PE20081331A1 - METHOD OF WASHING FILTRATION MEMBRANES - Google Patents
METHOD OF WASHING FILTRATION MEMBRANESInfo
- Publication number
- PE20081331A1 PE20081331A1 PE2008000159A PE2008000159A PE20081331A1 PE 20081331 A1 PE20081331 A1 PE 20081331A1 PE 2008000159 A PE2008000159 A PE 2008000159A PE 2008000159 A PE2008000159 A PE 2008000159A PE 20081331 A1 PE20081331 A1 PE 20081331A1
- Authority
- PE
- Peru
- Prior art keywords
- solution
- concentration
- leaching agent
- valuable metal
- contaminant
- Prior art date
Links
Abstract
QUE COMPRENDE: a) COMBINAR UN AGENTE LIXIVIADOR CON MATERIAL QUE CONTIENE METAL VALIOSO PARA OBTENER UNA SOLUCION CARGADA DE LIXIVIADOR QUE COMPRENDE EL METAL VALIOSO; b) PASAR UNA PARTE DE LA SOLUCION CARGADA Y/O SOLUCION QUE CONTIENE METAL VALIOSO DERIVADO DE ELLA, A TRAVES DE UNA UNIDAD DE MEMBRANA PARA OBTENER UN RETENTATO QUE INCLUYE LA MAYOR PARTE DEL CONTAMINANTE EN SOLUCION EN DICHAS SOLUCIONES, Y PARA OBTENER UN PERMEATO QUE COMPRENDE AL MENOS LA MAYOR PARTE DEL METAL VALIOSO EN LA PORCION DE DICHAS SOLUCIONES, DONDE DICHAS SOLUCIONES COMPRENDEN UNA PRIMERA CONCENTRACION DE CONTAMINANTE EN SOLUCION Y UNA PRIMERA CONCENTRACION DE AGENTE LIXIVIADOR; Y, c) PASAR UNA SOLUCION DE LAVADO QUE COMPRENDE EL AGENTE LIXIVIADOR, A TRAVES DE LA UNIDAD DE MEMBRANA; DONDE (b) Y (c) SE REALIZAN SEPARADAMENTE EN EL TIEMPO, Y LA SOLUCION DE LAVADO COMPRENDE LA MENOR CANTIDAD DE METAL VALIOSO EN SOLUCION QUE LAS SOLUCIONES; EN DONDE AL MENOS UNO DE LOS SIGUIENTES CASOS ES EFECTIVO: C1) UNA SEGUNDA CONCENTRACION DEL CONTAMINANTE DISUELTO EN LA SOLUCION DE LAVADO NO ES SUPERIOR A 1000% DE LA PRIMERA CONCENTRACION DEL CONTAMINANTE; Y, C2) UNA SEGUNDA CONCENTRACION DE AGENTE LIXIVIADOR EN LA SOLUCION DE LAVADO ES AL MENOS 200% DE LA PRIMERA CONCENTRACION DE AGENTE LIXIVIADOR. LA UNIDAD DE MEMBRANA ES AL MENOS UNA DE UN ULTRAFILTRO, UNA MEMBRANA POROSA DE OSMOSIS INVERSA, UN HIPERFILTRO O UN NANOFILTRO; Y EL CONTAMINANTE DISUELTO ES AL MENOS SULFATO, CARBONATO, FOSFATO O FLUORUROWHICH INCLUDES: a) COMBINE A LEACHING AGENT WITH MATERIAL CONTAINING VALUABLE METAL TO OBTAIN A SOLUTION CHARGED WITH LEACHING AGENT INCLUDING THE VALUABLE METAL; b) PASS A PART OF THE LOADED SOLUTION AND / OR SOLUTION CONTAINING VALUABLE METAL DERIVED FROM IT, THROUGH A MEMBRANE UNIT TO OBTAIN A RETENT THAT INCLUDES THE MOST PART OF THE CONTAMINANT IN SOLUTION IN SUCH SOLUTIONS, AND TO OBTAIN A PERMEATE WHICH INCLUDES AT LEAST THE MAJOR PART OF THE VALUABLE METAL IN THE PORTION OF SUCH SOLUTIONS, WHERE SUCH SOLUTIONS INCLUDE A FIRST CONCENTRATION OF CONTAMINANT IN SOLUTION AND A FIRST CONCENTRATION OF LEACHING AGENT; AND, c) PASS A WASHING SOLUTION THAT INCLUDES THE LEACHING AGENT, THROUGH THE MEMBRANE UNIT; WHERE (b) AND (c) ARE PERFORMED SEPARATELY IN TIME, AND THE WASHING SOLUTION INCLUDES THE LESS AMOUNT OF VALUABLE METAL IN SOLUTION THAN THE SOLUTIONS; IN WHICH AT LEAST ONE OF THE FOLLOWING CASES IS EFFECTIVE: C1) A SECOND CONCENTRATION OF THE DISSOLVED CONTAMINANT IN THE WASHING SOLUTION IS NOT HIGHER THAN 1000% OF THE FIRST CONCENTRATION OF THE CONTAMINANT; AND, C2) A SECOND CONCENTRATION OF LEACHING AGENT IN THE WASHING SOLUTION IS AT LEAST 200% OF THE FIRST CONCENTRATION OF LEACHING AGENT. THE MEMBRANE UNIT IS AT LEAST ONE OF AN ULTRAFILTER, A POROUS MEMBRANE OF REVERSE OSMOSIS, A HYPERFILTER OR A NANOFILTER; AND THE DISSOLVED POLLUTANT IS AT LEAST SULPHATE, CARBONATE, PHOSPHATE OR FLUORIDE
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US95018607P | 2007-07-17 | 2007-07-17 | |
| US11/946,533 US20080128354A1 (en) | 2006-11-30 | 2007-11-28 | Method for washing filtration membranes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PE20081331A1 true PE20081331A1 (en) | 2008-09-17 |
Family
ID=43217134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PE2008000159A PE20081331A1 (en) | 2007-07-17 | 2008-01-18 | METHOD OF WASHING FILTRATION MEMBRANES |
Country Status (1)
| Country | Link |
|---|---|
| PE (1) | PE20081331A1 (en) |
-
2008
- 2008-01-18 PE PE2008000159A patent/PE20081331A1/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD | Application declared void or lapsed |