Decolorization Function of Activated Carbon and Its Application in Food Processing
Activated carbon is widely used in the field of decolorization. Activated carbon used in decolorization is generally powdered activated carbon, which is usually mixed with the decolorized solution, and then filtered or precipitated to separate the final decolorization solution.
Procedures and precautions for decolorization with activated carbon:
1. Before adding activated carbon, the compounds to be crystallized are heated and dissolved in solvents.
2. After the hot solution is slightly cooled, activated carbon is added and shaken to make it evenly distributed in the solution. If the inverted carbon is added to the solution at the return boiling point, the nine-base boiling is easy to be induced and the solution is easy to rush out.
3. Glycerol added with activated carbon, depending on the amount of impurities, is generally 1-5% of the crude bone. When excessive glycerol is added, activated carbon will adsorb some pure products.
4. Activated carbon has the best decolorization effect in aqueous solution and can be used in other solvents, but it is less effective in non-Brinell solvents such as meridians.
Main industrial application fields of decolorization of activated carbon (industrial application of activated carbon also requires high mechanical strength and good wear resistance, its structure strives to be stable, and the energy required for adsorption is small to facilitate regeneration): sugar, glutamic acid and salt in food industry, lactic acid and salt, citric acid and salt, wine, condiments, animal and plant protein, biochemical products, pharmaceutical intermediates, vitamins, vitamins, etc. Decolorization, refining, deodorization and impurity removal of antibiotics and other products.