Modified adsorbent, refined grease and preparation method thereof
A technology for refining oil and adsorbent, applied in the field of refined oil and its preparation, modified adsorbent, and can solve problems such as poor effect
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Embodiment 1
[0072] (1) Preparation of layered double metal hydroxides
[0073] In a 2L beaker, add 1.0mol magnesium hydroxide and 1.0mol aluminum hydroxide respectively, then add 500mL water, stir to mix the magnesium hydroxide and aluminum hydroxide evenly to obtain a suspension; mix 1.0mol sodium bicarbonate and Add 200mL of water into a 500mL beaker, stir to dissolve completely, and obtain a sodium bicarbonate solution; then add the sodium bicarbonate solution to the above suspension, stir for 30 minutes to mix evenly, and obtain a mixed solution;
[0074] Slowly raise the temperature of the above mixture to 80-90°C, control the heating rate at 0.5-1.0°C / min, and react at 80-90°C for 3 hours, then cool to room temperature, keep stirring for 3 hours, and then slowly heat up to 60-70°C °C, the heating rate is controlled at 1.0-2.0 °C / min. The layered double metal hydroxide was obtained. After drying, the layered double metal hydroxide had a mass of 165 g. A suspension with a mass concen...
Embodiment 2
[0078] (1) Preparation of layered double metal hydroxides
[0079] In a 2L beaker, add 1.0mol magnesium hydroxide and 1.0mol calcium hydroxide respectively, then add 500mL water, stir to mix the magnesium hydroxide and aluminum hydroxide evenly to obtain a suspension; mix 2.4mol sodium sulfate and 500mL Add water into a 1000mL beaker, stir to dissolve completely, and obtain a sodium sulfate solution; then add the sodium sulfate solution to the suspension, stir for 30 minutes to mix evenly, and obtain a mixed solution;
[0080] Slowly raise the temperature of the above mixture to 80-90°C, control the heating rate at 0.5-1.0°C / min, and react at 80-90°C for 3 hours, cool to room temperature, keep stirring for 3 hours, and then slowly heat up to 60-70°C , the heating rate is controlled at 1.0-2.0°C / min, and the layered double metal hydroxide is obtained. The mass of the layered double hydroxide after drying was 160 g, and a suspension of the layered double hydroxide with a mass c...
Embodiment 3
[0084] (1) Preparation of layered double metal hydroxides
[0085] In a 2L beaker, add 1.0mol aluminum hydroxide and 1.0mol calcium hydroxide respectively, then add 500mL water, stir to mix the aluminum hydroxide and calcium hydroxide uniformly to prepare a suspension; mix 1.0mol sodium carbonate and 500mL Add water into a 1000mL beaker, stir to dissolve completely, and obtain a sodium carbonate solution; add the sodium carbonate solution to the above suspension, stir for 30 minutes to mix evenly, and obtain a mixed solution;
[0086] Slowly raise the temperature of the above mixture to 80-90°C, control the heating rate at 0.5-1.0°C / min, and react at 80-90°C for 3 hours; then cool to room temperature, keep stirring for 3 hours, and then slowly heat up to 60-70°C ℃, the heating rate is controlled at 1.0-2.0 ℃ / min, and the layered double metal hydroxide is obtained. The quality of the layered double metal hydroxide after drying is 160g, and the layered double metal hydroxide wit...
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