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PRODUCTION

Successfully passed laboratory tests based on SE «Artemgeology» and SE «Yuzhgeology». On clay extracted now developed technical specifications (TU U 14.2-34063990-001:2008) with amendments. These technical specifications are registered in the State Enterprise «Donetsk Regional Centre for Standardization, Metrology and Certification» 18.01.2008 (amendments №1 dated 05.06.2009; №2 dated 22.07.2009; №3 dated 28.08.2012; №4 dated 01.07.2015; №5 dated 17.11.2015, №6 dated 13.10.2016).

Control samples are taken at all stages: exploration, production, storage and shipment of product.

Eight grades of refractory clay are extracted. Each of them is unique and has their own application in various industrial branches.

Indicator Norm for types of Clays
Fireclay High-melting clay
Р-О Р-1 Р-2 РB-2 Р-3 РБ-3 РН-4 РН-5
The proportion calcined substance, %
- aluminum oxide (Al2O3), not less then 26-30 24-26 22-24 22-24 20-22 20-22 18-20 15-18
- iron oxide (Fe2O3), not more then 1,1 1,1 1,1 1,3 1,0 1,3 1,0 1,0
- titanium oxide (ТіО2), not more then 1,6 Not regulated
Weight at loss at calcinations (WLC), %, not more then 12,0 Not regulated
Fire resistance, оС, not less then 1610 Not regulated
Sieve residue, mesh № 0063, not more than 2,5 6 8 8 8 8 10 15