PE20080297A1 - ELECTRO-HYDROMETALLURGICAL ALKALINE PROCESS FOR THE EXTRACTION OF ZN FROM ELECTRIC OVEN DUST - Google Patents
ELECTRO-HYDROMETALLURGICAL ALKALINE PROCESS FOR THE EXTRACTION OF ZN FROM ELECTRIC OVEN DUSTInfo
- Publication number
- PE20080297A1 PE20080297A1 PE2007000658A PE2007000658A PE20080297A1 PE 20080297 A1 PE20080297 A1 PE 20080297A1 PE 2007000658 A PE2007000658 A PE 2007000658A PE 2007000658 A PE2007000658 A PE 2007000658A PE 20080297 A1 PE20080297 A1 PE 20080297A1
- Authority
- PE
- Peru
- Prior art keywords
- solution
- wash
- separate
- bargain
- fraction
- Prior art date
Links
- 238000000605 extraction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000000243 solution Substances 0.000 abstract 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 3
- 238000002386 leaching Methods 0.000 abstract 3
- 239000007787 solid Substances 0.000 abstract 3
- 239000012670 alkaline solution Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 238000001179 sorption measurement Methods 0.000 abstract 2
- 239000011701 zinc Substances 0.000 abstract 2
- 229910052725 zinc Inorganic materials 0.000 abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 1
- 229910052785 arsenic Inorganic materials 0.000 abstract 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 abstract 1
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 239000002659 electrodeposit Substances 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005325 percolation Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000010926 purge Methods 0.000 abstract 1
- 239000000741 silica gel Substances 0.000 abstract 1
- 229910002027 silica gel Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
QUE COMPRENDE: a) ACONDICIONAR LA HUMEDAD DEL POLVO DE HORNO ELECTRICO (ENTRE 5% Y 10%) PARA SU TRANSPORTE Y MANEJO; b) LIXIVIAR DICHO POLVO) CON UNA SOLUCION ALCALINA; c) SEPARAR EL LIQUIDO DE LA GANGA AGOTADA Y LAVAR LA GANGA AGOTADA; d) INERTIZAR LA GANGA DE LIXIVIACION TRATANDOLA CON UNA MEZCLA QUE CONTIENE, EN BASE A LA GANGA SECA: i) DE 0,02 A 5% DE SiO2 (PUZOLANA, BENTONITA O SILICA GEL); ii) DE 0,5% A 3% DE Ca(H2PO4)4H2O; Y, iii) DE 0,2% A 0,8% DE Ca(OH)2; QUEDANDO LA MASA FORMADA CON UN CONTENIDO DE HUMEDAD ENTRE 15% Y 25% LA CUAL SE MEZCLA EN UN EQUIPO TIPO BETONERA HASTA HOMOGENEIDAD Y LUEGO SE SECA HASTA UN CONTENIDO DE HUMEDAD DE 10%; e) PURIFICAR EL LIQUIDO DE (c) POR CEMENTACION, SEPARARLO DE LOS SOLIDOS PRECIPITADOS Y LAVAR ESTOS SOLIDOS; f) PURIFICAR POR ADSORCION LA SOLUCION OBTENIDA DELA CEMENTACION; g) EVAPORAR UNA FRACCION DE LA SOLUCION PURIFICADA; h) CRISTALIZAR UNA FRACCION DE LA SOLUCION CONCENTRADA ANTERIOR; i) EVAPORAR PARCIALMENTE LA SOLUCION PURA DE (e) Y PURGAR UNA FRACCION DE LA SOLUCION CONCENTRADA OBTENIDA; j) ELECTRODEPOSITAR EL ZINC DESDE LA SOLUCION CONCENTRADA OBTENIDA; k) SEPARAR, LAVAR Y SECAR EL ZINC DEPOSITADO; l) SEPARAR EL POLVO DE ZINC DE LA SOLUCION DE CINCATOS; Y, m) LAVAR EN ETAPAS SUCESIVAS CON SODA Y AGUA LOS SOLIDOS SEPARADOS LUEGO DE (b), (e) Y (j). LA SOLUCION ALCALINA SE SOMETE A ADSORCION POR PERCOLACION CON Ba(OH)2 PARA ELIMINAR EL ARSENICO. LA SOLUCION LIXIVIANTE SE CRISTALIZA POR EVAPORACIONWHICH INCLUDES: a) CONDITIONING THE MOISTURE OF THE ELECTRIC OVEN DUST (BETWEEN 5% AND 10%) FOR ITS TRANSPORTATION AND HANDLING; b) LEACHING SAID POWDER) WITH AN ALKALINE SOLUTION; c) SEPARATE THE LIQUID FROM THE SOLD OUT BARGAIN AND WASH THE SOLD OUT BARGAIN; d) INERT THE LEACHING BARE BY TREATING IT WITH A MIXTURE THAT CONTAINS, BASED ON THE DRY BARGAIN: i) FROM 0.02 TO 5% SiO2 (PUZOLANA, BENTONITE OR SILICA GEL); ii) FROM 0.5% TO 3% OF Ca (H2PO4) 4H2O; And, iii) FROM 0.2% TO 0.8% OF Ca (OH) 2; LEAVING THE MASS FORMED WITH A MOISTURE CONTENT BETWEEN 15% AND 25% WHICH IS MIXED IN A BETONERA TYPE EQUIPMENT UNTIL HOMOGENEITY AND THEN DRIES UP TO A MOISTURE CONTENT OF 10%; e) PURIFY THE LIQUID FROM (c) BY CEMENTATION, SEPARATE IT FROM THE PRECIPITATED SOLIDS AND WASH THESE SOLIDS; f) PURIFY THE SOLUTION OBTAINED FROM THE CEMENTATION BY ADSORPTION; g) EVAPORATE A FRACTION OF THE PURIFIED SOLUTION; h) CRYSTALLIZE A FRACTION OF THE PREVIOUS CONCENTRATED SOLUTION; i) PARTIALLY EVAPORATE THE PURE SOLUTION OF (e) AND PURGE A FRACTION OF THE CONCENTRATED SOLUTION OBTAINED; j) ELECTRODEPOSIT THE ZINC FROM THE CONCENTRATED SOLUTION OBTAINED; k) SEPARATE, WASH AND DRY THE DEPOSITED ZINC; l) SEPARATE THE ZINC POWDER FROM THE ZINCATE SOLUTION; AND, m) WASH THE SOLIDS SEPARATED AFTER (b), (e) AND (j) WITH SODA AND WATER IN SUCCESSIVE STAGES. THE ALKALINE SOLUTION IS SUBJECT TO ADSORPTION BY PERCOLATION WITH Ba (OH) 2 TO REMOVE ARSENIC. THE LEACHING SOLUTION IS CRYSTALIZED BY EVAPORATION
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CL2006001824 | 2006-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PE20080297A1 true PE20080297A1 (en) | 2008-03-27 |
Family
ID=40941294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PE2007000658A PE20080297A1 (en) | 2006-07-12 | 2007-05-28 | ELECTRO-HYDROMETALLURGICAL ALKALINE PROCESS FOR THE EXTRACTION OF ZN FROM ELECTRIC OVEN DUST |
Country Status (3)
| Country | Link |
|---|---|
| ES (1) | ES2403360T3 (en) |
| MX (1) | MX2007005357A (en) |
| PE (1) | PE20080297A1 (en) |
-
2006
- 2006-11-27 ES ES06124793T patent/ES2403360T3/en active Active
-
2007
- 2007-05-03 MX MX2007005357A patent/MX2007005357A/en active IP Right Grant
- 2007-05-28 PE PE2007000658A patent/PE20080297A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| ES2403360T3 (en) | 2013-05-17 |
| MX2007005357A (en) | 2008-10-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FC | Refusal |