Method of gas phase catalytic oxidation to give maleic aicd anhydride
AssigneeBASF SE
InventorsPeter Zehner, Otto Machhammer, Claus Hechler, Alexander Weck, Gerhard Olbert, Uwe Stabel
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Abstract
A process for the preparation of maleic anhydride by heterogeneously catalyzed gas-phase oxidation in a reactor with feed for the reaction mixture at one end of the reactor and discharge of the product mixture at the opposite end of the reactor, and with devices for dissipating the heat of reaction which are arranged in the reactor interior and through which a heat-exchange medium flows and which are designed as heat-exchanger plates.
Claims9
A process for the preparation of maleic anhydride by heterogeneously catalyzed gas-phase oxidation in a reactor with feed (1) for the reaction mixture at one end of the reactor and discharge (2) at the opposite end of the reactor, and with devices (8) for dissipating the heat of reaction which are arranged in the reactor interior and through which a heat-exchange medium flows, wherein the devices (8) are heat-exchanger plates.
A process as claimed in one of the preceding claims, wherein a liquid inorganic or organic heat-exchange medium or a gaseous heat-exchange medium is employed.
A process as claimed in one of the preceding claims, wherein the heat-exchanger plates (8) are arranged parallel to one another.
A process as claimed in one of the preceding claims, wherein the surfaces of the heat-exchanger plates facing the reaction mixture are provided with a full or partial catalytic coating.
A process as claimed in one of the preceding claims, wherein the reaction mixture comprises n-butane, oxygen and, if desired, further components.
Dependencies are inferred from the claim text.