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:
Feb. 07, 1989
Filed:
Jul. 31, 1985
Alan J Morris, Oklahoma City, OK (US);
Merlin D Coe, Oklahoma City, OK (US);
Kerr-McGee Chemical Corporation, Oklahoma City, OK (US);
Abstract
A system for increasing the capacity of a process for producing titanium dioxide by reacting titanium tetrachloride vapors with oxygen wherein the process includes an oxygen preheat assembly for preheating oxygen to a predetermined temperature level and a first titanium tetrachloride preheat assembly for preheating titanium tetrachloride to a first, relatively high, temperature level, a portion of the oxygen and the titanium tetrachloride vapors at the first temperature level being reacted in a first reaction zone to produce a mixture of titanium dioxide reaction product, oxygen and unreacted titanium tetrachloride vapors at the first temperature level. The system comprises adding a second titanium tetrachloride preheat assembly for preheating titanium tetrachloride to a second temperature level, substantially below the first temperature level, and adding a second reaction zone adapted for receiving the mixture from the first reaction zone, the titanium tetrachloride vapors at the first temperature level in said mixture and the titanium tetrachloride vapors at the second temperature level being reacted with the oxygen in the mixture from the first reaction zone to produce titanium dioxide. The present invention also contemplates an improved reactor for use in the system for increasing the capacity of the titanium dioxide producing process.