Patent ID: 11912630
Assignee: HUBEI UNIVERSITY OF TECHNOLOGY
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  Y | IPC C

Claim 2:
3. The method of claim 1, comprising:
(1) placing 100 parts by mass of the phosphogypsum, 1 to 2 parts by mass of the grinding aid, 20 parts by mass of the sodium-containing alkali component, 200 to 300 parts by mass of the zirconia balls, and 200 to 300 parts by mass of the water into the wet grinding tank for the wet grinding, and after 10 min to 30 min of the wet grinding, then introducing CO2 at the flow rate of 2.0 to 2.2 parts by mass/min and keeping the temperature of the wet grinding slurry below 40° C., and when the wet grinding slurry reaching the pH value of 10, ending the wet grinding and sieving out the zirconia balls from the wet grinding slurry;
(2) mixing the wet grinding slurry with 700 parts by mass of the slag and 100 to 200 parts by mass of the water to obtain the recycled cementitious material.