A kind of preparation method of beer silica gel
A silica gel and beer technology, applied in the field of silica gel, can solve the problems of uneven product adsorption, wide pore size distribution, small specific surface area, etc., and achieve the effect of less steps, narrow pore size distribution, and large specific surface area.
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Embodiment 1
[0026] Add 10m to the container 3 The water used as the bottom liquid was placed in a water bath and heated to 60°C, then 50kg of glycerin was added to the reaction kettle, and stirred at constant temperature for 5 minutes;
[0027] Take 1000L of the above-mentioned mixture of water and glycerin, set the stirring speed at 200r / min, add dropwise a sodium silicate solution with a molar concentration of 1mol / L to the reaction kettle, adjust the pH value of the reaction solution to 8, and then add Sodium silicate solution with a molar concentration of 1mol / L and sulfuric acid solution with a molar concentration of 4mol / L, and continue to add sodium silicate solution dropwise. The pH value of the control process is 8-10, and the total amount of sodium silicate solution added is 1000L , after adding, the adding rate of sodium silicate solution is 6000L / h;
[0028] Continue to drop sulfuric acid until the end point pH value is 2.5;
[0029] After the reaction is complete, reduce th...
Embodiment 2
[0033] Add 10m to the container 3 The water used as the base solution was placed in a water bath and heated to 60°C, then an appropriate amount of glycerin 500kg was added to the reaction kettle, and stirred at constant temperature for 10 minutes;
[0034] Take 1000L of the above-mentioned mixed solution of water and glycerin, set the stirring speed to 250r / min, add dropwise a sodium silicate solution with a molar concentration of 1.2mol / L to the reaction kettle, adjust the pH value of the reaction solution to 10, and then At the same time, add a sodium silicate solution with a molar concentration of 1.2mol / L and a sulfuric acid solution with a molar concentration of 4mol / L, and continue to add the sodium silicate solution dropwise to control the pH value of the process at 8 to 10. The total addition of the sodium silicate solution The volume is 1000L, after adding, the adding speed of sodium silicate solution is 11000L / h;
[0035] Continue to drop sulfuric acid until the ter...
Embodiment 3
[0040] Add 10m to the container 3 The water used as the base solution was placed in a water bath and heated to 60°C, then an appropriate amount of glycerin 300kg was added to the reaction kettle, and stirred at a constant temperature for 10 minutes;
[0041] Take 1000L of the above-mentioned mixture of water and glycerin, set the stirring speed at 200r / min, add dropwise a sodium silicate solution with a molar concentration of 1mol / L to the reaction kettle, adjust the pH value of the reaction solution to 9, and then add The sodium silicate solution with a molar concentration of 1mol / L and the sulfuric acid solution with a molar concentration of 4.2mol / L, and continue to add the sodium silicate solution dropwise to control the pH value of the process at 8 to 10. The total amount of sodium silicate solution added is 1000L, after adding, the adding rate of sodium silicate solution is 9000L / h;
[0042] Continue to drop sulfuric acid until the end point pH value is 2;
[0043] Aft...
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