Process for regenerating filter aid used in a winterization process
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United States of America Patent
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Jul 4, 2017
Grant Date -
Aug 27, 2015
app pub date -
Sep 25, 2013
filing date -
Sep 27, 2012
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Abstract
The present invention relates to a process for in situ regeneration of spent filter aid including the steps of: a) circulating through a spent filter aid cake in a circulation loop a regenerating oil at a temperature of from 40° C. to 100° C., in a regenerating oil/spent filter aid (v/w) ratio of from 0.3/1 to 12/1; b) removing the regenerating oil from the treated spent filter aid cake; and c) recovering the regenerated filter aid.
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