Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1996-07-25
1998-11-24
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106437, 423613, C09C 136
Patent
active
058401121
ABSTRACT:
A process for reacting titanium tetrachloride vapors with oxygen including a first oxygen preheat assembly for preheating oxygen to a first predetermined temperature and a titanium tetrachloride preheat assembly for preheating titanium tetrachloride to a relatively low, temperature. The process includes adding a second oxygen preheat assembly for preheating oxygen to a second temperature substantially below the first temperature, and includes a second reaction zone adapted for receiving the mixture from the first reaction zone, the oxygen at the second temperature being reacted with the titanium tetrachloride in the mixture from the first reaction zone to produce titanium dioxide. Also provided is a process for the preparation of titanium dioxide comprising reacting titanium tetrachloride with oxygen at an elevated pressure and at a temperature above about 1750.degree. F. wherein oxygen is introduced into the reactor in at least two points, the titanium tetrachloride introduced being previously admixed with aluminum chloride and has been heated to a temperature of less than about 450.degree. F. by utilizing the heat of reaction of aluminum and chlorine.
REFERENCES:
patent: 2437171 (1948-03-01), Pechukas
patent: 3340008 (1967-09-01), Nelson
patent: 3449076 (1969-06-01), Monroe
patent: 3486913 (1969-12-01), Zirngibl
patent: 3512219 (1970-05-01), Stern et al.
patent: 3615202 (1971-10-01), Stern et al.
patent: 3647377 (1972-03-01), Hilgers et al.
patent: 3661522 (1972-05-01), Colombo et al.
patent: 4013782 (1977-03-01), Powell et al.
patent: 4214913 (1980-07-01), Glaeser
patent: 4803056 (1989-02-01), Morris et al.
patent: 5196181 (1993-03-01), Hartmenn
patent: 5204083 (1993-04-01), Magyar et al.
patent: 5372639 (1994-12-01), Gonzalez et al.
patent: 5599519 (1997-02-01), Haddow
Magyar J. C.
Morris A. J.
Wootten G. D.
Yuill W. A.
Bell Mark L.
Hanegan Herbert M.
Hertzog Scott L.
Kerr McGee Chemical Corporation
Lunsford III J. Rodgers
LandOfFree
Method and apparatus for producing titanium dioxide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for producing titanium dioxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for producing titanium dioxide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1698209