Interlake, Inc.

Victor D Beaucaire

Louis Allen Marlin

A method of preparing a stabilized fuel slurry is disclosed wherein a petroleum fuel oil is mixed with run of the mine coal and with an emulsifier, which is capable of forming a thixotropic water external-oil high internal phase emulsion. The slurry is mechanically mixed to comminute the coal to produce a stabilized fuel slurry with coal particles having diameters as large as about 1/4 inch. The slurry is injected through lances into a blast furnace, the lances may provide concentric streams of slurry and steam. The slurry may also be used in other fuel burning furnaces such as boilers, cement kilns, etc.

Stabilized fuel slurry

A process for treating waste rolling oil in the form of an oil and water emulsion. The oil and water emulsion is used during the cold rolling of steel to reduce the thickness thereof and is treated by breaking the emulsion with waste pickling acid solution and thereafter converting iron ions present in the waste pickling acid solution to magnetite particles which absorb the oil. The magnetite particles and the oil absorbed thereby are separated from the solution leaving a clarified solution.

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Orland Park, IL, United States of America

Victor D Beaucaire