Martin Marietta Magnesia Specialties, Inc.

Martin Marietta Materials, Inc.

Martin Marietta Magnesia Specialities Inc.

David Morgan Smith

Mark T Wajer

Richard H Van De Walle

Lemuel Granada, Jr

Joseph T Witkowski

James Innes

Vernon D Miles

The invention provides a submicron magnesium hydroxide particulate composition comprising a first distribution of magnesium hydroxide particles having a D50 of no more than about 0.30 &#x3bc;m, a D90 of no more than about 1.5 &#x3bc;m, and a BET surface area of at least about 35 m/g, which can be used as a flame-retardant additive for synthetic polymers, optionally in combination with other flame-retardant additives such as nanoclays and larger-sized magnesium hydroxide particulate compositions. Polymeric resins comprising the submicron magnesium hydroxide particles and methods of manufacturing submicron magnesium hydroxide particles are also provided.

Flame-retardant magnesium hydroxide compositions and associated methods of manufacture and use

A process for the utilization and strategic addition of ash modifying compounds, into selective catalytic reduction units, to modify the resultant ash chemistry to control ash accumulation and corrosive effects of the combustion products, and problems associated with fly-ash disposal or recycling.

Process for the control of ash accumulation and corrosivity associated with selective catalytic reduction technology

A stabilized, pressure-hydrated magnesium hydroxide slurry and a process for its production from burnt magnesite are described. According to an embodiment of the invention, a mixture comprising burnt natural magnesite and water is pressure hydrated to provide a pressure hydrated slurry. The pressure hydrated slurry is then deagglomerated. If desired, chloride ions and cationic polymer can be added to further stabilize the slurry.

Stabilized, pressure-hydrated magnesium hydroxide slurry from burnt

A binder composition particularly well suited for pelleted and compressed aquatic animal feeds comprising: 10-17%, by weight a reactive metal source; 25-35%, by weight, a reactive metal oxide or hydroxide; 18-28%, by weight, sugar and 28-42%, by weight, corn syrup solids. The binder composition produces feeds with lower calcium and magnesium concentrations that typically utilized binders.

Nutritive feed binder

Provided is a process for the removal of metal ions from water which comprises filtering the water through a bed or layer of granular lightburned or hardburned magnesium oxide. The use of granular hardburned or granular lightburned grades of the magnesium oxide provides one with a most effective process for the removal of metal ions, as well as a process which permits a greater throughput of water before the effectiveness of the magnesium oxide decreases substantially. The process of the present invention also involves an acidic backwash to regenerate the granular magnesium oxide. The acidic backwash is used to strip the captured metal ions from the surface of the granules, and has been found to be quite effective. The acid is generally a dilute acid, e.g., about 1 to 10 percent by weight acid concentration.

Process for removal of metal ions from water

Compositions and methods are provided for controlling dust production from coal, for controlling dust losses from coal, for reducing decrepitation, and for facilitating cold-weather handling of coal. The compositions comprise blending oil and petroleum resin where the blending oil can comprise reclaimed motor oil, light or heavy oil obtained from the refining of petroleum crude, virgin or reprocessed vegetable or animal oils, or oils of mineral origin, and where the petroleum resin comprises resin obtained from the deresination of cylinder stocks or cylinder stock itself, or a combination thereof. The petroleum resin may also contain optional ingredients such as diesels and/or bright stock for motor oils to reduce viscosity.

Agent for the suppression of coal dust

A binder composition is taught for the granulation of fine particulate fertilizer, which binder comprises an admixture of reactive carbonate, sulfate, silicate strengthener, and water dispersant, said binder being reactive in the presence of an acid activator.

Growing community of inventors

Kearneysville, WV, United States of America

David Morgan Smith