CL2009001736A1 - Process of metallurgical recovery of copper from acidic incoming solutions with low copper content, and which comprises using inputs produced in situ such as sulfhydric acid or peroxy-sulfuric acid, precipitation of copper from the incoming solution with h2s, solid-liquid separation and sulfur leaching Cupric with acid. - Google Patents
Process of metallurgical recovery of copper from acidic incoming solutions with low copper content, and which comprises using inputs produced in situ such as sulfhydric acid or peroxy-sulfuric acid, precipitation of copper from the incoming solution with h2s, solid-liquid separation and sulfur leaching Cupric with acid.Info
- Publication number
- CL2009001736A1 CL2009001736A1 CL2009001736A CL2009001736A CL2009001736A1 CL 2009001736 A1 CL2009001736 A1 CL 2009001736A1 CL 2009001736 A CL2009001736 A CL 2009001736A CL 2009001736 A CL2009001736 A CL 2009001736A CL 2009001736 A1 CL2009001736 A1 CL 2009001736A1
- Authority
- CL
- Chile
- Prior art keywords
- copper
- acid
- solution
- stage
- precipitation
- Prior art date
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title abstract 11
- 229910052802 copper Inorganic materials 0.000 title abstract 11
- 239000010949 copper Substances 0.000 title abstract 11
- 239000002253 acid Substances 0.000 title abstract 10
- 238000000034 method Methods 0.000 title abstract 6
- 238000001556 precipitation Methods 0.000 title abstract 4
- 238000011084 recovery Methods 0.000 title abstract 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 title abstract 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title abstract 2
- 238000011065 in-situ storage Methods 0.000 title abstract 2
- 238000000926 separation method Methods 0.000 title abstract 2
- 230000002378 acidificating effect Effects 0.000 title 1
- 238000002386 leaching Methods 0.000 title 1
- FHHJDRFHHWUPDG-UHFFFAOYSA-N peroxysulfuric acid Chemical compound OOS(O)(=O)=O FHHJDRFHHWUPDG-UHFFFAOYSA-N 0.000 title 1
- 229910052717 sulfur Inorganic materials 0.000 title 1
- 239000011593 sulfur Substances 0.000 title 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 3
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 abstract 3
- 230000003647 oxidation Effects 0.000 abstract 3
- 238000007254 oxidation reaction Methods 0.000 abstract 3
- 229910000365 copper sulfate Inorganic materials 0.000 abstract 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 abstract 2
- 238000000638 solvent extraction Methods 0.000 abstract 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 238000013019 agitation Methods 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 229910001448 ferrous ion Inorganic materials 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
PROCESO PARA EL AUMENTO EN LA RECUPERACIÓN METALÚRGICA DE COBRE EN EL PROCESO DE LIXIVIACIÓN DE MINERALES Y EN LA RECUPERACIÓN<br /> DE COBRE EN SOLUCIONES ÁCIDAS (1) CON BAJO CONTENIDO DE COBRE MEDIANTE EL USO DE UN LIXIVIANTE MODIFICADO, CARACTERIZADO PORQUE<br /> PARA LA RECUPERACIÓN DEL COBRE CONTENIDO EN LAS SOLUCIONES ENTRANTES ÁCIDAS (1 A) CON BAJOS CONTENIDOS DE COBRE (2-3 GR/LT DE<br /> COBRE) EN BASE A UNA ETAPA DE PRECIPITACIÓN (1) CON ÁCIDO SUFRHÍDRICO (H2S) (1 B) GENERADO IN SITU EN BASE A UN PROCESO DEL TIPO BIOGENERACIÓN; LA PRESENCIA DEL ÁCIDO SULFHÍDRICO DISUELTO EN LA SOLUCIÓN, PERMITE LA PRECIPITACIÓN DEL COBRE COMO SULFURO CÚPRICO (CUS) DE ACUERDO A LA SIGUIENTE REACCIÓN QUÍMICA: ESTA ETAPA DE PRECIPITACIÓN SE REALIZA EN UNA TORRE RELLENA, EN LA CUAL LA CORRIENTE DE H2S (1 B) CIRCULA EN CONTRACORRIENTE A LA SOLUCIÓN, RESULTADO DE LO CUAL SE GENERA UNA SOLUCIÓN DE SULFURO CÚPRICO Y ÁCIDO SULFÚRICO CON UNA MAYOR CONCENTRACIÓN ÁCIDA (LC); POSTERIORMENTE ESTA SOLUCIÓN (LE) SE SOMETE A UNA SEPARACIÓN SÓLIDO-LÍQUIDO (2), EN QUE EL COBRE ES OBTENIDO COMO PRECIPITADO DE CUS Y ENVIADO A FUNDICIÓN (2A) PARA SU POSTERIOR TRATAMIENTO O EL SULFURO CÚPRICO (2C) ES ENVIADO A UNA ETAPA DE OXIDACIÓN POSTERIOR (3) Y EL LÍQUIDO FILTRADO (2B) PROVENIENTE DE LA ETAPA (2), QUE CONSISTE EN UNA SOLUCIÓN ACIDA CON IONES FERROSO (FE2+) Y FÉRRICO (FE3+), LA QUE SE MEZCLA CON EL REFINO (SB) PROVENIENTE DE LA ETAPA DE<br /> EXTRACCIÓN POR SOLVENTE (S) PARA CONSTITUIR UNA SOLUCIÓN ACIDA DE ÁCIDO SULFÚRICO (H2504) CON IONES FE2+ Y FE3 Y LIBRE DE COBRE (SE)<br /> QUE VA A UNA ETAPA POSTERIOR DE FABRICACIÓN DE ÁCIDO PEROXIMONOSULFÚRICO (9); EL SULFURO DE COBRE (2C) ES SOMETIDO A UN PROCESO DE OXIDACIÓN A PRESIÓN REDUCIDA (3), QUE CONSISTE EN UNA OXIDACIÓN A BAJA PRESIÓN DE OXÍGENO (3A) CON ADICIÓN DE ÁCIDO<br /> PEROXIMONOSULFÚRICO (3B) PARA CONVERTIR EL SULFURO A SULFATO Y FORMAR SULFATO DE COBRE (CUS04), EVITANDO LA FORMACIÓN DE AZUFRE<br /> ELEMENTAL. ESTE PROCESO OCURRE EN UN REACTOR A BAJA PRESIÓN CON AGITACIÓN MECÁNICA; LA SOLUCIÓN OBTENIDA DE LA ETAPA (3). QUE CONTIENE SULFATO DE COBRE Y ÁCIDO SULFÚRICO (3C) ES SOMETIDA A UNA ETAPA DE EXTRACCIÓN POR SOLVENTES (S) PARA AUMENTAR LA<br /> CONCENTRACIÓN DE COBRE REMANENTE Y. PROCESS FOR THE INCREASE IN COPPER METALLURGICAL RECOVERY IN THE MINERAL LIXIVIATION PROCESS AND COPPER RECOVERY <br /> IN ACID SOLUTIONS (1) WITH LOW COPPER CONTENT THROUGH THE USE OF A MODIFIED LIXIVIANT, CHARACTERIZED BECAUSE <br /> FOR THE RECOVERY OF COPPER CONTAINED IN INTAINING ACID SOLUTIONS (1 A) WITH LOW COPPER CONTENTS (2-3 GR / LT OF <br /> COPPER) BASED ON A PRECIPITATION STAGE (1) WITH SUFRHYDRIC ACID (1) H2S) (1 B) GENERATED IN SITU BASED ON A BIOGENERATION TYPE PROCESS; THE PRESENCE OF THE SULFHYDRIC ACID DISSOLVED IN THE SOLUTION, ALLOWS THE PRECIPITATION OF COPPER AS A CUPIC SULFIDE (CUS) ACCORDING TO THE FOLLOWING CHEMICAL REACTION: THIS PRECIPITATION STAGE IS PERFORMED IN A STUFFED TOWER, IN WHICH THE CORRIENT ) CIRCULA IN CONTRACTOR TO THE SOLUTION, RESULT OF WHICH A SOLUTION OF CUPIC SULFIDE AND SULFURIC ACID IS GENERATED WITH A GREATER ACID CONCENTRATION (LC); AFTER THIS SOLUTION (LE) IS SUBMITTED TO A SOLID-LIQUID SEPARATION (2), IN WHICH THE COPPER IS OBTAINED AS A PRECIPITATE OF CUS AND SENT TO FOUNDRY (2A) FOR ITS TREATMENT OR THE CUPTIC SULFIDE (2C) IS SENT LATER OXIDATION STAGE (3) AND THE FILTERED LIQUID (2B) FROM STAGE (2), WHICH CONSISTS IN AN ACID SOLUTION WITH FERROUS IONS (FE2 +) AND FERRIC (FE3 +), WHICH MIXES WITH THE REFINE (SB) COMING FROM THE STAGE OF <br /> SOLVENT EXTRACTION (S) TO CONSTITUTE AN ACID SOLUTION OF SULFURIC ACID (H2504) WITH FE2 + AND FE3 AND COPPER FREE (SE) <br /> GOING TO A MANUFACTURING STAGE PEROXIMONOSULFURIC ACID (9); THE COPPER SULFIDE (2C) IS SUBMITTED TO A REDUCED PRESSURE OXIDATION PROCESS (3), WHICH CONSISTS IN A LOW OXYGEN OXIDATION (3A) WITH ACID ADDITION <br /> PEROXIMONOSULFURIC ACID (3B) TO CONVERT THE ELEMENT A SULFATE AND FORM COPPER SULFATE (CUS04), AVOIDING THE FORMATION OF ELEMENTAL SULFUR. THIS PROCESS OCCURS IN A LOW PRESSURE REACTOR WITH MECHANICAL AGITATION; THE SOLUTION OBTAINED FROM STAGE (3). CONTAINING COPPER SULFATE AND SULFURIC ACID (3C) IS SUBMITTED TO A SOLVENT EXTRACTION STAGE (S) TO INCREASE THE REMCENT COPPER CONCENTRATION AND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CL2009001736A CL2009001736A1 (en) | 2009-08-18 | 2009-08-18 | Process of metallurgical recovery of copper from acidic incoming solutions with low copper content, and which comprises using inputs produced in situ such as sulfhydric acid or peroxy-sulfuric acid, precipitation of copper from the incoming solution with h2s, solid-liquid separation and sulfur leaching Cupric with acid. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CL2009001736A CL2009001736A1 (en) | 2009-08-18 | 2009-08-18 | Process of metallurgical recovery of copper from acidic incoming solutions with low copper content, and which comprises using inputs produced in situ such as sulfhydric acid or peroxy-sulfuric acid, precipitation of copper from the incoming solution with h2s, solid-liquid separation and sulfur leaching Cupric with acid. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CL2009001736A1 true CL2009001736A1 (en) | 2011-04-01 |
Family
ID=66220902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CL2009001736A CL2009001736A1 (en) | 2009-08-18 | 2009-08-18 | Process of metallurgical recovery of copper from acidic incoming solutions with low copper content, and which comprises using inputs produced in situ such as sulfhydric acid or peroxy-sulfuric acid, precipitation of copper from the incoming solution with h2s, solid-liquid separation and sulfur leaching Cupric with acid. |
Country Status (1)
| Country | Link |
|---|---|
| CL (1) | CL2009001736A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9683277B2 (en) | 2013-09-24 | 2017-06-20 | Likivia Process Metalúrgicos SPA | Process for preparing a ferric nitrate reagent from copper raffinate solution and use of such reagent in the leaching and/or curing of copper substances |
-
2009
- 2009-08-18 CL CL2009001736A patent/CL2009001736A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9683277B2 (en) | 2013-09-24 | 2017-06-20 | Likivia Process Metalúrgicos SPA | Process for preparing a ferric nitrate reagent from copper raffinate solution and use of such reagent in the leaching and/or curing of copper substances |
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