Low viscosity slurry and method of preparing same
AssigneePhillips Petroleum Company
InventorsYulin Wu, Ernest A. Zuech
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Abstract
A low viscosity slurry is prepared by first making a powder such that the shape of the particles of the powder is granular and then mixing the powder and a suitable dispersant.
Claims18
A method of preparing a relatively low viscosity slurry comprising:
- (a) providing a material which forms a relatively high viscosity slurry of thin plate-shaped individual crystals when a dilute aqueous solution thereof is mixed with a dispersant in which said material is insoluble and to which said material is inert, and water is evaporated therefrom;
- (b) preparing a powder of granular shaped particles of said material;
- and
- (c) mixing directly with said dispersant said powder of granular shaped particles so that the thus produced slurry has a lower viscosity than a slurry comprising said dispersant with an equal weight percent of said material wherein said material is essentially in the form of individual plate-shaped crystals having a larger size than particles of said powder.
A slurry having a relatively low viscosity comprising a powder of granular shaped particles in the size range of about 50 mesh to about 140 mesh mixed with a dispersant in which said powder is insoluble and to which said powder is inert, the material of which said powder is formed being an organic acid salt having the formula ##STR3## wherein R is an aromatic hydrocarbon radical having 6 to about 35 carbon atoms, M is selected from the group consisting of an alkali and an alkaline earth metal, an n is an integer selected from the group consisting of 1, 2, 3 and 4, the viscosity of said slurry being less than the viscosity of a slurry comprising said dispersant with an equal weight percent of said material wherein said material is essentially in the form of individual plate-shaped crystals having a larger size than particles of said powder.
Dependencies are inferred from the claim text.