Processing of aged dumped tailings of apatite-nepheline ores flotation

Sizyakov, V. M.; Brichkin, V. N.; Sizyakova, E. V.; Nazarov, Yu. P.

doi:10.17580/or.2016.02.06

Cited by 5 publications

(3 citation statements)

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“…With the global demand for apatite, which is a non-renewable mineral resource, phosphate ores are being depleted and their composition is changing. In addition, an increase in the alkalinity of recycled water causes a change in the composition of sorption mixtures used as reagents in the floatation enrichment method. − …”

Section: Introductionmentioning

confidence: 99%

Interaction Features of Sodium Oleate and Oxyethylated Phosphoric Acid Esters with the Apatite Surface

et al. 2022

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Apatite ores are the most important phosphate materials used for the agricultural and livestock chemical production. With the global demand for phosphorous compounds, apatite and other phosphorus-bearing ores are being depleted. The main method of apatite ore enrichment at the moment is the flotation process, the efficiency of which depends on complex heterogeneous processes occurring at the boundary of three phases (“liquid–gas”, “solid–liquid”, and “solid–gas”). Significant influence on the process have the flotation modes and composition of the reagent mixture, which provide a synergistic effect. The purpose of this work was to investigate the reasons for the synergism of surfactants used in apatite ore flotation with fatty acid-based collectors. The object of the study is a monomineral fraction of apatite, separated from the apatite-nepheline ore of Khibiny deposits. In the course of the work, it was found that the mixture of sodium oleate and phospholane PE65 has a synergistic effect on the mineral surface of apatite during foam flotation. The ratio of reagents was determined at which the maximum synergistic effect was observed.

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Section: Introductionmentioning

confidence: 99%

Interaction Features of Sodium Oleate and Oxyethylated Phosphoric Acid Esters with the Apatite Surface

et al. 2022

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“…During open pit mining or when mining ore with a low content of valuable constituents, large volumes of waste rock are formed, which are placed in surface storage in the mining area. Moreover, they contain a large amount of associated components [1,2], which pose a threat in the process of long-term oxidation and weathering. It creates environmental issues in terms of land degradation, air and water pollution, etc.…”

Section: Introductionmentioning

confidence: 99%

Backfill of a Mined-Out Gold Ore Deposit with the Cemented Rubber-Cord and Waste Rock Paste: Environmental Changes in Aqueous Media

Danilov¹,

Matveeva²,

Korelskiy³

et al. 2021

J. Ecol. Eng.

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Assessment of the dynamics of changes in the physical and chemical properties and morphological composition of the filling mixture as well as the identification of the elements capable of migrating into the environment is an important part of assessing the environmental efficiency of such an environmental measure during the filling of mined-out space of an ore deposit. During scientific research, the environmental safety mined-out space filling technology at the gold ore deposit by the mixture of rock waste, cement and crushed car tires was investigated. The authors carried out a set of laboratory studies and created a physical model of groundwater infiltration. Under laboratory conditions, this model allowed the experiment to evaluate the migration of elements and substances from the filling mixture into the environment to assess the risks of secondary pollution. The potential hazard of element migration from the backfill mixture into the environment was determined as a result of testing the backfill mixture on a bench with washing using the model solution that emits drainage water. During research, it was revealed that under the conditions of an ore deposit, the filling mixture components transformation would not lead to hazardous hydrochemical and hydrogeochemical areas or pollution stream formation.

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“…При тонком измельчении часто происходит механическая активация вещества, после которой его физические свойства претерпевают значительные изменения. В ряде случаев это может быть использовано не только для учета артефактов измельчения, но и для разработки новых методов доизвлечения металлов [1,8,11,13,14,17,26,28].…”

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Transformation of grains of technological raw materials in the process of obtaining fine powders

Gembitskaya

Gvozdetskaya

2021

PMI

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Crushing and grinding of materials are the most common processes of sample preparation for subsequent analysis and industrial application. Recently, grinding has become one of the most popular methods for producing nano-sized powders. This study investigates certain features of grain transformation in the process of grinding ores with finely dispersed valuable components in order to liberate them, as well as specifics of grinding metallurgical raw materials, metals and their mixtures for using them as initial components in metallurgical and other technological processes. We identified and examined structural and morphological changes of various powders after ultrafine grinding using the methods of scanning electron microscopy and X-ray microanalysis. It was proved that in order to take into account sample preparation artifacts during analytic studies of solid samples and development of technological processes, fine grinding of heterogeneous materials, especially if they contain metals, requires monitoring of the ground product by methods of scanning electron microscopy and X-ray microanalysis.

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Processing of aged dumped tailings of apatite-nepheline ores flotation

Cited by 5 publications

References 0 publications

Interaction Features of Sodium Oleate and Oxyethylated Phosphoric Acid Esters with the Apatite Surface

Interaction Features of Sodium Oleate and Oxyethylated Phosphoric Acid Esters with the Apatite Surface

Backfill of a Mined-Out Gold Ore Deposit with the Cemented Rubber-Cord and Waste Rock Paste: Environmental Changes in Aqueous Media

Transformation of grains of technological raw materials in the process of obtaining fine powders

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