Process for regeneration of ionic liquid catalyst
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United States of America Patent
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May 24, 2016
Grant Date -
Aug 20, 2015
app pub date -
Dec 28, 2012
filing date -
Dec 30, 2011
priority date (Note) -
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Abstract
The present invention relates to a regeneration process for producing a regenerated ionic liquid catalyst from solids formed in an ionic liquid alkylation process wherein a first ionic liquid is used as a catalyst which is a composite ionic liquid comprising ammonium cations, and anions being composite coordinate anions derived from two or more metal salts, the regeneration process comprising
- (a) removing the solids from the reaction zone of the alkylation process; and(b) subsequently treating the solids with a second ionic liquid made from an ammonium salt as cation, and an aluminum salt as anion which is the same as the aluminum salt present in the first ionic liquid.
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