Abstract: Wood pulp is bleached using hydrogen peroxide as the oxidative bleaching agent in the presence of magnesium hydroxide or magnesium oxide. The bleaching process is carried out in the presence of magnesium hydroxide as the predominant, and preferably essential, source of alkali. The process optionally includes transition metal chelants, such as DTPA or EDTA in the bleaching slurry. The process eliminates the need for added caustic and silicate in such systems and can be carried out at or near neutral pH of 5.0 to 8.5.

Abstract: 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.

Abstract: Magnesium hydroxide slurries and a method of producing same that can be shipped, without agitation, over a period of at least 28 days and can be readily removed from transport vehicles to customer storage. With respect to customer usage, such slurries can be readily handled without leaving significant residue in storage tanks and without fouling the customer's equipment. Also disclosed are magnesium hydroxide slurries containing a level of solids that is greater than what is commercially available and a method of producing same.

Abstract: Magnesium hydroxide slurries and a method of producing same that can be shipped, without agitation, over a period of at least 28 days and can be readily removed from transport vehicles to customer storage. With respect to customer usage, such slurries can be readily handled without leaving significant residue in storage tanks and without fouling the customer's equipment. Also disclosed are magnesium hydroxide slurries containing a level of solids that is greater than what is commercially available and a method of producing same.

Abstract: A composition that when added to a dry material that is subsequently compacted, decreases the porosity of the resultant compacted material while improving the density and strength of the compacted material. The substantially dry composition comprises refractory aggregate coated with an organic compound. Preferably the coated aggregate has a size wherein at least 50% of the coated aggregate will pass a 100 mesh screen. Also disclosed is a method for making such a composition.

Abstract: A method for producing a stabilized magnesium hydroxide slurry comprising physically deflocculating the magnesium hydroxide solids in a starting slurry to produce a stabilized magnesium hydroxide slurry. Depending on the chloride level of the starting slurry, a cationic polymer may be added to the slurry. Optionally a thickening agent may be added to the deflocculated slurry. Also disclosed is a stabilized magnesium hydroxide slurry produced by the method which may be transported and stored without substantial agglomeration of the magnesium hydroxide solids.

Abstract: A sparger system for mixing a solid/liquid suspension in a cylindrical container comprises a sparger pipe which extends substantially parallel to the longitudinal axis of the container. The sparger pipe is separated from an inner wall of the container by a first distance and a first end portion of the sparger pipe extends through a side wall of the container. A first flange member is releasably coupled to the first end portion of the sparger pipe so that, when the first flange member is coupled to the first end portion of the sparger pipe, the first end of the sparger pipe is sealed. The flange member may be removed from the first end portion of the sparger so that pressurized liquid may be introduced directly into the sparger pipe to clean the sparger pipe and the container. A fluid passage is coupled to the sparger pipe and extends to an opening which is above a maximum level of liquid to be stored in the container.

Abstract: 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.

Abstract: A binder composition for aggregate mixtures which comprises a sugar selected from the group consisting of mono saccharides, di saccharides, tri saccharides and mixtures thereof. Also disclosed are a novel monolithic layer composition incorporating the binder and a method of forming a protective layer in a metallurgical vessel utilizing the monolithic layer composition.

Abstract: A binder for fertilizer granulation is taught, comprising a reactive mixture of a metal salt and a metal oxide or hydroxide. Use of this binder permits the incorporation of higher percentages of "fines" or small particle fertilizer components.

Abstract: Provided is a carbonaceous binder composition which comprises a polymerized and dehydrated carbohydrate, a monomer or polymer of resorcinol, and water. It is important that the carbohydrate is a polymer when combined with the remaining components of the composition. Polymerization of the carbohydrate prior to being combined with the other components of the composition has been found to result in an increased carbon yield upon pyrolysis of the binder. The binder composition also has an effective shelf life of three months or longer and gives off no objectionable smell either before or after being pyrolyzed. More importantly, the binder is also free of any skin or respiratory irritants, and is in effect non-carcinogenic.

Abstract: A scanning measurement system comprises a device for imaging an object, wherein the imaging device generates a plurality of data values representing distances from the imaging device to respective points on the object, and a device for processing the data values generated by the imaging device, wherein the processing device comprises a device for entering a predetermined 21/2-D mathematical model of the object, and a device for comparing the data values to the model to determine the object's thickness.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present invention relates to a novel binder combination for pelletized and compressed animal feed. This binder comprises a chemically reactive, molasses-free, mixture of a reactive phosphate source plus a reactive metal oxide, hydroxide, or salt.

Abstract: This invention relates to a phosphorous-containing organic binder compound for refractory ceramics, a process for the preparation of the binder compound, a pre-mixed, ready-to-use refractory/binder material having a long shelf-like, a method of using the pre-mixed refractory material, and a high strength refractory body produced from the pre-mixed refractory material.

Abstract: Magnesia pellets are formed from finely-divided, highly reactive, lightburned magnesia (MgO) particles by granulating such powders in conventional equipment using either an organic liquid or an organic liquid-binder mixture. The organic liquid may be an alcohol or a ketone the alkyl groups of which, independently, can have from 1 to 4 carbon atoms. Magnesium chloride and water are among disclosed binders which may be used in combination with said organic liquid. The organic liquid should be more than about 80% of any admixtures with water.

Abstract: 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.