| (19) |
 |
|
(11) |
EP 0 077 909 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
20.07.1983 Bulletin 1983/29 |
| (43) |
Date of publication A2: |
|
04.05.1983 Bulletin 1983/18 |
| (22) |
Date of filing: 13.09.1982 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB IT SE |
| (30) |
Priority: |
14.09.1981 JP 14519981
08.01.1982 JP 212882
|
| (71) |
Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD. |
|
() |
|
| (72) |
Inventors: |
|
- Naka, Akihiro
()
- Honjo, Shuichi
()
- Mayuzumi, Tominobu
()
- Tanakamaru, Yasuharu
()
- Nishida, Yoshihisa
()
|
|
| |
|
| (54) |
High consistency-aqueous slurry of powdered coal |
(57) There is provided a high consistency-aqueous slurry of powdered coal capable of conveying
by a hydraulic pump and combusting as such comprising at least 60% by weight of powdered
coal, water and, as a viscosity lowering agent, a polyether compound or a derivative
thereof containing at least 10% by weight of oxyethylene units based on the polyoxyalkylene
chain thereof.