Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2006-10-24
2006-10-24
Witherspoon, Sikarl A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S798000
Reexamination Certificate
active
07126029
ABSTRACT:
The present invention provides a method and apparatus for in-process handling of concentrated cumene hydroperoxide (“CHP”) in a process for the production of phenol and acetone by the decomposition of CHP. The method of the present invention makes use of a tube and shell type heat exchanger as a vessel to accumulate a working volume of concentrated CHP from a distillation unit. Concentrated CHP is then fed to a decomposer unit from the accumulated working volume. Use of a tube and shell type heat exchanger improves safety over designs that make use of an unmodified tank or drum.
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Delabar James M.
Skipworth James G.
Drinker Biddle & Reath LLP
Koons, Jr. Robert A.
McWilliams Matthew P.
Sunoco Inc. (R&M)
Witherspoon Sikarl A.
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