Method of obtaining dried terephthalic acid
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United States of America Patent
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Oct 28, 1980
Grant Date -
N/A
app pub date -
Jun 8, 1979
filing date -
Jun 8, 1979
priority date (Note) -
Expired
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Abstract
Terephthalic acid produced by oxidizing paraxylene can be obtained in the form of dried powder from the slurry containing terephthalic acid and acetic acid and/or water by using combination of a tubular type heater having at least one heating tube and a separation chamber in which the heating tube(s) open(s) at one end(s) thereof. Critical slurry concentrations for smooth operation are given.
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