C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 57/05 (2006.01) C07C 45/35 (2006.01) C07C 47/22 (2006.01) C07C 51/25 (2006.01)
Patent
CA 2171415
Abstract In a process for the continuous heterogeneously catalyzed gas- phase oxidation of propylene to acrolein, acrylic acid or a mixture thereof in an oxidation reactor whose feed gas mixture comprises, apart from propylene and molecular oxygen as oxidant, only at least one diluent gas which is essentially inert under the conditions of the heterogeneously catalyzed gas-phase oxida- tion and where, in continuous operation, at least a part of the essentially inert diluent gases present in the product gas mix- ture is separated off therefrom and is reused as a constituent of the feed gas mixture to the oxidation reactor, the essentially inert diluent gas mixture comprises more than 85 % by volume of at least one saturated hydrocarbon having from 1 to 5 carbon atoms.
Hefner Werner
Machhammer Otto
Neumann Hans-Peter
Ruppel Wilhelm
Tenten Andreas
Basf Aktiengesellschaft
Hefner Werner
Machhammer Otto
Neumann Hans-Peter
Robic
LandOfFree
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