Method for producing 4A type zeolite molecular sieve and quartz sand by utilizing granite powder and alkaline aluminum dross
A technology of granite powder and quartz sand, which is applied in the field of quartz sand to produce 4A zeolite molecular sieve, and achieves the effect of low cost
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Embodiment 1
[0019] Weigh the two according to the mass ratio of dry alkaline aluminum slag to sodium hydroxide solid of 1.02:1, first make sodium hydroxide into a solution with a concentration of 6 mol / L and boil it, then add the dry alkaline aluminum slag in several times, Continue to boil until the amount of residual slag no longer decreases, filter, and the resulting clear liquid is set aside.
[0020] Granite powder and sodium carbonate were mixed evenly at a mass ratio of 1:0.9, and calcined at a temperature of 780°C for 150 minutes. Then the calcined product is mixed and stirred according to the ratio of the original granite powder to the clear liquid and water mass ratio prepared in the previous step of 1:0.895:41, and the gel and particles are separated. The gel was crystallized at 100°C for 5 hours, filtered, and the obtained gel was washed with water until pH = 9-10, and then dried at 110°C to obtain 4A type zeolite molecular sieve powder. After the obtained particles are separ...
Embodiment 2
[0022] Weigh the two according to the mass ratio of dry alkaline aluminum slag to sodium hydroxide solid of 1.2:1, first make sodium hydroxide into a solution with a concentration of 8 mol / L and boil it, then add the dry alkaline aluminum slag in several times, Continue to boil until the amount of residual slag no longer decreases, filter, and the resulting clear liquid is set aside.
[0023] Granite powder and sodium carbonate were mixed evenly at a mass ratio of 1:0.8, and calcined at a temperature of 830°C for 100 minutes. Then the calcined product is mixed and stirred according to the ratio of the original granite powder to the clear liquid and water mass ratio prepared in the previous step of 1:0.734:41, and the gel and particles are separated. The gel was crystallized at 100°C for 5 hours, filtered, and the obtained gel was washed with water until pH = 9-10, and then dried at 110°C to obtain 4A type zeolite molecular sieve powder. After the obtained particles are separa...
Embodiment 3
[0025] Weigh the two according to the mass ratio of dry alkaline aluminum slag to sodium hydroxide solid of 1.1:1, first make sodium hydroxide into a solution with a concentration of 7 mol / L and boil it, then add the dry alkaline aluminum slag in several times, Continue to boil until the amount of residual slag no longer decreases, filter, and the resulting clear liquid is set aside.
[0026] Granite powder and sodium carbonate were mixed evenly at a mass ratio of 1:0.7, and calcined at a temperature of 810°C for 130 minutes. Then the calcined product is mixed and stirred according to the ratio of the original granite powder to the clear liquid and water mass ratio prepared in the previous step of 1:0.985:63, and the gel and particles are separated. The gel was crystallized at 98°C for 5 hours, filtered, and the obtained gel was washed with water until pH = 9-10, and then dried at 110°C to obtain 4A zeolite molecular sieve powder. After the obtained particles are separated, t...
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