Method for preparing sodium alginate based on powder form absorption and separation
An adsorption separation and sodium alginate technology, which is applied in the field of sodium alginate preparation, can solve the problems of reducing production efficiency, affecting process progress, and slow reaction, and achieves the effects of improving progress, shortening digestion time, and increasing speed
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Embodiment 1
[0024] A kind of sodium alginate preparation method based on powder form adsorption separation, comprises steps as follows:
[0025] S1. Pre-processing: chop the kelp by a shredder, then send the chopped kelp into the water for cleaning, and immediately refrigerate the kelp after cleaning, and complete the refrigeration after the water on the surface of the kelp freezes. The temperature is minus 6°C, and the refrigerated time is 20 minutes. Finally, the kelp that has been refrigerated is ground into powdered kelp by a grinder, and the grinding time is 20 minutes; the powdered kelp is immersed in formaldehyde solution Stir evenly in the medium to obtain the powdery sea-tangle liquid, and the addition amount of the formaldehyde solution is 1 time of the powdery sea-tangle.
[0026] S2. Adsorption and separation: add silica airgel powder to the powdery kelp liquid, stir evenly to obtain a mixed solution, then let it stand, and after standing and layering, filter and separate the ...
Embodiment 2
[0032] A kind of sodium alginate preparation method based on powder form adsorption separation, comprises steps as follows:
[0033] S1. Pre-processing: chop the kelp by a shredder, then send the chopped kelp into the water for cleaning, and immediately refrigerate the kelp after cleaning, and complete the refrigeration after the water on the surface of the kelp freezes. The temperature is minus 8°C, and the refrigerated time is 25 minutes. Finally, the kelp that has been refrigerated is ground into powdered kelp by a grinder. The grinding time is 25 minutes; the powdered kelp is immersed in the formaldehyde solution and stirred Evenly, powdery sea-tangle liquid is obtained, and the addition of formaldehyde solution is 1.5 times of powdery body sea-tangle.
[0034] S2. Adsorption and separation: add silica airgel powder to the powdery kelp liquid, stir evenly to obtain a mixed solution, then let it stand, and after standing and layering, filter and separate the mixed solution ...
Embodiment 3
[0040] A kind of sodium alginate preparation method based on powder form adsorption separation, comprises steps as follows:
[0041] S1. Pre-processing: chop the kelp by a shredder, then send the chopped kelp into the water for cleaning, and immediately refrigerate the kelp after cleaning, and complete the refrigeration after the water on the surface of the kelp freezes. The temperature is minus 10°C, and the refrigerated time is 30 minutes. Finally, the kelp that has been refrigerated is ground into a powdered kelp by a grinder. The grinding time is 30 minutes; the powdered kelp is immersed in the formaldehyde solution and stirred Uniformly, powdery sea-tangle liquid is obtained, and the addition of formaldehyde solution is 2 times of powdery body sea-tangle.
[0042] S2. Adsorption and separation: add silica airgel powder to the powdery kelp liquid, stir evenly to obtain a mixed solution, then let it stand, and after standing and layering, filter and separate the mixed solutio...
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