Agglomeration process utilizing emulsion

Details Agglomeration process utilizing emulsion Agglomeration process utilizing emulsion

1990-12-13

1992-02-11

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Consolidating metalliferous material by agglomerating,...

75325, C22B 1244

Patent

active

050872931

ABSTRACT:
A process is described for the agglomeration of fine particles utilizing a combustible agglomerating agent dispersed in an aqueous emulsion. The process is particularly directed to the handling of fine metal containing particles, originating as by-products or waste products of metallurgical processes, which are to be stored or recycled to metal extractive process steps. The amount of agglomerant added as aqueous emulsion to the particles, is calculated by correlating in an empirical formula the bulk density and the average particle size of the particles, with the emulsified combustible agglomerating agent to be added expressed as weight percent of the particles. The calculated amount of combustible agglomerating agent is emulsified in water, then mixed and blended with the particles, which usually comprise particles of non-uniform size distribution. The aqueous emulsion may also be formed in-situ on the surface of the particles, and the mixture is then blended to form agglomerates. The mixture which is advantageously at a temperature above the ambient, is allowed to cool and be compacted by its own weight. The dust free agglomerates obtained may be stored or charged directly to smelting or refining process steps.

REFERENCES:
patent: 2808325 (1957-10-01), Subervie
patent: 3966427 (1976-06-01), Herment et al.
patent: 4865642 (1989-09-01), Huddleston

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