Method of making diatomaceous earth granulate
AssigneeImerys Minerals Limited
InventorAndrew Riley
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Abstract
A method of making a diatomaceous earth granulate may include spray-drying a suspension including particles of diatomaceous earth, a liquid medium, and a binder, wherein inorganic solids in the suspension include at least 80 wt % diatomaceous earth. The method may further include recovering a diatomaceous earth spray-dried granulate. A granular diatomaceous earth product obtained by the method may include substantially spherical granules, each having a shell including diatomaceous earth surrounding a hollow core. The product may be used as a filter aid or in filtration.
Claims22
A method of making a diatomaceous earth granulate, the method comprising:
- spray-drying a suspension comprising particles of diatomaceous earth, a liquid medium, and a binder, wherein inorganic solids in the suspension comprise at least 80 wt % diatomaceous earth;
- and
- recovering a diatomaceous earth spray-dried granulate.
A method of filtering a liquid, the method comprising:
- passing the liquid through a filter comprising at least one of granules of spray-dried diatomaceous earth or a shaped body formed from granules of spray-dried diatomaceous earth.
Dependencies are inferred from the claim text.