JPS5672083A - Water separation of coal-water slurry - Google Patents
Water separation of coal-water slurryInfo
- Publication number
- JPS5672083A JPS5672083A JP14799879A JP14799879A JPS5672083A JP S5672083 A JPS5672083 A JP S5672083A JP 14799879 A JP14799879 A JP 14799879A JP 14799879 A JP14799879 A JP 14799879A JP S5672083 A JPS5672083 A JP S5672083A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- water
- coal powder
- water slurry
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
- Filtration Of Liquid (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
PURPOSE: To separate water efficiently from a coal-water slurry, by washing a coal powder, separated by adding an anionic surface active agent to a coal-water slurry, with a hydrocarbon oil.
CONSTITUTION: To a coal-water slurry containing a coal powder with a particle size of 5mm or less in an amount of 80wt% or less, an anionic surface active agent (e.g.: a fatty acid soap or a salt of an alkyl sulfate) is added in an amount of 10W 3,000ppm, pref., 100W1,000ppm against a coal (dry basis) to allow said coal powder to be easily precipitated and, thereafter, the coal powder and water are separated by filtering or centrifugal separation. Subsequently, the coal powder is washed by using a hydrocarbon (e.g.: kerosine or light oil) in an amount of 0.1W5wt. times, pref., 0.3W2wt. times against the coal (dry basis).
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14799879A JPS5672083A (en) | 1979-11-15 | 1979-11-15 | Water separation of coal-water slurry |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14799879A JPS5672083A (en) | 1979-11-15 | 1979-11-15 | Water separation of coal-water slurry |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5672083A true JPS5672083A (en) | 1981-06-16 |
Family
ID=15442819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14799879A Pending JPS5672083A (en) | 1979-11-15 | 1979-11-15 | Water separation of coal-water slurry |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5672083A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5958092A (en) * | 1982-09-29 | 1984-04-03 | Babcock Hitachi Kk | Preparation of coal slurry |
WO1992020421A1 (en) * | 1990-05-08 | 1992-11-26 | Unichema Chemie Bv | Coal dewatering |
CN104073319A (en) * | 2014-07-11 | 2014-10-01 | 郑翔书 | Lignite dehydration additive and lignite dehydration treatment method |
-
1979
- 1979-11-15 JP JP14799879A patent/JPS5672083A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5958092A (en) * | 1982-09-29 | 1984-04-03 | Babcock Hitachi Kk | Preparation of coal slurry |
WO1992020421A1 (en) * | 1990-05-08 | 1992-11-26 | Unichema Chemie Bv | Coal dewatering |
US5346630A (en) * | 1990-05-08 | 1994-09-13 | Unilever Patent Holdings B.V. | Coal dewatering |
CN104073319A (en) * | 2014-07-11 | 2014-10-01 | 郑翔书 | Lignite dehydration additive and lignite dehydration treatment method |
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