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1. (WO1997015355) METHOD FOR PROCESSING WASTE CONTAINING METAL CONTAMINANTS USING A REDUCING AGENT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/015355 International Application No.: PCT/FR1996/001662
Publication Date: 01.05.1997 International Filing Date: 24.10.1996
Chapter 2 Demand Filed: 23.05.1997
IPC:
A62D 3/00 (2007.01) ,C22B 7/00 (2006.01)
A HUMAN NECESSITIES
62
LIFE-SAVING; FIRE-FIGHTING
D
CHEMICAL MEANS FOR EXTINGUISHING FIRES; PROCESSES FOR MAKING HARMFUL CHEMICAL SUBSTANCES HARMLESS, OR LESS HARMFUL, BY EFFECTING A CHEMICAL CHANGE; COMPOSITION OF MATERIALS FOR COVERINGS OR CLOTHING FOR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; COMPOSITION OF MATERIALS FOR TRANSPARENT PARTS OF GAS-MASKS, RESPIRATORS, BREATHING BAGS OR HELMETS; COMPOSITION OF CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
3
Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B
PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
7
Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
Applicants:
CERNIX [FR/FR]; 6, rue Bobby-Lapointe F-35235 Thorigne-Fouillard, FR (AllExceptUS)
TURMEL, Jean-Michel [FR/FR]; FR (UsOnly)
ROCHERULLE, Jean [FR/FR]; FR (UsOnly)
GRANGE, Paul [BE/FR]; FR (UsOnly)
RAZAFINDRAKOTO, John [FR/FR]; FR (UsOnly)
VERDIER, Patrick [FR/FR]; FR (UsOnly)
LAURENT, Yves [FR/FR]; FR (UsOnly)
Inventors:
TURMEL, Jean-Michel; FR
ROCHERULLE, Jean; FR
GRANGE, Paul; FR
RAZAFINDRAKOTO, John; FR
VERDIER, Patrick; FR
LAURENT, Yves; FR
Agent:
MARTIN, Jean-Jacques ; Cabinet Regimbeau 26, avenue Kléber F-75116 Paris, FR
Priority Data:
95/1250524.10.1995FR
Title (EN) METHOD FOR PROCESSING WASTE CONTAINING METAL CONTAMINANTS USING A REDUCING AGENT
(FR) PROCEDE DE TRAITEMENT DE DECHETS CONTENANT DES CONTAMINANTS METALLIQUES AU MOYEN D'UN REDUCTEUR
Abstract:
(EN) A method for processing waste containing metal contaminants in the form of metals modified by carbon, oxygen, phosphorus or sulphur, wherein the powdered waste is mixed with an ionic reducing agent (not aluminium nitride) in an inert liquid medium, the mixture is melted to give a first liquid phase and a second metal phase, and the two phases are separated and solidified to enable disposal or temporary storage of the first phase and recycling of the second phase. The method is useful for inerting or reclaiming waste containing metal contaminants.
(FR) L'invention concerne un procédé de traitement de déchets contenant des contaminant métalliques, sous forme de métaux modifiés par du carbone, de l'oxygène, du phosphore ou du soufre. Ce procédé consiste à: mélanger lesdits déchets à l'état pulvérulent avec un réducteur ionique en milieu liquide inerte, le réducteur étant autre que du nitrure d'aluminium; porter à fusion le mélange jusqu'à obtention d'une première phase liquide et d'une seconde phase métallique, et séparer et solidifier les deux phases en vue de la mise en décharge ou du stockage temporaire de la première et du recyclage de la seconde. Il est utilisé pour l'inertage ou la valorisation des déchets contenant des contaminants métalliques.
Designated States: CA, CZ, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
CZPV1998-1236EP0871520US6080224JPH11513750CA2236142