Patent ID: 11918972
Assignee: DECARBON TECHNOLOGY (SHENZHEN) CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 10:
11. The preparation method according to claim 3, wherein in the step of pore expanding, the azeotropic distillation comprises heating the calcium silicate hydrate gel and the organic alcohol solvent to a first temperature first, followed by distillation at constant temperature for 15-25 min, and then heating the same to a second temperature, followed by distillation at constant temperature for 35-45 min, wherein the first temperature is a boiling point temperature of a system formed by the organic alcohol solvent and water, and the second temperature is a boiling point temperature of the organic alcohol solvent;
and the drying is conducted at 80-85° C. for 10-14 h, and the calcination is conducted at 400-600° C. for 4-4.5 h.