Apparatus, process and pressure reactor for the treatment of solids with pressurized liquid gases
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United States of America Patent
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Jul 9, 2002
Grant Date -
N/A
app pub date -
Sep 11, 2000
filing date -
Mar 13, 1998
priority date (Note) -
Expired
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Abstract
The invention relates to a process for the treatment of solids with pressurized liquid gases, in particular liquid ammonia, with which the to be treated solid is fed into a pressure reactor at atmospheric pressure. Subsequently the pressurized liquid gas is fed to the pressure reactor and after a pre-set dwell time the resultant liquid gas/solid mixture is expanded explosion-like into an expansion tank. With this at least two reactors are operated in a time-staggered manner. Furthermore an apparatus is described for the treatment of solids with pressurized liquid gases, which comprises at least two parallel arranged pressure reactors for the alternating taking in of a solid and a liquid gas, which each have inlet and outlet openings for the solid provided with shut-off elements as well as each at least one inlet opening for the liquid gas, at least one expansion tank which is connected to the respective pressure reactors, and conveying means for feeding the solid as well as the liquid gas.
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