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Abstract of US
2006149093 (A1)
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| The invention concerns a method
for separating a hydroxybenzonitrile-type compound
obtained by an amination/dehydration process. More
particularly, the invention concerns
2-hydroxybenzonitrile, also called 2-cyanophenol. The
inventive method for separating a hydroxybenzonitrile
compound from a reaction gas flow comprising it wholly
or partly in the form of an ammonium salt is
characterized in that it consists in displacing the
ammonium ions, through a physical treatment carried out
on the reaction gas flow derived from its preparation or
from the solid previously recuperated from said flow or
according to a chemical treatment carried out on the
reaction gas flow, after liquefaction. |
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Data supplied from the esp@cenet
database — Worldwide |
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