Invention Grant
- Patent Title: Titanium dioxide slurries concentration
- Patent Title (中): 二氧化钛浆液浓缩
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Application No.: US349214Application Date: 1994-12-05
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Publication No.: US5622628APublication Date: 1997-04-22
- Inventor: Michael J. Trendell , Kevin Drury , Stephen R. Spruce , Martin R. B. Davis , Keith Robson
- Applicant: Michael J. Trendell , Kevin Drury , Stephen R. Spruce , Martin R. B. Davis , Keith Robson
- Applicant Address: GBX
- Assignee: Tioxide Group Services Limited
- Current Assignee: Tioxide Group Services Limited
- Current Assignee Address: GBX
- Priority: GBX932051 19931207
- Main IPC: B01D61/14
- IPC: B01D61/14 ; B01D63/10 ; B01J3/00 ; C01G23/047 ; C09D17/00 ; B01D61/00
Abstract:
A novel method for the production of titanium dioxide slurries having a high solids content comprises subjecting an aqueous slurry of titanium dioxide to cross-flow filtration to produce a slurry containing at least 50%, preferably 60 to 80% titanium dioxide by weight. The slurry can be washed during filtration to reduce the concentration of soluble ions. The process can produce concentrated slurries of titanium dioxide having remarkably low viscosities.
Public/Granted literature
- US4404305A Flame retardant polyorganosiloxane resin compositions Public/Granted day:1983-09-13
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