发明名称 |
Methods for reducing impurities in magnesium, purified magnesium, and zirconium metal production |
摘要 |
A method for reducing impurities in magnesium comprises: combining a zirconium-containing material with a molten low-impurity magnesium including no more than 1.0 weight percent of total impurities in a vessel to provide a mixture; holding the mixture in a molten state for a period of time sufficient to allow at least a portion of the zirconium-containing material to react with at least a portion of the impurities and form intermetallic compounds; and separating at least a portion of the molten magnesium in the mixture from at least a portion of the intermetallic compounds to provide a purified magnesium including greater than 1000 ppm zirconium. A purified magnesium including at least 1000 ppm zirconium and methods for producing zirconium metal using magnesium reductant also are disclosed. |
申请公布号 |
US9090953(B2) |
申请公布日期 |
2015.07.28 |
申请号 |
US201213585094 |
申请日期 |
2012.08.14 |
申请人 |
ATI Properties, Inc. |
发明人 |
Coffin Scott;Fajardo Arnel M. |
分类号 |
C22B26/22;C22B9/10;C22B34/14;C22C23/00 |
主分类号 |
C22B26/22 |
代理机构 |
K & L Gates LLP |
代理人 |
K & L Gates LLP ;Grosselin, III John E. |
主权项 |
1. A method for reducing impurities in magnesium, the method comprising:
combining a zirconium-containing material with a molten low-impurity magnesium including no more than 1.0 weight percent of total impurities in a vessel to provide a mixture; holding the mixture in a molten state for a period of time sufficient to allow at least a portion of the zirconium-containing material to react with at least a portion of the impurities and form intermetallic compounds; and separating at least a portion of the molten magnesium in the mixture from at least a portion of the intermetallic compounds to provide a purified magnesium, wherein the purified magnesium includes an increased level of zirconium compared to the low-impurity magnesium, wherein the level of zirconium in the purified magnesium is greater than 1000 ppm zirconium, and wherein the purified magnesium includes a reduced level of impurities other than zirconium compared to the low-impurity magnesium. |
地址 |
Albany OR US |