Calcium oxide and distilled water are added to the reactor in a certain proportion to fully stir and cool down. When the temperature drops to the specified reaction temperature, constant temperature is maintained and a certain amount of chemical additives are added. After stirring for about 20min, carbon dioxide is added for carbonization reaction. Continue to inject carbon dioxide to the end of the reaction, the end of the reaction liquid pH 6 ~ 7. The product was filtered, dried and pulverized in the oven at 80℃, and the product chain calcium carbonate was obtained.
The calcium carbonate slurry is added to the surface treatment kettle, the treatment temperature is controlled by a super constant temperature tank, the stirring rate is adjusted by a powerful electronic agitator, the treatment agent emulsion is added and treated for a certain time. The treated calcium carbonate slurry was filtered while hot, and the cake was dried and pulverized to obtain active calcium carbonate powder. The active calcium carbonate powder with different dosage was obtained by adjusting the treatment dose.
Quantitative chelating agents and dispersants, such as aliphatic (polyhydroxyl) carboxylic acids, oxycarboxylic acids, thiocarboxylic acids, aromatic sulfonic acids, amino acids, etc. are added to lime milk with a certain concentration. Such as calcium hydroxide is 0.1~10 g/100 g, the main dispersant aluminum salt, sodium salt, zinc salt, iron salt, magnesium salt and other amounts of 0.05 ~ 5 g/100 g. In the normal temperature range, the volume concentration of carbon dioxide gas is 70%, and the bubbling carbonization reaction is carried out under agitation until the pH value of the reaction end point is 7 ~ 8.
The bed carbonization method of 4-vessels brewing project has advanced technology and the product particle size is 15-30nm, which is the development direction of the production process of nano-sized powder inorganic salt in the future.
4-vessels brewing project https://www.haishunmachinery.com/BREWING/Brewhouse/SELECTBYLITRE/MORETHAN3600L/4VesselsProfessionalbrewingprojectsupplier.html