METHOD OF PROCESSING LIQUID CHLORINE CONTAINING NITROGEN TRICHLORIDE
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United States of America Patent
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Issued Date -
Jan 26, 2012
app pub date -
Mar 6, 2010
filing date -
Mar 6, 2010
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Abandoned
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Abstract
A method of processing a stream of liquid chlorine containing nitrogen trichloride from a chloralkali plant. The liquid stream is received into a vaporizer in which it is evaporated 1O1 chlorine gas and nitrogen trichloride gas. The gas stream is processed by destroying the nitrogen trichloride gas, for example in a superheater or a catalytic bed. The processed gas stream is recycled to the chlorine production train of the chloralkali plant. The process avoids the use of organic solvents to decompose the nitrogen trichloride and the creation of a waste stream requiring further handling.
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