JPS57137387A - Additive for granulation and deashing - Google Patents
Additive for granulation and deashingInfo
- Publication number
- JPS57137387A JPS57137387A JP2357281A JP2357281A JPS57137387A JP S57137387 A JPS57137387 A JP S57137387A JP 2357281 A JP2357281 A JP 2357281A JP 2357281 A JP2357281 A JP 2357281A JP S57137387 A JPS57137387 A JP S57137387A
- Authority
- JP
- Japan
- Prior art keywords
- deashing
- additive
- granulation
- amide compound
- acyl group
- 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
- Glanulating (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
PURPOSE: An additive for granulation and deashing of an aqueus slurry of finely pulverized coal with an oil, containing a specific amide compound, etc., and capable of reducing the deashing cost.
CONSTITUTION: An additive containing (A) an amide compound of formulaI(R1 is carboxylic acid residue; R2 is hydrocarbon group or formula II; R4 is residue of a polyamine; X1 and X2 are H or acyl group; R3 is H, hydrocarbon or acyl group; at least one of R1, R2 and R3 is ≥5C; m1 is an integer ≥1), e.g. a monoamide, and if necessary (B) a surfactant, preferably an alkylolamide nonionic surfactant, and/or an inorganic electrolyte, preferably an alkali metallic salt. The amount of the component (A) is 1ppmW5wt%.
EFFECT: Reduced adhesive moisture in granulated materials and dehydration cost.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2357281A JPS57137387A (en) | 1981-02-18 | 1981-02-18 | Additive for granulation and deashing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2357281A JPS57137387A (en) | 1981-02-18 | 1981-02-18 | Additive for granulation and deashing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57137387A true JPS57137387A (en) | 1982-08-24 |
Family
ID=12114249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2357281A Pending JPS57137387A (en) | 1981-02-18 | 1981-02-18 | Additive for granulation and deashing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57137387A (en) |
-
1981
- 1981-02-18 JP JP2357281A patent/JPS57137387A/en active Pending
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