Process for recovering glucosamine in activated carbon
A technology of amino sugar and activated carbon in carbon, applied in amino sugar, sugar derivatives, sugar derivatives, etc., can solve the problems of wasting resources and affecting the environment, and achieve the effect of reducing electric energy, ensuring recovery quality, and ensuring recovery efficiency
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Embodiment 1
[0012] The present invention carries out according to the following processing steps:
[0013] 1) Add activated carbon and water into the reaction kettle at a ratio of 1:3 by weight, then stir and heat up to 80°C to dissolve the ammonia sugar in the activated carbon in the water;
[0014] 2) Separating the above-mentioned treated materials through a filter press for solid-liquid separation, and separating the solid-state activated carbon from the aqueous solution containing ammonia sugar;
[0015] 3) The aqueous solution containing glucosamine is distilled under negative pressure in a reaction kettle to obtain glucosamine.
[0016] In step 3), it is recovered by first standing still for distillation, and then turning on the stirring paddle for distillation, and the time for turning on the stirring paddle is set at 1 / 2 of the total distillation time; the stirring speed of the stirring paddle changes from slow to Quickly and gradually.
[0017] In the step 3) of the present in...
Embodiment 2
[0019] The present invention carries out according to the following processing steps:
[0020] 1) Add activated carbon and water into the reaction kettle at a ratio of 1:3.5 by weight, then stir and raise the temperature to 85°C to dissolve the ammonia sugar in the activated carbon in the water;
[0021] 2) Separating the above-mentioned treated materials through a filter press for solid-liquid separation, and separating the solid-state activated carbon from the aqueous solution containing ammonia sugar;
[0022] 3) The aqueous solution containing glucosamine is distilled under negative pressure in a reaction kettle to obtain glucosamine.
[0023] In step 3), it is recovered by first standing still for distillation, and then turning on the stirring paddle for distillation, and the time for turning on the stirring paddle is set at the 3 / 4 time point of the total distillation time; the stirring speed of the stirring paddle changes from slow to Quickly and gradually.
[0024] I...
Embodiment 3
[0026] The present invention carries out according to the following processing steps:
[0027] 1) Add activated carbon and water into the reaction kettle at a ratio of 1:2.5 by weight, then stir and raise the temperature to 75°C to dissolve the ammonia sugar in the activated carbon in the water;
[0028] 2) Separating the above-mentioned treated materials through a filter press for solid-liquid separation, and separating the solid-state activated carbon from the aqueous solution containing ammonia sugar;
[0029] 3) The aqueous solution containing glucosamine is distilled under negative pressure in a reaction kettle to obtain glucosamine.
[0030] In step 3), it is recovered by first standing still for distillation, and then turning on the stirring paddle for distillation, and the time for turning on the stirring paddle is set at 2 / 3 of the total time of distillation; the stirring speed of the stirring paddle changes from slow to Quickly and gradually.
[0031] In the step 3...
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