Invention Grant
- Patent Title: Conditioner for flotation of coal
- Patent Title (中): 用于浮选煤的调节剂
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Application No.: US311380Application Date: 1981-10-14
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Publication No.: US4474619APublication Date: 1984-10-02
- Inventor: Wilfred C. Meyer , Robert D. Hansen , Robert E. Hefner, Jr.
- Applicant: Wilfred C. Meyer , Robert D. Hansen , Robert E. Hefner, Jr.
- Applicant Address: MI Midland
- Assignee: The Dow Chemical Company
- Current Assignee: The Dow Chemical Company
- Current Assignee Address: MI Midland
- Main IPC: B03D1/01
- IPC: B03D1/01 ; B03D1/14
Abstract:
The froth flotation of coal in the presence of a condensate of an alkanolamine with at least about 0.8 equivalent of a fatty acid improves the separation of carbonaceous solids possessing relatively high heat value from ash and other inert mineral matter. Flotation in the presence of this condensate is particularly effective to enhance the recovery of oxidized bituminous coal.
Public/Granted literature
- US4873547A Sheet conveying apparatus Public/Granted day:1989-10-10
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