JPS57145186A - Preparation of pulverized coal-water slurry for deashing - Google Patents
Preparation of pulverized coal-water slurry for deashingInfo
- Publication number
- JPS57145186A JPS57145186A JP2988081A JP2988081A JPS57145186A JP S57145186 A JPS57145186 A JP S57145186A JP 2988081 A JP2988081 A JP 2988081A JP 2988081 A JP2988081 A JP 2988081A JP S57145186 A JPS57145186 A JP S57145186A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- slurry
- deashing
- pulverized coal
- rate
- 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
Abstract
PURPOSE: To obtain a pulverized coal slurry capable of being deashed at a high deashing rate and at a high recovery rate, by varying the time of agitation of the pulverized coal with water depending on the type of the coal and conc. of the slurry.
CONSTITUTION: In preparing a slurry from a pulverized coal of ash content ≥10% and water, 20wt% or less, based on the slurry, coal is used and agitated for a period of time varying 10W30min depending on the ash content of the coal and conc. of the slurry. Deashing rate has been hitherto low because a hydrophilic ash isolated by the pulverization of the coal is not sufficiently dispersed in the water phase because the max. agitation time is about 5min independently of the conc. of the slurry or the type of the coal. It is possible to improve such defect and to effect deashing at a high deashing rate and at a high recovery rate.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2988081A JPS57145186A (en) | 1981-03-04 | 1981-03-04 | Preparation of pulverized coal-water slurry for deashing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2988081A JPS57145186A (en) | 1981-03-04 | 1981-03-04 | Preparation of pulverized coal-water slurry for deashing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57145186A true JPS57145186A (en) | 1982-09-08 |
Family
ID=12288285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2988081A Pending JPS57145186A (en) | 1981-03-04 | 1981-03-04 | Preparation of pulverized coal-water slurry for deashing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57145186A (en) |
-
1981
- 1981-03-04 JP JP2988081A patent/JPS57145186A/en active Pending
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