Combination magnetic separation, classification and attrition process for renewing and recovering particulates
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United States of America Patent
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May 5, 1998
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app pub date -
Jul 27, 1995
filing date -
May 3, 1991
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Abstract
Optimized utilization of combinations of fluid catalyst magnetic separator, classifier, and/or attriter can be used to achieve lower catalyst cost, and better catalyst activity and selectivity through control of metal-on-catalyst, particle size and particle size distribution. This process is especially useful when processing high metal-containing feedstocks. This provides a catalyst recovery unit (RCU.TM.) ancillary to an FCC or similar unit.
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