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  • In the world of industrial materials, cost-effectiveness often goes hand in hand with performance. One such material that has gained significant attention due to its affordability and exceptional properties is Cheap Barium Sulfate Superfine. This compound, derived from the combination of barium and sulfuric acid, offers a compelling blend of efficiency and economy, making it a popular choice across a wide range of industries.
  •  The invention relates to a production process of an inorganic pigment lithopone, in particular to a method for producing nanometer lithopone by using electrolytic zinc acid leaching residue. Background technique
  • Titanium Dioxide Manufacturers An Overview
  • Titanium dioxide works by absorbing, reflecting, and scattering UV radiation. When UV rays come into contact with titanium dioxide particles, they are either absorbed or reflected back into the atmosphere. This process helps to protect the skin from UVB and UVA rays, which can cause sunburn, skin aging, and even skin cancer.
  • Lithopone, a zinc sulfide-based white pigment, has been used for over a century due to its excellent hiding power, low cost, and environmental friendliness. However, concerns about its potential toxicity have led to a gradual decline in its use. In contrast, titanium dioxide (TiO2) has emerged as a popular alternative due to its superior whiteness, high refractive index, and strong UV protection properties.
  • The raw material used in this method is FeSO4. In order to maintain the Fe3 + concentration in the reaction medium in a specific range, reducing agent iron sheet is added in the reaction process. Iron yellow crystal seed was added and air was introduced to synthesize iron yellow under certain pH conditions. The method mainly includes two steps: (1) firstly, FeSO4 · 7H2O is used as raw material, NaOH or NH3 · H2O is used as precipitant or pH regulator, and air is used as oxidant to prepare crystal seed; (2) Iron yellow is produced by two-step oxidation with crystal seed, FeSO4, iron sheet and air.

  • In conclusion, China's titanium oxide industry has become a vital part of the country's economy, as it continues to produce high-quality pigment for a wide range of applications. With its strong position in the global market and ongoing efforts to improve sustainability, China is set to maintain its leading role in the production of titanium oxide for the foreseeable future.
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  • EFSA Scientific Conclusion on E171