Hot sale active calcium carbonate

Active calcium carbonate
(1) appearance: white powder, non-toxic, tasteless, no stimulation, no burning, no explosion, low refractive index, easy coloring, insoluble in water, stable in the air.
(2) after the activation process, the molecular structure of the product is changed, the size distribution is even, and the product is very strong.
(3) with the characteristics of high whiteness, good fluidity, good gloss, uniform dispersion, large filling capacity, etc.. And has excellent lubrication, mobility, dispersion and organic.
(4) molecules with strong affinity between the rubber and plastic, the filling amount may be more than ordinary calcium carbonate filled 2-5 to several times, the overall production cost is obviously reduced.
(5) low oil absorption value, high whiteness, high degree of extension, and its unique characteristics of the super metal stripping and significant lubrication effect can also improve the surface of the product light brightness, wear and impact strength.
(6) can reduce the wear of processing machinery, improve product processing technology, improve product performance, has a better reinforcing effect.
(7) the product is used in the advanced coating, can improve the solid filling quantity, reduce viscosity, also give coating wear resistance, corrosion resistance, reduce the baking temperature, baking time, improve product quality, reduce production cost, has obvious economic benefits.
(8) Liquidity: active calcium products due to molecular organic surfactants by low surface tension coating, its surface energy is low activation products between the particles, the viscous resistance decreased, improve the flow properties of particles, so the powder is similar to liquid flow
(9) the dispersion: by the active products with good flow performance can be seen in the dispersion of the difference, active calcium products due to good dispersion, in the application process and the base material with good compatibility and dispersion. Particle penetration ability is also strong, it is easy to form dust, ordinary woven bags of products in the process of loading and unloading and the use of large dust. [1]
Production process of active calcium carbonate
Activated calcium carbonate production process and production of light calcium carbonate roughly the same, but in the carbonization of this process should be strictly controlled conditions, so that the formation of a fine Calcium Carbonate Granules, and then the activation agent for surface treatment. The limestone mixed with coal, the ratio of about 7.5, at the temperature of 900-1000 DEG C in the lime kiln calcination, the carbon dioxide gas washing dust evacuation carbonization tower, lime into the digestion tank, fully digested by 80-90 hot water, made about 9% concentration of emulsion into the carbonization tower, through carbonization of carbon dioxide, when carbonation suspension pH value equal to 7 as the end point of the reaction, the introduction of activating agent, surface treatment of calcium carbonate formation. Dry surface treatment and wet surface treatment, usually using the wet surface treatment process, due to the method can be a high degree of activity, good dispersion, high transparency of the active calcium carbonate. Now add activator generally have titanate coupling agent and stearic acid and lignin, the amount of about 1%-5%. After finishing the chemical treatment, the production of the raw material with high whiteness was separated and dried.
General production of light calcium carbonate factory, only for some equipment and technology to be improved, such as improving the reaction tower, increasing the temperature control, gas flow and surface modification, can produce active calcium carbonate qualified products, increase the added value of the product, create benefits.