Qun L Wang

6653255, Nov 25, 2003

May 2, 2001

09/847879

Jerome C. Shiuh - Lompoc CA
Scott K. Palm - Santa Maria CA
Timothy R. Smith - Lompoc CA
George A. Nyamekye - Lompoc CA
Jeffrey D. Taniguchi - Santa Maria CA
Qun Wang - Lompoc CA

Advanced Minerals Coroporation - Santa Barbara CA

B01J 2014

502412

This invention relates to highly purified biogenic silica product obtained from diatomite and methods for preparing same. More particularly, this invention pertains to highly purified non-calcined, calcined, and flux-calcined diatomite products which bear the distinguishing porous and intricate structure of silica unique to diatomite and which have an extraordinarily high silica (i. e. , silicon dioxide, SiO ) content and low density, resulting in high silica specific volume. These products often also exhibit exceptionally low soluble metals content and/or extreme brightness.

7767621, Aug 3, 2010

Aug 24, 2007

12/438931

Qun Wang - Lompoc CA, US
Timothy R. Smith - Lompoc CA, US
Jeffrey D. Taniguchi - Santa Maria CA, US

World Minerals, Inc. - Santa Barbara CA

B01J 20/14

502412, 502232, 502240, 502243, 502250, 502251, 502252, 502400, 502407, 502410, 210656

Processes for preparing diatomaceous earth filter aids having a reduced beer soluble iron content, diatomaceous earth filter aids and compositions comprising the same, and methods for using the improved diatomaceous earth filter aids are disclosed herein. Further disclosed herein are processes for reducing beer soluble iron content by saturated steam treatment of a diatomaceous earth material in an enclosed vessel.

59085614, Jun 1, 1999

Jan 16, 1996

8/587199

Scott K. Palm - Santa Maria CA
Qun Wang - Lompoc CA

Advanced Minerals Corporation - Sana Barbara CA

B01D 3702

210777

This invention relates to purified natural glass products having low concentrations of soluble substances. More particularly, this invention relates to purified natural glass products having low slurry electrical conductivities (i. e. , less than about 18. mu. S-cm. sup. -1). Preferred embodiments are further characterized by low concentrations of soluble iron (i. e. , less than about 2 mg Fe/kg product) and/or low concentrations of soluble aluminum (i. e. , less than about 10 mg Al/kg product). These products may be prepared from natural glasses and natural glass products, including, for example, expanded perlite, pumice, expanded pumice, and volcanic ash. The products of the present invention retain the intricate and porous characteristics of the feed material but possess low concentrations of soluble substances, thereby permitting much greater utility, particularly in filtration applications.

56565682, Aug 12, 1997

Aug 11, 1995

8/514272

Jerome C. Shiuh - Lompoc CA
Scott K. Palm - Santa Maria CA
Timothy R. Smith - Lompoc CA
George A. Nyamekye - Lompoc CA
Jeffrey D. Taniguchi - Santa Maria CA
Qun Wang - Lompoc CA

Advanced Minerals Corporation - Lompoc CA

B01J 2014

502412

This invention relates to highly purified biogenic silica product obtained from diatomite and methods for preparing same. More particularly, this invention pertains to highly purified non-calcined, calcined, and flux-calcined diatomite products which bear the distinguishing porous and intricate structure of silica unique to diatomite and which have an extraordinarily high silica (i. e. , silicon dioxide, SiO. sub. 2) content and low density, resulting in high silica specific volume. These products often also exhibit exceptionally low soluble metals content and/or extreme brightness.

20220372299, Nov 24, 2022

May 18, 2022

17/747413

- Katy TX, US
Christopher Anderson - Granville OH, US
Alain Lambert - Thetford Mines, CA
Qun Wang - Reno NV, US

C09C 1/30
C01B 33/18
C09C 3/00
C09C 3/12
C09C 3/04
C08K 9/06
C09D 7/62

A cristobalite includes: a d50 particle size selected within a range of from 1 μm to 15 μm; an L color coordinate of greater than 96; a color coordinate of less than 1; and a b color coordinate of 1 or less, in which the cristobalite is a powder. Also provided are compositions containing the cristobalite, coatings formed with compositions, and methods of preparing cristobalite.

20190351355, Nov 21, 2019

Jan 6, 2017

16/476210

- RENO NV, US
Scott Kevin PALM - Reno NV, US
Peter E. Lenz - Reno NV, US
Qun WANG - Reno NV, US

EP MINERALS, LLC - RENO NV

B01D 39/20
B01J 20/14
B01J 20/28
B01J 20/30

This invention concerns ultra-high purity, ultra-high performance biogenic silica filtration products comprising diatomaceous earth. In particular, it relates to products comprising diatomaceous earth which is derived from ores that have been specifically selected for their naturally low centrifuged wet density and which have been intensively beneficiated to reduce extractable impurities to near or below detection limits. The low centrifuged wet density of the selected natural ore is either maintained or further reduced through the beneficiation process, which provides for filtration product/media with high particulate holding capacities able to provide for extended filtration cycle times.

20190285560, Sep 19, 2019

Jun 16, 2016

15/769031

- Reno NV, US
Scott K. Palm - Reno NV, US
George A. Nyamekye - Sparks NV, US
Bradley S. Humphreys - Sparks NV, US
Qun Wang - Reno NV, US

G01N 23/223
B01J 20/14
B01J 20/30

A method of determining opal-C and cristobalite contents of a product that comprises diatomite is disclosed. The method may comprise performing thermal processing to determine a loss on ignition for a representative first portion of a sample of the product; identifying and quantifying primary and secondary peaks present in a first diffraction pattern that results from bulk powder X-ray Diffraction on a representative second portion of the sample; and using a known standard sample of cristobalite to determine whether the primary and secondary peaks present in the first diffraction pattern indicate the presence of opal-C or cristobalite in the product.

20190054444, Feb 21, 2019

Jun 16, 2016

15/769009

- Reno NV, US
Scott K. Palm - Reno NV, US
George A. Nyamekye - Sparks NV, US
Bradley S. Humphreys - Sparks NV, US
Qun Wang - Reno NV, US

B01J 20/14
B01J 20/08
B01J 20/283
B01J 20/04
B01J 20/30
G01N 23/207

A diatomite product and method of using such is disclosed. The diatomite product may comprise sodium flux-calcined diatomite, wherein the diatomite product has a crystalline silica content of less than about 1 wt %, and the diatomite product has a permeability between 0.8 darcy and about 30 darcy. In some embodiments, the diatomite product may be in particulate or powdered form. This disclosure also concerns flux-calcined silica products containing low or non-detectable levels of crystalline silica. Some of these products can be further characterized by high permeabilities and a measurable content of opal-C, a hydrated form of silicon dioxide.