Increasing the recovery ratio of iron ores in the course of preparation and processing

Кусков, В. Б.; Lvov, V. V.; Yushina, T. I.

doi:10.17580/cisisr.2021.01.01

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…The hydrocracking process feedstocks will be straight-run gas oils, vacuum gas oils, catalytic gas oils, coking gas oils, visbreaking gas oil and deasphaltisate. Since refineries have primary and secondary refining processes, the products obtained will depend on the feedstock loaded [41][42][43][44][45][46][47][48][49].…”

Section: Economic Evaluation Of the Strategy Nomentioning

confidence: 99%

Evaluating the Downstream Development Strategy of Oil Companies: The Case of Rosneft

et al. 2022

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The relevance of this study is due to the low rate of development of the downstream sectors of Russian oil companies. Against a background of the sale of significant volumes of oil and gas raw materials, Russia lags behind world leaders in the production and consumption of petrochemical and chemical products, with their share in the gross domestic product of the country being only 1.1%. Connected to this is the issue of substantiating strategies of development for the downstream sectors of Russian oil companies, which requires detailed research. In this light, it is necessary to take into account current trends in the worldwide demand on petroleum products and also the opportunities and competitive advantages of Russian oil and gas companies in the creation and development of refineries with a consideration of modern technological, environmental, social and market criteria. The paper tests hypotheses about modernisation as a process of increasing efficiency in the development of the industry as a whole. The results of the study show that the planned pace of development in the industry by means of modernisation proves to be insufficient and requires additional investments in innovative development and new construction. The value of the research lies in the modelling of modernisation strategy options by the example of a large oil company, the estimation of results by the criteria of world average indices of technological efficiency of production and the analysis of these results by state indicators of branch development. The theoretical significance of the research lies in the possibility of using this research approach as an analogue.

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Section: Economic Evaluation Of the Strategy Nomentioning

confidence: 99%

Evaluating the Downstream Development Strategy of Oil Companies: The Case of Rosneft

et al. 2022

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“…The methods of physical simulation on the base of comminution, classification, separation using laboratorial equipment are also known [2,3]. Smaller influence of random errors, possibility of varying the factors in more wide range, in comparison with industrial tests, are considered as their advantages [4].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the possibility of obtaining concentrate production targets based on a mathematical model of an ferrum ore processing site

Osipova¹

2023

cisisr

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This paper presents the methodological foundations for the compilation of a mathematical model of the circuits of the apparatus at the concentrating plant. With its help, it is possible to investigate the change in qualitative and quantitative indicators depending on the loading of the mill at the initial stage of grinding and the properties of the ore. The well-known approaches to the creation of enrichment site models based on the use of regression analysis, multilayer artificial and deep neural networks are considered. The works on the study of enrichment schemes using laboratory equipment are also presented, their disadvantages are shown. Lebedinsky mining and concentrating plant with its enrichment site No. 1 (one half-section) was selected as the object of modeling. An automatic control system (ACS) for loading a wet self-grinding mill (MWS) is considered, which includes a proportional integral (PI) regulator for the flow of ore fed from the conveyor. Mathematical models of aggregates of the enrichment site and their parameters for three grades of ores are presented. In the Matlab envferrumment, a study was conducted on its computer model, which consisted in sequentially changing the power assignment of the MWS to the PI controller, which corresponded to a load of 35 % to 50 %. An array of steady-state values of transients of the main indicators of the work of the enrichment site was obtained, on the basis of which static characteristics were constructed reflecting the relationship between filling, capacity and productivity for the initial ore, the finished class, between filling and the total ferrum content in the concentrate, energy intensity. Comparative results are given on the indicators obtained using the model of the enrichment site for various grades of ores while maintaining a constant loading of the MWS mill and choosing its optimal filling. It was shown that maximal productivity is achieved in the second case, for the initial ore (the finished class): the energy intensity is minimal, and the total ferrum content in the concentrate is within the permissible values.

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“…A promising way to modernize ferruginous quartzite processing schemes is to improve ore preparation technology [25,26]. The standard design solution is to take the non-magnetic fraction out for additional enrichment and additional grinding of the magnetic fraction.…”

Section: Introductionmentioning

confidence: 99%

Mineralogical and technological features and patterns of selective disintegration of ferruginous quartzites of the Mikhailovskoye deposit

Aleksandrova

Chanturiya²,

Kuznetsov

2022

PMI

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The growing demand for ferrous metallurgy products necessitates the introduction of technologies that increase the efficiency of the processing of iron-bearing raw materials. A promising trend in this area is the implementation of solutions based on the possibility of selective disintegration of ores. The purpose of this work was to establish the laws of selective disintegration of ferruginous quartzites based on the results of the study of mineralogical and technological properties of raw materials. We present data on the study of mineralogical and technological features of ferruginous quartzites of the Mikhailovskoye deposit. The data were obtained using X-ray fluorescence analysis and automated mineralogical analysis. Based on studies of the nature of dissemination and the size of grains of rock-forming and ore minerals, the tasks of ore preparation are formulated. The parameters for the iron and silicon oxide distribution by grain-size classes in the grinding products were established during the study. Based on empirical dependences, the grain size of grinding was predicted, at which the most effective release of intergrowths of ore minerals and their minimum transition to the size class of –44 µm should be achieved.

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Increasing the recovery ratio of iron ores in the course of preparation and processing

Cited by 5 publications

References 9 publications

Evaluating the Downstream Development Strategy of Oil Companies: The Case of Rosneft

Evaluating the Downstream Development Strategy of Oil Companies: The Case of Rosneft

Investigation of the possibility of obtaining concentrate production targets based on a mathematical model of an ferrum ore processing site

Mineralogical and technological features and patterns of selective disintegration of ferruginous quartzites of the Mikhailovskoye deposit

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