METHOD OF OBTAINING (METH)ACROLEIN OR (METH)ACRYLIC ACID Russian patent published in 2009 - IPC B01J8/06 C07C59/54

Abstract RU 2346735 C2

FIELD: chemistry.

SUBSTANCE: acid is obtained by catalytic oxidation of propylene, propane or isobuthylene in gas phase using molecular oxygen. Method is implemented in multitube heat exchange reactor. Reactor includes multiple parallel reaction tubes, each filled with catalyst. Tube plate adjoins bottom side of some tubes in bunch, forming output for waste gas. Tube plate features rectifier.

EFFECT: uninterrupted reaction course without acrolein decomposition, enhanced purity of reaction product.

4 cl, 1 dwg, 2 ex

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RU 2 346 735 C2

Authors

Dzinno Kamikatsu

Ogava Jasusi

Suzuki Josiro

Jada Sukhei

Dates

2009-02-20—Published

2004-10-25—Filed