Hydrometallurgical process for the recovery of copper from oxidized metalworking wastes

Process for the recovery of copper from oxidized metalworking wastes by leaching with a solution of ammonium hydroxide which results in the formation of ammoniacal copper (II) complexes and separation of the metal from the mother liquor which is obtained by precipitation (with iron or zinc) or by so...

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Bibliographische Detailangaben
Hauptverfasser:	GOMEZ COEDO AURORA, NAVARRO DONOSO PATRICIO, ALGUACIL PRIEGO FRANCISCO JOSE, SIMPSON ALVAREZ JAIME, MAGNE ORTEGA LUIS, DORADO LOPEZ M. TERESA
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Process for the recovery of copper from oxidized metalworking wastes by leaching with a solution of ammonium hydroxide which results in the formation of ammoniacal copper (II) complexes and separation of the metal from the mother liquor which is obtained by precipitation (with iron or zinc) or by solvent extraction (using acid extraction agents), regenerating the leaching solution by neutralizing the acid produced in the extraction of copper with the ammoniate of the metal complex. PROCEDIMIENTO PARA LA RECUPERACION DE COBRE A PARTIR DE RESIDUOS METALURGICOS OXIDADOS MEDIANTE UNA LIXIVIACION CON UNA DISOLUCION DE HIDROXIDO AMONICO, QUE PERMITE LA FORMACION DE LOS COMPLEJOS AMONIACALES DE COBRE (II) Y SEPARACION DE ESTE METAL DE LA DISOLUCION FERTIL QUE SE OBTIENE MEDIANTE CEMENTACION (CON HIERRO O CINC) O MEDIANTE EXTRACCION CON DISOLVENTES (CON AGENTES DE EXTRACCION ACIDOS), REGENERANDOSE LA DISOLUCION DE LIXIVIACION POR NEUTRALIZACION DE ACIDO PRODUCIDO EN LA EXTRACCION DEL COBRE CON EL AMONIACO DEL COMPLEJO METALICO.