Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2006-07-10
2009-10-27
Puttlitz, Karl J (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C562S542000, C568S476000
Reexamination Certificate
active
07608734
ABSTRACT:
Disclosed is a process for producing unsaturated aldehydes and/or unsaturated acids from olefins or alkanes in a fixed bed shell-and-tube heat exchanger-type reactor by catalytic vapor phase oxidation. A heat exchanger-type reactor for use in such a process is also disclosed. The process utilizes at least one first-step reaction zone and a second-step reaction zone that is divided into two or more shell spaces by at least one partition. The process may be applied to a single-step process for producing unsaturated acids from alkanes or alkenes.
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Choi Seok Hwan
Ha Kyoung Su
Kang Seong Pil
Kim Young Bae
Ko Jun Seok
Cantor & Colburn LLP
LG Chem Ltd.
Puttlitz Karl J
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