发明名称 |
PROCESS FOR IN-SITU FORMATION OF CHLORIDES OF SILICON AND ALUMINUM IN THE PREPARATION OF TITANIUM DIOXIDE |
摘要 |
<p>This disclosure relates to a process for producing titanium dioxide, comprising: a) reacting a alloy comprising silicon and aluminum having a melting point of about 482° C. to about 660° C., with chlorine gas at temperatures above 190° C. to form chlorides of silicon and aluminum; b) adding titanium tetrachloride to the chlorides of silicon and aluminum of step (a); c) oxidizing the chlorides of silicon and aluminum and titanium tetrachloride of step (b); and d) forming titanium dioxide.</p> |
申请公布号 |
EP2509920(A1) |
申请公布日期 |
2012.10.17 |
申请号 |
EP20100776918 |
申请日期 |
2010.11.09 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MUSICK, CHARLES, DAVID;KLEIN, KENNETH PAUL |
分类号 |
C01G23/07;C01B33/107;C01F7/56;C09C1/36 |
主分类号 |
C01G23/07 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|