Upflow drying of regenerated ethylene oxide catalysts
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United States of America Patent
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Jan 10, 1984
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N/A
app pub date -
Jun 28, 1982
filing date -
Jun 28, 1982
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Expired
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Abstract
The performance of silver-based catalyst used for the direct oxidation of ethylene to ethylene oxide is improved by regeneration in which from 1 to 1,000 parts per million of a regenerate is added to the catalyst in solution and the solvent is removed by drying the catalyst with a upflow of inert gas through the catalyst at ambient temperature and pressure.
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