Invention Grant
- Patent Title: Methods for purifying kaolin clays using reverse flotation, high brightness kaolin products, and uses thereof
- Patent Title (中): 使用反浮选，高亮度高岭土产品纯化高岭土的方法及其用途
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Application No.: US12920476Application Date: 2009-03-06
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Publication No.: US08501030B2Publication Date: 2013-08-06
- Inventor: Ismail Yildirim , Mikel Dean Smith , Robert Pruett
- Applicant: Ismail Yildirim , Mikel Dean Smith , Robert Pruett
- Applicant Address: US GA Roswell
- Assignee: Imerys Pigments, Inc.
- Current Assignee: Imerys Pigments, Inc.
- Current Assignee Address: US GA Roswell
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- International Application: PCT/US2009/036285 WO 20090306
- International Announcement: WO2009/114404 WO 20090917
- Main IPC: B03D1/02
- IPC: B03D1/02 ; C09C1/42
Abstract:
Disclosed herein are methods for removing discoloring impurities, such as carbon impurities, particularly graphite, from kaolin clay to enhance the brightness of the kaolin clays. The methods include reverse flotation processes. Also disclosed herein are high brightness kaolin products, and the uses thereof.
Public/Granted literature
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