Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1994-08-03
1995-08-22
Andrews, Melvyn
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
75 101, 266142, 405129, 588237, C22B 920, C22B 921
Patent
active
054436184
ABSTRACT:
An apparatus, and method of operating the apparatus, wherein a feed material is converted into a glassified condition for subsequent use or disposal. The apparatus is particularly useful for disposal of hazardous or noxious waste materials which are otherwise either difficult or expensive to dispose of. The apparatus is preferably constructed either by excavating a melt zone in a quantity of soil or rock, or by constructing a melt zone in an apparatus above grade and lining the melt zone with a back fill material if refractory properties are needed. The feed material is fed into the melt zone and, preferably, combusted to an ash, whereupon the heat of combustion is used to melt the ash to a molten condition. Electrodes may be used to maintain the molten feed material in a molten condition, and to maintain homogeneity of the molten materials.
REFERENCES:
patent: 88524 (1869-03-01), Stentor
patent: 1898926 (1933-02-01), Aarts et al.
patent: 4299611 (1981-11-01), Penberthy
patent: 4376598 (1983-03-01), Brouns et al.
patent: 5024556 (1991-06-01), Timmerman
patent: 5114277 (1992-05-01), Murphy et al.
patent: 5354355 (1994-10-01), Chapman
Andrews Melvyn
Battelle (Memorial Institute)
May Stephen R.
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