The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2002
Filed:
Feb. 14, 2000
James Clark Deberry, Arnold, MD (US);
Michael Robinson, Burgh on Bain, GB;
Mark Douglas Pomponi, Ellicott City, MD (US);
Anthony J. Beach, Grimsby, GB;
Yun Xiong, Ellicott City, MD (US);
Kamal Akhtar, Ellicott City, MD (US);
Millennium Inorganic Chemicals, Inc., Hunt Valley, MD (US);
Abstract
A process for controlling the formation of TiO particles in a multi-stage vapor-phase oxidation reactor wherein the process includes the steps of limiting the fraction of TiCl converted into TiO in the reaction stream of a first or intermediate stage of the reactor under conditions that control the mean residence time distribution of the reacting mass. By running the reaction in this manner, the growth of TiO particles produced is so controlled that after subsequent standard finishing steps (e.g. milling) the fraction of particles having an average size of less than 0.5 &mgr;m is reduced or minimized.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile