China's Refractories

Fig. 1 Dolomite rock ? RHI Magnesita

Fig. 2 Schematic view of doloma with idiomorphic periclase (MgO, black) within a continuous matrix of CaO (lime, light grey) ? RHI Magnesita

Fig. 3 Phase diagram of MgO and CaO[9]

Fig. 4 Secondary stainless-steel production[1]Modified after ? RJ Choulet

Fig. 5 Effects of adding magnesia to doloma bricks— schematic view ? RHI Magnesita

Fig. 6 Slag penetration in doloma bricks ? RHI Magnesita

Fig. 7 Solubility of MgO and CaO in alumina slags[1]

Fig. 8 Coating formation of doloma bricks when exposed to slags ? RHI Magnesita

Fig. 9 Dilatation curve of a fired doloma brick compared to a MgO-enriched doloma brick

Fig. 10 Continuous matrix of CaO (light grey) depending on MgO (black) addition ? RHI Magnesita

Fig. 11 AOD process[10] ? R. McVinnie/RHI Magnesita

Fig. 12 Application of unshaped doloma products ?RHI Magnesita

Fig. 13 Bonding strength development of unshaped doloma products

Fig. 14 Dolomite mine reserve in Anhui Province, P. R. China ? RHI Magnesita

Fig. 15 Sinter plant in Anhui Province, P. R. China ? RHI Magnesita

Fig. 16 Microscopic view of sintered doloma from Chizhou plant (CaO (lime): light, MgO (periclase): dark) ? RHI Magnesita

Fig. 17 Hydraulic press (quadruple cavity) ? RHI Magnesita

Fig. 18 Cross-section of unfired, resin-bonded brick brand ? RHI Magnesita

Fig. 19 Tunnel kiln in Chizhou brick plant ?RHI Magnesita

Fig. 20 Cross-section of fired doloma brick ? RHI Magnesita