一种从废旧铌钛铜超导合金材料中分离回收铌、钛和铜的方法
By employing steps such as acid immersion, hydrogen embrittlement, and potassium hydroxide roasting, niobium, titanium, and copper are efficiently separated and recovered from waste niobium-titanium-copper superconducting alloy materials. This method solves the problems of rapid equipment wear and separation difficulties in existing technologies, and yields high-grade titanium dioxide and niobium pentoxide products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
- Filing Date
- 2023-12-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient for efficiently and economically separating and recovering niobium, titanium, and copper from waste niobium-titanium-copper superconducting alloy materials. Furthermore, the high-temperature chlorination process requires sophisticated equipment with rapid wear and tear, which is not conducive to industrial production.
The process involves acid immersion to remove copper, hydrogen embrittlement treatment, potassium hydroxide roasting, water immersion separation, and acid conversion. Copper is dissolved in sulfuric acid, hydrogenation improves crushing performance, potassium hydroxide is used to convert niobium into soluble potassium polyniobate, titanium is separated by water immersion, and acid conversion yields high-grade titanium dioxide and niobium pentoxide.
This study achieved efficient resource recovery of niobium-titanium-copper superconducting alloy materials, obtaining high-grade titanium dioxide and niobium pentoxide products, improving the crushing performance of niobium-titanium alloys, and increasing the conversion rate and separation efficiency of niobium.
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Figure CN117721307B_ABST