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US 7,479,490 B2Granted
Pellet for a presurrized pipeline
AssigneeNalco Company
InventorsRobert R. Adams, Rodney H. Banks, Mita Chattoraj, Joe L. Schwartz
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Abstract
A system of equipment allowing addition of solid materials to a pressurized pipeline wherein said solid material is conveyed in such a way as to be readily dissolved by the liquid in said pipeline. The system includes a solid material transfer device that is used to transfer solid material to the point of intake in a pressurized pipeline, without allowing liquid from the process pipeline to access the solid material in the solid material feeder. The system of equipment has been found to be particularly useful in feeding pellets containing resazurin.
Claims3
A pellet comprising:
- a) from about 1 to about 40 weight percent resazurin;
- b) from about 0 to about 30 weight percent anhydrous sodium sulfate;
- c) from about 15 to about 60 weight percent 1-hydroxyethylidene biphosphonate, tetrasodium salt;
- and
- d) from about 0.0 to about 4.0 weight percent stearate.
2 more elements
Dependencies are inferred from the claim text.