Hole jet reactor and a process for the preparation of an isocyanate using the reactor
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United States of America Patent
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Dec 18, 2012
Grant Date -
Jun 3, 2010
app pub date -
Aug 21, 2007
filing date -
Sep 28, 2006
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Abstract
The present invention relates to a hole-jetting type reactor and its applications, in particular to a process for the production of isocyanates by the phosgenation of aliphatic or aromatic diamines or triamines in the gas phase using this reactor. The present invention achieves a good mixing and reacting result of the gas-phase phosgenation reaction at a high temperature by improving the mixing of reactants in the reactor to reduce the possibility of forming swirls and eliminate negative pressure produced at a local jet area, which can finally reduce back-mixing and formation of solid by-products.
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