Aluminium modified silica-gel adsorbent material and its preparing process
A silica gel adsorption, aluminum modification technology, applied in the direction of silicon compounds, inorganic chemistry, non-metallic elements, etc., can solve the problems of enhanced heat resistance, poor mechanical strength of rotating core materials, enhanced mechanical strength, etc., to achieve improved service life, Enhanced heat resistance and improved mechanical strength
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Embodiment 1
[0025] The inventive method comprises the following specific steps: (1) at room temperature, in a 250L circular plastic container, add 100L of water, then add 80Kg of water glass with a modulus of 3.0, stir evenly, and heat-roll the molded glass of inorganic fiber paper Put the honeycomb core (300mm×150mm) into it and soak it for 3 hours, make it fully soaked, take it out and dry it in the air, then dry it at 60°C for 18 hours, and cool it to room temperature; (2) Weigh 30Kg of crystalline sulfuric acid Dissolve aluminum in 120L of water, add acetic acid to adjust the pH value of the solution to 1.0, raise the temperature to 50°C, immerse the above-mentioned honeycomb core in it under strong stirring, and strictly control the reaction under the condition that the pH value of the solution is 1.0 (with As the reaction continues, the pH value of the solution increases, and it is necessary to add acid solution from time to time, the same below), take it out after 12 hours, rinse w...
Embodiment 2
[0027]The inventive method comprises the following specific steps: (1) at room temperature, in a 250L circular plastic container, add 100L of water, then add 100Kg of water glass with a modulus of 3.5, stir evenly, and heat-roll the inorganic fiber paper Honeycomb core (5300mm×150mm) was soaked in it for 5 hours to make it fully soaked, took it out to dry, then dried at 60°C for 24 hours, cooled to room temperature; (2) Weighed 40Kg crystalline aluminum chloride to dissolve In 120L of water, heat up to 60°C, under strong stirring, immerse the above honeycomb core in it, add lactic acid to adjust the pH value of the solution to 1.5, take it out after 18 hours of reaction, rinse with clean water and dry it, and then put it in an oven Dry at low temperature at 60°C for 24 hours, and cool to room temperature; (3) Place the rotor in an intelligent constant temperature sintering furnace, first slowly heat up at 200-300°C, and cool naturally, repeat 2-3 times, and then slowly heat up...
Embodiment 3
[0029] The inventive method comprises the following specific steps: (1) at room temperature, in a 250L circular plastic container, add 100L of water, then add 100Kg of water glass with a modulus of 2.8, stir evenly, and heat-roll the inorganic fiber paper The honeycomb rotor (300mm×150mm) was soaked in it for 2 hours to make it fully soaked, took it out to dry, then dried at 60°C for 12 hours, and cooled to room temperature; (2) Weighed 45Kg of crystalline aluminum nitrate and dissolved it in 120L Add gluconic acid to adjust the pH value of the solution to 1.8, raise the temperature to 40°C, immerse the above-mentioned honeycomb core in it under vigorous stirring, rinse it with clean water until the pH is neutral after 24 hours, take it out and dry it, and then place it in the Dry in an oven at 60°C for 24 hours, and cool to room temperature; (3) Place the rotor in an intelligent constant temperature sintering furnace, first slowly heat up at 200-300°C, and cool naturally, rep...
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Abstract
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