A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to porous cordierite with catalytic activity and a preparation method of the porous cordierite. The porous cordierite comprises the following components in percentage by mass: 36.6% of talc, 43.1% of kaolin, 14.1% of aluminum oxide, 5.6% of carbon containing diatomite based on diatomite, 0.2% of La2Ce2O7, 0.3% of BaNb2O6 and 0.1% of BaTiO3. The preparation method comprises the following steps: mixing and grinding the raw materials and drying for 10 hours at 110 DEG C; then raising the temperature at a speed of 1 DEG C/minute to 800 DEG C in a nitrogen atmosphere and insulating for 5 hours; and then further raising the temperature at a speed of 1 DEG C/minute to 1350 DEG C in an air atmosphere and insulating for 10 hours. The cordierite is high in specific surface and low in coefficient of thermal expansion and has the catalytic activity.
The invention relates to porous cordierite with catalytic activity and a preparation method of the porous cordierite. The porous cordierite comprises the following components in percentage by mass: 36.6% of talc, 43.1% of kaolin, 14.1% of aluminum oxide, 5.6% of carbon containing diatomite based on diatomite, 0.2% of La2Ce2O7, 0.3% of BaNb2O6 and 0.1% of BaTiO3. The preparation method comprises the following steps: mixing and grinding the raw materials and drying for 10 hours at 110 DEG C; then raising the temperature at a speed of 1 DEG C/minute to 800 DEG C in a nitrogen atmosphere and insulating for 5 hours; and then further raising the temperature at a speed of 1 DEG C/minute to 1350 DEG C in an air atmosphere and insulating for 10 hours. The cordierite is high in specific surface and low in coefficient of thermal expansion and has the catalytic activity.
Cordierite porous ceramic and preparation method thereof
| European Patent Office | 2023
| European Patent Office | 2023
High-porosity cordierite porous ceramic and preparation method thereof
| European Patent Office | 2024