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.:

US 6969500 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 29, 2005

Filed:

Feb. 28, 2003
Applicants:

Hans-joerg Bonath, Oberkirch, DE;

Michael Ebert, Cologne, DE;

Andreas Kade, Kuerten, DE;

Frank Malcharek, Cologne, DE;

Josef Mayer, Cologne, DE;

Dirk Wolff, Hennef, DE;

Inventors:

Hans-Joerg Bonath, Oberkirch, DE;

Michael Ebert, Cologne, DE;

Andreas Kade, Kuerten, DE;

Frank Malcharek, Cologne, DE;

Josef Mayer, Cologne, DE;

Dirk Wolff, Hennef, DE;

Assignee:

Kronos International Inc, Leverkusen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D053/77 ;
U.S. Cl.
CPC ...
Abstract

The invention relates to a method for separating titanium tetrachloride and the hydrolyzed reaction products of titanium tetrachloride from the exhaust gases generated during the chlorination of raw materials containing titanium by treating the exhaust gases with a first aqueous hydrochloric-acid solution of titanium oxychloride, where, in the first separation stage (), small droplets of hydrochloric-acid titanium oxychloride solution () are flowed with the exhaust gas flow, and larger droplets of hydrochloric-acid titanium oxychloride solution are flowed counter current to the exhaust to remove the smaller droplets and ensure that virtually no droplets are carried to a second separation stage. In the second separation stage, a second titanium oxychloride solution is injected into a second reactor (), the second solution having a lower titanium oxychloride concentration than that injected in the first separation stage. The method results in a lower pressure loss in the scrubber system, while retaining the same separation efficiency.


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Bonath, Hans-Joerg. (2005). Method for separating titanium tetrachloride (U.S. Patent No. 6969500). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6969500

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