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US 2005/0010064 A1Published application
Method for purifying spent acid
AssigneeRhodia Inc.
InventorsRichard Liu, Philip Hill, Thomas Pruitt, Forrest Sanders, Albert Yang
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AssigneeRhodia Inc.
InventorsRichard Liu, Philip Hill, Thomas Pruitt, Forrest Sanders, Albert Yang
Estimating the term…
A method for purifying a spent acid catalyst from an acid catalyzed chemical reaction that generates a mixture of a product, spent add and tar, includes the steps of separating the mixture of product, spent acid, and tar into a product fraction and a spent acid fraction, said spent acid fraction comprising a mixture of spent acid and tar, and separating the spent acid fraction, by flotation separation, centrifugation, or liquid-liquid coalescence, into a tar fraction and a de-tarred spent acid fraction. The fluidized tar and the de-tarred spent acid can each be further processed to produce concentrated acid.
A method for purifying spent acid from an acid-catalyzed chemical reaction that generates a mixture of a product, spent add and tar, comprising separating the mixture of product, spent add, and tar into a product fraction and a spent add fraction, said spent acid fraction comprising a mixture of spent acid and tar, and separating the spent acid fraction, by flotation separation, centrifugation, or liquid-liquid coalescence, into a tar fraction and a de-tarred spent acid fraction.
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