Activated carbon decolorization issue
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In the production process, when impurities in the liquid feed accumulate to a certain level, decolorization is necessary. However, the material is in an acidic environment and contains a certain amount of oxalic acid, around 10%; ordinary activated carbon cannot be used for decolorization. Please provide some guidance on what type of carbon can be used for decolorization in acidic conditions, or other decolorization methods would also work, as the liquid feed contains some viscous macromolecular substances.
1. Activated carbon exhibits a better adsorption capacity for charged molecules in acidic and neutral environments compared to alkaline environments. 2. The adsorption of inorganic ions by activated carbon is very low. 3. Activated carbon has a better adsorption capacity for uncharged molecules than for charged molecules. 4. Activated carbon has an aromatic ring structure, making it highly effective at adsorbing aromatic organic compounds, as well as other organic compounds with longer carbon chains. 5. Activated carbon exhibits the best adsorption efficiency at an ambient temperature of 30 degrees Celsius.
If the acidity is too high, you can adjust the pH first
What is the processing capacity? What type of organic substances are the main impurities inside?
This post was last edited by Desert Fish on 2015-11-19 at 13:36; it depends on whether they are organic pigment molecules or some salts. We have carried out many decolorizations under acidic conditions using resin. If you’re interested, feel free to contact me.
This post was last edited by Desert Fish on 2015-11-19 at 13:37. I’m not sure what the main components of the pigments are; we have used resin to carry out many decolorization processes under acidic conditions. If you’re interested, I hope I can help you.
Acidic? We still use activated carbon for decolorization even though the sulfuric acid content is 32-35%
What kind of decolorization do you do! Could you tell me which brand of carbon is being used?
I only know that it’s from Weifang; I don’t know which specific company it is