JPS56122892A - Additive for deashing and granuration - Google Patents
Additive for deashing and granurationInfo
- Publication number
- JPS56122892A JPS56122892A JP2772580A JP2772580A JPS56122892A JP S56122892 A JPS56122892 A JP S56122892A JP 2772580 A JP2772580 A JP 2772580A JP 2772580 A JP2772580 A JP 2772580A JP S56122892 A JPS56122892 A JP S56122892A
- Authority
- JP
- Japan
- Prior art keywords
- surfactant
- granulation
- additive
- slurry
- reduced
- 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
Abstract
PURPOSE: To provide an additive which can sufficiently remove ash and makes the removal of water on granules easy when said additive is added to an aq. slurry in wet-process granulation of fine coal powder, consisting of a nonionic alkylolamide surfactant or said surfactant and another surfactant.
CONSTITUTION: In a wet-process granulation of fine coal powder, an alkylolamide surfactant of the formula (wherein R is 5W24C acyl residue; A is 2W4C alkylene; R' is (AO)nH, hydrocarbon group; m is an integer of not less than 1, n is o or an integer of not less than 1, m+n=1W100) or said alkylolamide surfactant and another nonionic surfactand and/or an anionic surfactant is/are incorporated into an aq. slurry. Then an oil is added to the slurry. Ash can sufficiently be removed, and at the same time, the amount of the oil and granulation energy can be reduced, and thus, the cost of granulation is reduced. The adhesive moisture on granules is lowered, and hence the cost for dehydration is reduced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2772580A JPS56122892A (en) | 1980-03-04 | 1980-03-04 | Additive for deashing and granuration |
US06/169,807 US4331447A (en) | 1980-03-04 | 1980-07-17 | Coal treatment for ash removal and agglomeration |
ZA00810464A ZA81464B (en) | 1980-03-04 | 1981-01-22 | 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 |
---|---|---|---|
JP2772580A JPS56122892A (en) | 1980-03-04 | 1980-03-04 | Additive for deashing and granuration |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56122892A true JPS56122892A (en) | 1981-09-26 |
JPS5739678B2 JPS5739678B2 (en) | 1982-08-23 |
Family
ID=12228986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2772580A Granted JPS56122892A (en) | 1980-03-04 | 1980-03-04 | Additive for deashing and granuration |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS56122892A (en) |
ZA (1) | ZA81464B (en) |
Cited By (5)
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 |
JPS56149495A (en) * | 1980-04-21 | 1981-11-19 | Kao Corp | Granulating agent for water slurry of coal powder |
JPS5871994A (en) * | 1981-10-22 | 1983-04-28 | Neos Co Ltd | Dehydrating agent for coal slurry |
JPS61215698A (en) * | 1986-03-20 | 1986-09-25 | Neos Co Ltd | Additive for water-slurried coal |
CN113492054A (en) * | 2021-07-22 | 2021-10-12 | 山西华阳集团新能股份有限公司 | Method for refining ultra-low ash anthracite |
-
1980
- 1980-03-04 JP JP2772580A patent/JPS56122892A/en active Granted
-
1981
- 1981-01-22 ZA ZA00810464A patent/ZA81464B/en unknown
Cited By (8)
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 |
JPS5761795B2 (en) * | 1980-03-05 | 1982-12-25 | Sanyo Kasei Kogyo Kk | |
JPS56149495A (en) * | 1980-04-21 | 1981-11-19 | Kao Corp | Granulating agent for water slurry of coal powder |
JPS5871994A (en) * | 1981-10-22 | 1983-04-28 | Neos Co Ltd | Dehydrating agent for coal slurry |
JPH0139480B2 (en) * | 1981-10-22 | 1989-08-21 | Neos Kk | |
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 | |
CN113492054A (en) * | 2021-07-22 | 2021-10-12 | 山西华阳集团新能股份有限公司 | Method for refining ultra-low ash anthracite |
Also Published As
Publication number | Publication date |
---|---|
JPS5739678B2 (en) | 1982-08-23 |
ZA81464B (en) | 1982-02-24 |
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