发明名称 |
PRODUCTION OF HIGH-PURITY ETHYLENE GLYCOLS |
摘要 |
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. |
申请公布号 |
AU3069377(A) |
申请公布日期 |
1979.05.24 |
申请号 |
AU19770030693 |
申请日期 |
1977.11.16 |
申请人 |
SNAMPROGETTI S.P.A. |
发明人 |
ALBERTO PAGGINI;UGO ROMANO;DONATO FURLONE;DOMENICO SAN FILIPPO |
分类号 |
C07C29/10;C01B6/04;C01D1/04;C02F1/52;C02F1/58;C02F1/70;C07C;C07C27/00;C07C29/00;C07C29/04;C07C29/132;C07C31/20;C07C33/02;C07C43/04;C07C67/00 |
主分类号 |
C07C29/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|