发明名称 |
PROCESS FOR CONTROLLING PARTICLE SIZE AND SILICA COVERAGE IN THE PREPARATION OF TITANIUM DIOXIDE |
摘要 |
The present disclosure relates to a vapor phase process for producing a substantially anatase-free titanium dioxide pigment comprising reacting a vaporous titanium dioxide precursor and an oxygen containing gas in a reactor; and introducing a mixture of liquid silicon halide and liquid titanium dioxide precursor into the reactor at a point downstream of the addition of the vaporous titanium dioxide precursor, and the oxygen containing gas, and at a process temperature of about 1200° C. to about 1600° C. to produce titanium dioxide particles that are substantially encapsulated in silicon dioxide.
|
申请公布号 |
US2013276671(A1) |
申请公布日期 |
2013.10.24 |
申请号 |
US201213978271 |
申请日期 |
2012.01.06 |
申请人 |
MUSICK CHARLES DAVID;JOHNS ROBERT A.;ZAHER JOSEPH J.;E I DU PONT DE NEMOURS AND COMPANY |
发明人 |
MUSICK CHARLES DAVID;JOHNS ROBERT A.;ZAHER JOSEPH J. |
分类号 |
C08K3/22 |
主分类号 |
C08K3/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|