High-Purity Nano-In₂O₃

99.98% Pure

Directly recovered from high-impurity waste ITO targets via HCl leaching with selective Mo suppression, sulfide precipitation, and synergistic extraction for efficient In/Sn/Al separation.

Liu, Bingbing · Suying, Dong · Peiying, Li · Su, Shengpeng · Wenjuan, Wang · Yang, Shuzhen · Huang, Yanfang · Sun, Hu · Han, Guihong

Separation and Purification Technology 2026

Specifications

Purity

{'zh': '99.98', 'en': '99.98'} %

Overall In Recovery

{'zh': '77.8', 'en': '77.8'} %

HCl Leaching In Extraction

{'zh': '94', 'en': '94'} %

HCl Leaching Mo Dissolution

{'zh': '13', 'en': '13'} %

Advantages

Mo dissolution suppressed

HCl leaching selectively suppresses Mo dissolution to below 13% while extracting over 94% of In, Sn, and Al, achieving effective Mo separation.

In/Sn separation

Selective sulfide precipitation separates In from Sn, overcoming a major challenge in In recovery.

In/Al separation

TOA/TBP synergistic extraction is used for In/Al separation, further improving purity.

99.98% pure product

The final In₂O₃ product is 99.98% pure, ready for applications requiring high-purity indium oxide.

Applications

• Indium Recycling：Recover high-purity indium from waste, reducing mining dependence
• Transparent Conductive Oxides：Provide high-purity In₂O₃ feedstock for transparent electrodes
• Nanoparticle Applications：~25 nm particle size suitable for nanofunctional materials
• High-Purity Oxides：99.98% purity meets high-end oxide requirements