Processing an ultramafic ore using fiber disintegration by acid attack

Uddin, Shahid; Rao, S. Ramachandra; Mirnezami, M.; Finch, J.A.

doi:10.1016/j.minpro.2011.09.015

Cited by 31 publications

(16 citation statements)

References 20 publications

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“…Fibrous chrysotile is a complex clay mineral and it is present in some nickel ores in Western Australia and in Canada . Its distinctive shape plays a more significant role in rheology than its surface charge and can produce high viscosities even at low concentrations in slurries (e.g., 0.5 vol%) …”

Section: Slurry Rheology and The Influence Of Colloidal Size Particlesmentioning

confidence: 99%

“…These minerals are associated with a wide range of host rocks and mineral types . For instance, kaolinite, chlorite, illite, and montmorillonite can be present in many porphyry copper deposits (e.g., porphyry ore deposits in Chile range from simple kaolinite to complex chamosite/illite clay minerals), and serpentine is found in some nickel sulphide ores in Western Australia and in Canada . Particularly in Canada, in the Thompson Nickel belt in Manitoba, there are large resources of nickel ores (150 Mt), and a significant amount of those reserves consist of low‐grade ultramafic nickel sulphide ores that contain serpentine .…”

Section: Introductionmentioning

confidence: 99%

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Slurry rheology in mineral processing unit operations: A critical review

2019

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Knowledge of slurry rheology in mineral processing is essential for the optimization of wet-grinding, dewatering, transport, and tailings management and it is becoming important in flotation due to the increasing need to process complex ores with a high clay mineral content. Slurries of these ores often display complex rheological behaviour even at low solids concentration, and traditional rheology measurements in mineral processing, such as yield stress and apparent viscosities, may not provide the critical information needed for process optimization. The objective of this paper is to provide a comprehensive review of some of the previous rheology studies performed at the bench, pilot plant, and industrial scale for different unit operations and to discuss the potential for alternative rheology measurements to provide a better insight into colloidal particle interactions in slurries with clay minerals. Firstly, the fundamentals of slurry rheology and the influence of colloidal particles are presented. Secondly, rheology measurements for suspensions are described briefly. Thirdly, a review of rheology studies in grinding, classification, flotation, dewatering, and tailings management is done, outlining possible ways of determining types of particle associations in slurries. Finally, recommendations for future research directions are provided.

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Section: Slurry Rheology and The Influence Of Colloidal Size Particlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Slurry rheology in mineral processing unit operations: A critical review

2019

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“…The combination of two pre-treatment methods, such thermal-chemical activation [49], chemical-mechanical activation [50], thermal-mechanical activation [51] can achieve unexpected activation effects. Except for the above mentioned pre-treatment methods, some novel processes for enhancing the rate of mineral carbonation have been proposed for waste materials [52].…”

Section: Pre-treatmentmentioning

confidence: 99%

“…Recovery of nickel before carbonation is recommended [107]. Uddin et al [50] used a combination of chemical (H 2 SO 4 ) and mechanical (grinding) treatment to disintegrate the chrysotile fibers in low grade nickel ore, which reduced the pulp viscosity and enhanced the nickel recovery in downstream flotation. At the same time, the generated MgO-rich tails are potential candidate for CO 2 capture and sequestration.…”

Section: Ex-situ Mineral Carbonationmentioning

confidence: 99%

“…At the same time, the generated MgO-rich tails are potential candidate for CO 2 capture and sequestration. Figure 5 shows the relationship between nickel recovery and MgO rejection before and after pretreatment [50]. For the same purpose, Bobicki et al [118,119] destroyed the serpentine content in low grade nickel ore using microwave treatment.…”

Section: Ex-situ Mineral Carbonationmentioning

confidence: 99%

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Integrated Mineral Carbonation of Ultramafic Mine Deposits—A Review

Hitch

Power

et al. 2018

Minerals

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Recently, integrated mineral carbonation for CO 2 sequestration has received significant attention due to the high potential for commercialization towards mitigating climate change. This review compiles the work conducted by various researchers over the last few years on integrated mineral carbonation processes in the mining industry, which use ultramafic mine wastes as feedstock for mineral carbonation. Here, we introduce the basic concepts of mineral carbonation including a brief description of the process routes and pre-treatment techniques. We discuss the scope of integrated mineral carbonation process application, and critically review the integrated mineral carbonation process in the mining industry including modified passive carbonation techniques in tailing storage facilities, and ex-situ carbonation routes using fresh tailings. The focus of the discussions is the role of reaction condition on the carbonation efficiency of mine waste with various mineralogical compositions, and the benefits and drawbacks of each integrated mineral carbonation process. All discussions lead to suggestions for the technological improvement of integrated mineral carbonation. Finally, we review the techno-economic assessments on existing integrated mineral carbonation technologies. Research to date indicates that value-added by-products will play an important role in the commercialization of an integrated mineral carbonation process.

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The formation of fungus-serpentine aggregation and its immobilization of lead(II) under acidic conditions

Zhang

Syed

et al. 2021

Appl Microbiol Biotechnol

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Processing an ultramafic ore using fiber disintegration by acid attack

Cited by 31 publications

References 20 publications

Slurry rheology in mineral processing unit operations: A critical review

Slurry rheology in mineral processing unit operations: A critical review

Integrated Mineral Carbonation of Ultramafic Mine Deposits—A Review

The formation of fungus-serpentine aggregation and its immobilization of lead(II) under acidic conditions

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