Chemical method for removal of impurities impairing the quality of commercial 1,4-butanediol produced by the reppe method

Chemical method for removal of impurities impairing the quality of commercial 1,4-butanediol... Quantitative dependence of the amount of impurities in commercial 1,4-butanediol that affect the carbonyl number, γ-hydroxybutyraldehyde and its acetate with 1,4-butanediol, on the service life of the catalyst was determined. Hydrazine hydrate, 2,4-dinitrophenylhydrazine, and hydroxylamine hydrochloride were studied as reagents binding these impurities and raising the content of the main substance in the target product. A procedure is suggested for obtaining purified 1,4-butanediol. The optimal reagent is a mixture of a 30% aqueous solution of hydrazine hydrate with hydrochloric acid. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Chemical method for removal of impurities impairing the quality of commercial 1,4-butanediol produced by the reppe method

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Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427214010157
Publisher site
See Article on Publisher Site

Abstract

Quantitative dependence of the amount of impurities in commercial 1,4-butanediol that affect the carbonyl number, γ-hydroxybutyraldehyde and its acetate with 1,4-butanediol, on the service life of the catalyst was determined. Hydrazine hydrate, 2,4-dinitrophenylhydrazine, and hydroxylamine hydrochloride were studied as reagents binding these impurities and raising the content of the main substance in the target product. A procedure is suggested for obtaining purified 1,4-butanediol. The optimal reagent is a mixture of a 30% aqueous solution of hydrazine hydrate with hydrochloric acid.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Mar 28, 2014

References

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