Invention Grant
- Patent Title: TiO2 based scrubbing granules, and methods of making and using such TiO2 based scrubbing granules
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Application No.: US14395560Application Date: 2013-04-26
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Publication No.: US09708195B2Publication Date: 2017-07-18
- Inventor: Venkata Ramana Reddy Sama , Kit Stacey Eremchuk , Mark D. Pomponi , Gabor Feher , Alexandre Jean Fines
- Applicant: CRISTAL USA, INC.
- Applicant Address: US MD Glen Burnie
- Assignee: Cristal USA, Inc.
- Current Assignee: Cristal USA, Inc.
- Current Assignee Address: US MD Glen Burnie
- Agent Howard C. Lee
- International Application: PCT/US2013/038386 WO 20130426
- International Announcement: WO2013/163529 WO 20131031
- Main IPC: B24D3/00
- IPC: B24D3/00 ; B24D3/02 ; B24D11/00 ; B24D18/00 ; C09K3/14 ; C01G23/07 ; C09C1/36 ; C01G23/047

Abstract:
TiO2 based scrubbing granules, and methods of making and using such TiO2 based scrubbing granules are described. TiO2-based scrubbing granules include granulated TiO2 and about 0.5% to about 20% dry weight inorganic salt binder. Other TiO2 based scrubbing granules include unsintered granulated TiO2 and about 0.5% to about 20% dry weight inorganic salt binder. Inorganic salt binder include sodium aluminate. Methods of making TiO2 based scrubbing granules include i) combining TiO2 particles with inorganic salt binder to form TiO2-binder mixture comprising from about 0.5% to about 20% dry weight binder; ii) granulating the TiO2-binder mixture; and drying the granulated TiO2-binder mixture to form TiO2-based scrubbing granules. Methods of using such TiO2-based scrubbing granules include introducing TiO2-based scrubbing granules to remove adherent deposits on an inner surface of a reactor or heat exchanger during processes of forming TiO2 particles and finishing the formed TiO2 particles into finished pigment products.
Public/Granted literature
- US20150078985A1 TiO2 BASED SCRUBBING GRANULES, AND METHODS OF MAKING AND USING SUCH TiO2 BASED SCRUBBING GRANULES Public/Granted day:2015-03-19
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