Table 4.

Typical analyses of kaolin rock from various Chinese coalfields.

Location ProvinceDatong ShanxiYangquan ShanxiXuzhou JiangsuHuaibei AnhuiPubai ShanxiShizhishan Ningxia
from Wen Lu (1998)
Chemistry (wt.%)
SiO242.2844.7845.7345.6745.3340.30
Al2O339.3739.0538.6937.7538.7035.23
Fe2O30.330.450.470.280.040.62
TiO20.090.050.450.29Trace0.70
CaO0.580.660.090.620.540.21
MgO0.150.440.160.480.14
K2O0.940.150.160.190.170.16
Na2O0.360.100.140.880.200.15
LOI15.2215.3113.9214.0016.4721.88