Method for enriching niobium and titanium in a mineral containing iron, niobium and titanium and a use of a nickel-containing substance

US12398441B2 · kind B2 · utility

Assignees

• BAOTOU RESEARCH INSTITUTE OF RARE EARTHS · CN
• NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO, LTD. · CN

Inventors

• Yubao LIU · Shanghai, CN
• Erxiong Zhao · Wukehudong, CN
• Xianheng Zhang · Wukehudong, CN
• Pengfei Yang · Kunshan, CN
• Yuan Li · Shandong, CN
• Guohua Chen · Sunnyvale, US
• Weidong Lv · Wukehudong, CN
• Rizeng Gao · Wukehudong, CN
• Xuchen Miao · Wukehudong, CN
• Bing Yu · Stow, US
• Fusheng Hou · Wukehudong, CN
• Quanjun Zhang · Wukehudong, CN
• Haitao Huang · Beijing, CN
• Qicao Yan · Wukehudong, CN
• Yang Zhang · San Diego, US
• Jia Kang · Wukehudong, CN
• Yueyang Dong · Wukehudong, CN
• Ran Liu · Nanhu, CN
• Yiren Hao · Wukehudong, CN

Key dates

• Filing date: May 5, 2022
• Grant date: Aug 26, 2025
• Expiry date: Nov 4, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22B9/14
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for enriching niobium and titanium in a mineral containing iron, niobium, and titanium, includes: reacting raw materials comprising 1 part by weight of a mineral containing iron, niobium, and titanium, 0.1-0.8 part by weight of a nickel-containing substance and 0.2-1 part by weight of carbon at 800-1500° C. to obtain a nickel-iron alloy and a niobium-titanium rich slag, where an amount of the mineral containing iron, niobium, and titanium is counted in terms of iron element, and an amount of the nickel-containing substance is counted in terms of nickel element. The nickel-containing substance is one or more selected from the group consisting of oxides of nickel and nickel minerals.