PROCESS FOR REGENERATING FILTER AID USED IN A WINTERIZATION PROCESS
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United States of America Patent
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Oct 5, 2017
app pub date -
May 25, 2017
filing date -
Sep 27, 2012
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Abstract
The present invention relates to a process for in situ regeneration of spent filler 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 from 0,3/1 to 12/1; b) removing the regenerating oil from the treated spent filter aid cake; and recovering the regenerated filter aid,
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