The study of the main soil types and their composition in the Tarnier deposit

E3S Web of Conferences ◽

10.1051/e3sconf/202017704006 ◽

2020 ◽

Vol 177 ◽

pp. 04006

Author(s):

Larisa Parfenova ◽

Olga Ekimova

Keyword(s):

Soil Types ◽

Copper Pyrite ◽

Pyrite Ores

In this paper, soil types found on the territory of the Tarnier deposit of copper pyrite ores are considered. The contents of rock-forming components in the main soil types are determined. The analysis of excesses of permissible concentrations in soils was performed.

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The Chemical Technology for Producing Precious Metals from Enrichment Rejects of Copper-Pyrite Ores

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.316.625 ◽

2021 ◽

Vol 316 ◽

pp. 625-630

Author(s):

Nadezhda L. Medyanik ◽

Anton P. Ponomarev ◽

Olga V. Yershova

Keyword(s):

Economic Effect ◽

Precious Metals ◽

Payback Period ◽

Chemical Technology ◽

Chemical Extraction ◽

Two Stage ◽

Flotation Tailings ◽

Metallurgical Combine ◽

Copper Pyrite ◽

Pyrite Ores

The chemical technology for recovery precious metals Au and Ag from mature flotation tailings of copper-pyrite ores by two-stage sintering with chlorine-ammonium reagents and leaching of bakes with water is developed. The chemical extraction of gold and silver is carried out, using NH4Cl and NH4NO3 reagents in the ratios of 1:1 at a temperature of 250 °C, and 2:1 at 200 °C. In accordance with the obtained results, a chemical technology of enrichment rejects of copper-pyrite ores processing and a scheme of primary apparatus chain for implementing this technology are proposed. The economic effect of the technology realization is calculated. This effect is 96.3 million rubles with a payback period of 8 years when processing enrichment rejects of copper-pyrite ores in amount of 109.5 thousand tons per year under the conditions of JSC “Uchaly Mining and Metallurgical Combine”.

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STALE TAILINGS OF COPPER-CRUSTED ORES FLOTATION WITH THE POSSIBILITY OF GOLD AND SILVER SELECTIVE EXTRACTION: RESOURCE POTENTIAL ANALYSIS

Transbaikal State University Journal ◽

10.21209/2227-9245-2021-27-6-31-39 ◽

2021 ◽

Vol 27 (6) ◽

pp. 31-39

Author(s):

N. Medyanik ◽

◽

E. Leontieva ◽

O. Mishurina ◽

E. Mullina ◽

...

Keyword(s):

Elemental Composition ◽

Phase Analysis ◽

Mineral Composition ◽

Selective Extraction ◽

Material Composition ◽

Raw Material ◽

Resource Potential ◽

Flotation Tailings ◽

Copper Pyrite ◽

Pyrite Ores

The article analyzes the possibility and efficiency of processing stale tailings of flotation plants of the copper pyrite complex. The resource potential, material composition and technological capabilities of processing a number of technogenic objects are considered. The interrelation and influence of mineralogical and technological factors on the choice of tailings processing technology are analyzed. The results of chemical, mineral and phase analysis of stale flotation tailings of the studied pyrite ores are presented. According to the complex studies’ results, it is established that the stale flotation tailings of copper pyrite ores belong to a refractory type of geo-resources due to the high content of pyrite and low, at the level of ppm, gold and silver content, which are present mainly in the “resistant” minerals - chalcogenides, sulphides, their intergrowths. The article presents a factor analysis and conditions for the elemental composition of tailings formation: mineralogical, technological and environmental. The territorial accessibility and technological capability of the investigated technogenic formations are analyzed. In the course of experimental studies, the elemental composition of stale tailings has been revealed - the main components of which are: iron, sulfur, silicon and aluminum. According to the results of X-ray phase analysis, it has been found that the main ore mineral of the tailings is pyrite. At the same time, it is noted that the main share of gold in the stale flotation tailings is presented in the form of sulphides in the form of finely dispersed and isomorphic inclusions. The heterogeneous morphometric and mineral composition of sulphide aggregates, their difficult opening and high dispersion characterize stale tailings as a raw material that is difficult to float. The revealed features of the material composition of stale tails indicate the impossibility of extracting valuable components (gold and silver) from this resource using existing traditional technologies. It has been proved that it is possible to effectively extract precious metals from this category of raw materials only after their deep opening by chemical processing. The relevance of the research lies in the need to process gold-containing man-made waste in order to significantly expand the raw material base of mining enterprises, as well as to improve the ecological situation of the city-forming mining enterprises of the South Urals. The aim of the research is to study the material composition of stale tailings and develop a technology for selective extraction of gold and silver. The object of research is the stale flotation tailings of copper-pyrite enterprises of the Southern Urals. The subject is the mineral composition, the content of useful components of lying tailings and the technology of gold and silver selective extraction from them. Material and research methods. During the experiments, a set of physicochemical and chemical methods of analysis has been used: thermodynamic analysis, synchronous thermal analysis using a combined thermal analyzer of the Netzsch STA 449 F3 Jupiter brand, UV spectroscopy with an automated data processing system), qualitative chemical and assay analyzes

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Small mammals of background areas in the vicinity of the Karabash copper smelter (Southern Urals, Russia)

Biodiversity Data Journal ◽

10.3897/bdj.10.e76215 ◽

2022 ◽

Vol 10 ◽

Author(s):

Svetlana Mukhacheva ◽

Yulia Davydova ◽

Artëm Sozontov

Keyword(s):

Small Mammals ◽

Southern Urals ◽

Copper Smelter ◽

Household Waste ◽

Mammal Species ◽

New Information ◽

Development Data ◽

Copper Pyrite ◽

Pyrite Ores ◽

Occurrence Records

The dataset contains records of small mammals (Eulipotyphla and Rodentia) collected in the background (unpolluted) areas in the vicinity of Karabash copper smelter (Southern Urals, Russia) and the territory of the Sultanovskoye deposit of copper-pyrite ores before the start of its development. Data were collected during the snowless periods in 2007 (18 sampling plots), 2008–2010 (13 plots annually), 2011 (30 plots) and 2012–2014 (19 plots annually). The capture of animals was carried out in different types of forests (pine, birch, mixed and floodplain), sparse birch stands, reed swamps, marshy and dry meadows, border areas, a household waste dump, areas of ruderal vegetation and a temporary camp. Our study of small mammals was conducted using trap lines (snap and live traps). During the study period, 709 specimens of small mammals were caught, which belonged to five species of shrews and 13 species of rodents. The dataset may be highly useful for studying regional fauna and the distribution of species in different habitats and could also be used as reference values for environmental monitoring and conservation activities. Our dataset contains new information on occurrences of small mammals. It includes the peculiarities of their habitat distribution in the background areas in the vicinity of the large copper smelter and the deposit of copper-pyrite ores before the start of its development (Chelyabinsk Oblast, Russia). All occurrence records of 18 mammal species with georeferencing have been published in GBIF.

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Distribution of Gold and Associated Ore-Bearing Elements in Gold-Copper-Pyrite Ores of the Kyzylbulag Deposit (Lesser Caucasus, Azerbaijan)

UNIVERSITY NEWS. NORTH-CAUCASIAN REGION. NATURAL SCIENCES SERIES ◽

10.18522/1026-2237-2020-3-51-59 ◽

2020 ◽

pp. 51-59

Author(s):

M.I. Mansurov ◽

B.H. Galandarov ◽

U.I. Karimli ◽

A.I. Huseynov

Keyword(s):

Cluster Analysis ◽

Elemental Composition ◽

Native Gold ◽

Ore Body ◽

Hydrothermal Stage ◽

Copper Pyrite ◽

Lesser Caucasus ◽

Pyrite Ores ◽

Host Rocks ◽

Ore Deposition

The article presents the results of studies of the distribution of gold and associated ore elements in gold-copper pyrite ores of the Kyzylbulag deposit. It was established that the elemental composition of ores and host rocks of the deposit includes Cu, Pb, Au, Ag, Ni, As, Sb, Bi, and Mo, of which Au, Cu, Ag, and Zn are the more stable. The behavior of elements was also studied for the entire ore body, as a result of which they are divided by cluster analysis at R (5 %) - 0.1 into two groups: 1) Au, Cu and Ag; 2) Pb and Zn. The closest relationship in the first group was found between Au and Cu, Au and Ag, Ag and Cu; and in the second, between Pb and Zn. Acquired results confirm that gold and the copper are the major components of ore in the field expressed generally in the mineral paragenesis of chalcopyrite - native gold shown in the independent hydrothermal stage of ore deposition.

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GRINDING OF INDUSTRIAL PRODUCTS ENRICHENT OF COPPER-PYRITE ORES

Sustainable Development of Mountain Territories ◽

10.21177/1998-4502-2018-10-2-215-220 ◽

2018 ◽

Vol 10 (2) ◽

pp. 215-220

Author(s):

Yury KLYKOV ◽

◽

Stanislav SOSHKIN ◽

Badrudin GASANOV ◽

◽

...

Keyword(s):

Industrial Products ◽

Copper Pyrite ◽

Pyrite Ores

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Abrasive wear of polymer/steel gear drives

Progress in Agricultural Engineering Sciences ◽

10.1556/progress.4.2008.1 ◽

2008 ◽

Vol 4 (1) ◽

pp. 1-26

Author(s):

Gábor Kalácska

Keyword(s):

Wear Resistance ◽

Abrasive Wear ◽

Material Selection ◽

Solid Particles ◽

Soil Types ◽

General View ◽

Modern Engineering ◽

Clean Environment ◽

Engineering Polymers ◽

Plastic Gears

Research was performed on the friction, wear and efficiency of plastic gears made of modern engineering polymers and their composites both in a clean environment (adhesive sliding surfaces) and in an environment contaminated with solid particles and dust (abrasive), with no lubrication at all. The purpose is to give a general view about the results of abrasive wear tests including seven soil types as abrasive media. At the first stage of the research silicious sand was applied between the meshing gears and the wear of plastic and steel gears was evaluated and analyzed from the point of different material properties (elongation at break, hardness, yield stress, modulus of elasticity) and its combinations. The different correlations between the experienced wear and material features are also introduced. At the second stage of the project the abrasive sand was replaced with different physical soil types. The abrasive wear of gears is plotted in the function of soil types. The results highlight on the considerable role of physical soil types on abrasive wear resistance and the conclusions contain the detailed wear resistance. The results offer a new tribology database for the operation and maintenance of agricultural machines with the opportunity of a better material selection according to the dominant soil type. This can finally result longer lifetime and higher reliability of wearing plastic/steel parts.

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Effects of heavy metals on soil invertase enzyme activity in different soil types

Land Contamination & Reclamation ◽

10.2462/09670513.941 ◽

2010 ◽

Vol 18 (2) ◽

pp. 175-180

Author(s):

Rajesh K. Verma ◽

Dharam Veer Yadav ◽

Chandra Pal Singh ◽

Archna Suman ◽

Asha Gaur

Keyword(s):

Heavy Metals ◽

Enzyme Activity ◽

Soil Types

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Status of Food Security in Banten Province, Indonesia

10.31227/osf.io/fcvpm ◽

2019 ◽

Author(s):

Weksi Budiaji

Keyword(s):

Population Dynamics ◽

Food Security ◽

Arable Land ◽

Secondary Data ◽

Disaster Risk ◽

Soil Types ◽

Indicator Variables ◽

Cereal Production ◽

The Status ◽

Vast Area

This paper discusses the status of food security in Banten Province, Indonesia based on regional and city characteristics. Secondary data is used and is analyzed descriptively covering population dynamics, the population living in poverty, cereal production, disaster risk and soil types. Tangerang Region is found to have the largest population with the greatest number of people living in poverty among the regions and cities in Banten Province. Cereal production is dominated by the regions rather than the cities due to their vast area. Regarding arable land, flooding is the most threatening disaster in the major rice producing areas. In order to identify the distributions of regions and cities regarding food security, three indicator variables of food security dimensions are plotted, namely, cereal normative consumption, proportion of the population living in poverty, and proportion of malnourished babies. The three regions of Pandeglang Region, Lebak Region and Serang Region are grouped together in a less secure group.

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