Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Reexamination Certificate
2007-05-15
2007-05-15
Vanoy, Timothy C. (Department: 1754)
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
C423S611000, C423S612000, C423S613000, C423SDIG010, C204S164000, C977S773000, C977S775000, C977S777000, C977S811000
Reexamination Certificate
active
10933557
ABSTRACT:
The present invention is a method of increasing particle surface area and decreasing the concentration of over-sized particles in a process for making metal oxide particles, particularly nanoparticle TiO2, in an inlet-fed, plug flow, plasma reactor by vapor phase reaction of titanium tetrachloride and oxygen in the presence of a source of hydrogen to form titanium dioxide particles.
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E. I. du Pont de Nemours and Company
Vanoy Timothy C.
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