Invention Grant
- Patent Title: Process to disperse and / or grind and / or concentrate calcium carbonate in aqueous media using an aqueous solution containing zirconium compounds
- Patent Title (中): 使用含锆化合物的水溶液将碳酸钙分散和/或研磨和/或浓缩在水介质中的方法
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Application No.: US13066375Application Date: 2011-04-13
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Publication No.: US09574088B2Publication Date: 2017-02-21
- Inventor: Mathias Buri , Joachim Schoelkopf , Michael Kaessberger
- Applicant: Mathias Buri , Joachim Schoelkopf , Michael Kaessberger
- Applicant Address: CH Oftringen
- Assignee: Omya International AG
- Current Assignee: Omya International AG
- Current Assignee Address: CH Oftringen
- Agency: Amster, Rothstein & Ebenstein LLP
- Priority: EP05076705 20050725
- Main IPC: C08K3/00
- IPC: C08K3/00 ; C09C3/04 ; C09C1/02
Abstract:
The present invention is directed to an aqueous suspension and/or aqueous dispersion of calcium carbonate obtained by the process of manufacturing a calcium carbonate-containing slurry prepared by addition of one or more zirconium compounds, wherein the aqueous suspension and/or aqueous dispersion of calcium carbonate consists essentially of calcium carbonate, water, one or more zirconium compounds and optionally, one or more phosphate-free additives acting as dispersion and/or grinding aid agents.
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