Process for the production of a flowable mixture which reacts to

Details Process for the production of a flowable mixture which reacts to Process for the production of a flowable mixture which reacts to

1985-09-05

1990-06-12

Chiesa, Richard L.

Gas and liquid contact apparatus

Multiple diverse liquids

261 361, 261 87, 261DIG26, 261DIG27, 264 50, 422133, 422135, 422225, 422231, 521917, B01F 304

Patent

active

049331159

ABSTRACT:
The present invention relates to an improved process for the production of a flowable mixture which reacts to form foam from flowable components stored in storage containers, wherein prior to metered introduction into a mixing zone, at least one of the components is charged with a defined quantity of gas, by (i) introducing said one component and gas separately into a gasification chamber equipped with a hollow stirrer, (ii) sucking gas into said component through the hollow shaft of the hollow stirrer, and (iii) stirring the gas into the component, until the desired value is attained, the improvement wherein (a) the component is circulated from the storage container through the gasification chamber and back into the storage container, (b) the gas sucked through the hollow shaft of the hollow stirrer being maintained at a pressure at least equal to the pressure prevailing in the storage container, and (c) the component fraction remaining in the storage container is homogenized during those periods in which gasification does not take place.

REFERENCES:
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patent: 1345596 (1920-07-01), Hovland
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patent: 4157427 (1979-06-01), Ferber
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patent: 4376172 (1983-03-01), Belangee et al.
Patent Abstracts of Japan, JP A-58-108 116, Toyota Jidosha Kogyo, Jun. 28, 1983.

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