacyjna; izolacja epoksydowa

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2010
• Tom: Vol. 12, nr 2
• Strony: 29--32
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Wróblewska A.

autor

Wajzberg-Prokowska J.

autor

Ławro E.

autor

Milchert E.

• West Pomeranian University of Technology Szczecin, Institute of Organic Chemical Technology, ul. Pułaskiego 10, 70-322 Szczecin, Poland,,

Bibliografia

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• 2. Wróblewska, A. & Milchert, E. (2006). The method of glycidol separation. Pol. Patent Application No. 381,838. Warszawa: Pol. Patent and Trademark Office (in Polish).
• 3. Krell, E. (1982). Handbook of laboratory distillation. Berlin, Germany: Elsevier Scientific Publishing.
• 4. Aleksandrowicz, F. (1958). Laboratory technique in organic chemistry. Warszawa, Poland: PWN (in Polish).
• 5. Bandrowski, J., Troniewski, L. (1987). Distillation and rectification (3-rd ed.). Gliwice, Poland: Silesian University of Technology (in Polish).
• 6. Bojarski, J. (1958). Laboratory technique in organic chemistry. Warszawa, Poland: PWN (in Polish).
• 7. Chawankul, N., Chuaprasert, S., Douglas, P. & Luewisutthichat, W. (2001). Simulation of agitated thin film evaporator for concentrating orange juice using AspenPlusTM. J. Food Eng. 47, 247 – 253.
• 8. Chuaprasert, S., Douglas, P. & Nguyen, M. (1999). Data reconciliation of an agitated thin film evaporator using Aspenplus. J. Food Eng. 39, 261 – 267.