(19) |
 |
|
(11) |
EP 0 231 097 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
|
16.03.1988 Bulletin 1988/11 |
(43) |
Date of publication A2: |
|
05.08.1987 Bulletin 1987/32 |
(22) |
Date of filing: 21.01.1987 |
|
|
(84) |
Designated Contracting States: |
|
BE DE ES FR NL |
(30) |
Priority: |
23.01.1986 GB 8601670
|
(71) |
Applicant: MAXIHEAT( ANTHRACITE BRIQUETTES LIMITED) |
|
() |
|
(72) |
Inventors: |
|
- Yemm, Owen Glyndwr
()
- Yemm, Albert John
()
|
|
|
|
(54) |
Improvements relating to solid fuel briquettes |
(57) A solid fuel briquette is constructed from a mixture of anthracite duff and petroleum
coke held together by bitumen or some other hydrocarbon based binder, the mixture
having been pressed to form the solid fuel briquette. The final product can incorporate
the constituents in the ratios of 10% to 60% of petroleum coke, 1% to 10% of the binder,
with the balance being anthracite duff, all proportions being by weight. A preferred
non-smokeless fuel briquette is formed from about 25% petroleum coke, 7% bitumen binder
and 68% anthracite duff, by weight. A smokeless fuel briquette may be formed from
about 25% petroleum coke, 5% bitumen binder and 70% anthracite duff, subsequently
oxidised to reduce the binder content to about 1%.