Gulf Oil Canada Ltd.

Gulf Canada Corporation

Alan Logan

Eric C Pease

Maurice Moyle

Gerhard J Kennepohl

Buenaventura B Galvez

David C Bean

Buenanventura B Galvez

Apparatus is disclosed for continuous preparation of a blend of liquid sulfur in fluid asphalt in specified proportions to provide a dispersion of fine sulfur droplets in the asphalt, particularly suitable for coating onto aggregate to form 'hot mix' for asphalt concrete of improved strength.

Apparatus for continuous preparation of sulfur asphalt binders and

A process having a particular sequence of steps, each under specified conditions, for preparing a petroleum pitch binder suitable for electrodes used in smelting aluminum is disclosed. In the essential steps of the invention a decant oil petroleum fraction is heat treated under pressure, the treated material is flashed to a lower pressure, and finally the material is oxy-activated under elevated temperature conditions to form a petroleum pitch having the desired properties.

Preparation of petroleum pitch

A process having a specified sequence of steps for preparing a petroleum pitch binder suitable for electrodes used in smelting aluminum is disclosed, in which a decant oil petroleum fraction is oxy-activated under specified conditions of temperature, pressure, and time, then heat treated under other specified conditions, and finally distilled under specified conditions to form a petroleum pitch having desired properties.

Petroleum pitch preparation

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Oakville, Canada

Alan Logan