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US 9,174,197 B2Granted
Fluid filtration medium
AssigneeZeotech Corporation
InventorStephen L. Peterson
Life of this patent
Estimating the term…
Abstract
A method of forming a treated granulized zeolite product includes applying a cationic surfactant to a granulized zeolite material, such that an amount applied to the granulized zeolite material covers at least 20 percent of the ECEC sites of the granulized zeolite material, granulizing a zeolite material to produce the granulized zeolite material, the zeolite material having a d50 in a range of 300 to 30 micron size.
Claims3
A method of forming a treated granulized zeolite product, comprising:
- applying a cationic surfactant to a granulized zeolite material, such that an amount applied to the granulized zeolite material covers at least 20 percent of the ECEC sites of the granulized zeolite material;
- and
- granulizing a zeolite material to produce the granulized zeolite material, the zeolite material having a d50 in a range of 300 to 30 micron size.
A method for re-activating spent surfactant treated media, comprising:
- creating an aqueous solution of cationic surfactant, having:
- a quantity of cationic surfactant to cover from about 20 percent to about 100 percent of External Cation Exchange sites of the granulized zeolite;
- and
- contacting with re-activating solution, followed by backwashing and rinsing the filter media to complete activation.
1 more element
A method for treating a zeolite with a surfactant, comprising:
- installing a quantity of zeolite in a filter vessel;
- activating the zeolite having a granulized zeolite formed from at least one of a clinoptilolite, mordenite, phillipsite, erionite, chabazite, or faujasite with a prepared amount of cationic surfactant solution to cover from about 20 percent to 100 percent of the External Cation Exchange sites of the granulized zeolite;
- passing a volume of fluid containing turbid particles through the activated surfactant-treated zeolite;
- removing an amount of the turbid particles from the fluid with the activated surfactant-treated zeolite;
- and
- wherein the cationic surfactant has at least one of polyamines, quaternary amines, alkylamines, or organo-silane quats.
3 more elements
Dependencies are inferred from the claim text.