copper mining bioleaching

copper mining bioleaching

Application of bioleaching to copper mining in Chile

2013-5-16 · Early application of bioleaching to copper mining centred in its recovery from dumps (Gentina and Acevedo, 1985; Acevedo, 2002). This is a low technology process and renders low productivities and recoveries. Nevertheless, dump bioleaching is economical, mainly because it recovers copper

Bioleaching of Copper Mining Residues by Aspergillus

Bioleaching is a promising technology as 18-20% of global copper production is by mineral acid heap bioleaching [12] and it has been well exploited in mining lowgrade ores [13] [14][15][16]. ...

Effective bioleaching of low-grade copper ores: Insights ...

2020-7-1 · 1. Introduction. The copper mine industry is facing with the need to process low-grade ores using low-cost technologies to meet global demand unceasingly (Faramarzi et al., 2020).As an economical and environmental friendly method, bioleaching has been exploited to liberate metals, such as copper, iron and nickel, from low-grade ores in some mining area (Panda et al., 2015).

(PDF) BIOLEACHING OF COPPER FROM CARAIBA MINE

The bioleaching of copper ore from the Caraiba Mine was assessed. A microorganism, Acidiothiobacillus ferrooxidans, was isolated from samples collected directly in acid

COPPER BIOLEACHING | Wang Leiming | 1 updates | 6 ...

The highest bacteria concentration reached 9.54 × 107 cells·mL-1 with an increase by 69.15%. And a maximum of 95.32% copper leaching rate with a relatively low Fe3+ concentration (329.00 mg·L-1 ...

Research progress in enhanced bioleaching of copper ...

2019-5-7 · Compared with the traditional pyrometallurgical process, copper bioleaching has distinctive advantages of high efficiency and lower cost, enabling efficiently extracts of valuable metal resources from copper sulfides. Moreover, during long-term industrial applications of bioleaching, many regulatory enhancements and technological methods are used to accelerate the interfacial reactions.

Biomining: metal recovery from ores with microorganisms

Biomining is an increasingly applied biotechnological procedure for processing of ores in the mining industry (biohydrometallurgy). Nowadays the production of copper from low-grade ores is the most important industrial application and a significant part of world copper production already originates from heap or dump/stockpile bioleaching.

Bioleaching: Introduction, Methods, Application, Copper ...

1 天前 · Bioleaching: Introduction, Methods, Application, Copper, Microorganisms, and Processes! Introduction to Bioleaching: Leaching process was first observed in pumps and pipelines installed in mine pits containing acid water. This process was later on employed for recovering metals from ores containing low quantity of the metal. Presently certain metals from sulfide ores and other ores are ...

(PDF) Bioleaching: A microbial process of metal recovery ...

6, 14 The modern era of biomining started with leaching of copper run-of-mine waste rocks (Dump leaching) in USA during mid-1960s. 14 In-situ bioleaching of uranium

Application of bioleaching to copper mining in Chile

2013-5-16 · Early application of bioleaching to copper mining centred in its recovery from dumps (Gentina and Acevedo, 1985; Acevedo, 2002). This is a low technology process and renders low productivities and recoveries. Nevertheless, dump bioleaching is economical, mainly because it recovers copper

Bioleaching of Copper Mining Residues by Aspergillus

Bioleaching is a promising technology as 18-20% of global copper production is by mineral acid heap bioleaching [12] and it has been well exploited in mining lowgrade ores [13] [14][15][16]. ...

(PDF) Application of bioleaching to copper mining in Chile

Early a pplication of bioleaching to copper mining centred in its recovery from dumps (Genti na and Acevedo, 1985; Acevedo, 2002). This is a low technology process and renders low produ ctivities and

(PDF) BIOLEACHING OF COPPER FROM CARAIBA MINE

The bioleaching of copper ore from the Caraiba Mine was assessed. A microorganism, Acidiothiobacillus ferrooxidans, was isolated from samples collected directly in acid mining drainage in a gold ...

Research progress in enhanced bioleaching of copper ...

2019-5-7 · Compared with the traditional pyrometallurgical process, copper bioleaching has distinctive advantages of high efficiency and lower cost, enabling efficiently extracts of valuable metal resources from copper sulfides. Moreover, during long-term industrial applications of bioleaching, many regulatory enhancements and technological methods are used to

Integrated bioleaching-electrometallurgy for copper ...

2021-4-1 · Copper low abundance, its higher competition with other metals and its higher ionic strength, may hinder the Cu extraction process via bioleaching. For this attempt, the Bioelectrochemical System (BES); a synergistic association of microbiological and electrochemical concept, was proposed as a promising alternative ( Logan and Rabaey, 2012 ).

Bioleaching of copper from chalcopyrite ore at higher NaCl ...

Although bioleaching by some bacteria has some drawbacks such as greater sensitivity of their cell wall to higher pulp densities, lower metal tolerance capacity, and energy-intensive (thermal) process, using bacteria in heap leaching of low-grade copper sulfides can offer several advantages: Moderate capital investment with low operating costs ...

Biomining: metal recovery from ores with microorganisms

Biomining is an increasingly applied biotechnological procedure for processing of ores in the mining industry (biohydrometallurgy). Nowadays the production of copper from low-grade ores is the most important industrial application and a significant part of world copper production already originates from heap or dump/stockpile bioleaching.

Bioleaching: Introduction, Methods, Application, Copper ...

1 天前 · Bioleaching: Introduction, Methods, Application, Copper, Microorganisms, and Processes! Introduction to Bioleaching: Leaching process was first observed in pumps and pipelines installed in mine pits containing acid water. This process was later on employed for recovering metals from ores containing low quantity of the metal. Presently certain metals from sulfide ores and other

(PDF) Bioleaching: A microbial process of metal recovery ...

6, 14 The modern era of biomining started with leaching of copper run-of-mine waste rocks (Dump leaching) in USA during mid-1960s. 14 In-situ bioleaching of uranium from extract residual uranium ...

Bioleaching of Copper | SpringerLink

Abstract. Natural bioleaching has been taking place for almost as long as the history of the world, but it is only in the last few decades that we have realized that bioleaching is responsible for acid production in some mining wastes, and that this bacterial activity can be used to liberate some metals.

Bioleaching of Copper Mining Residues by Aspergillus

Bioleaching is a promising technology as 18-20% of global copper production is by mineral acid heap bioleaching [12] and it has been well exploited in mining lowgrade ores [13] [14][15][16]. ...

(PDF) Application of bioleaching to copper mining in Chile

Early a pplication of bioleaching to copper mining centred in its recovery from dumps (Genti na and Acevedo, 1985; Acevedo, 2002). This is a low technology process and renders low produ ctivities and

Application of bioleaching to copper mining in Chile - SciELO

Application of bioleaching to copper mining in Chile. Juan Carlos Gentina* 1 · Fernando Acevedo 1 1 Pontificia Universidad Católica de Valparaíso, Facultad de Ingeniería, Escuela de Ingeniería Bioquímica, Valparaíso, Chile *Corresponding author: [email protected] Keywords: dumps, heap leaching, hydrometallurgy, leaching microorganisms, pyrometallurgy.

Integrated bioleaching-electrometallurgy for copper ...

2021-4-1 · Copper low abundance, its higher competition with other metals and its higher ionic strength, may hinder the Cu extraction process via bioleaching. For this attempt, the Bioelectrochemical System (BES); a synergistic association of microbiological and electrochemical concept, was proposed as a promising alternative ( Logan and Rabaey, 2012 ).

Bioleaching of low-grade copper sulfide ore by extremely ...

2020-6-10 · The effects of introducing M. sedula derivatives having different Cu2+-resistance on bioleaching capacity of a defined consortium (consisting of A. brierleyi DSM1651 and M. hakonensis HO1-1) were studied in column reactors at 70 °C. Introducing M. sedula copA mutant, a copper sensitive derivative, only had negligible effects on bioleaching. While introducing M. sedula ARS50-2, a Cu2 ...

Review and prospects of bioleaching in the Chinese mining ...

2021-9-13 · As the world’s second largest economy experiencing rapid economic growth, China has a huge demand for metals and energy. In recent years, China ranks first, among all the countries in the world, in the production and consumption of several metals such as copper, gold, and rare earth elements. Bioleaching, which is an approach for mining low grade and refractory ores, has been

Overview of fungal bioleaching of metals - ScienceDirect

2021-10-1 · Bioleaching of copper and other metals from low-grade oxidized mining ores by Aspergillus niger J. Chem. Technol. Biotechnol. , 78 ( 2003 ) , pp. 497 - 503 , 10.1002/jctb.830 CrossRef View Record in Scopus Google Scholar

1) Key Laboratory of Ministry of Education for High ...

2021-4-27 · copper sulphide bioleaching. 2 Materials and methods 2.1. Characterization of ore sample The copper ore for this work were derived from a copper mine in Fujian province, China. Then the detailed chemical compositions were obtained by selective dissolved experiments through Chinese Academy of Sciences.

四川里伍铜矿尾矿生物浸出液中回收铜、锌的研究

2016-7-3 · The copper and zinc in the bioleaching solution of LiWu copper mine were recover effectively by the “extraction and precipitation” technological process. Key Laboratory of solid waste treatment and reuse of Ministry of education, Southwest University of Science and Technology