Method for preparing fracturing propping agent special for shale gas from fly ash
A fracturing proppant and shale gas technology, which is applied in applications, clay products, household appliances, etc., can solve the problems that affect the prospect of industrial production and popularization and application, poor mechanical properties of proppant, sintering temperature, and complex molding methods, etc. Achieve the effect of environmental protection, high activity and fine particle size
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Embodiment 1
[0034] 1) Put industrial coke into a ball mill, use alumina balls as balls and add water to wet mill for 1 hour to form powdered carbon slurry, which passes through a 180-mesh sieve; among them, during wet grinding of industrial coke, control alumina balls and industrial coke The mass ratio with water is 2:1:0.6;
[0035] 2) According to the mass percentage, 60% active Al 2 o 3 Powder, 30% silicon powder and 10% zirconium powder are evenly mixed to obtain a highly active composite sintering aid; among them, the active Al 2 o 3 The particle size of powder, silica powder and zirconium powder are all less than 5μm;
[0036] 3) According to the mass percentage, mix 75% fly ash, 20% kaolin, 4.5% composite sintering aid, and 0.5% industrial coke to obtain a mixture, put the mixture into a ball mill and use alumina balls The stone is used as a grinding ball and wet-milled with water for 3 hours to form a mixed slurry, and the mixed slurry is passed through a 320-mesh sieve; where...
Embodiment 2
[0041] 1) Put industrial coke into a ball mill, use alumina balls as balls and add water to wet mill for 0.9h to form powdered carbon slurry, which passes through a 180-mesh sieve; among them, during wet grinding of industrial coke, control alumina balls and industrial coke The mass ratio to water is 2.2:1:0.7;
[0042] 2) According to the mass percentage, 63% active Al 2 o 3 Powder, 28% silicon powder and 9% zirconium powder are mixed to obtain a highly active composite sintering aid; among them, the active Al 2 o 3 The particle size of powder, silica powder and zirconium powder are all less than 5μm;
[0043] 3) According to the mass percentage, mix 78% fly ash, 18.3% kaolin, 3% composite sintering aid, and 0.7% industrial coke to obtain a mixture, and put the mixture into a ball mill to form alumina The ball stone is used as a ball and wet-milled with water for 2.5 hours to form a mixed slurry, which is passed through a 320-mesh sieve; wherein, when the mixture is wet-g...
Embodiment 3
[0048] 1) Put industrial coke into a ball mill, use alumina balls as balls and add water to wet mill for 0.8h to form powdered carbon slurry, which passes through a 180-mesh sieve; among them, during wet grinding of industrial coke, control alumina balls, industrial The mass ratio of coke and water is 2.3:1:0.7;
[0049] 2) According to the mass percentage, 66% active Al 2 o 3 Powder, 26% silicon powder and 8% zirconium powder are evenly mixed to obtain a highly active composite sintering aid; among them, the active Al 2 o 3 The particle size of powder, silica powder and zirconium powder are all less than 5μm;
[0050] 3) According to the mass percentage, mix 80% fly ash, 15% kaolin, 4.2% composite sintering aid, and 0.8% industrial coke to get a mixture, put the mixture into a ball mill and use alumina balls The stone is used as a grinding ball and wet-milled with water for 2 hours to form a mixed slurry, and the mixed slurry is passed through a 320-mesh sieve; wherein, d...
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