As a very important raw material, people have begun to pay more attention to the production of white carbon black. Here is a new production method.


First crush the coal gangue or fly ash to a particle size less than 120 meshes, and then divide it into two steps:






The first step is to produce sodium silicate: mix the crushed coal gangue or fly ash with soda ash at a weight ratio of 1:50, and obtain sodium silicate after high-temperature smelting (1400~1500 ℃, 1 hour), water extraction and leaching (above 100 ℃, 4~5 hours), filtering to remove impurities, and concentrating the filtrate to 45~46 Baume degrees.






The second step is to produce white carbon black: first, sodium silicate is mixed into water glass solution (modulus: 2.4~3.6, SiO2 content: 4~10%), then acid leached in 5~20% sulfuric acid (28~32 ℃, 8~16 hours), heated to 80 ℃, stirred, adjusted to PH value: 5~7, matured for 20 minutes, filtered, washed, dried, and separated to obtain white carbon black. The white carbon black is active and has high purity.






This completes the production of white carbon black products. Our company specializes in producing white carbon black products, which is your best choice.