Recycling of the catalyst in the etherification process of polyhydric alcohols using a PTC technique

• Autorzy: Janus E.
• Języki publikacji: EN

Abstrakty

EN

The conditions of recycling the PT catalyst (tetrabutylammonium salt) for the etherification process of 1,4-butanediol with allyl chloride, carried out in the presence of sodium hydroxide aqueous solution and toluene as a non-polar solvent were investigated. The distribution of the catalyst among the phases and the conditions of the formation of the third liquid phase by changing the composition of the organic and the aqueous phase were searched. Important compounds and their amounts have been established by the etherification process conditions. The effects of base (NaOH), salt (NaCl), 1,4-butanediol, the catalyst concentration and the composition of the organic phase, including toluene, allyl chloride, etherification products (1,4-diallyloxybutane and 4-allyloxybutan-l-ol) on the formation of the third liquid phase were investigated. These results allowed producing the scheme of 1,4-diallyloxybutane synthesis with the recycling of the catalyst.

Słowa kluczowe

EN

phase transfer catalysis; third liquid phase; recycling of PT catalyst; etherification; allyl ethers

PL

kataliza przeniesienia międzyfazowego; trzecia faza ciekła; eteryfikacja; etery allilowe

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2004
• Tom: Vol. 6, nr 3
• Strony: 16--20
• Opis fizyczny: Bibliogr. 15 poz., tab., rys.

Twórcy

autor

Janus E.

• Technical University of Szczecin, Department of Organic Chemical Technology, ul. Pułaskiego 10, 70-322 Szczecin

Bibliografia

• (1) Antoszczyszyn M., Janus E., Urbala M., Polish Journal of Applied Chemistry, 1999, XLIII(1), 77.
• (2) Antoszczyszyn M., Urbala M., Janus E., Comptes Rendus de l’Academie Bulgare des Sciences, 1999, 52 (7 - 8), 39.
• (3) Freedman H. H, Pure Appl. Chem. 1986, 58 (6), 857.
• (4) Halpern M., Phase Trans. Catal. Comm. 1996, 2, 17.
• (5) Naik S. D., Doraiswamy L. K., AIChE Journal 1998, 44 (3), 612.
• (6) Desikan S., Doraiswamy L. K., Ind. Eng. Chem. Res. 1995, 34, 3524.
• (7) Wang D, Weng H., Chem. Eng. Sci. 1995, 50 (21), 3477.
• (8) Hsiao H., Weng H., Ind. Eng. Chem. Res. 1999, 38, 2911.
• (9) Ido T, Yamamoto T., Jin G., Goto S., Chem. Eng.Sci. 1997, 52 (20), 3511.
• (10) Ido T„ Susaki T, Jin G., Goto S., Applied Catalysis A: General 2000, 201,139.
• (11) Yadav G. D., c. A.Reddy, Ind. Eng. Chem. Res. 1999, 38, 2245.
• (12) Yadav G. D., Naik S. S., Catalysis Today 2001, 66, 345.
• (13) Brenk D., Antoszczyszyn M., Przemysł Chemiczny, 2000, 79(10), 336.
• (14) Stojanowa-Antoszczyszyn M., Brenk D., Janus E., Comptes Rendus de l’Academie Bulgare des Sciences, 2001, 54(3), 51.
• (15) Wang D., Weng H., Chem. Eng. Sci. 1988, 43 (8), 2019.