Process for treating waste waters containing aromatic nitro compounds

Process for treating waste waters containing aromatic nitro compounds

Alkaline waste waters containing 100-3000 ppm benzene and 1000-10000 ppm nitrobenzene is treated by separating undissolved benzene and/or nitrobenzene from the alkaline waste water; optionally, stripping residual benzene and/or nitrobenzene from the alkaline waste water; and heating the alkaline was...

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Hauptverfasser: VON GEHLEN, FRANZ-ULRICH, SCHMIEDLER, JÖRG, KNAUF, THOMAS, DOHMEN, WOLFGANG
Format: Patent
Sprache:eng ; pol
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator VON GEHLEN, FRANZ-ULRICH
SCHMIEDLER, JÖRG
KNAUF, THOMAS
DOHMEN, WOLFGANG
description Alkaline waste waters containing 100-3000 ppm benzene and 1000-10000 ppm nitrobenzene is treated by separating undissolved benzene and/or nitrobenzene from the alkaline waste water; optionally, stripping residual benzene and/or nitrobenzene from the alkaline waste water; and heating the alkaline waste water from 150-500[deg]C under pressure in the absence of oxygen.
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Process for treating waste waters containing aromatic nitro compounds
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