Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1997-01-29
1998-10-20
Andrews, Melvyn
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
75505, 75670, 75961, 588206, 588215, 588220, 588223, 423439, C21B 1304
Patent
active
058241345
ABSTRACT:
The use of and methods to use a novel category of hydrocarbon for direct reduction of iron ore. The novel hydrocarbons used as reducing feedstocks would normally be destined to become hazardous wastes or else their products of decomposition would be hazardous wastes. Such hydrocarbons are inclusive of but not limited to organic phosphates, organic sulfates, organic nitrogens, organic mercury or tin, contaminated hydrocarbons, and halogenated hydrocarbons. This category of hydrocarbons is otherwise difficult to utilize, incinerate, or otherwise dispose of safely. Polluting byproducts are almost always released. However a DRI reactor is herin fitted to utilize them productively and safely. These hydrocarbons would be used as an alternative to or admixture with the usual hydrocarbon feedstocks of choice, methane or related short chain hydrocarbons.
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patent: 5244490 (1993-09-01), Agarwal
patent: 5322544 (1994-06-01), Stebbing
patent: 5425792 (1995-06-01), Bishop et al.
patent: 5443572 (1995-08-01), Wilkinson et al.
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