Advanced Techniques of Saponite Recovery from Diamond Processing Plant Water and Areas of Saponite Application

Chanturia, V. A.; Minenko, V. G.; Makarov, Dmitriy; Суворова, О. В.; Selivanova, Ekaterina A.

doi:10.3390/min8120549

Cited by 8 publications

(5 citation statements)

References 37 publications

(54 reference statements)

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“…Smectite behavior in kimberlites was the focus of work by Morkel et al (2006Morkel et al ( , 2007. The presence of saponite in kimberlite has mainly been highlighted in hydrometallurgy and water reclamation studies, where methods of cleaning saponitecontaining water from diamond processing plants were tested (O'Gorman and Kitchener, 1974;Chanturiya et al, 2018). Saponite was observed as the dominant mineral of the slime fraction (i.e., very fine residues) of the kimberlites at the Cullinan mine (previously named Premier Mine), South Africa, where methods of coagulation and flocculation were investigated to simplify water recovery and recycling (O'Gorman and Kitchener, 1974).…”

Section: Smectites As a New Resource For Mineral Carbonation In Kimbe...mentioning

confidence: 99%

“…Saponite was observed as the dominant mineral of the slime fraction (i.e., very fine residues) of the kimberlites at the Cullinan mine (previously named Premier Mine), South Africa, where methods of coagulation and flocculation were investigated to simplify water recovery and recycling (O'Gorman and Kitchener, 1974). Saponite was also described as the main mineral of the clay fraction of kimberlites from the Lomonosov deposit, Archangelsk province, Russia (Chanturiya et al, 2018), where electrochemical separation of saponite from process water and the potential of saponite to host heavy metals were discussed. Our work calls for a better petrographic and crystallographic description of the smectite fraction of kimberlites owing to its potential utility for mineral carbonation.…”

Section: Smectites As a New Resource For Mineral Carbonation In Kimbe...mentioning

confidence: 99%

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Cation Exchange in Smectites as a New Approach to Mineral Carbonation

et al. 2022

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Mineral carbonation of alkaline mine residues is a carbon dioxide removal (CDR) strategy that can be employed by the mining industry. Here, we describe the mineralogy and reactivity of processed kimberlites and kimberlite ore from Venetia (South Africa) and Gahcho Kué (Canada) diamond mines, which are smectite-rich (2.3–44.1 wt.%). Whereas, serpentines, olivines, hydrotalcites and brucite have been traditionally used for mineral carbonation, little is known about the reactivity of smectites to CO2. The smectite from both mines is distributed as a fine-matrix and is saponite, Mx/mm+Mg3(AlxSi4−x)O10(OH)2·nH2O, where the layer charge deficiency is balanced by labile, hydrated interlayer cations (Mm+). A positive correlation between cation exchange capacity and saponite content indicates that smectite is the most reactive phase within these ultramafic rocks and that it can be used as a source of labile Mg2+ and Ca2+ for carbonation reactions. Our work shows that smectites provide the fast reactivity of kimberlite to CO2 in the absence of the highly reactive mineral brucite [Mg(OH)2]. It opens up the possibility of using other, previously inaccessible rock types for mineral carbonation including tailings from smectite-rich sediment-hosted metal deposits and oil sands tailings. We present a decision tree for accelerated mineral carbonation at mines based on this revised understanding of mineralogical controls on carbonation potential.

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Section: Smectites As a New Resource For Mineral Carbonation In Kimbe...mentioning

confidence: 99%

Section: Smectites As a New Resource For Mineral Carbonation In Kimbe...mentioning

confidence: 99%

Cation Exchange in Smectites as a New Approach to Mineral Carbonation

et al. 2022

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“…In water ecosystems, saponite forms intermolecular associates with dissolved organics and then settles out, creating favorable conditions for the introduction of invasive species [10]. Studies show that saponite reutilization is not only a question of eco-risk abatement but also an economically reasonable decision as the mineral is a valuable secondary product with a wide range of applications, which include the chemical, food and consumer goods industries, agriculture, medicine and pharmacology, foundry practices, metallurgy, and construction [11].…”

Section: Mineral Processing Waste As a Promising Raw Materialsmentioning

confidence: 99%

Reutilization Prospects of Diamond Clay Tailings at the Lomonosov Mine, Northwestern Russia

Пашкевич

Alekseenko

2020

Minerals

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Approaches to reutilization of diamond clay tailings in northern environments are considered in the example of the Subarctic region of Russia. The monitoring studies are conducted at storage facilities of Severalmaz PJSC where ca. 14 million cubic meters of waste rock are produced annually after kimberlite mining and processing. The tailings of diamond ore dressing waste are situated in complex geological conditions of high-groundwater influx and harsh cold climate with low levels of solar radiation and the average annual temperature below freezing point. Furthermore, the adjoining protected forests with a significant diversity of biogeocenoses and salmon-spawning rivers are affected by the storage area. Reducing the impact of the tailings can be achieved through the reuse of the stored clay magnesia rocks obtained from saponite-containing suspension. The experiments reveal the most promising ways of their application as potential secondary mineral raw materials: cement clinker and ceramics manufacture, integration of alkaline clay into the reclamation of acidic peat bogs, and production of aqueous clay-based drilling fluid. Field and laboratory tests expose the advantages and prospects of each suggested treatment technique.

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“…ISSN 2218-9300 (Kumaresan 2019 andChanturiya 2018) based on saponite, including sorption materials, is an actual problem.…”

Section: Introductionmentioning

confidence: 99%

Mineral-Based Magnetic Nanocomposite Sorbents

Dontsova

Yanushevska

2020

WPT STN

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The article is devoted to the synthesis of mineral-based magnetic nanocomposite sorbents and the study of the influence of modification by magnetite and molybdenum disulfide on the structuralsorption and surface properties of native saponite clay. Modification of native saponite clay with nanoscale magnetite increases the specific surface area and changes pore's distribution of the original clay from monomodal to bimodal. Next modification of magnetic saponite by micro-sized and nano-sized molybdenum disulfide results in blocking of the secondary porous structure (bimodality disappears of magnetic saponite), but it is increasing the specific surface area. It was found that the sorption activity of modified and unmodified saponite in the region of low concentrations of cationic and anionic dyes (Methyl blue and Congo red) is almost the same. The study of Congo red dye adsorption from highly concentrated solutions showed significant differences in the sorption activities of modified and unmodified saponite samples: the largest sorption capacity characteristic of ternary composites (saponite modified by magnetite and by nanosized molybdenum disulfide). These ternary composites had in 62 times more activity than native saponite clay and 10 times more than magnetic saponite. It is established that all the samples are characterized by basic properties, but the sample of native saponite modified by magnetite and nanosized molybdenum disulfide has the largest number of active centers (both acidic and basic character). Thus, it is shown that the modification of the native saponite clay significantly affects not only the texture-sorption but also the surface properties of the native saponite clay.

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Advanced Techniques of Saponite Recovery from Diamond Processing Plant Water and Areas of Saponite Application

Cited by 8 publications

References 37 publications

Cation Exchange in Smectites as a New Approach to Mineral Carbonation

Cation Exchange in Smectites as a New Approach to Mineral Carbonation

Reutilization Prospects of Diamond Clay Tailings at the Lomonosov Mine, Northwestern Russia

Mineral-Based Magnetic Nanocomposite Sorbents

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