Preparation method and application method of granular activated carbon for xylose decolorization
A technology of granular activated carbon and powdered activated carbon, applied in sugar production, chemical instruments and methods, applications, etc., can solve the problems of no decolorization, long production cycle, harsh working environment, etc., and achieve easy adjustment and processing, and save production cost, and the effect of improving the production environment
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Embodiment 1
[0024] The present embodiment proposes a kind of preparation method of granular activated carbon for xylose decolorization, comprising the following steps:
[0025] (A) material preparation: the phosphoric acid method powdery activated carbon, acrylic acid emulsion, water with sawdust as raw material are weighed by the weight ratio of acrylic acid emulsion: phosphoric acid method powdery activated carbon: water=0.375:1:1, and the water content of the acrylic acid emulsion 34%.
[0026] (B) Mixing: Mix the above-mentioned raw materials and fully stir them, and smash the particles formed in the stirring process at the same time to achieve uniform mixing;
[0027] (C) Particle molding: Extrude the uniformly mixed raw materials through a granulator at a constant temperature of 90°C to make particles with a particle size of 3mm, and cool the formed granular activated carbon to 40°C through a rotating cooling drum. ~50°C;
[0028] (D) Drying: place the cooled granular activated carb...
Embodiment 2
[0036] The present embodiment proposes a kind of preparation method of granular activated carbon for xylose decolorization, comprising the following steps:
[0037] (A) material preparation: take sawdust as raw material phosphoric acid method powdery activated carbon, acrylic acid emulsion, water by weight ratio of acrylic acid emulsion: phosphoric acid method powdery activated carbon: water=0.38:1:1, the water content of described acrylic acid emulsion 33%.
[0038] (B) Mixing: Mix the above-mentioned raw materials and fully stir them, and smash the particles formed in the stirring process at the same time to achieve uniform mixing;
[0039] (C) Particle molding: Extrude the uniformly mixed raw materials through a granulator at a constant temperature of 90°C to make particles with a particle size of 4mm, and cool the formed granular activated carbon to 40 ~50°C;
[0040] (D) drying: place the cooled granular activated carbon at a temperature of 150° C. and dry for 30 minute...
Embodiment 3
[0048] The present embodiment proposes a kind of preparation method of granular activated carbon for xylose decolorization, comprising the following steps:
[0049] (A) material preparation: take sawdust as raw material phosphoric acid method powdery activated carbon, acrylic acid emulsion, water by weight ratio of acrylic acid emulsion: phosphoric acid method powdery activated carbon: water=0.385: 1: 1, and the water content of the acrylic acid emulsion 32.5%.
[0050] (B) Mixing: Mix the above-mentioned raw materials and fully stir them, and smash the particles formed in the stirring process at the same time to achieve uniform mixing;
[0051] (C) Particle molding: Extrude the uniformly mixed raw materials through a granulator at a constant temperature of 90°C to make particles with a particle size of 4.5mm, and gently roll and cool the formed granular activated carbon to 40~50℃;
[0052] (D) Drying: place the cooled granular activated carbon at a temperature of 158° C. an...
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