| 发明名称 | Treatment of tantalum- and/or niobium-containing compounds | ||
| 摘要 | A process for treating a feedstock comprising tantalum- and/or niobium-containing compounds is provided. The process includes contacting the feedstock with a gaseous fluorinating agent, thereby to fluorinate tantalum and/or niobium present in the feedstock compounds. The resultant fluorinated tantalum and/or niobium compounds are recovered. | ||
| 申请公布号 | US9206056(B2) | 申请公布日期 | 2015.12.08 |
| 申请号 | US201113638713 | 申请日期 | 2011.04.01 |
| 申请人 | The South African Nuclear Energy Corporation Limited | 发明人 | Carstens Pieter Andries Blatt;Wagener Jacobus Beyers;Pienaar Andrew Dirk |
| 分类号 | C01G23/02;C01G35/02;C01G33/00;C01G35/00;C01G43/06 | 主分类号 | C01G23/02 |
| 代理机构 | McCarter & English, LLP | 代理人 | McCarter & English, LLP ;Mello Jill;Dertz Emily |
| 主权项 | 1. A process for treating a feedstock comprising tantalum-oxide and niobium-oxide, which process includes contacting the feedstock with a gaseous fluorinating agent, with the gaseous fluorinating agent reacting directly, in a fluorinating reaction, with the tantalum-oxide and niobium-oxide thereby to fluorinate the tantalum and niobium present in the oxides; wherein either one of tantalum and niobium is preferentially converted to a pentafluoride compound, while the other is converted to an oxyfluoride compound, or both tantalum and niobium are converted to oxyfluoride compounds; and recovering the resultant fluorinated tantalum and niobium compounds by means of fraction sublimation. | ||
| 地址 | Pelindaba, District Brits ZA | ||