Submit an Article
Become a reviewer
Ya. M. Shneerson
Ya. M. Shneerson
ZAO Mekhanobr Engineering
ZAO Mekhanobr Engineering
St. Petersburg
Russia

Articles

Metallurgy and concentration
  • Date submitted
    2018-01-06
  • Date accepted
    2018-02-26
  • Date published
    2018-06-25

Extraction of platinum metals during procssing of chromium ores from dunnite deposits

Article preview

Currently, the main raw materials sources of platinum group metals in Russia are complex sulfide copper-nickel ores of the Taimyr region and placer deposits. However, in view of the inevitable loss of platinum metals during the metallurgical processing of initial ores and the deterioration of the quality of ore raw materials, along with a decrease in the share of platinum mining from placers, there is a need to look for new non-traditional sources of platinum group metals. Dunnites of the Middle Urals are promising platinum-bearing raw materials. The use of the gravitational-magnetic processing of chromium ores of dunnite deposits makes it possible to identify a magnetic platinum-bearing concentrate with a high content of magnetite and platinum-iron alloys, they can be refined using chemical-metallurgical methods. This article presents the results of research of identifying peculiarities of technological behavior of chromium, iron and noble metals during mechanical processing of ledge chromium ore. The kinetic regularities of the sulfuric acid decomposition of magnetite are determined. Optimum technological parameters of sulfuric acid leaching of iron from magnetic products of chromium ore dressing are established. Based on the conducted studies, the PDF and PID for the complex processing of chromium ores of dunnite deposits is proposed, which ensures the production of a rich platinum-bearing concentrate and a high-quality chromite concentrate that meets the requirements of chemical production.

How to cite: Petrov G.V., Shneerson Y.M., Andreev Y.V. Extraction of platinum metals during procssing of chromium ores from dunnite deposits // Journal of Mining Institute. 2018. Vol. 231. p. 281. DOI: 10.25515/PMI.2018.3.281
Without section
  • Date submitted
    2004-12-24
  • Date accepted
    2005-01-07
  • Date published
    2005-07-01

Autoclave leaching of substandard ore sulfide concentrates of heavy non-ferrous metals

Article preview

Scientific bases of construction of automated control systems of technological processes are given. The necessity of considering mining and metallurgical processing and metallurgical processes at large enterprises as automated technological complexes is substantiated. The basis for the creation of automated process control systems is a system approach to the production process with the allocation and combination of regulation, control and information aspects within its framework.

How to cite: Shneerson Y.M., Kalashnikova M.I. Autoclave leaching of substandard ore sulfide concentrates of heavy non-ferrous metals // Journal of Mining Institute. 2005. Vol. 165. p. 218-220.