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

Inactive Publication Date: 2016-06-08
梅庆波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problems of easy deactivation, poor stability and short service life when the solid base is used to catalyze the transesterification reaction, a method is provided which firstly carbonizes the fish scales from which the fat has been removed, and then utilizes hydrochloric acid to Remove the impurities in the carbonized fish scale to form a porous shape, and finally mix it with lanthanum nitrate and other substances, so that the porous fish scale mixture absorbs lanthanum ions and other substances at high temperature to fill the gaps, thereby preparing a fish scale-based composite solid Alkali, the scale-based composite solid alkali prepared by the invention has good stability, high activity and long cycle life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention relates to a preparation method of fish scale-based composite solid alkali and belongs to the technical field of solid alkali preparation. The preparation method includes: removing the fat of fish scales, mixing the fish scales with glucose, carbonizing the mixture, mixing the carbonized product with a hydrochloric acid solution, filtering, collecting filtered substances, drying the filtered substances, mixing the dried filtered substances with diacetone, lanthanum nitrate and the like, reacting in a reaction kettle, standing for aging, discharging, performing vacuum filtration on the discharged substances, calcining the filtered substances, cooling, and crushing to obtain the fish scale-based composite solid alkali. The fish scale-based composite solid alkali prepared by the method is good in stability, high in activity, and capable of being reused for 7-8 times without activity change. The preparation method is simple in preparation step and low in cost.

Description

technical field [0001] The invention relates to a preparation method of fish scale-based composite solid base, which belongs to the technical field of solid base preparation. Background technique [0002] With the strengthening of environmental protection awareness and the development of green chemistry, people pay more and more attention to the new catalytic process of environmental friendliness. The application research of solid alkali instead of liquid alkali in fine chemical production process is more and more extensive. Compared with liquid alkali, Solid base has the following advantages: (1) recyclable, environmentally friendly, non-corrosive, avoiding the use of polar solvents or phase transfer agents; (2) high selectivity, mild reaction conditions, and easy separation of products; (3) can make the reaction The process is continuous and the production capacity of the equipment is improved; (4) It can react at high temperature or even in the gas phase. [0003] The co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/10B01J35/10C10L1/02C11C3/10
CPCB01J23/10B01J35/10C10L1/02C11C3/10
Inventor 梅庆波薛红娟宋国
Owner 梅庆波
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