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7371356 Method for the production of precipitated calcium carbonate with a high degree of brightness  
Calcium carbonate with high brightness is prepared by treating calcium carbonate and/or the milk of lime used for its preparation by reacting milk of lime with carbon dioxide and/or at least one of...
7326400 Treatment of high sulfate containing quicklime  
A method is shown for controlling the presence of soluble sulfate ions in a lime slaking operation in which a source of quicklime is combined with slaking water to form calcium hydroxide product. A...
7018464 Body pigment and process for preparing the same  
A body pigment with a good skin feel for cosmetics is provided which has an appropriate crumbling property and combines slipping property and adhesiveness without compromising oil absorption. The...
6780393 Method of producing fine particles of metal oxide  
A method of producing fine particles of an oxide of a metal, comprising the steps of: preparing an acidic solution which contains ions of the metal; precipitating fine particles of a hydroxide of...
6761866 Single step process for the synthesis of nanoparticles of ceramic oxide powders  
The present invention relates to a single step process for the synthesis of nanoparticles of phase pure ceramic oxides of a single or a multi-component system comprising one or more metal ions. The...
6706197 Method for reducing phosphorus in a body of water  
This invention provides a method for reducing phosphorous in a body of water. This method comprises calcining a plurality of rocks and collecting carbon dioxide formed as a result of the calcining...
6692710 Method for obtaining magnesium by leaching a laterite material  
The present invention provides methods for the isolation and production of magnesium products from leaching of laterite material with acid. A magnesium compound is formed by downstream treatment of...
6503475 Process for the production of ultrafine powders of metal oxides  
A process for the production of ultrafine powders that includes subjecting a mixture of precursor metal compound and a non-reactant diluent phase to mechanical milling whereby the process of...
6451164 Alkyleneamine composition for enhancing lime mud dewatering  
A process for de-watering lime mud in a Krafft pulping process is described. The process includes an improvement which comprises adding an effective water-removal rate enhancing amount of an...
6395084 Platelet/flake magnesium oxide, methods of making the same, and magnesium oxychloride/oxysulfate ceramic materials  
Magnesium oxychloride and magnesium oxysulfate materials and methods of making the same are disclosed. The materials are cured reaction products of a magnesium oxide, and an aqueous magnesium salt...
6334990 Formulation of potassium sulfate, sodium carbonate and sodium bicarbonate from potash brine  
A process for the preparation of potassium sulfate, sodium bicarbonate and sodium carbonate. The process involves the treatment of potash brines by the reaction of sodium chloride and potassium...
6245315 Process for the production of high density hydration resistant lime sinter  
A process for the production of high density hydration resistant sintered lime which comprises washing limestone having impurities of less than 2% to remove external impurities, crushing the washed...
6146607 Process for producing highly reactive lime in a furnace  
A limestone furnace calcination process involves injecting finely divided limestone particles into a zone in a furnace at which the temperature of the flue gas stream, as it passes through the...
6074521 Method of separating impurities from lime and lime sludge  
A method of separating impurities from lime or the calcium carbonate or the lime sludge produced in the chemical recovery system of a pulp mill so that lime sludge or lime is dissolved in a...
5965103 Production of slaked lime  
A method of producing an aqueous suspension of calcium hydroxide which comprises passing a gaseous flow incorporating particles of calcium carbonate through a calcining furnace thermally to...
5906804 Magnesium hydroxide slurries  
Magnesium hydroxide slurries having the following characteristics: (i) having a solids content of between 40-80 wt. % based on the weight of the slurry with the balance being water; (ii) containing...
5733865 Processes for making a crystalline builder having improved performance  
A convenient process for making builder material which has substantially improved performance and is significantly less expensive than previous builders is provided. The builder material has...
5653948 Method for calcining fine limestone powder  
Method and apparatus for obtaining finely pulverized quicklime powder having high reactivity by calcining fine limestone powder, particularly, of particle sizes 1-100 micrometers. Coarse particles...
5498362 Process for the production of road deicers from water plant residuals  
An improved process for the production of road deicer products preferably containing calcium magnesium acetate or calcium magnesium acetate/calcium magnesium propionate is provided. The process...
5380505 Production of low sulfur content lime from limestone  
A process for calcining limestone to lime to produce a low sulfur content lime product, while combusting a sulfur-containing carbonaceous fuel in a rotary kiln to provide heat for the calcination....
5378319 Lime mud calcining using dielectric hysteresis heating  
Lime mud from kraft pulp recovery operations is processed using dielectric hysteresis heating, in a two-stage operation, in which wet lime mud first is dried then the dried lime mud is decomposed...
5260041 Method for the calcination of limestone  
A process for the continuous production of a calcined product containing a high level of reactive oxide valves, from a preheated raw material containing calcium carbonate values, said process...
5240692 Basic magnesium carbonate and process for preparation thereof  
Disclosed is a novel basic magnesium carbonate represented by the following general formula: nMgCO 3 .Mg(OH) 2 .mH 2 O wherein n is a number of from 3 to 5 and m is a number of from 3 to 5,...
5230880 Process and device for forming calcium oxide  
This is a process and a device making use of a process for forming calcium oxide from pulverulent calcium carbonate, according to which an initial bath of pulverulent calcium oxide is produced in a...
5152973 Synthesis of submicron powders under reduced oxygen pressure  
The invention process provides a metal oxide, or oxides of more than one more metal, wherein the oxides have a mean particle size less than 1 micron. The oxides are made by steps including (1)...
5122350 Method for preparing calcium magnesium acetate and a residual mineral product by selectively calcining dolomite  
Fermentors, reactors and processes for preparing magnesium enriched calcium magnesium acetate (CMA) (Mg:Ca mole ratios of 1:1 to 20:1) by reacting a dolomitic lime product with a Mg:Ca mole ratio...
5110567 Method and apparatus for heat treatment of lime mud  
In the heat treatment of lime mud, the lime mud to be introduced to a lime reburning kiln is dried in a pneumatic drier by flue gases from the lime reburning kiln in order to regenerate the lime...
5082648 Process for the preparation of high purity calcium titanate hydrates and product produced thereby  
A process for the preparation of high purity calcium titanate hydrates, particularly various forms of kassite, is disclosed. Calcium carbonate and titanium tetraisopropoxide are used as starting...
5041400 Low temperature synthesis of high purity monoclinic celsian  
A process for preparing monoclinic celsian from AlF 3 , Al 2 O 3 , BaCO 3 , and fused SiO 2 powders by heating an intimate mixture of the powders (1) at from about 700° to 900° C. to form topaz...
4994419 Low temperature synthesis of high purity monoclinic celsian using topaz  
A process for preparing monoclinic celsian from topaz and BaCO 3 , pows by heating an intimate mixture of the powders at a temperature of from 900° C. to less than 1590° C. in an atmosphere of...
4927611 Lightweight magnesia clinker and process for the preparation of the same  
A lightweight magnesia clinker containing magnesium oxide in an amount of more than 85 wt. % and having an apparent porosity of more than 40 vol. % and a bulk specific gravity of less than 2.0 g/cm...
4904638 Method of producing superconducting ceramics by co-precipitation of carbonates  
A process is disclosed for producing a homogeneous mixture of co-precipitated carbonate salts capable of reacting together in an oxygen atmosphere at an elevated temperature to form a...
4888308 Glass manufacture using dense, unsintered, granular alkaline earth metal carbonates  
A glass manufacturing process using a granular, free-flowing form of alkaline earth metal carbonate, e.g., barium or strontium carbonate, is disclosed. The alkaline earth metal carbonate has a...
4888161 Method of forming dense, unsintered, granular alkaline earth metal carbonates  
A method of converting fine particle size alkaline earth metal carbonate, e.g., barium or strontium carbonate, into a free-flowing granular form with relatively high bulk density, without...
4871519 Method of making magnesium oxide and hydrates thereof  
A process for producing magnesium oxide and/or hydrates thereof from predominantly magnesium or magnesium-calcium raw materials, and optionally producing calcium carbonate, whereby the raw material...
4859652 Method for preparation of high temperature superconductors using trichloroacetates  
Superior homogeneity in ceramic materials is achieved by forming an aqueous solution of trichloroacetates of certain metals, heating the solution to decompose the trichloroacetates to form...
4828620 Calcination of calcium carbonate and blend therefor  
A method for calcination of a calcium carbonate material comprising heating the calcium carbonate material to a temperature and for a time sufficient to calcine the material to the degree desired...
4775490 Magnesium overbasing process  
The invention describes a process for overbasing a substrate comprising mixing the substrate, water, a phenol, a source of magnesium and a carbonating agent, wherein the water is retained...
4767464 Carbonate-containing mineral fillers, pigments and similar materials  
Carbonate-containing mineral fillers, pigments and similar materials are disclosed which are characterized by a combination of four features. These carbonate-containing materials can be used in...
4748010 Energy conserving limestone calcining system  
Energy conserving limestone calcining system, including a process and apparatus in which in a first step or kiln zone limestone is heated, e.g., at 1700°-2100° F., sufficiently to achieve more...
RE32609 Continuous process for the manufacture of calcium magnesium acetate deicer  
Finely divided lime, at any degree of slaking, is introduced in a steady stream into an agitated reactor designed to produce pellets or aggregates. Concentrated acetic acid is simultaneously...
4721691 Magnesia clinker and method of producing the same  
The present invention disclosed a magnesia clinker excellent in corrosion resistance, which is useful for a magnesia carbon refractory and also for a refractory for steel manufacturing furnace, and...
4720375 Process for producing magnesium oxide  
High purity magnesium oxide is obtained from a magnesite-containing ore, the impurities of which include calcium compounds. The ore is first calcined and the resulting magnesium oxide is converted...
4710226 Fluidization of limestone slurries and resultant products  
The method of treating a limestone slurry to remove water therefrom comprising admixing therewith at least about 0.25 part by weight of a fluidizing agent for each 100 parts by weight of solids in...
4707350 Process and device for the decarbonation of minerals by fluidized bed calcination  
The invention relates to a process for the decarbonation of minerals, in powdered form, in a fluidized bed. For example, the process applies to the production of quick lime and/or magnesia from...
4617059 Demolition agent for brittle materials  
A demolition agent for brittle materials which is prepared by pulverizing a quick lime clinker including 0.5 to 10.0% by weight of phosphorus components in terms of P 2 O 5 .
4609536 Method for producing reactive lime and reducing sulfur dioxide  
Limestone is calcined by being suspended in hot gas produced by combustion of a low-carbon fuel to produce a quicklime of high surface area, which in one embodiment is used for flue gas...
4606836 Continuous process for the manufacture of calcium magnesium acetate deicer  
Finely divided lime, at any degree of slaking, is introduced in a steady stream into an agitated reactor designed to produce pellets or aggregates. Concentrated acetic acid is simultaneously...
4585743 High density magnesia clinker and process for its production  
High density magnesia clinker characterized by having a chemical composition, as oxides in weight %, of MgO: 97.5% or more CaO: 0.8-2.0% SiO 2 : 0.12-1.0% Fe 2 O 3 : 0.3% or less ...
4565579 Nonexplosive chemical composition for gently breaking rock or concrete mass  
A nonexplosive chemical composition for gently and noiselessly breaking a rock or concrete mass. The composition comprises a principal component which is prepared by calcining a starting mixture...
Matches 1 - 50 out of 212 1 2 3 4 5 >