发明授权
US4673133A Process for beneficiating oil shale using froth flotation and selective
flocculation
失效
使用泡沫浮选和选择性絮凝法选择油页岩的方法
- 专利标题： Process for beneficiating oil shale using froth flotation and selective flocculation
- 专利标题（中）： 使用泡沫浮选和选择性絮凝法选择油页岩的方法
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申请号： US768979申请日： 1985-08-22
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公开(公告)号： US4673133A公开(公告)日： 1987-06-16
- 发明人: Rabinder S. Datta , Frank F. Aplan , Charles Zebula
- 申请人： Rabinder S. Datta , Frank F. Aplan , Charles Zebula
- 申请人地址： CA San Francisco
- 专利权人： Chevron Research Company
- 当前专利权人： Chevron Research Company
- 当前专利权人地址： CA San Francisco
- 主分类号： B03B9/02
- IPC分类号： B03B9/02 ; B03D1/02 ; B03D3/06 ; C10G1/00 ; B02C19/12
摘要：
A process for beneficiating oil shale is disclosed including the steps of grinding the shale to fine particles in an aqueous medium, portions of which are kerogen-rich and kerogen-poor, scrubbing the particles, separating the particles by either selectively flocculating out a fraction, redispersing the fraction and reseparating using froth flotation, or vice versa, and oil agglomerating/dewatering the kerogen-rich fraction.
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