Utilization of slag from coal gasification systems

Details Utilization of slag from coal gasification systems Utilization of slag from coal gasification systems

1991-10-23

1992-11-24

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Composed of waste material

501141, 106697, 106705, 106706, 106707, 106789, 106790, C04B 3500, C04B 1806, C04B 714

Patent

active

051661098

ABSTRACT:
A low density aggregate product and method for making the same utilizing coal ash slag resulting from a typical coal gasification system wherein the resulting aggregate product has a lower density than the initial coal ash slag. The coal ash slag is combined with a small amount of a binder and then fired for a predetermined time and temperature to produce the aggregate. Also, by heating the coal ash slag and binder, a gaseous efflux is emitted to form interlaced channels throughout the aggregate which have a characteristic length and diameter.

REFERENCES:
patent: 300593 (1884-06-01), Gebb
patent: 1580906 (1926-04-01), Korber
patent: 1746860 (1930-02-01), Lloyd
patent: 2055706 (1936-09-01), Ramseyer
patent: 2247120 (1941-06-01), Fitzgerald
patent: 2576565 (1951-11-01), Brown et al.
TCGP Licensee Technical Exchange Meeting "Solid Disposal And Its New Applications", Oct. 20-22-1987.

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