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Article
Development of Waelz-Oxide Hydrometallurgical Processing Technology with Preparation of Carbonized Lead Cake
Comprehensive processing of ore and technogenic raw material containing zinc and lead requires improvement of lead-containing product quality provided by zinc industry enterprises for lead extraction by a pyro...
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Article
Thermodynamic Analysis of Zinc Ferrite Decomposition in Electric Arc Furnace Dust by Lime
Scientific basis of pyrometallurgical processing technology of dusts of electric steelmaking containing zinc ferrites was investigated. The thermodynamic analysis of the decomposition of zinc ferrite with lime...
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Article
Development of Charge Pelletizing Technology Based on Electric Arc Furnace Dust for Pyrometallurgical Processing in Rotary Kilns
New technology is developed for Waelz treatment of electric arc furnace dust with the addition of calcium oxide to a charge. In this case, lead and halides are transferred into distillates. Calcium ferrite and...
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Article
Investigation into the kinetic regularities of impurity transfer during the sulfuric acid leaching of the zinc-containing intermediate product of two-stage Waelz process of zinc cakes: Part I. leaching kinetics of individual model oxides
Kinetic regularities of impurity transfer into the solution when leaching the calcined Waelz oxide of zinc production are determined by leaching the individual iron, copper, and lead oxides. The escape of impu...
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Article
Investigation into the kinetic regularities of impurity transfer during the sulfuric acid leaching of the zinc-containing middlings of two-stage Waelz process of zinc cakes: Part II. regularities of sulfuric acid leaching the industrial samples of calcined Waelz oxide of zinc production
Kinetic regularities of leaching the actual industrial sample of calcined Waelz oxide of zinc production are determined. The basic reaction mechanism is established. The dissolution of solid-phase particles ca...
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Article
Investigations in the field of flotation with a steam-air mixture
The influence of the induction and relaxation time of the deformed adsorption layer of the bubble on the stability of the wetting film is investigated theoretically and experimentally. It is shown that, during...
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Article
New flotation technology of ores of the Urup deposit
To increase the technological characteristics of processing of the ores of the Urup deposit, the flow chart of stream flotation and a column flotation machine are applied to separate a rough concentrate in a s...
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Article
New technology of separation of the collective lead-zinc concentrate
Based on the laboratory studies of ore concentration and the statistical processing of the characteristics of operating a lead-zinc plant, it is established that obtaining a high-quality commercial lead concen...
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Article
Magnetic fluid separation of gold-containing products in the vibration field
New data on the process of the magnetic fluid (MF) separation, which is based on the ponderomotive effect of the magnetized separation medium—or ferromagnetic fluid (FMF) on the nonmagnetic bodies arranged in ...
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Article
Develo** the technology for the effective final concentration of gold-containing gravity concentrates
Jigging technology in a closed cycle is tested and optimized at one department of industrial gold mining for the final concentration of gravity concentrates with the use of PGShOK-50-2 sprinkling installation....
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Article
Surface forces in the processes of aggregation and flotation of particles
The temperature dependence of the volume of sediment formed on a porous partition under the kinetic destruction of the suspension is revealed. It is established that, if the temperature increases, the hydrophi...
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Article
Selecting the concentration technology of clinker using the Waelz process on zinc cakes
The object under investigation was stale clinker from zinc production at OAO Elektrotsink. Its main components are copper (0.67%), zinc (5.0%), lead (1.0%), iron (21.71%), and coke breeze (10% C). The chemical...
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Article
An investigation of the flotation mechanism in the aerosol column flotation machine
It is shown that the induction time decreases as the temperature decreases if there is air bubble adhesion to hydrophobic and hydrophilic particles; if there isn’t, the time decreases where hydrophobic particl...
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Article
Magnetic fluid: New technology
The solution of a problem concerning the synthesis of a magnetic fluid for use in magnetic-fluid separators during the finishing of rich gold-containing heavy concentrates is suggested as a result of obtaining...
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Article
Regularities of contact interactions between particles in a polydispersed mineral system
Using the model systems, it is experimentally found that in the polydispersed mineral system, small particles prevalently adhere to large particles. Experiments on flotation of the lead-zinc ore under the indu...
