Reaction equation
[CH2:1]=[CH:2][CH:3]=[CH2:4].O=O.[C:7]([OH:10])(=[O:9])[CH3:8]>>[C:7]([O:10][C:1]([O:10][C:7](=[O:9])[CH3:8])=[CH:2][CH2:3][CH3:4])(=[O:9])[CH3:8]Participants
Procedure
The reactor was maintained at 6 MPa, and 70° C. acetic acid containing butadiene and 70° C. nitrogen gas containing oxygen were continuously introduced into a lower part of the reactor at superficial velocities of 1.8 cm/sec and 1.5 cm/sec, respectively, and passed through the catalyst-packed bed upward. The nitrogen gas containing oxygen was introduced with a sparger so as to form fine bubbles. The liquid and gas introduction was thus continued over 2,700 hours to conduct a reaction for yielding diacetoxybutene. Thereafter, the catalyst was withdrawn through the upper part of the reactor and examined for palladium content. As a result, the palladium content had not decreased at all. Furthermore, the surface of the catalyst withdrawn was examined with an optical microscope (magnification, 50 diameters). As a result, almost no mars formed by friction were observed.
Workup
- additionwere continuously introduced into a lower part of the reactor at superficial velocities of 1.8 cm/sec and 1.5 cm/sec
- additionwas introduced with a sparger so as
- customto form fine bubbles
- waitThe liquid and gas introduction was thus continued over 2,700 hours
- customa reaction
Sources & evidence
- ORD record
- ord-1092ec5d8e1941f8b9cde24effca7b45
- Source dataset
- uspto-grants-2005_07
- Patent number
- US06914156B2
Linked notes
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