Intensification of ore concentration and sorption extraction of metals from technogenic raw material

Bochkarev, G. R.; Pushkareva, G. I.; Rostovtsev, V. I.

doi:10.1007/s10913-007-0033-3

Cited by 8 publications

(4 citation statements)

References 7 publications

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“…In addition to numerous studies (Bochkarev et al, 2007;Nagappa and Chandrappa, 2007;Moussavi and Mahmoudi, 2009) on the wastewater treatment using MgO, a few studies (García et al, 2004;Iyengar, 2008;Suzuki et al, 2013;Wang et al, 2015a) have been carried out on the utilisation of MgO for contaminated land remediation. They concluded that MgO is an effective immobilisation agent for soils contaminated by heavy metals and the efficiency can last for a long time due to the low solubility of its hydration product (Mg(OH) 2 , brucite).…”

Section: Introductionmentioning

confidence: 99%

Three-year performance of in-situ solidified/stabilised soil using novel MgO-bearing binders

2016

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A new group of MgO-bearing binders has been developed recently which showed improved sustainability and technical performance compared to Portland cement (PC). However, the application of these MgO-bearing binders in the Solidification/Stabilisation (S/S) techniques is very limited. This study investigates the three-year performance of a highly contaminated soil treated by in-situ S/S using MgO-bearing binders and PC. The core quality, strength, permeability and the leaching properties of the S/S materials were evaluated. The effects of binder composition, addition of inorgano-organo-clay (IOC) and the grout content on the properties of the 3-y S/S materials are discussed. It is found that although MgO alone provided negligible strength to the soil, it is superior in immobilising both inorganic and organic contaminants. Replacing MgO by ground granulated blast-furnace slag (GGBS) significantly enhanced the strength while also performed well in immobilising the contaminants. The improved pH buffering capacity was attributed to the low solubilities of brucite and hydrotalcite-like phases formed in the MgO-bearing binders, and was also the reason for the improved performance in stabilising contaminants. The addition of IOC slightly decreased the strength and the permeability of the S/S materials but inconsistent effect on the contaminant immobilisation was found depending on the binder composition. This study showed no degradation of the S/S materials after 3 y exposure to field conditions and has proved the applicability and the advantages of MgO-bearing binders over PC in S/S.

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Section: Introductionmentioning

confidence: 99%

Three-year performance of in-situ solidified/stabilised soil using novel MgO-bearing binders

2016

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“…Ore pretreatment which includes его milling and dissociation of finely disseminated mineral aggregates is of primary importance for the achievement of maximum metal recovery, including the noble ones [1][2][3]. As a rule, the cost of disintegration and dissociation mineral aggregates significantly exceeds the cost of the succeeding gravitational, flotation and other processes.…”

Section: Ore Pretreatment Advancement On the Basis Of Energy Treatmentmentioning

confidence: 99%

Justification and development of innovative technologies for integrated processing of complex ore and mine waste

et al. 2014

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The article presents the theoretical and experimental research findings aimed to create a basis for the development of innovative integrated processing technologies for complex ore and mine waste. It is found that introduction of nonmechanical energy treatment by an accelerated electron beam in the ore dressing circuits increases rebellious mineral processing data. The features of a flotation unit process are analyzed from the viewpoint of improvement of collecting and selecting abilities of a reagent and relationship between these abilities and molecular structure of the reagent. The authors define flotation activity of reagents and offer a flotation contact formation criterion. It is proved to be effective and promising to use magnesium-and manganese-bearing minerals for sorption purification of mine effluents in order to reduce metal loss in the wastewater discharge and to minimize damage of natural water bodies.

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“…Taking into account chemical and physical properties of gold presented in the tailings, it's important to note that their processing requires a high degree of milling in order to provide most complete release of valuable particles and minerals from waste rock. The solution of above mentioned problems could be found with help of using unconventional methods of opening and subsequent extraction of gold, such as cyanidation, biohydrometallurgy, electropulse treatment of tailings and electrical separation [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Choice of Efficient Technology for Aged Enrichment Tailings Processing

Kozhonov

Maymanova

Kritskii

2019

MSF

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The article is devoted to the development of an efficient technology for the processing of aged tailings of the «Solton-Sary» enrichment plant in Kyrgyzstan. Based on the detailed investigation of initial material, authors select most appropriate technology for processing of technogenic material, considering through gravity separation, flotation and hydrometallurgical methods of processing. The methods of sequential gravity separation/flotation scheme of enrichment and direct cyanidation of initial ore at different regimes are analyzed; advantages of aged tailings agitation leaching are established. Research, presented in the article, could be useful for enrichment plants, which are developing technologies of the waste products processing in order to increase the raw material base.

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Intensification of ore concentration and sorption extraction of metals from technogenic raw material

Cited by 8 publications

References 7 publications

Three-year performance of in-situ solidified/stabilised soil using novel MgO-bearing binders

Three-year performance of in-situ solidified/stabilised soil using novel MgO-bearing binders

Justification and development of innovative technologies for integrated processing of complex ore and mine waste

Choice of Efficient Technology for Aged Enrichment Tailings Processing

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