Carbo Ceramics Inc.

U.S. Silica Company

Steve Canova

Benjamin Eldred

Claude A Krause

Chad D Cannan

Robert Duenckel

Brett A Wilson

Mark Edmunds

Clayton Frank Gardinier

Thomas C Palamara

Jimmy C Wood

Keith Lew

Keith Hogan

David Osby

Claude Krause

Ceramic particles for use in a solar power tower and methods for making and using the ceramic particles are disclosed. The ceramic particle can include a sintered ceramic material formed from a mixture of a ceramic raw material and a darkening component comprising MnO as Mn. The ceramic particle can have a size from about 8 mesh to about 170 mesh and a density of less than 4 g/cc.

Ceramic particles for use in a solar power tower

A composite particle is described herein. The composite particle can contain a seed particle of an agricultural treatment material and a shell disposed on the seed particle, wherein the shell comprises a clay.

Core-shell composite particles and methods of making same

Ceramic particles for use in a solar power tower and methods for making and using the ceramic particles are disclosed. The ceramic particle can include a sintered ceramic material formed from a mixture of a raw material and MnO. The sintered ceramic material can include about 0.01 wt % to about 10 wt % MnO, about 0.1 wt % to about 20 wt % FeO, and about 0.01 wt % to about 10 wt % MnO. The ceramic particle can have a size from about 8 mesh to about 170 mesh.

The present disclosure provides processes for forming angular ceramic particles. In at least one embodiment, a process for forming angular ceramic particles includes providing a slurry having a ceramic raw material having alumina. The process includes atomizing the slurry into droplets and coating seeds comprising alumina with the droplets to form green pellets. The process includes sintering the green pellets to form sintered pellets. The process includes breaking the sintered pellets to form the angular ceramic particles comprising a sintered ceramic material. The angular ceramic particles can have an abrasion loss that is less than that of angular ceramic particles formed by crushing the green pellets prior to sintering.

Angular ceramic particles and methods of making and using same

Roofing systems are disclosed herein. In particular, a method of making an asphaltic roofing product having an asphaltic substrate and at least one granule disposed thereon is disclosed herein.

Self-cleaning cool roof system

Roofing systems are disclosed herein. In particular, an asphaltic roofing product having an asphaltic substrate and at least one granule disposed thereon is disclosed herein.

Proppant having amphiphobic coatings and methods for making and using same are disclosed. The proppant having amphiphobic coatings can include a proppant particle having a size from about 8 mesh to about 140 mesh, density of less than about 4.0 g/cm, and a coating containing an amphiphobic material formed on an outer surface of the proppant particle.

Proppant having amphiphobic coatings and methods for making and using same

A foundry media pellet includes a sintered ceramic material having a size from about 10 AFS GFN to about 110 AFS GFN, and a surface roughness of less than about 4 microns.

Foundry media formed from slurry droplets and methods of use

Sintered, spherical composite pellets or particles comprising alumina fines, at least one of clay and bauxite and optionally a sintering aid, are described, along with a process for their manufacture. The use of such pellets in hydraulic fracturing of subterranean formations and in grinding is also described.

Sintered spherical pellets

Methods for producing solid, substantially round, spherical and sintered particles from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of greater than about 40 weight percent. The slurry is processed with spray drying methods into solid, substantially round, spherical and sintered particles having an average particle size greater than about 200 microns, a bulk density of greater than about 1.40 g/cc, and an apparent specific gravity of greater than about 2.60.

Method for producing solid ceramic particles using a spray drying process

The present invention relates to a round and spherical titanium dioxide scouring media and a method for producing the media. The scouring media is effective in removing titanium dioxide buildup on the walls of a titanium dioxide reaction vessel. The method consists of forming green titanium dioxide pellets in a high intensity mixer by mixing commercially available titanium dioxide dust and water. The high intensity mixer produces substantially round and spherical green pellets which are subsequently sized and sintered in a kiln to form round and spherical titanium dioxide sintered pellets that are suitable as a scouring media. The high intensity mixer allows the operator to closely control the size and shape of the pellets during the forming process to produce substantially round and spherical green pellets. Because the sintered titanium dioxide pellets are substantially round and spherical in shape, they are much less abrasive to the walls of the reaction vessel. Furthermore, as the pellets themselves abrade away, they do not contaminate the titanium dioxide product, and they can even be reprocessed into round and spherical scouring media.

Growing community of inventors

Macon, GA, United States of America

Steve Canova