Apparatus for preparing high-concentration alkali

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United States of America Patent

PATENT NO 4927494
SERIAL NO

07209335

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Abstract

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A high pressure evaporation vessel which is operated at a predeterminate pressure above atmospheric pressure, is connected to a low pressure expansion vessel which is operated at a predeterminate pressure below the pressure prevailing in the high pressure evaporation vessel, through a U-shaped siphon tube. The U-shaped siphon tube contains a liquid column absorbing the pressure difference existing between the high pressure evaporation vessel and the low pressure expansion vessel.

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Patent Owner(s)

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SULZER-ESCHER WYSS AGZURICH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobayashi, Takayuki Ube, JP 235 2198
Sala, Siro Como, IT 2 0
Winkler, Robert Wallisellen, CH 9 21
Yokota, Shinjiro Ube, JP 4 19

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