Method for the production of high-purity ethylene glycols

Details Method for the production of high-purity ethylene glycols Method for the production of high-purity ethylene glycols

1979-03-09

1982-11-09

Evans, Joseph E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 3120

Patent

active

043586252

ABSTRACT:
A method is disclosed for obtaining high-purity ethylene glycols in which the improvement consists in reducing the oxygen-containing organic impurities by treating their aqueous solutions as obtained during the processing of ethylene oxide with a solution of an alkali metal borohydride, sodium borohydride being preferred.
A definitely alkaline environment is preferred. Ethylene glycols can thus be obtained which are particularly suitable for use in the fibre-manufacturing industry. Such glycols have extremely low UV-absorbance values.

REFERENCES:
patent: 2867651 (1959-01-01), Wise
patent: 3597452 (1971-08-01), Laemmle et al.
patent: 3860520 (1975-01-01), Lindemuth et al.
patent: 3904656 (1975-09-01), Broz
patent: 3970711 (1976-07-01), Reiche et al.
Taylor, "Chem. Abstracts", vol. 56, (1962), 2590d.

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