JPS56125491A - Method of deliming and granulation for coal slurry - Google Patents
Method of deliming and granulation for coal slurryInfo
- Publication number
- JPS56125491A JPS56125491A JP2894880A JP2894880A JPS56125491A JP S56125491 A JPS56125491 A JP S56125491A JP 2894880 A JP2894880 A JP 2894880A JP 2894880 A JP2894880 A JP 2894880A JP S56125491 A JPS56125491 A JP S56125491A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- slurry
- surfactant
- added
- deliming
- 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.)
- Granted
Links
Landscapes
- Glanulating (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
PURPOSE: To delime coal with good workability at lower cost, by a method in which an oil is added to an aqueous slurry of pulverized coal to which is added a surfactant and the slurry is stirred.
CONSTITUTION: To an aqueous slurry of pulverized coal of approx. 50% or less concentrations is added 10W2,000ppm (based on coal amount) surfactant (e.g., a nonionic surfactant and/or an anionic surfactant), together with, if necessary, 5% or less (based on the aqueous slurry) inorganic electrolyte (e.g., Na2HPO4), and then the equeous slurry is further mixed with 2W30% (based on coal amount) oil (e.g., an organic liquid immiscible with water, such as hydrocarbon oils) and stirred at a revolving speed of approx. 300W1,500rpm for deliming and granulation. Then, the granular coal obtained of a grain size of 0.2W5mm is screened and the slurry containing ungranulated coal and lime is separated for removal to obtain delimed coal granules.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55028948A JPS585232B2 (en) | 1980-03-06 | 1980-03-06 | Deashing and powdering method |
US06/169,807 US4331447A (en) | 1980-03-04 | 1980-07-17 | Coal treatment for ash removal and agglomeration |
CA000369493A CA1157794A (en) | 1980-03-04 | 1981-01-28 | Coal treatment for ash removal and agglomeration |
AU67442/81A AU526115B2 (en) | 1980-03-04 | 1981-02-19 | Removal of ash from and agglomeration of coals using a surfactant and an oil fraction binder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55028948A JPS585232B2 (en) | 1980-03-06 | 1980-03-06 | Deashing and powdering method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56125491A true JPS56125491A (en) | 1981-10-01 |
JPS585232B2 JPS585232B2 (en) | 1983-01-29 |
Family
ID=12262623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55028948A Expired JPS585232B2 (en) | 1980-03-04 | 1980-03-06 | Deashing and powdering method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS585232B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56149495A (en) * | 1980-04-21 | 1981-11-19 | Kao Corp | Granulating agent for water slurry of coal powder |
JPS58136698A (en) * | 1982-02-08 | 1983-08-13 | Kawasaki Heavy Ind Ltd | Preparation of highly concentrated coal slurry |
JPS59105090A (en) * | 1982-12-09 | 1984-06-18 | Ube Ind Ltd | Deashing of coal |
JPS61215698A (en) * | 1986-03-20 | 1986-09-25 | Neos Co Ltd | Additive for water-slurried coal |
JPH02169693A (en) * | 1988-12-22 | 1990-06-29 | Taiho Ind Co Ltd | Material for treatment of coking coal |
KR20180008771A (en) | 2015-06-24 | 2018-01-24 | 제이에프이 스틸 가부시키가이샤 | Ferro-coke production method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59149331U (en) * | 1983-03-26 | 1984-10-05 | 株式会社東海理化電機製作所 | switch device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56125486A (en) * | 1980-03-05 | 1981-10-01 | Sanyo Chem Ind Ltd | Additive for deliming and granulation |
-
1980
- 1980-03-06 JP JP55028948A patent/JPS585232B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56125486A (en) * | 1980-03-05 | 1981-10-01 | Sanyo Chem Ind Ltd | Additive for deliming and granulation |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56149495A (en) * | 1980-04-21 | 1981-11-19 | Kao Corp | Granulating agent for water slurry of coal powder |
JPS58136698A (en) * | 1982-02-08 | 1983-08-13 | Kawasaki Heavy Ind Ltd | Preparation of highly concentrated coal slurry |
JPS6010073B2 (en) * | 1982-02-08 | 1985-03-14 | 川崎重工業株式会社 | Method for producing highly concentrated coal slurry |
JPS59105090A (en) * | 1982-12-09 | 1984-06-18 | Ube Ind Ltd | Deashing of coal |
JPH0138436B2 (en) * | 1982-12-09 | 1989-08-14 | Ube Industries | |
JPS61215698A (en) * | 1986-03-20 | 1986-09-25 | Neos Co Ltd | Additive for water-slurried coal |
JPS6328959B2 (en) * | 1986-03-20 | 1988-06-10 | Neos Kk | |
JPH02169693A (en) * | 1988-12-22 | 1990-06-29 | Taiho Ind Co Ltd | Material for treatment of coking coal |
KR20180008771A (en) | 2015-06-24 | 2018-01-24 | 제이에프이 스틸 가부시키가이샤 | Ferro-coke production method |
US11111441B2 (en) | 2015-06-24 | 2021-09-07 | Jfe Steel Corporation | Method for producing ferrocoke |
Also Published As
Publication number | Publication date |
---|---|
JPS585232B2 (en) | 1983-01-29 |
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