Method for preparing rutile from acid-soluble titanium slag

US10060009B2 · kind B2 · utility

Assignee

• YUNNAN MINZU UNIVERSITY · CN

Inventors

• Guo Chen · Longchuan, CN
• Jin CHEN · Hsinchu, TW
• Jinhui Peng · Longchuan, CN
• Libo ZHANG · Katy, US
• Shenghui Guo · Kunming, CN
• Junwen Zhou · Longchuan, CN

Key dates

• Filing date: Sep 17, 2015
• Grant date: Aug 28, 2018
• Expiry date: Sep 17, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/20
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Provided is a method for preparing rutile from acid-soluble titanium slag, including: grinding acid-soluble titanium slag; adding a sodium carbonate modifier, and performing microwave irradiation treatment in a microwave device; adding an ammonium bifluoride additive; and performing acid purification and calcination to obtain rutile. By means of a microwave heating mode, the equipment investment needed by the method is low, and the energy consumption is low. The purity of artificial rutile is more than 91%, byproducts are fewer, and the environmental pollution is low.