Loading patent…
AssigneeWorld Minerals, Inc.
InventorsGeorge Asante Nyamekye, Joseph Levay, John Roulston, John Menear
Estimating the term…
Disclosed herein are diatomite filter aid products with enhanced permeabilities and flow characteristics, and methods for enhancing the permeabilities and flow characteristics of very fine grain, low permeability diatomite ore by, in one embodiment, pre-agglomerating the ore in the presence of less than 10% water and then subjecting the pre-agglomerated ore to at least one calcination process. At least one flux may be used in the at least one calcination process. Also disclosed herein is a method of processing diatomite ore suitable for samples with high wet densities or large amounts of fine particulate matter. Also disclosed herein are methods of producing commercially applicable filter aid products from Hungarian diatomite.
A method for preparing a diatomite filter aid product comprising:
A filter aid product comprising at least one pre-agglomerated, calcined diatomite made from at least one diatomite having a wet density greater than about 25 lb/ft3 and a permeability less than about 0.010 Da, wherein the product has a permeability from about 0.05 to about 6.0 Da and a wet density less than about 22 lb/ft3.
18-21. (canceled)
23-25. (canceled)
Dependencies are inferred from the claim text.