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.
Control samples are taken at all stages: exploration, production, storage and shipment of product.
Nine 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 | РB-1 | Р-2 | РB-2 | Р-3 | РB-3 | РН-4 | РН-5 | |
| The proportion calcined substance, % | |||||||||
| - aluminum oxide (Al2O3), not less then | 26-30 | 24-26 | 24-26 | 22-24 | 22-24 | 20-22 | 20-22 | 18-20 | 15-18 |
| - iron oxide (Fe2O3), not more then | 1,1 | 1,1 | 2,0 | 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 | 8 | 10 | 15 |