Preparation method of fish scale-based composite solid alkali
A technology of solid alkali and fish scales, applied in chemical instruments and methods, liquid carbon-containing fuels, fatty acid esterification, etc., can solve the problems of easy deactivation, short service life, poor stability, etc., and achieve low cost and alkali The effect of good stability and simple preparation steps
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example 1
[0017] First weigh 3kg of fish scales, use water to clean its surface, soak it in an ethanol solution with a mass fraction of 50%, and use a sodium hydroxide solution with a mass concentration of 40% to adjust the pH to 8.5. Rotate at a speed of 130r / min and stir for 4 hours, then filter, collect the filtered fish scales and put them in an oven, and dry them at 92°C for 15 hours; Put it into a tubular carbonization furnace, under the protection of nitrogen, raise the temperature to 390°C at a rate of 5°C / min, keep the temperature for 6 hours and then cool it down to room temperature naturally, take out the carbonized product and put it into a container, add 1200mL of % hydrochloric acid solution, filtered at a rotating speed of 120r / min for 50min, and collected the filtrate; then put the obtained filtrate in an oven at 90°C to dry for 2 hours, then took it out and put it into a pulverizer for pulverization, passed through a 100-mesh sieve, and The obtained granules are put int...
example 2
[0019] First weigh 1 kg of fish scales, clean its surface with water, soak it in an ethanol solution with a mass fraction of 50%, adjust the pH to 8.0 with a sodium hydroxide solution with a mass concentration of 40%, and at a temperature of 40°C, Rotate at a speed of 130r / min and stir for 2 hours before filtering, collect the filtered fish scales and put them in an oven, and dry them at 90°C for 10 hours; Put it into a tube-type carbonization furnace, under the protection of nitrogen, raise the temperature to 360°C at a rate of 5°C / min, keep the temperature for 3 hours and then cool to room temperature naturally, take out the carbonized product and put it into a container, add 900mL of % hydrochloric acid solution, filtered at a rotating speed of 120r / min for 40min, and collected the filtrate; then put the above-mentioned filtrate in an oven at 85°C for 1 hour to dry, then take it out and put it into a pulverizer for pulverization, pass through a 100-mesh sieve, and The obtai...
example 3
[0021]First weigh 2kg of fish scales, use water to clean its surface, soak it in an ethanol solution with a mass fraction of 50%, use a sodium hydroxide solution with a mass concentration of 40% to adjust the pH to 8.2, and at a temperature of 42°C, Rotate at a speed of 130r / min and stir for 3 hours, then filter, collect the filtered fish scales, put them in an oven, and dry them at 91°C for 12 hours; Put it into a tube-type carbonization furnace, under the protection of nitrogen, raise the temperature to 370°C at a rate of 5°C / min, keep the temperature for 5h and then cool it down to room temperature naturally, take out the carbonized product and put it into a container, add 1000mL to the container with a mass fraction of 32 % hydrochloric acid solution, filtered at a rotating speed of 120r / min for 45min, and collected the filtrate; then put the above-mentioned filtrate in an oven at 87°C for 1 hour to dry, then take it out and put it into a pulverizer for pulverization, pass ...
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