发明名称 |
Processes for producing titanium dioxide |
摘要 |
Provided are processes for the production of titanium dioxide from ilmenite. In these processes, ilmenite is digested with aqueous trimethylammonium hydrogen oxalate. Iron from the ilmenite precipitates as a hydrated iron oxalate and is removed by filtering, leaving a titanium-rich solution. The titanium-rich solution can be further processed to form titanium dioxide.
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申请公布号 |
US7678350(B2) |
申请公布日期 |
2010.03.16 |
申请号 |
US20080186881 |
申请日期 |
2008.08.06 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
CORBIN DAVID RICHARD;HUTCHISON SCOTT N. |
分类号 |
C01G23/047 |
主分类号 |
C01G23/047 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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