Invention Grant
- Patent Title: Process of purification of minerals based on calcium carbonate by flotation in the presence of quaternary imidazolium methosulfate
- Patent Title (中): 在季铵盐甲硫酸盐存在下通过浮选净化基于碳酸钙的矿物质的方法
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Application No.: US12448700Application Date: 2008-01-11
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Publication No.: US08381915B2Publication Date: 2013-02-26
- Inventor: Bahman Tavakkoli , Thomas Mangelberger , Jörg Maier , Matthias Buri
- Applicant: Bahman Tavakkoli , Thomas Mangelberger , Jörg Maier , Matthias Buri
- Applicant Address: CH Oftringen
- Assignee: Omya Development AG
- Current Assignee: Omya Development AG
- Current Assignee Address: CH Oftringen
- Agency: Amster, Rothstein & Ebenstein LLP
- Priority: EP07000640 20070112
- International Application: PCT/IB2008/000062 WO 20080111
- International Announcement: WO2008/084391 WO 20080717
- Main IPC: B03D1/01
- IPC: B03D1/01 ; B03D1/012 ; B03D1/02
Abstract:
The invention concerns a process for purification of calcium carbonate-comprising minerals comprising at least one flotation step, characterized in that this step implements at least one quaternary imidazoline methosulfate compound as collector agent.
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