Production of briquettes
AssigneeShell Oil Company
InventorsRobert Herment, Yves Lafage, Jean Claude Emo, Jean Marie Yurcek
Life of this patent
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Abstract
A process for producing briquettes from wet cakes or muds containing mineral ore, including coal particles, characterized in that a wet cake or a mud is mixed with a bituminous binder selected from the group consisting of powdered bitumen, molten bitumen and a bitumen emulsion, whereafter the resltant mixture is compressed into briquettes at a temperature which is at least equal to about the Ring and Ball temperature minus 40.degree.C of the bitumen present in the binder, after which optionally the briquettes are dried.
Claims8
A process for producing briquettes comprising admixing water-containing solid particles selected from the class consisting of mineral ore, coal and carbonaceous soot or a mud of said particles in a mixer with a bituminous binder selected from the group consisting of powdered bitumen, molten bitumen and bitumen emulsion, and then subsequently compressing the resultant mixture directly after mixing, without separation of a substantial amount of liquid water from the mixer, into briquettes at a temperature which is at least equal to about the softening point temperature, as measured by the Ring and Ball method, minus 40.degree.C of the bitumen present in the bituminous binder, the amount of the binder being such that the briquettes contain from about 1 to about 12% by weight of said binder.
Dependencies are inferred from the claim text.