Small Chlorine Furnace | Capable of Removing Metal Impurities Difficult to Eliminate with Wet and Magnetic Separation

Reduce wastewater from wet processing and drying processes, and remove metal impurities through selective chlorination.

In powder raw materials and functional materials, metal impurities such as Fe, Cu, and Ni can affect product characteristics and yield. Particularly in battery materials, ceramics, semiconductor materials, and high-purity powders, there is an increasing demand for managing metal impurities at levels ranging from ppm to ppb. Traditionally, methods such as wet processing for dissolution removal and magnetic separation for recovering magnetic particles have been common. However, wet processing poses challenges related to wastewater treatment, drying processes, and recontamination, while magnetic separation can struggle to remove non-magnetic metal compounds and fine adherents. To address these issues, we propose a "small chlorine furnace" that uses halogen gases such as Cl2 and HCl to convert metal impurities into volatile chlorides for separation. [For such challenges] ■ We want to reduce wastewater and drying processes in wet processing. ■ We want to reduce Fe/Cu/Ni impurities at ppm to ppb levels. ■ We want to remove metal impurities that cannot be captured by magnetic separation. ■ We want to process impurities within powders, porous bodies, and ceramics. ■ We want to confirm Cl2/HCl treatment conditions with small sample sizes. *For more details, please download the materials or contact us.

Industrial Furnace