Pyrophyllite

Grades NW- CG-1 NW- CG-2 NW- CG-3 SGP (Garhi-1) GH2:DDT (Garhi-2) GH1:DDT (Garhi-1) KH:CG2 (Khera-3) KH:CG3 (Khera-3) KH:CG1 (Khera1) High Alumina Pyrophyllite-Grade-1 High Alumina Pyrophyllite-grade-2 % LOI 5 5 4.2 0.3 0.2 0.3 0.28 0.13 0.26 0.33 0.5 % Al2O3 31-32 31-32 30 48.52 32.92 33.13 34.82 34.15 37.51 45.6 36.23 % SiO2 65 65 67.89 47.51 63.19 63.21 56.83 63.22 46.7 51.82 55.63 % Fe2O3 0.5 0.5 0.36 2.5 1.61 1.47 0.9 0.81 0.76 0.6 0.8 % TiO2 0.5 0.5 0.5 0.33 0.18 0.14 0.44 0.34 0.23 0.19 0.25 % CaO 0.15 0.15 0.12 0.44 0.21 0.12 0.53 0.18 0.28 0.29 0.3 % MgO TR TR TR TR TR TR TR TR TR TR TR % Na2O 0.15 0.15 0.18 0.26 0.25 0.25 0.65 0.22 0.32 0.2 0.25 % k2O 0.5 0.5 0.5 0.45 1.3 0.93 5.07 0.63 3.38 0.42 0.5 AP (%) – 0.65 7.28 7.17 7.07 3.49 5.6 9.77 3.6 BD (gm/cc) – 2.81 2.29 2.07 2.22 2.37 2.22 2.02 2.25 ASG – 2.83 2.47 2.22 2.39 2.45 2.35 2.24 2.33 PLC (%) At 1500Deg.C/2hrs – .-7.5 .-5.0 .-2.5 Melting .-6.25 .-2.52 .-9.82 Firing Behaviour – OK Swelling tendency Swelling tendency OK Swelling tendency OK Application Softer grade useful for Handicrafts, Fillers in rubber and for making Aluminium silicates A grade lower than NW-CG-1 Grade ceramics, chemicals, potteries, Synthetic Diamond Manufacturing, Paper,Rubber, handicrafts, Insulators Refractories ceramics, chemicals, potteries, Synthetic Diamond Manufacturing, Paper, Rubber, handicrafts, Insulators Refractories and ceramics

Chemical composition and XRD of Pyrophyllite Quartz Grade

Pyrophyllite Quartz Grade	KH-PQ	NW-PQ
LOI	2.68	2.88
SiO2	80.74	80.93
TiO2	0.41	0.33
Al2O3	14.91	15.34
Fe2O3	0.22	0.21
MnO	0.05	0.04
Cr2O3	TR	TR
CaO	TR	TR
MgO	0.12	0.11
Na2O	0.04	0.04
K2O	0.99	0.65
P2O5	0.04	0.03
ZrO2	0.04	0.05
Total	100.24	100.61
XRD	Quartz Pyrophyllite Muscovite	Quartz Pyrophyllite Muscovite
Thermal Expansion	Residual expansion: +1.091