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. 06, 2008
Filed:
Jun. 07, 2005
Xuqing Gu, Newark, DE (US);
Stephen Erwin Lyke, Wilmington, DE (US);
Steve Mirabella, New Johnsonville, TN (US);
Joseph M. Shekiro, Jr., Newark, DE (US);
Jodi Lynn Witt, New Castle, DE (US);
Xuqing Gu, Newark, DE (US);
Stephen Erwin Lyke, Wilmington, DE (US);
Steve Mirabella, New Johnsonville, TN (US);
Joseph M. Shekiro, Jr., Newark, DE (US);
Jodi Lynn Witt, New Castle, DE (US);
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
The disclosure is directed to a process for isolating solids from a purification purge stream comprising an impurity present as a solid, wherein the purification purge stream is substantially free of chlorides other than titanium tetrachloride and vanadium chloride, the process comprising the steps of: (a) atomizing the purification purge stream comprising titanium tetrachloride as a liquid and an impurity present as a solid; (b) drying solids in the atomized purification purge stream by contacting the atomized stream with a titanium tetrachloride vapor stream such that the combined streams reach a temperature of at least about 140° C. to vaporize the liquid titanium tetrachloride, wherein the titanium tetrachloride vapor is substantially free of chlorides other than those of titanium and vanadium, and substantially free of non-condensable gases comprising CO, CO, N, or mixtures thereof; and (c) separating the impurity present as a solid from the vaporized titanium tetrachloride. The separated vanadium solids may be further processed to recover valuable by products.