Petrolite Corporation

William J Matlach

Charles L Thierheimer, Jr

Michael E Newberry

The invention pertains to particulate compositions comprising a mixture of a low melting point petroleum additive and a higher melting point polymer which mixture is then coated with a high melting point polymer. The mixture of the additive and higher melting point polymer has a melting point close to the melting point of the polymer (i.e., significantly higher than the melting point of the additive). The high melting point polymer coating allows the composition to be added to petroleum systems having high temperatures without immediately dissolving, i.e., the compositions are only slowly soluble in hot crude oil. Accordingly, a slow, controlled release is afforded by the compositions of the invention.

Particulate compositions used in petroleum systems comprising

Particulate compositions

An improved method of transporting viscous hydrocarbons containing at least 10 to 15 percent water from a well bore hole or between two points via pipeline which comprises adding to the viscous hydrocarbon containing water a sufficient amount of a nonaqueous solution or dispersion of a surfactant to form a low viscosity oil-in-water emulsion which is easily transported.

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St. Louis, MO, United States of America

William J Matlach