UDC 627.678.5
Usenko Yu. (1), associate professor, с.t.s.
Tarasov V. (2), associate professor, с.t.s.
Kuris Yu. (3), chief scientist, d.t.s.
Kutuzova I. (2), senior teacher

RESEARCH OF POSSIBILITY OF THE USE OF SLUDGES OF HARDWARE
PRODUCTION FOR MAKING OF BUILDING GYPSUM

(1) National metallurgical academy of Ukraine, Dnieper
(2) Zaporozhe state engineering academy
(3) Institute of technical thermal physics NASU, Кiev

The possibility of utilization wastes of sludge’s of etching separations of hardware
production is studied. The results of tests of the worked out technology of building gypsum
making are stated. Realization of the offered technology allows not only to prevent
contamination of environment by above mentioned wastes but also get an economy from
their utilization

Keywords: hardware production, etching sludge’s, treatment, building gypsum, its
descriptions

RESEARCH OF POSSIBILITY OF THE USE OF SLUDGES OF HARDWARE
PRODUCTION FOR MAKING OF BUILDING GYPSUM