System and method for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid
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United States of America Patent
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Oct 3, 2017
Grant Date -
Jun 18, 2015
app pub date -
Aug 2, 2012
filing date -
Mar 31, 2012
priority date (Note) -
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Abstract
A system for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid comprises a concentration kettle (1), a defoaming pot (2), a gas-liquid separator (3) and a falling film absorption tower (4). A steam exit of the concentration kettle (1) is connected to an entrance of the defoaming pot (2). An exit of the defoaming pot (2) is connected to a feeding port of the gas-liquid separator (3). A gas exit of the gas-liquid separator (3) is connected to the falling film absorption tower (4). A liquid exit of the gas-liquid separator (3) is connected to the concentration kettle (1). A method for purifying mother liquid steam of polytetrafluoroethylene dispersion liquid by using the system is further provided.
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