Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2002-11-07
2004-07-13
Richter, Johann (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S396000, C568S401000, C568S402000
Reexamination Certificate
active
06762328
ABSTRACT:
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION
This invention relates to the production of methyl isobutyl ketone. It relates in particular to a process for the production of methyl isobutyl ketone.
SUMMARY OF THE INVENTION
According to a first aspect of the invention, there is provided a process for producing methyl isobutyl ketone, which process includes
introducing acetone as a feedstock into a first reaction zone;
subjecting the acetone to catalytic distillation in the first reaction zone, thereby to convert at least some of the acetone to mesityl oxide (‘MSO’), water and, optionally, diacetone alcohol (‘DAA’) and/or other by-products;
withdrawing from the first reaction zone, a product stream comprising MSO, water, and, optionally, DAA, other by-products and/or unreacted acetone;
when the product stream includes DAA, other by-products and/or unreacted acetone, treating the product stream in at least one treatment zone to remove at least some of the DAA, other by-products and/or the unreacted acetone therefrom;
feeding the product stream, as well as hydrogen, into a second reaction zone in which MSO present in the product stream and hydrogen react to form methyl isobutyl ketone (‘MIBK’); and
withdrawing a MIBK rich product stream from the second reaction zone.
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patent: 4306068 (1981-12-01), Smith, Jr.
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patent: 6008416 (1999-12-01), Lawson et al.
patent: 6518462 (2003-02-01), Saayman et al.
Kindermans Sybrandus
Lund Grand James
Saayman Nelis
Catalytic Distillation Technologies
Johnson Kenneth H.
Witherspoon Sikarl A.
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