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:
Apr. 13, 1976
Filed:
Mar. 13, 1974
Seitaro Fukushima, Omiya, JA;
Mitsubishi Kinzoku Kabushiki Kaisha, Tokyo, JA;
Abstract
Artificial rutile of high TiO.sub.2 grade is produced by chlorine treatment of titaniferous ore such as ilmenite which comprises a combination of (1) a pretreatment step in which the ore is oxidized by roasting at a temperature below the sintering temperature thereof thereby to activate the ore, (2) a chloridization step in which the pretreated ore is subjected to a chlorine treatment in a fluidized bed chloridization furnace thereby to chloridize and remove selectively iron oxides within the ore without the formation of TiCl.sub.4, and (3) an aftertreatment step which comprises subjecting the ore to magnetic separation with a magnetic field of at least 20,000 gauses and further treatments thereafter, as necessary, such as a wet table treatment and electrostatic separation at from 5,000 to 30,000 volts.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile