Method for producing Ti or Ti alloy through reduction by Ca
US7648560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2004 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Apr 20, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B34/1295
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is a method for producing Ti or a Ti alloy through reduction of TiCl4 by Ca, which can produce the high-purity metallic Ti or high-purity Ti alloy. A molten salt containing CaCl2 and having Ca dissolved therein is held in a reactor vessel, and a metallic chloride containing TiCl4 is reacted with Ca in the molten salt to generate Ti particles or Ti alloy particles in a molten CaCl2 solution, which allows enhancement of a feed rate of TiCl4 which is of a raw material of Ti, and also allows a continuous operation. Therefore, the high-purity metallic Ti or the high-purity Ti alloy can economically be produced with high efficiency. Further, the method by the present invention eliminates the need of replenishment of expensive metallic Ca and of the operation for separately handling Ca which is highly reactive and difficult to handle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.