The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 25, 2023

Filed:

Jan. 06, 2017
Applicant:

Ep Minerals, Llc, Reno, NV (US);

Inventors:

Scott Kevin Palm, Reno, NV (US);

George A. Nyamekye, Sparks, NV (US);

Assignee:

EP Minerals, LLC, Reno, NV (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/14 (2006.01); B01D 39/20 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01);
U.S. Cl.
CPC ...
B01J 20/14 (2013.01); B01D 39/20 (2013.01); B01J 20/28011 (2013.01); B01J 20/3071 (2013.01); B01J 20/3078 (2013.01); B01D 2239/1258 (2013.01);
Abstract

This disclosure relates to ultra-high performance diatomite products possessing very high silica specific volume, a characteristic which provides for high filtration performance, in terms of low unit consumption and long filtration cycle times. These novel products of this disclosure also show very low extractable metals for both the non-acid washed and the high purity (acid washed) grades. These characteristics are of particular value in the separation of solids from high purity liquids in electronic chemical, specialty beverage and life science applications. In addition to outstanding physical and chemical characteristics, these products also contain no detectable levels of cristobalite and have a wide range of permeabilities, and are produced from mineralogically impure ores containing high levels of alumina and iron oxide.


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