Express determination of the grain size of nickel-containing minerals in ore material

Ivannikov, Alexander; Chumakov, A. A.; Prischepov, Vladimir; Melekhina, K.

doi:10.1016/j.matpr.2020.10.141

Cited by 7 publications

(4 citation statements)

References 10 publications

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“…Compared to profile 6xxx-1(1.6Mg/Si), the average grain sizes of profiles 6xxx-2(1.33Mg/Si) and 6xxx-3(1.14Mg/Si) are higher by 143.5% and 44.8%, respectively. The aging process has no effect on the grain structure of the profile [29], from which it can be concluded that an increase in the total Mg + Si content increases the grain size.…”

Section: Metallographic Analysismentioning

confidence: 97%

Material Properties and Structure of Al-Mg-Si Alloy Thin-Walled Profiles with Different Alloy Compositions and Aging Processes

Guo,

Li,

Tan

2024

Applied Sciences

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Thin-walled Al-Mg-Si alloy profiles with different compositions and aging states were prepared using the heating and extrusion process. The properties and structure of the profiles were then investigated using a metallographic microscope, scanning electron microscope, projection electron microscope, and universal testing machine. The results show that the yield strength and tensile strength of the profile increases with the increase in total Mg + Si content, and ductility is reduced. If the total Mg + Si content is too high or too low, the crush performance of the material would decrease. Compared with the under-aged and near-peak-aged states, the three types of AI-Mg-Si alloy thin-walled profiles at the over-aged state have better effective energy absorption during crushing and higher bending angle; however, the tensile strength of the profile is optimal at the near-peak-aged state. The effects of alloy composition and aging process on material strength and crushing energy absorption are mainly attributed to the grain structure and differences in precipitation. For coarse grain structures, the grain boundary precipitate free zones are wider, which decreases the profile ductility. Simultaneously, an increase in primary strengthening phases in the grains would increase the profile strength.

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Section: Metallographic Analysismentioning

confidence: 97%

Material Properties and Structure of Al-Mg-Si Alloy Thin-Walled Profiles with Different Alloy Compositions and Aging Processes

Guo,

Li,

Tan

2024

Applied Sciences

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“…The production chain of ore beneficiation requires constant quality control [10] at all stages: ensuring the specified conditions of the supplied ore; the size of the mineral grains in the ore [11]; constant and required volume of supplied ore [12,13]. To improve the quality of beneficiation, pretreatment of the ore is recommended [14].…”

Section: Introductionmentioning

confidence: 99%

Study of the Effect of Copper (II), Zinc and Iron (II) Sulphates on the Froth Flotation of Sphalerite by Sulfhydryl Collectors

Kyaw

Nikolaev

Htet

et al. 2022

KEM

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The practice of benefication of copper-zinc ores has established that the production of high-quality zinc concentrates is impossible without the addition of sphalerite and pyrite modifiers to various flotation operations. This article present the result of study of the effect of copper (II), zinc and iron (II) sulfate on the froth flotation of sphalerite by sulfhdryl collectors. Typically, it is achieved through optimisation of flotation circuits, installation of modern equipment and changing the flotation reagents modes. Therefore, the floatability of sphalerite in an alkaline lime medium was studied with the addition of one of these metal sulphates to the mineral flotation operation. The effect of each of copper (II), zinc and iron (II) sulphates on the floatability of sphalerite was studied by flotation of the mineral and by potassium butyl xanthate and sodium dibutyl dithiophosphate at pH = 8, 10 and 12.

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“…For the uninterrupted functioning of the entire production cycle, a clear, automated quality control of the incoming minerals [6], power quality control [7] and the distribution of energy flows are required.…”

Section: Introduction Automation Of Technological Processes At a Thermal Power Plantmentioning

confidence: 99%

Selection of a Multi-Functional Controller for the Software and Hardware Complex of an Automated Control System for a Thermal Power Plant

2021

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The article describes the main tasks that need to be solved when automating technological processes at TPS. Technological processes at TPS take place in difficult conditions, which complicates the management tasks. When creating an automated control system, modern software and technical complexes are used, which are developed by domestic manufacturers. The software and hardware complex allows you to solve all the problems of monitoring and controlling technological processes in all operating modes of power equipment. They can be used for both newly constructed and reconstructed energy facilities. The basis of the Software and hardware complex is programmable logic controllers that support medium and distributed automation. The article discusses some Russian-made controllers. Since 2019, the automated control system of the boiler-economizer is being designed by NVT-Systems at the Dzerzhinsk TPS. The implemented Software and hardware complex needs to be integrated into the existing automation structure, in addition, simplicity, reliability and redundancy are required. For these reasons, the REGUL500 controller was selected. The controller is characterized by very high performance, reliability, and the ability to work in distributed systems in real time. In addition, the advantages of the REGUL500 controllers are: high accuracy of the measuring channels; the possibility of hot-swapping modules of all types; resistance to external influences. The REGUL controller has a set of various Russian certificates of conformity.

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Express determination of the grain size of nickel-containing minerals in ore material

Cited by 7 publications

References 10 publications

Material Properties and Structure of Al-Mg-Si Alloy Thin-Walled Profiles with Different Alloy Compositions and Aging Processes

Material Properties and Structure of Al-Mg-Si Alloy Thin-Walled Profiles with Different Alloy Compositions and Aging Processes

Study of the Effect of Copper (II), Zinc and Iron (II) Sulphates on the Froth Flotation of Sphalerite by Sulfhydryl Collectors

Selection of a Multi-Functional Controller for the Software and Hardware Complex of an Automated Control System for a Thermal Power Plant

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