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One of the key aspects of a modern white titanium dioxide factory is its commitment to sustainable practices. Factories are increasingly adopting eco-friendly technologies to minimize waste generation and reduce energy consumption. For instance, some factories utilize waste heat recovery systems to harness and reuse heat generated during production, significantly cutting down on energy costs and carbon emissions. Additionally, advanced filtration systems ensure that any byproducts are treated and disposed of responsibly, adhering to strict environmental regulations.

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  • Goshorn, J.H.; Black, C.K. (1929). The study of lithopone darkening. Industrial and Engineering Chemistry21 (4): 348–9. doi:10.1021/ie50232a021.
  • 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.