DOP2005000122A - PROCESSING OF MATERIALS THAT CONSUME ACIDS, THAT IMPLIES A TREATMENT WITH EFFLUENTS OF ACIDIC BIOOXIDATION - Google Patents

PROCESSING OF MATERIALS THAT CONSUME ACIDS, THAT IMPLIES A TREATMENT WITH EFFLUENTS OF ACIDIC BIOOXIDATION

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Publication number
DOP2005000122A
DOP2005000122A DO2005000122A DO2005000122A DOP2005000122A DO P2005000122 A DOP2005000122 A DO P2005000122A DO 2005000122 A DO2005000122 A DO 2005000122A DO 2005000122 A DO2005000122 A DO 2005000122A DO P2005000122 A DOP2005000122 A DO P2005000122A
Authority
DO
Dominican Republic
Prior art keywords
biooxidation
treatment
consume
gold
acidic
Prior art date
Application number
DO2005000122A
Other languages
Spanish (es)
Inventor
James A Brierley
Fritz-Peter Sawyer
Original Assignee
Newmont Usa 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 Newmont Usa Ltd filed Critical Newmont Usa Ltd
Publication of DOP2005000122A publication Critical patent/DOP2005000122A/en

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  • Removal Of Specific Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

En un aspecto la presente invención proporciona un método de recuperación de oro de al menos dos diferentes materiales minerales sulfídicos refractarios que contienen oro. Un primer material mineral se somete a un tratamiento previo de biooxidación para liberar el oro guardado contenido en los sulfuro minerales. La biooxidación produce un efluente de licor de biooxidación ácida que contiene hierro disuelto significativo en forma férrica. La totalidad o una porción del efluente del licor de biooxidación se usa como un líquido de tratamiento ácido para tratar el segundo material mineral, que contiene minerales que consumen ácido. Durante el tratamiento, los minerales que consumen ácido reaccionan con la solución ácida, elevando el pH de la solución y produciendo una reducción en la solubilidad y precipitando el hierro disuelto y otros metales. También durante el tratamiento, los sulfuros en el segundo material mineral u oxidados, liberan oro para su posterior recuperación. MP-MG-LU-CL-RM/BM1866A5/72,OppIn one aspect the present invention provides a method of recovering gold from at least two different refractory sulfide mineral materials containing gold. A first mineral material is subjected to a previous biooxidation treatment to release the stored gold contained in the mineral sulphides. Biooxidation produces an acidic biooxidation liquor effluent that contains significantly dissolved iron in iron form. All or a portion of the effluent from the biooxidation liquor is used as an acid treatment liquid to treat the second mineral material, which contains minerals that consume acid. During the treatment, the minerals that consume acid react with the acid solution, raising the pH of the solution and producing a reduction in solubility and precipitating dissolved iron and other metals. Also during the treatment, the sulphides in the second mineral material or oxidized, release gold for later recovery. MP-MG-LU-CL-RM / BM1866A5 / 72, Opp

DO2005000122A 2004-07-01 2005-06-30 PROCESSING OF MATERIALS THAT CONSUME ACIDS, THAT IMPLIES A TREATMENT WITH EFFLUENTS OF ACIDIC BIOOXIDATION DOP2005000122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58460204P 2004-07-01 2004-07-01

Publications (1)

Publication Number Publication Date
DOP2005000122A true DOP2005000122A (en) 2006-01-05

Family

ID=40635439

Family Applications (1)

Application Number Title Priority Date Filing Date
DO2005000122A DOP2005000122A (en) 2004-07-01 2005-06-30 PROCESSING OF MATERIALS THAT CONSUME ACIDS, THAT IMPLIES A TREATMENT WITH EFFLUENTS OF ACIDIC BIOOXIDATION

Country Status (2)

Country Link
DO (1) DOP2005000122A (en)
PE (1) PE20060751A1 (en)

Also Published As

Publication number Publication date
PE20060751A1 (en) 2006-08-12

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