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1. NZ570813 - Process for the acid digestion of metal-containing compounds

Office
Nouvelle-Zélande
Numéro de la demande 570813
Date de la demande 27.08.2008
Numéro de publication 570813
Date de publication 30.09.2010
Numéro de délivrance 570813
Date de délivrance 08.01.2011
Type de publication B
CIB
C22B 3/00
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
BPRODUCTION OU AFFINAGE DES MÉTAUX; TRAITEMENT PRÉLIMINAIRE DES MATIÈRES PREMIÈRES
3Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés
C22B 15/00
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
BPRODUCTION OU AFFINAGE DES MÉTAUX; TRAITEMENT PRÉLIMINAIRE DES MATIÈRES PREMIÈRES
15Obtention du cuivre
CPC
C22B 3/08
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
04by leaching
06in inorganic acid solutions ; , e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
08Sulfuric acid ; , other sulfurated acids or salts thereof
C22B 3/165
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
04by leaching
16in organic solutions
1608Leaching with acyclic or carbocyclic agents
1616Leaching with acyclic or carbocyclic agents of a single type
165with organic acids
C22B 7/007
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
7Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; ; Methods of a general interest or applied to the winning of more than two metals
006Wet processes
007by acid leaching
C22B 15/0071
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
15Obtaining copper
0063Hydrometallurgy
0065Leaching or slurrying
0067with acids or salts thereof
0071containing sulfur
C22B 19/22
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
19Obtaining zinc or zinc oxide
20Obtaining zinc otherwise than by distilling
22with leaching with acids
C22B 59/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
59Obtaining rare earth metals
Déposants BASF SE
Inventeurs Heidenfelder, Thomas
Witteler, Helmut
Laubusch, Bernd
Seelmann-Eggebert, Hans-Peter
Mandataires BALDWINS INTELLECTUAL PROPERTY
Données relatives à la priorité 06 06110545 01.03.2006 EP
Titre
(EN) Process for the acid digestion of metal-containing compounds
Abrégé
(EN)
Patent 570813 Disclosed is a process for the acid digestion of metal-comprising compounds by leaching by means of an aqueous leachant, wherein the leachant comprises i) one or more alkanesulfonic acids with a propyl, ethyl or methyl moiety and sulphuric acid at a weight ratio of alkanesulfonic acid to sulfuric acid from 1 : 1000 to 1 : 1, and/or ii) a mixture of one or more salts of alkanesulfonic acids with a propyl, ethyl or methyl moiety and sulfuric acid at a weight ratio of salt of alkanesulfonic acid to sulfuric acid is from 1 : 9 to 1 :99. Also disclosed is said leachant used in the process.