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 ammonium 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 |
US2008159933(A1) |
申请公布日期 |
2008.07.03 |
申请号 |
US20060617258 |
申请日期 |
2006.12.28 |
申请人 |
E. I. DUPONT DE NEMOURS AND COMPANY |
发明人 |
CORBIN DAVID RICHARD;GRIFFIN THOMAS PAUL;HUTCHENSON KEITH W.;LI SHENG;SHIFLETT MARK BRANDON;TORARDI CARMINE;ZAHER JOSEPH J. |
分类号 |
C22B34/12 |
主分类号 |
C22B34/12 |
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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