Purification of salt-charged waste water by wet oxidation under super-critical conditions
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United States of America Patent
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Aug 1, 1995
Grant Date -
N/A
app pub date -
Feb 22, 1994
filing date -
Feb 24, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
With the process according to the invention for the purification of salt-charged waste water by wet oxidation of organic constituents under supercritical conditions, the reaction is performed in the form of a flame (5). In this case the supercritical zone is surrounded with a subcritical by-pass flow (4) formed from cooling water. At one end of the reactor (1) constructed as a cylindrical pressure vessel are provided at least one burner nozzle (2) and at least one annular inlet point (48), surrounding the burner nozzle, for the cooling water; at the other end is disposed at least one common outlet point (160) for cooling water, reaction products and in particular precipitated salts. Thanks to the by-pass flow there are no obstructions caused by salts; and corrosion problems are substantially reduced.
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