Preparation method of mizue brocade straw activated charcoal
A technology of straw activated carbon and water branch brocade, which is applied in the field of preparation of activated carbon, can solve the problems of unsatisfactory adsorption effect of activated carbon, difficulty in centralized collection of fruit shells, and limitation of activated carbon raw materials, and achieve the effect of low price, easy production and large pore volume
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[0011] As shown in the process flow chart of the present invention given in the drawings. Dry the Shuizhijin stalks naturally or at 105℃±5℃, and use a grinder to coarsely and moderately crush them to pass through a 70-100 mesh sieve; then put the raw materials into the tank in batches and use Phosphoric acid with a concentration of 50%-70% is soaked with a mass ratio of 2.5:1, and the soaking time is 3-4 hours; then it is placed in an activation furnace for carbonization and activation. The activation temperature is 450°C-500°C, and the activation time For 1.5-2.5 hours, or use nitrogen as protective gas in a microwave oven for carbonization and activation, the microwave power should be 1000W, and the microwave irradiation time should be 7-8min; then wash with water, concentrate the first washing liquid, and recover phosphoric acid , For reuse; wash at least three times with multi-stage countercurrent water, wash with clean water the last time, until the washing is neutral, the pH...
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