Process for purifying ethylene glycol carbonate (EGC) by adsorption on activated carbon
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United States of America Patent
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Feb 6, 1996
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N/A
app pub date -
Apr 13, 1995
filing date -
Apr 22, 1994
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Abstract
Ethylene glycol carbonate (EGC) can be obtained in purified form from contaminated material which contains impurities from the production or work-up process, by subjecting it to treatment with activated carbon. The treatment is carried out at 40.degree.-250.degree. C. and at 1-200 bar. The activated carbon has a BET surface area of 200-3,000 m.sup.2 /g.
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