Japanese alliance focuses on titanium recycling

Three Japanese companies—Asahi Kasei, Nippon Steel, and Nippon Steel Trading—have launched a collaborative initiative to convert titanium scrap generated during chlor-alkali electrolysis cell production into feedstock for pure titanium. The program targets a reduction in environmental impact and an increase in recovered material value across the cell manufacturing value chain.

Chlor-alkali electrolysis yields caustic soda and chlorine and relies on titanium for corrosion resistance on the anode side. Achieving the required purity and processability necessitates very high-purity titanium, making contamination control essential in scrap reuse.

Under the initiative, Asahi Kasei will remelt the titanium scrap at its Nobeoka site. Nippon Steel Trading will collect and process the scrap into a form suitable for remelting, with a portion of the sorted material returned to Nippon Steel for use in its industrial-grade titanium melting processes conducted with Nippon Steel's equipment.

Asahi Kasei will implement strict process controls and digital traceability to prevent contamination and ensure material quality throughout the recycling loop.

Representatives from the collaborating firms frame the effort as a practical move to circulate resources and strengthen sustainability across the chlor-alkali sector. The collaboration combines Nippon Steel's advanced industrial-grade titanium remelting technology with Asahi Kasei's long-standing titanium scrap management within its manufacturing operations, while Nippon Steel Trading emphasizes recovering and supplying high-purity titanium scrap as a strategic input for remelting.

The alliance signals a concrete step toward decarbonization and circularity in titanium supply within the industrial chemistry ecosystem, aligning company sustainability objectives with material value retention.