Patent ID: 11884575
Assignee: JUSHI GROUP CO., LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 3:
4. The composition of claim 1, comprising the following components with corresponding percentage amounts by weight:, SiO2
58.1-60.5%  

Al2O3
17.1-18.8%  

MgO
9.1-11.8% 

CaO
7.5-11.3% 

SrO
0.1-1.5% 

Na2O + K2O
0.15-1%

Li2O
0-0.75%

Fe2O3
0.05-1%

TiO2
 <0.8%

F2
 <0.4%

SiO2 + Al2O3
75.4-79% 

wherein
a weight percentage ratio C1=(Al2O3+MgO)/SiO2 is between 0.447 and 0.525; and

a weight percentage ratio C2=(CaO+MgO)/(SiO2+Al2O3) is between 0.215 and 0.29.