Quenching system to prevent loss of fluidity in a reaction vessel
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United States of America Patent
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-
Feb 15, 1994
Grant Date -
N/A
app pub date -
Sep 4, 1992
filing date -
Sep 9, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A quench system which can be used to quench a continuous reaction such as the continuous digestion of titaniferous ores with sulphuric acid is provided. The quench system comprises a pressure vessel (1) equipped with a full bore outlet valve (5) connected to a reaction vessel (7) which may require quenching. The pressure vessel is partly filled with a liquid (18) and the ullage is occupied by a gas under pressure, the pressure being sufficient to discharge the liquid through the outlet valve (5) when open. The reaction vessel is equipped with means to detect cessation of stirring therein or power failure and the full bore valve is equipped with means (19) to open when cessation of stirring or power failure is detected. Operation of the quench system enables a reaction to be rapidly cooled and diluted to prevent solidification and the problems associated therewith in the event of the reactants being unstirred.
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