Stirring device and process for carrying out a gas-liquid reaction
AssigneeBayer MaterialScience AG
InventorsRainer Buse, Berthold Keggenhoff, Jürgen Münnig, Friedhelm Steffens, Joachim Ritter
Life of this patent
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Abstract
The invention describes a stirring device made from a gassing stirrer and a liquid mixer or two liquid mixers, which are arranged on a shaft and each have a feed and at least one exit opening, wherein the exit openings of the gassing stirrer and of the liquid mixer or the liquid mixers are at a distance from one another, the ratio, a/d, of the distance, a, between the exit openings to the diameter, d, of the gassing stirrer or liquid mixer being 0.02 to 0.5 and the ratio, b/d, of the distance, b, between the outer edges to the diameter, d, of the gassing stirrer or liquid mixer being 0.01 to 0.4.
Claims18
A stirring device comprising a gassing stirrer having at least one exit opening and a liquid mixer or two liquid mixers having at least one exit opening, arranged on a shaft having a feed, wherein the at least one exit opening of the stirrer and the at least one opening of the mixer or of the mixers are at a distance from one another, such that a ratio, a/d, of distance, a, between the exit openings to diameter, d, of the stirrer and mixer or the mixers is from about 0.02 to about 0.5 and a ratio, b/d, of distance, b, between an edge of the stirrer and an edge of the mixer to diameter, d, of the stirrer or the mixer is from about 0.01 to about 0.4 and wherein the height of the liquid mixer is about 2 to about 25% of the height of the gassing stirrer.
A stirring device comprising a gassing stirrer having at least one exit opening and a liquid mixer or two liquid mixers having at least one exit opening, arranged on a shaft having a feed, wherein the at least one exit opening of the stirrer and the at least one opening of the mixer or of the mixers are at a distance from one another, such that a ratio, a/d, of distance, a, between the exit openings to diameter, d, of the stirrer and mixer or the mixers is from about 0.02 to about 0.5 and a ratio, b/d, of distance, b, between an edge of the stirrer and an edge of the mixer to diameter, d, of the stirrer or the mixer is from about 0.01 to about 0.4 and wherein the height of the Liquid mixer is about 5 to about 20% of the height of the gassing stirrer.
Dependencies are inferred from the claim text.