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| Number | Title | Issue Date |
| 8178069 | Basic magnesium sulfate granule, and process for production thereof Basic magnesium sulfate granules having a bulk density of 0.5-1.0 g/cm3, a mean crushing strength of 700-900 g and a water content of 3 wt. % or less which comprises agglomerated particles of fibrous basic magnesium sulfate particles and fibrous xonotolit... | 05/15/2012 |
| 7371357 | Process for removal of pollutants A process for the removal of pollutants from a combustion process and, more particularly, a process for removing pollutants such as carbon dioxide, mercury, sulphur dioxide, nitrogen compounds and oxygen compounds from a combustion process. The process includes the ... | 05/13/2008 |
| 7288232 | Self-cleaning UV reflective coating A photo-catalytic overcoat on a UV reflective paint layer is employed to maintain high reflectance for long periods of time by continuously removing organic films when exposed to UV light. Advantageously, nano-particles comprising the photo-catalytic overcoat are co... | 10/30/2007 |
| 7288239 | Method for producing alkaline earth sulphate nanoparticles The invention relates to synthesis of nanoparticles, in particular to methods for producing nanoparticles with networks consisting of Z sulphate (Z=magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) or the binary mixtures thereof). The inventive method consis... | 10/30/2007 |
| 7285260 | Synthesis method for carbon material based on LiMM'(XO) Method of synthesis for a material made of particles having a core and a coating and/or being connected to each other by carbon cross-linking, the core of these particles containing at least one compound of formula LixM1−yM′y(XO | 10/23/2007 |
| 7211235 | Method for producing hydrotalcites A method is described for the manufacture of hydrotalcites by using at least one compound of a bivalent metal (Component A) and at least one compound of a trivalent metal (Component B), wherein at least one of these components is not used in the form of a solution, ... | 05/01/2007 |
| 7008606 | Process for passivating sulfidic iron-containing rock A method is provided for passivating sulfidic iron-containing rock comprising contacting sulfidic iron-containing rock with one or more members of the group consisting of magnesium oxide, magnesium hydroxide, magnesium chloride, magnesium nitrate and magnesium carbo... | 03/07/2006 |
| 7001582 | Micronized barium sulfate Micronized barium sulfate (BaSO4) and methods for the production and use thereof. The micronized barium sulfate of the invention is particularly suitable for use as an additive or filler for adhesives, colorants, rubber articles and/or cosmetics. ... | 02/21/2006 |
| 6858562 | Catalyst for decomposing organic harmful substances and method for decomposing organic halides by use thereof A catalyst of a water insoluble vanadyl sulfate or a complex catalyst, in which a specific oxide and a specific sulfate are combined to the water insoluble vanadyl sulfate are excellent not only in their activity, durability and SO2 resistance, not only i... | 02/22/2005 |
| 6692656 | Amphoteric magnesium buffers A method of using a mixture as an amphoteric buffer is disclosed comprising mixing sulfuric acid, magnesium oxide and/or magnesium hydroxide, and water to form an amphoteric buffer, and applying the buffer to a spill of an acid or alkali so as to neutrali... | 02/17/2004 |
| 6537962 | Composite powder The present invention pertains to a composite powder comprising (A) an alkali metal silicate particle having an average particle size of from 1 to 500 μm; and (B) a water-soluble salt particle having an average particle size of from 0.01 to 50 μm, of wh... | 03/25/2003 |
| 6478971 | Process for removing sulfate from an aqueous salt solution A simple, effective, cost-efficient method of precipitating sulfate in an aqueous salt solution and removing the precipitate from the solution. The steps of the method include diluting the solution and slowly adding a precipitant to the solution. By follo... | 11/12/2002 |
| 6365122 | Process for manufacturing potassium sulfate fertilizer and other metal sulfates A new process of preparing potassium sulfate fertilizer and other metal sulfates from the chlorides and other halides of these metals. The process utilizes the discovery that sulfur dioxide or trioxide, when introduced as a fluidizing medium into shallow ... | 04/02/2002 |
| 6306494 | Fine particulate synthetic chalcoalumite compounds, process for their production, and heat insulator and agricultural film containing the fine particulate synthetic chalcoalumite compounds Novel, fine particulate synthetic chalcoalumite, process for preparation thereof, and a heat insulating agent and agricultural film containing said fine, particulate synthetic chalcoalumite. The above objects are met by synthetic chalcoalumite represented... | 10/23/2001 |
| 6221332 | Multiple stream high pressure mixer/reactor Enhanced macromixing, mesomixing, and micromixing of multiple discrete reactant streams, particularly for precipitation reactions of low density pumpable fluids, are obtained by controlled continuous high pressure multiple reactant streams flowing into a ... | 04/24/2001 |
| 6214313 | High-purity magnesium hydroxide and process for its production Magnesium hydroxide of high purity, having a fine particle size suitable for use in flame retardants and other high-end uses, is produced by utilizing flue gas desulfurization system process slurry as feedstock; the production process is absent energy-int... | 04/10/2001 |
| 6203769 | Process for the treatment of fluoboric electrolyte The invention relates to a method for the treatment of fluoboric electrolyte resulting from the processes of electro-extraction of metals such as copper and lead comprising a leaching stage with fluoboric acid, in order to recycle said fluoboric acid to b... | 03/20/2001 |
| 6187277 | Method for purifying gases A method is provided for removing sulfur dioxide and carbon dioxide out of gases from, for example, the combustion of sulfur containing fossil fuels. The sulfur dioxide and carbon dioxide contaminated gas is first contacted with an aqueous solution contai... | 02/13/2001 |
| 6099814 | Method for processing acid effluents In the method for the humid treatment of effluents containing a compound selected from the group consisting of H2 SO4, free SO2, SO3-, or SO4= and having a pH lower than 5, the ... | 08/08/2000 |
| 6086842 | Recycling of sodium hydroxide and production of gypsum from dry flue gas desulfurization The present invention is directed towards a system that makes high quality gypsum from a dry flue gas desulfurization process which utilizes a low temperature regeneration of the carbon adsorbent in the flue gas process. The high quality gypsum is easily ... | 07/11/2000 |
| 5980856 | Synthetic chalcoalumite-type compounds and processes for producing the same This invention relates to synthetic chalcoalumite-type compounds represented by formula (1) below: M2+a-x/2 Lix1+ Al43+ (OH)b (An-)c.mH.sub.2 O ... | 11/09/1999 |
| 5976511 | Ultraviolet rays-absorbing composition and process for producing the same The invention provides an ultraviolet rays-absorbing composition having a pearly luster which comprises plate barium sulfate particles having a surface coated with at least one of zinc oxide, cerium oxide and titanium oxide and a process for preparing the... | 11/02/1999 |
| 5861133 | Synthetic chalcoalumite compounds and process for producing thereof A synthetic chalcoalumite compound represented by the formula (1) (Zna-x2+ Mx2+)Al43+ (OH)b (An-)c.mH.sub.2 O (1) wherein M2+... | 01/19/1999 |
| 5814291 | Simplified synthesis of anion intercalated hydrotalcites The present invention is one-step method for synthesizing a synthetic anion intercalated hydrotalcite material. The method comprises reacting an aluminum source with a magnesium source in the presence of an inorganic acid of the anion to be intercalated, ... | 09/29/1998 |
| 5709730 | Hydrometallurgical processing of flue dust Electric arc furnace production of recycled steel is plagued by the formation of an iron-depleted, metal-rich electric arc flue dust (EAFD). In the present invention, we recover at least about 85 wt. % of the base metals in the EAFD (i.e., lead, cadmium, ... | 01/20/1998 |
| 5707960 | Amorphous sodium silicate-metal sulfate composite powder Amorphous sodium silicate-metal sulfate composite powder having water softening power and having small hygroscopicity, and useful as a detergent builder is provided. This amorphous sodium silicate-metal sulfate composite powder is characterized in that it... | 01/13/1998 |
| 5580377 | Plate barium sulfate and process for producing the same A plate barium sulfate is described, which has a particle size of from 1 to 100 μm or from 5 to 150 μm, wherein neither a sulfide nor a soluble barium salt is detected by an analysis method based on the Japanese Cosmetics Material Standard. The process ... | 12/03/1996 |
| 5554355 | Oxide slurry for industrial process applications A method and apparatus for forming a slurry of metal oxide in a mineral or the like (e.g. of magnesium or calcium oxide) and introducing the slurry to an acid neutralization process in a time period before substantial hydration of the oxide has occurred.... | 09/10/1996 |
| 5443622 | Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper Impurity streams generated during the pyrometallurgy of copper are hydrometallurgically processed at ambient pressure for recovery of primary values in an energy-efficient manner and with the capture and conversion of metallic impurities to states that ar... | 08/22/1995 |
| 5326548 | Fibrous anhydrous magnesium oxysulfate and process for the preparation thereof A fibrous anhydrous magnesium oxysulfate having a rational formula of MgSO4.5Mg(OH)2 has an excellent oil absorptivity and appropriate hygroscopicity. The fibrous anhydrous magnesium oxysulfate is prepared by a process comprising coo... | 07/05/1994 |
| 5324500 | Method for processing residues of barium sulfide or strontium sulfide leaching A method for treating residues of barium sulfide or strontium sulfide leaching with waste sulfuric acid and hydrochloric acid, which method significantly decreases the amount of residual material which must be disposed of.... | 06/28/1994 |
| 5312604 | Work-up of waste materials from barium or strontium sulfide leaching A process for working-up waste materials from barium sulfide or strontium sulfide leaching in which the amount of waste material to be disposed of is substantially decreased.... | 05/17/1994 |
| 5281242 | Method for recovering magnesium sulfate products from mixtures of epsomite and halite A simple, efficient and inexpensive method of purifying magnesium sulfate from mixtures of epsomite and halite. The method allows for the preparation of substantially pure magnesium sulfate products. The method generally involves heating a mixture of epso... | 01/25/1994 |
| 5262148 | Process for preparing barium sulfate Barium sulfate having a specific crystal structure and optical characteristics is disclosed. The crystals have a plate-like structure of which the aspect ratio is 5-100 and the ratio of the square of the circumference of the plate and the area of the orth... | 11/16/1993 |
| 5262147 | Basic composite metal sulfate fiber, process for the production thereof, and composition containing the same A novel basic composite metal sulfate fiber, a process for the production thereof, and a resin and/or rubber composition which contains the basic composite metal sulfate fiber and gives a molded article which is improved in mechanical strength and/or flam... | 11/16/1993 |
| 5246687 | Solid-state preparation of high purity barium sulfate A novel, solid-state, low-temperature preparation of barium sulfate provides a higher purity material than that obtained by the conventional method of precipitation. The reaction involves heating a barium oxysalt in the presence of at least one sulfur-con... | 09/21/1993 |
| 5246686 | Basic aluminum chlorosulfate flocculating agents Novel basic aluminum chlorosulfate solutions, having a basicity ranging from 45% to 70% and wherein more than 80% of the SO42- values are complexed, prepared, e.g., by reacting calcium carbonate with a chlorosulfuric solution of alum... | 09/21/1993 |
| 5154752 | Suppression of fines during the granulation of ammonium nitrate The formation of dust or fines may be suppressed, during the granulation of ammonium nitrate having a nitrogen content of 28% to 34.5%, by a process in which ammonium nitrate is initially granulated to form a raw granulate containing fines, and thereafter... | 10/13/1992 |
| 5082646 | Fibrous magnesium oxysulfate of granular form and a method of producing same A fibrous magnesium oxysulfate of granular form according to the present invention has an apparent specific gravity of 0.13-0.25, an oil absorption of 250-600 ml/100 g, a fiber diameter of 0.1-2.0 μm and a fiber length of 10-100 μm. The thermoplastic re... | 01/21/1992 |
| 5021226 | Method of producing fibrous magnesium oxysulfate of granular form A fibrous magnesium oxysulfate of granular form according to the present invention has an apparent specific gravity of 0.13-0.25, an oil absorption of 260-600 ml/100 g, a fiber diameter of 0.1-2.0 μm and a fiber length of 10-100 μm. The thermoplastic re... | 06/04/1991 |
