INNOVATIVE TECHNOLOGY DEVELOPMENTS
AIMED AT STRUCTURAL-CHEMICAL MODIFICATION
OF LINING MATERIALS BASED ON NONFERROUS METALURGY WASTE
AND PHOSPHATE BINDERS
I. Yu. Roshchupkina,
E. S. Abdrakhimova,
A. K. Kairakbaev,
V. Z. Abdrakhimov,
and A. V. Kolpakov
Translated from Novye Ogneupory, No. 7, pp. 52 – 56, July 2015.
Original article submitted December 17, 2014.
The effect of Samara Metallurgical Plant waste on physicomechanical properties and structure formation of
heat-resistant composite based on phosphate binders is studied. Developments are analyzed and results are
given for studying creation of new cement-free heat-resistant composites for lining heating units. Slurry waste
is distinguished from very fine powder materials of natural and technogenic origin by nanosize that is within
the limits of 50 to 100 nm, and depends on formation conditions.
Keywords: heat-resistant composite, high-alumina waste, alkali pickling waste, phosphate binders, alumo-
calcium slurry, carbonate slurry, alkali aggregates, lining.
In 1992 in Rio-de-Janeiro a concept of steady develop-
ment of civilisation which was adopted 178 countries of the
world. This concept appeals for a requirement of maximum
use of industrial waste and creation of low-waste technology.
Deterioration of the ecological situation of metallurgy is not
unfounded and is connected with contamination of the atmo
sphere, but it is not overstated. In sulfur oxide discharges the
world contribution of metallurgy is 15% (more than half of
this by nonferrous metallurgy), and apart from chemistry,
power generation is in the lead (70%).
The unlimited possibilities of greater overall use of waste
is shown by the branch producing building materials is ex
plained by the large scale of the building complex, its mate
rial consumption, and range of objects. The majority of pro
duction waste in composition and properties is similar to nat
ural raw material, used for producing building materials .
A large part of production waste may be used as a main raw
material or adjustment components in manufacturing materi-
als for general building and special purposes.
As research has shown, the greatest endurance of re-
fractories manufactured from heat-resistant concretes may be
achieved due to use of chemical binders in mixes. In addi
tion, chemical binders make it possible to use up to 80% of
production waste in composites. The chemical binders used
in heat-resistant concretes are water glass, lump silicate
(transparent glassy alloy of silicates, i.e., water glass semi
finished product), and phosphoric binders.
In our work [1 – 5] principles are given for preparing un
fired refractory composites with increased service life as lin
ing material. As applied to heat-resistant concrete, classified
as an unfired multicomponent composite, use of these princi
ples opens up extensive possibilities for creating new lining
materials with prescribed properties. Recently there has been
greater use of phosphate binders based on phosphoric acid,
predominantly orthophosphoric (H
). They are prepared
on mixing metal oxide powders with orthophosphoric acid:
aluminum, chromium, titanium, copper, magnesium, and
iron. It has been established that the main factor governing
the possibility of using oxides and hydroxides for producing
phosphate binders is the thermal effect of the polyvalent
Refractories and Industrial Ceramics Vol. 56, No. 4, November, 2015
1083-4877/15/05604-0398 © 2015 Springer Science+Business Media New York
FGBOU VPO S. P. Korolev Samara, State Aerospace University,
Kazakh-Russian International University, Aktobe, Kazakhstan.
FGBOU VPO Samara State Economic University, Samara, Rus