CU23489A3 - PROCESS OF LIXIVIATION IN THE PRESENCE OF CHLORIDE ACID FOR THE RECOVERY OF A VALUABLE METAL OF A MINERAL - Google Patents

PROCESS OF LIXIVIATION IN THE PRESENCE OF CHLORIDE ACID FOR THE RECOVERY OF A VALUABLE METAL OF A MINERAL

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Publication number
CU23489A3
CU23489A3 CU20080102A CU20080102A CU23489A3 CU 23489 A3 CU23489 A3 CU 23489A3 CU 20080102 A CU20080102 A CU 20080102A CU 20080102 A CU20080102 A CU 20080102A CU 23489 A3 CU23489 A3 CU 23489A3
Authority
CU
Cuba
Prior art keywords
metal
leaching
valuable metal
hydrochloric acid
mineral
Prior art date
Application number
CU20080102A
Other languages
Spanish (es)
Inventor
Johann Du Toit Steyl
Jan Tjeerd Smit
Original Assignee
Anglo Operations Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anglo Operations Ltd filed Critical Anglo Operations Ltd
Priority to CU20080102A priority Critical patent/CU23489A3/en
Publication of CU23489A3 publication Critical patent/CU23489A3/en

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

Se describe un proceso para lixiviar un metal valioso de un mineral que contiene dicho metal valioso, el proceso incluye las etapas de lixiviar el mineral en la presencia de ácido clorhídrico con el fin de formar una sal de cloruro de metal soluble en una solución de lixiviación; agregar ácido sulfúrico y/o dióxido de azufre a la solución de lixiviación; recuperar una sal de sulfato de metal o sulfito de metal de la solución de lixiviación; regenerar el ácido clorhídrico; y transferir continuamente al menos una porción del ácido clorhídrico regenerado en solución a la fase de vapor. El ácido clorhídrico vaporizado es entonces capturado y devuelto a la etapa de lixiviación. Se puede agregar ácido sulfúrico y/o dióxido de ázufre a la solución de lixiviación o después de la etapa de lixiviación. El metal valioso se selecciona típicamente del grupo consistente de Zn, Cu, Ti, Al, Cr, Ni, Co, Mn, Fe, Pb, Na, K, Ca, metales del grupo del platino y oro. El metal en la sal de sulfato o sulfito de metal puede ser el metal valioso, o puede ser un metal de menos valor que el metal valioso, tal como magnesio.A process for leaching a valuable metal from a mineral containing said valuable metal is described, the process includes the steps of leaching the mineral in the presence of hydrochloric acid in order to form a soluble metal chloride salt in a leaching solution. ; add sulfuric acid and / or sulfur dioxide to the leaching solution; recovering a metal sulfate or metal sulphite salt from the leaching solution; regenerate hydrochloric acid; and continuously transfer at least a portion of the regenerated hydrochloric acid in solution to the vapor phase. The vaporized hydrochloric acid is then captured and returned to the leaching stage. Sulfuric acid and / or sulfur dioxide can be added to the leaching solution or after the leaching stage. The valuable metal is typically selected from the group consisting of Zn, Cu, Ti, Al, Cr, Ni, Co, Mn, Fe, Pb, Na, K, Ca, platinum group metals and gold. The metal in the metal sulfate or sulphite salt may be the valuable metal, or it may be a less valuable metal than the valuable metal, such as magnesium.

CU20080102A 2008-05-28 2008-05-28 PROCESS OF LIXIVIATION IN THE PRESENCE OF CHLORIDE ACID FOR THE RECOVERY OF A VALUABLE METAL OF A MINERAL CU23489A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CU20080102A CU23489A3 (en) 2008-05-28 2008-05-28 PROCESS OF LIXIVIATION IN THE PRESENCE OF CHLORIDE ACID FOR THE RECOVERY OF A VALUABLE METAL OF A MINERAL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CU20080102A CU23489A3 (en) 2008-05-28 2008-05-28 PROCESS OF LIXIVIATION IN THE PRESENCE OF CHLORIDE ACID FOR THE RECOVERY OF A VALUABLE METAL OF A MINERAL

Publications (1)

Publication Number Publication Date
CU23489A3 true CU23489A3 (en) 2010-02-23

Family

ID=42628495

Family Applications (1)

Application Number Title Priority Date Filing Date
CU20080102A CU23489A3 (en) 2008-05-28 2008-05-28 PROCESS OF LIXIVIATION IN THE PRESENCE OF CHLORIDE ACID FOR THE RECOVERY OF A VALUABLE METAL OF A MINERAL

Country Status (1)

Country Link
CU (1) CU23489A3 (en)

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