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Bioleaching Of Low Grade Nickel Sulfide Mineral In

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Jinchuan low grade nickel (0.4%–0.6% Ni, mass fraction) sulfide mineral ore contains a remarkably high content of magnesia (30%–35% MgO, mass fraction) present in the main gangue minerals.

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Abstract. This study investigated thermophilic bioleaching of a low grade nickel-copper sulfide using mixture of four acidophilic thermophiles. Effects of 0.2g/L l-cysteine on the bioleaching process were further evaluated. It aimed at offering new alternatives for

Bioleaching of low grade nickel sulfide mineral in column ...

Oct 24, 2012 · So far, columnbioleaching work,bioleaching processJinchuan low grade sulfide mineral ore using column reactor ambienttemperature. Mixed mesophiles were used experimentconsidering mixedbacteria were better than pure bacteria [13]. usingbioleaching recovervaluable metals from Jinchuan low grade nickel sulfide mineral ore. methods2.1 ...

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Aug 01, 2009 · About 200 kg of the Jinchuan low-grade nickel sulfide ore was loaded in a column reactor and an extraction of nickel (91.2%) and cobalt (81.0%) was achieved after 312 days of leaching, which included 60 days of acid pre-leaching and 252 days of bioleaching.

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Feb 01, 2014 · 1. Introduction. The worldwide growing demand for nickel and copper has generated interest in the development of new processes suitable for low grade complex ores (Watling, 2008).Bioleaching has been proved to be an effective, low-cost and eco-friendly way to process many sulfide ores which are difficult to process by conventional techniques (Mishra et al., 2005).

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May 01, 2009 · This work investigates the bioleaching of Jinchuan low grade nickel-bearing sulfide ore containing rather high levels of olivine, chlorite and antigorite (MgO 30–35%) present in the main gangue minerals using a mixed mesophiles which are composed of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans. It aims to test the technical feasibility to recover valuable metals from ...

Bioleaching of low grade nickel sulfide mineral in column ...

Bioleaching of low grade nickel sulfide mineral in column reactor ZHEN Shi-jie(甄世杰)1, 2, QIN Wen-qing(覃文庆)1, YAN Zhong-qiang(闫忠强)2, ZHANG Yan-sheng(张雁生)1, WANG Jun(王 1 军)1, REN Liu-yi(任浏祎) 1. School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China;

Bioleaching of low grade nickel sulfide mineral in column ...

Jinchuan low grade nickel (0.4%–0.6% Ni, mass fraction) sulfide mineral ore contains a remarkably high content of magnesia (30%–35% MgO, mass fraction) present in the main gangue minerals.

Bioleaching of a low-grade nickel–copper sulfide by ...

Feb 01, 2014 · 1. Introduction. The worldwide growing demand for nickel and copper has generated interest in the development of new processes suitable for low grade complex ores (Watling, 2008).Bioleaching has been proved to be an effective, low-cost and eco-friendly way to process many sulfide ores which are difficult to process by conventional techniques (Mishra et al., 2005).

Leaching of a low-grade, copper-nickel sulfide ore. 1. Key ...

1 Leaching of a low-grade, copper-nickel sulfide ore. 1. Key parameters impacting on Cu recovery during column bioleaching H.R. Watling1*, A.D. Elliot,1 M. Maley,2 W. van Bronswijk2 and C. Hunter3 1 AJ Parker Cooperative Research Centre for Integrated Hydrometallurgy Solutions, CSIRO Minerals, PO Box 7229, Karawara, Western Australia 6152

Minerals | Special Issue : Bioleaching from Sulfide Minerals

The feasibility of processing low-grade copper-nickel ores by heap bioleaching was investigated. It was found that an iron-oxidizing strain of acidophilic microorganisms, Acidithiobacillus ferrivorans, is effective in the leaching of sulfide ores from the deposits in Russia’s Murmansk region.Sulfide mineralization of the studied mineral feeds was described using the methods of X-ray phase ...

Enhanced methods for nickel recovery from low-grade ores ...

Bioleaching is another process that is being looked at for low-grade ores, ideal for reworking waste dumps. This method, under atmospheric pressure, is being used in the Talvivaara project in Finland, a sulfide mineral resource of only 0.27% Ni. Low-grade ores, like nickel sulfide, are abundant on Earth.

ALTA MetBytes - Bioleaching Moves into Nickel

p® tank bioleaching technology to recover the nickel while rejecting the arsenic as a stable iron/arsenic hydroxide (7). Sodium sulphide is used to precipitate the nickel as high grade nickel sulphide (at approximately 50% nickel) that can be blended with final concentrate to improve nickel grades and recoveries, while simultaneously reducing ...

Metals Extraction from Sulfide Ores with Microorganisms ...

Jan 02, 2019 · Additionally, for gold and copper extractions, bioleaching is used to extract cobalt, zinc, nickel, and uranium from low-grade ores and industrial effluents. In this review, the fundamental process of bioleaching from low-grade metal sulfide ores are discussed with emphasis on mechanism, types, pathways, techniques, and bioleaching development.

(PDF) Bioleaching for Nanoparticle Production as a ...

By production applying the bioleaching technique, the Bioleaching is a process in mining that sulfide film is removed and gold extracts valuable metals from a low- recovery is obtained (11). grade ore with the help of biological systems like microorganisms.

Hydrometallurgical Processing of Low-Grade Sulfide Ore

Sulfide minerals, including metals of the platinum group (Pt, Rh, Ru, Pd, Os, and Ir) can be also subjected to preprocessing with microorganisms [20]. In recent decade, pilot tests on heap leaching of low-grade copper and nickel sulfide ores were launched (the mines involved are Radio Hill in the

sulfide mineral - Globe Thesis - Globe Thesis

The Synchronous Hydrophobic Theory And Technology Of Nickel-bearing Sulfide Minerals In Low-grade Nickel Sulfide Ore: 15. The Sorption And Transformation Of Inorganic Contaminants By Biochars And The Underlying Mechanisms: 16. Low-grade Polymetallic Copper-lead-zinc Sulfide Minerals Ore Beneficiation Process Research In Xinjing: 17.

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(PDF) Bioleaching of Low Grade Tellurium Sulfide Mineral

Jinchuan low grade nickel (0.4%–0.6% Ni, mass fraction) sulfide mineral ore contains a remarkably high content of magnesia (30%–35% MgO, mass fraction) present in the main gangue minerals.

Biological and acid leaching of low-grade sulfide ...

Mar 01, 2021 · In this study, the bioleaching of low-grade nickel-copper concentrate was carried out using the nutrient medium containing yeast extract (YE) at temperature range of from 40 to 60°C in order to study the dependence of biooxidation rate and Cu and Ni extraction levels on the temperature and the presence of organic compounds.

Effect of particle size on bioleaching of low-grade nickel ...

This work investigates the bioleaching of Jinchuan low grade nickel-bearing sulfide ore containing rather high levels of olivine, chlorite and antigorite (MgO 30–35%) present in the main gangue ...

Effect of particle size on bioleaching of low-grade nickel ...

particle size on bioleaching of low-grade nickel ore in a column reactor [J]. Journal of Central South University, 2021, ... of the ore heap in bioleaching [21−23]. After mineral corrosion, the residue settles, leading to reduced ... sulfide ore in a column reactor and the effects of

Nickel Bioleaching at Elevated pH: Research and ...

Biohydrometallurgy has broad application prospect in the treatment of low-grade nickel sulfide ore. However, quite a number of nickel sulfide deposits are associated with basic gangue minerals such as contain olivine, serpentine. The high basic gangue minerals will lead to a higher acid consumption and make it difficult to bioleach at pH below 2.5.

Cations stress on low-grade nickel sulfide ore oxidation ...

Dec 23, 2020 · The effects of cations stress of magnesium ion and sodium ion on the low-grade nickel sulfide ore oxidative leaching in simulated sulfuric acid solutions were investigated. This study was performed in two courses, including the effect of the cations on the valuable metals leaching efficiencies of the nickel ore and its influences on the electrochemical oxidation behavior of the nickel ore. The ...

Bioleaching of low-grade copper sulphides

The commercial application of copper bioleaching, an environmentally-friendly approach for low-grade and secondary mineral resources recycling, has increased worldwide since the 2000s.

(PDF) Bioleaching for Nanoparticle Production as a ...

By production applying the bioleaching technique, the Bioleaching is a process in mining that sulfide film is removed and gold extracts valuable metals from a low- recovery is obtained (11). grade ore with the help of biological systems like microorganisms.

张雁生 | Semantic Scholar

Bioleaching of low grade nickel sulfide mineral in column reactor. ... 2008; 低档铜硫化物矿石的 bioleaching 和铜的选择抽取被调查。在煤油溶解的 Lix984 被用作提炼之物。结果证明有选择地沥滤是可能的从由堆沥滤的矿石的铜。

Mechanism of Mg 2+ dissolution from olivine and serpentine ...

Sep 05, 2019 · To inhibit the dissolution of Mg 2+ during the bioleaching process of high-magnesium nickel sulfide ore, the effect of major bi-oleaching factors on the dissolution of Mg 2+ from olivine and serpentine was investigated and kinetics studies were carried out. The results indicated that the dissolution rate-controlling steps are chemical reaction for olivine and internal diffusion for serpentine.

Minerals | Free Full-Text | Processing of Sulfide Copper ...

The feasibility of processing low-grade copper-nickel ores by heap bioleaching was investigated. It was found that an iron-oxidizing strain of acidophilic microorganisms, Acidithiobacillus ferrivorans, is effective in the leaching of sulfide ores from the deposits in Russia’s Murmansk region. Sulfide mineralization of the studied mineral feeds was described using the methods of X-ray phase ...

Producing Copper Nature's Way: Bioleaching

Bioleaching is the extraction of a metal from sulfide ores or concentrates using materials found native to the environment; namely, water, air and microorganisms. In other words, bioleaching is the commercialization of the ability of certain bacteria and archaea, found in nature, to catalyze the oxidation of sulfide minerals.

Minerals | Free Full-Text | Electrochemical Behavior of ...

Efficient extraction of Ni, Co, Cu, and Mn from low-grade and refractory ores is a common technical challenge. The present study proposes an Acidithiobacillus ferrooxidans-coupled leaching of Ni, Cu, Co, and Mn from oceanic polymetallic nodules and low-grade nickel sulfide ore, and focuses on the electrochemical behavior of the ores in simulated bio-leaching solutions. In the dissolution of ...