Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1988-01-21
1989-09-12
Kastler, S.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75256, C22B 114
Patent
active
048656429
ABSTRACT:
A method is described for utilizing metal containing by-products or waste products of metallurgical processes. The metal containing particles, or dust originating in metallurgical processes are agglomerated with a combustible agglomerating agent, and are usually charged to smelters, converters, or similar high temperature installations for the recovery valuable metals present in such dust particles. The agglomerates are obtained by mixing the dust particles with an amount of combustible agglomerating agent. The amount of agglomerating agent used for producing the agglomerates is related to the bulk specific gravity and the particle size range of the dust particles. The combustible agglomerating agent of this method, such as hydrocarbon wax, tar, bitumen, distillation, residue and similar combustible material, is solid at ambient temperatures.
In the preferred embodiment the combustible agglomerating agent is mixed with the dust particles at a temperature above the melting point of the agglomerating agent, the hot mixture is subsequently allowed to cool in a mould and compacted. The cooled compacts are removed from the mould before utilization. In a particular form of application of this invention the mixture is allowed to cool in combustible containers and may subsequently be utilized as compacts bonded to their containers.
The agglomerated particles may be used for non-combusted purposes as well, such as support structures or filling in cavities, or merely for protecting the environment from loose dust particles of metallurgical origin.
REFERENCES:
patent: 3174846 (1965-03-01), Brisse et al.
patent: 3870507 (1975-03-01), Allen
patent: 3898076 (1975-08-01), Ranke
Iron Tiger Investments Inc.
Kastler S.
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