Method for the oxidative treatment of bulk material
AssigneesGebrueder Loedige Maschinebau-Gesellschaft mbH, Wedeco Umwelttechnologie GmbH
InventorsAchim Ried, Martin Kampmann, Frank Spranzel
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Abstract
The invention relates to the oxidative treatment of bulk material in a vessel. The bulk material to be treated is placed in the vessel, and is humidified therein with water or an aqueous solution to such an extent that it can be treated with an O2/O3 gas mixture in such a way that the desired end product has a determined pH value or a determined solubility or a determined polarity or a determined solubility behaviour and/or particle size distribution. The inventive method enables bulk material to be very effectively oxidised by means of minimal amounts of ozone in an O2/O3 gas mixture, in such a way that between 70 and 100% of the ozone parts enter into a reaction.
Claims15
Oxidative treatment of bulk materials in a container and a processing station, which is connected with the container and which processes oxygen into a mixture of oxygen and ozone, the gas mixture, flowing into the container, being mixed with the bulk material that is to be treated and the gas mixture flowing out of the container, provided that it still contains ozone, being purified to remove solids and reduced to oxygen in equipment downstream from the container, characterized in that the bulk material, which is to be treated in the container, is moistened before and/or during the treatment with the mixture of oxygen and ozone gases, so that the moisture content of the bulk material is not greater than 40%, based on the total weight of the bulk material, which is to be treated, and that the end product, present after the oxidation and/or depolymerization, is dried in the container to the desired, final moisture content.
Device for the oxidative treatment of bulk materials
- with a container for the oxidative treatment of bulk materials and
- with a processing station, connected with the container for converting oxygen into a mixture of oxygen and ozone gases,
- the container is equipped as a mixer, in order to mix the gas mixture, flowing into the container, with the bulk material, which is to be treated,
- with a device, downstream from the container, for reducing any ozone, which may still be contained in the gas mixture flowing out of the container, into oxygen, after any solids in the gas mixture have been removed,
- characterized in that,
- the apparatus comprises means for moistening the bulk material, which is to be treated in the container, before and/or during the treatment with the mixture of oxygen and ozone gases, so that the moisture content of the bulk material can be adjusted to a value less than 40%, based on the total weight of the bulk material, which is to be treated.
Dependencies are inferred from the claim text.