Innovative breakthrough of key process and equipments.

Project goal was to resolve an issue that’s been plaguing the TiO2 industry for many years, intermittent crystallization process of FeSO4 in the black liquor stage of TiO2 production. Using patented technology from PengYue Science and Technology, we became the first and currently the only company in China to successfully achieve continuous, non steam reliant, crystallization of FeSO4. 

New equipment detailed breakdown 

Stage 1, Flash evaporation, removed the need for steam reliant vacuum pumps and allows for continuous material feeding. 

Stage 2, Continuous flow cooling crystallization, solved a key pain point of traditional cooling crystallization where significant scaling occurs around the cooling coils, also allows for continuous material feeding.

Overall successfully creating a leading and unique crystallization process that; requires no steam; minimal manpower; can operate continuously; reduces Iron III Sulphate scaling; reduces titanium loss and creates uniformed large FeSO4 crystals.

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