The general use of medicinal or chemical pure activated carbon. This kind of activated carbon particles is very fine, in powder form, the total surface area is particularly large, the adsorption capacity is very strong, the adsorption capacity is also very large, is the strongest kind of activated carbon adsorption force. But because the particles are too fine, the flow rate is too slow in the process of chromatography, the operation of pressure or decompression is needed, the procedure is more complicated, and the adsorption selectivity of various components is also poor, so it is less used in chromatography.
Medicinal or chemical pure activated carbon before leaving the factory after impurity treatment and metal limit inspection, can be used directly for chromatography. Industrial activated carbon is not processed by impurities before leaving the factory, often contains metal ions, affecting the separation effect, so it must be treated before use, its treatment methods are two.granular activated charcoalThe polishing slurry and processing technology of micro-abrasive slurry jet were studied.
Through the analysis of the physical and chemical properties of additives and their state changes under the jet, the comprehensive effects of the types and proportions of different additives, as well as the types, proportions and particle sizes of abrasive on the formation of uniform slurry, the promotion of good abrasive dispersion and the jet polishing effect were explored.
The effects of different types of nozzles, polishing slurry, jet distance, jet time, different initial RA, jet pressure and jet Angle on the surface profile, material removal depth and surface quality of the workpiece were studied through polishing experiments.coal activated carbon supplier