Russian Journal of Applied Chemistry, 2010, Vol. 83, No. 4, pp. 602−606.
Pleiades Publishing, Ltd., 2010.
Original Russian Text
D.V. Makarov, D.P. Nesterov, Yu.P. Men’shikov, I.V. Zorenko, A.A.Nesterova, 2010, published in Zhurnal Prikladnoi Khimii, 2010,
Vol. 83, No. 4, pp. 550−554.
INORGANIC SYNTHESIS AND INDUSTRIAL
Interaction of Thermally Activated Tails from the Enrichment
of Copper-Nickel Ores with Sulfate Solutions Containing Nickel(II),
Copper(II), and Iron(II) Ions
D. V. Makarov, D. P. Nesterov, Yu. P. Men’shikov,
I. V. Zorenko, and A. A. Nesterova
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Resources, Kola Scientiﬁ c Center,
Russian Academy of Sciences, Apatity, Murmansk oblast, Russia
Institute, Kola Scientiﬁ c Center, Russian Academy of Sciences, Apatity, Murmansk oblast, Russia
Received May 7, 2009
Abstract—The effect of iron(II) ions on the efﬁ ciency of the geochemical barrier was studied.
The term “geochemical barriers” was formulated by
Perel’man . The main characteristic of the barriers is
sharp change in conditions of migration and concentra-
tion of elements. The geochemical barriers are zones of
formation of ore bodies of a majority of deposits. The
geochemical barrier concept is a methodological basis for
studying the geochemical anomalies and, consequently,
is important for the development of geochemical search
methods. Studying the barriers is also urgent for the
development of environmental protection methods, in
underground leaching of ores, in construction engineering
for soil strengthening, and for the solution of other practi-
cal problems. The above technologies allow use of the
available natural geochemical barriers and anthropogenic
barriers. As materials for preparing barriers may serve
both natural substances (soils, rocks, and peat) and anthro-
pogenic wastes (pyrite ash and soda production wastes) .
It has been shown previously that thermally acti-
vated tails from the enrichment of copper-nickel ores
are a promising material for preparing anthropogenic
geochemical barriers suitable for precipitating nickel and
copper in physicochemical geotechnologies .
We used in the experiments tails from the enrich-
ment of current production of copper-nickel ores from
the Pechenga ore ﬁ eld. The chemical composition of the
ores is given below:
Fe Ni Cu S
Average content, % 37.398 28.299 3.735 2.705 0.945 13.282 0.171 0.066 0.707
The tails contain various kinds of serpentines,
], М is Mg, Fe, etc., to the extent of 60%.
As known, on heating of serpentines there is a certain
temperature interval (600–800°С), in which the structure
of the starting mineral is no longer retained owing to loss
of constitution water, whereas the new high-temperature
phases are not yet formed . The boundaries of the
temperature interval are determined by the constitution
of minerals and by the degree of ordering of their crystal
structure . The serpentine minerals thermally treated