Method for preparing composite type fracturing propping agent by utilizing gold ore tailings and zirconium oxide

[0025] 1) Put the gold ore tailings and alumina powder into the ball mill for dry grinding, use alumina ball stone as the grinding medium, control the mass ratio of the ball and the raw material to 2:1, ball mill for 0.5h to 2h respectively, and then pass the 120 mesh sieve;

[0026] 2) Put 40% sieved gold mine tailings, 45% alumina powder and 15% high-temperature-resistant zirconia chopped fibers into the ball mill according to mass percentage, then add 10% gum aqueous solution to mix Evenly use alumina balls as the grinding medium, control the mass ratio of the grinding balls, the mixture and the aqueous gum solution to 2:1:0.3, grind for 0.5h to 3h to form a mixed slurry, and pass the slurry through a 300-mesh sieve;

[0027] Among them, alumina powder is α-alumina or corundum powder for industrial use, its corundum content is >98%, and its particle size is <10μm; high temperature resistant zirconia chopped fibers have a melting point greater than 1500°C-1700°C. High therm...

[0031] 1) Put the gold ore tailings and alumina powder into a ball mill for dry grinding, use alumina ball stone as the grinding medium, control the mass ratio of the ball and the raw material to 2.5:1, ball mill for 0.5h to 2h respectively, and then pass the 120 mesh sieve;

[0032] 2) Put 55% sieved gold mine tailings, 30% alumina powder and 15% high-temperature-resistant zirconia chopped fibers into the ball mill according to mass percentage, and then add 10% gum aqueous solution to mix Evenly use alumina balls as the grinding medium, control the mass ratio of the grinding balls, the mixture and the aqueous gum solution to 2.5:1:0.35, grind for 0.5h to 3h to form a mixed mud, and pass the mud through a 300-mesh sieve;

[0033] Among them, alumina powder is α-alumina or corundum powder for industrial use, its corundum content is >98%, and its particle size is <10μm; high temperature resistant zirconia chopped fibers have a melting point greater than 1500°C-1700°C. High ther...

[0037] 1) Put the gold ore tailings and alumina powder into a ball mill for dry grinding, use alumina ball stone as the grinding medium, control the mass ratio of the ball and the raw material to 3:1, ball mill for 0.5h to 2h and then pass the 120 mesh sieve;

[0038] 2) Put 50% sieved gold mine tailings, 40% alumina powder and 10% high-temperature-resistant zirconia chopped fibers into the ball mill according to mass percentage, and then add 10% gum aqueous solution to mix Evenly use alumina balls as the grinding medium, control the mass ratio of the grinding balls, the mixture and the aqueous gum solution to 3:1:0.38, grind for 0.5h to 3h to form a mixed slurry, and pass the slurry through a 300-mesh sieve;

[0039] Among them, alumina powder is α-alumina or corundum powder for industrial use, its corundum content is >98%, and its particle size is <10μm; high temperature resistant zirconia chopped fibers have a melting point greater than 1500°C-1700°C. High thermal stabilit...