Title:
TITANIUM DIOXIDE SCOURING MEDIA AND METHOD OF PRODUCTION
Document Type and Number:
WIPO Patent Application WO/2005/108035
Kind Code:
A2
Abstract:
Round and spherical titanium dioxide scouring media and a method for producing
the media are disclosed. The scouring media is effective in removing titanium
dioxide buildup on the walls of a titanium dioxide reaction vessel. The method
consists of forming green titanium dioxide pellets in a high intensity mixer
by mixing commercially available titanium dioxide dust, water and a surfactant.
The high intensity mixer produces substantially round, and spherical green
pellets which are subsequently sized and sintered in a kiln to form round and spherical
titanium dioxide sintered pellets that are suitable as a scouring media. The
high intensity mixer allows the operator to closely control the size and shape
of the pellets during the forming process to produce substantially round and
spherical green pellets. Because the sintered titanium dioxide pellets are
substantially round and spherical in shape, they are much less abrasive to the
walls of the reaction vessel. Furthermore, as the pellets themselves abrade
away, they do not contaminate the titanium dioxide product, and they can even
be reprocessed into round and spherical scouring media.
Inventors:
KRAUSE CLAUDE A (US)
WOOLFOLK WILLIAM SCOTT (US)
WOOLFOLK WILLIAM SCOTT (US)
Application Number:
PCT/US2005/015005
Publication Date:
November 17, 2005
Filing Date:
April 29, 2005
Export Citation:
Assignee:
CARBO CERAMICS INC (US)
KRAUSE CLAUDE A (US)
WOOLFOLK WILLIAM SCOTT (US)
KRAUSE CLAUDE A (US)
WOOLFOLK WILLIAM SCOTT (US)
International Classes:
B28B3/00; C01G23/047; C09C1/36; (IPC1-7): B28B3/00
Foreign References:
| US4166147A | 1979-08-28 |
Attorney, Agent or Firm:
FERGUSON, Priscilla L. (Suite 3100Dallas, TX, US)
Download PDF: