Bayer Aktiengesellschaft

Otto Horak

Thomas Melin

Klaus Holzer

Knut Hammerstrom

Kurt Feldner

Walter Horstmann

Hans-Ulrich Alles

Rolf Muders

Werner Beinert

Ruthard Potthast

Werner Falkenberg

Process for the treatment of organic pollutants in wastewaters by wet

Oxidative cleaning process of contaminated slurries or slurried earth

A process is provided for the treatment of high-boiling, solids- and copper-containing residues produced during organochlorosilane synthesis. The process comprises hydrolyzing, oxidizing the hydrolyzed residues with a free oxygen-containing gas and separating-out a copper-containing solution.

Process for the treatment of hydrolysis residues from organo

A process for the decontamination of an effluent loaded with organic substances, which effluent has, where appropriate after the addition of a redox system, a redox potential of 300-600 mv measured at a platinum electrode versus a silver/silver chloride electrode, comprising oxidizing the effluent with oxygen or an oxygen-containing gas at a pH of 1 to 4, a temperature of 50.degree. to 200.degree. C. and a pressure of 1 to 60 bar in the presence of a redox catalyst and a co-catalyst comprising coal, lignite or peat which has been pretreated with alkali.

Process for the decontamination of effluents

In the degradation of organic compounds in an effluent by oxidizing the effluent at an elevated temperature with oxygen, the improvement which comprises effecting the oxidation at a redox potential of from about 300 to 600 millivolts, as measured with a platinum electrode against a silver-silver chloride electrode, at a temperature of from about 80.degree. to 250.degree. C and under a pressure of from about 30 to 200 bars. The redox potential may be maintained by an Fe.sup.2+ and/or Fe.sup.3+ ion system and the pH is advantageously below about 7.

Degradation of organic compounds in effluents by wet oxidation

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Cologne, Germany

Otto Horak