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| Application No. | Application Title | Issue Date |
| 20120041128 | HIGHLY DISPERSIBLE SILICA FOR RUBBERS AND THE PROCESS FOR OBTAINING IT The present invention relates to a precipitated silica for elastomers and, more particularly, to a new highly dispersible and highly reinforcing precipitated silica for elastomers. The invention further provides the process for its production and rubber products made th... | 02/16/2012 |
| 20120029136 | HYDROPHILIC SILICA AS FILLER FOR SILICONE RUBBER FORMULATIONS Provided is a hydrophilic precipitated silica which is well suited to use in silicone rubber formulations (RTV-1, RTV-2, HTV and LSR), particularly well suited to use in HTV silicone rubber formulations. It has a BET surface area of 185˜260 m2/g, a CTAB surf... | 02/02/2012 |
| 20110263784 | METHOD OF PREPARING SILICAS, SILICAS WITH SPECIFIC PORE-SIZE AND/OR PARTICLE-SIZE DISTRIBUTIONS, AND THE USES THEREOF, IN PARTICULAR FOR REINFORCING POLYMERS The invention relates to a novel method of preparing silicas and to highly-structured silicas having the following characteristics: a specific surface area CTAB (SCTAB) of between 40 and 525 m2g/g; a specific surface area BET (SBET) of b... | 10/27/2011 |
| 20110244238 | METHOD FOR PRODUCING HIGH-PURITY SIO2 FROM SILICATE SOLUTIONS The invention relates to a novel method for producing high-purity SiO2 from silicate solutions, a novel high-purity SiO2 with a specific impurity profile and use thereof.... | 10/06/2011 |
| 20110178227 | NOVEL PRECIPITATED SILICA HAVING PARTICULAR MORPHOLOGY, GRADING AND POROSITY, PREPARATION THEREOF AND REINFORCING OF POLYMERS THEREWITH Precipitated silicas including clusters of large primary silica particles having at the surface thereof small primary silica particles, have a specific surface area CTAB (SCTAB) ranging from 60 to 400 m2/g; a cluster average size d50, as measured b... | 07/21/2011 |
| 20110129401 | PRODUCTION OF PRECIPITATED SILICA EMPLOYING A FAST BLENDER A unique method for preparing precipitated silica entails reacting a silicate with an acidifying agent to obtain a suspension of precipitated silica, and separating and drying the suspension, and further wherein the precipitation includes contacting a silicate with an a... | 06/02/2011 |
| 20110021801 | PRECIPITATED SILICAS AS A REINFORCING FILLER FOR ELASTOMER MIXTURES The present invention relates to precipitated silicic acids, which have a particularly narrow particle size distribution in combination with a special pore size distribution, to a method for the production thereof, and to the use thereof as a filler for rubber mixtures.... | 01/27/2011 |
| 20100292386 | MICROPOROUS PRECIPITATED SILICA Described herein is microporous precipitated silica having the following physico-chemical parameters: a CTAB surface area of 50 to 300 square meters/gram, a BET/CTAB ratio of ≧1.3, and a relative breadth γ of pore size distribution of ≦3.5. The precipitated silica ... | 11/18/2010 |
| 20100247415 | Method of Removing and Recovering Silica Using Modified Ion Exchange Materials A method of preferentially removing or recovering silica from a source, including aqueous sources such as ground and potable water, which utilizes a modified ion exchange material that holds or captures the silica by ion exchange with a metal contained in the exchange m... | 09/30/2010 |
| 20100083876 | PRECIPITATED SILICA AND PAPER INDUSTRY/OTHER APPLICATIONS THEREOF Precipitated silica specifically useful in the paper industry and in particular in paper-coating applications for inject printing, is characterized by an uptake of DOP oil lower than 260 ml/100 g, a pore volume (Vd25) of greater than 0.8 ml/g formed by pores ... | 04/08/2010 |
| 20100069237 | MESOPOROUS SILICA PARTICLES The present invention relates to (1) hollow silica particles including an outer shell portion having a mesoporous structure with an average pore size of from 1 to 10 nm, wherein the silica particles have an average particle diameter of from 0.05 to 10 μm, and 80% or mo... | 03/18/2010 |
| 20090311154 | Extraction process for reactive metal oxides The present invention relates to a zero-waste process for extraction of alumina from different types of bauxite ores and red mud residues and of titanium dioxide from ilmenite. Iron oxide is first reduced to metallic iron above the melting point of C-saturated cast iron... | 12/17/2009 |
| 20090263657 | Process for production of precipitated silica from olivine Process for the production of precipitated silica from olivine including the following steps:—providing olivine particles with a particle size preferably below 1 mm in diameter,—preferably mixing olivine and water to form an olivine/water slurry,—mixing the olivin... | 10/22/2009 |
| 20090136672 | NEW PRECIPIATED SILICA FOR THICKENING AND CREATING THIXOTROPIC BEHAVIOR IN LIQUID SYSTEMS A precipitated silica having a d50-value of from 150 to 2000 nm, a d90-value of from 500 to 7000 nm, a silanol group density of from 2.5 to 8 OH/nm2, and a modified tapped density of less than or equal to 70 g/l is useful for thickening ... | 05/28/2009 |
| 20090101866 | EFFICIENT MATTING AGENTS BASED ON PRECIPITATED SILICAS Highly efficient matting agents based on precipitated silicas and wax-coated precipitated silicas, their preparation, and their use in inks and paints.... | 04/23/2009 |
| 20090081105 | Silica Extraction From Geothermal Water A method of producing silica from geothermal fluid containing low concentration of the silica of less than 275 ppm includes the steps of treating the geothermal fluid containing the silica by reverse osmosis treatment thereby producing a concentrated fluid containing th... | 03/26/2009 |
| 20090074640 | SILICA REMOVAL FROM PREGNANT LEACH SOLUTIONS The present invention relates generally to a process for removing dissolved or colloidal silica from a pregnant leach solution (“PLS”). More particularly, an exemplary embodiment of the present invention relates to a process which mixes PLS with an acid source, pref... | 03/19/2009 |
| 20090060816 | MESOPOROUS SILICA PARTICLES AND PRODUCTION PROCESS THEREOF A process for wet pulverizing mesoporous silica particles while a surfactant exists in mesopores, and mesoporous silica particles having an average particle diameter of 1 μm or less, wherein the volume of mesopores having a diameter of 2 to 50 nm is 0.7 mL/g or more an... | 03/05/2009 |
| 20090010832 | PROCESS FOR THE PREPARATION OF FINELY DIVIDED PRECIPITATED SILICA The present invention provides a process for the preparation of finely divided precipitated silica. Finely divided precipitated silica is prepared by neutralization of alkali silicate solution, under continuous stirring, at 60° to 90° C. in presence of alkali metal sa... | 01/08/2009 |
| 20080305027 | Nano-Structured Silicate, Functionalised forms Thereof, Preparation and Uses This invention relates to the preparation, functionalisation and use of a novel nano structured silicate, generally a calcium silicate which may be hydrated. It also relates to novel methods of producing nano structured silicates. The novel nano-structured silicate mate... | 12/11/2008 |
| 20080267853 | PROCESS FOR PRODUCING INORGANIC SPHERES To provide a process for producing inorganic spheres having a substantially uniform particle size with high productivity. In a process for producing inorganic spheres, which comprises a step of injecting an alkaline aqueous liquid containing an inorganic compound into a... | 10/30/2008 |
| 20080199385 | Process for Producing Silica and Sodium Sulfite with Sodium Sulfate Provided is a process for producing silica and sodium sulfite with sodium sulfate, wherein a mixture of quartz sand, sodium sulfate and carbon is reacted to produce solid sodium silicate and sulfur dioxide, which are used to produce silica and sodium sulfite through the... | 08/21/2008 |
| 20080199384 | Process For Producing Silica, Sodium Sulfite and Sodium Hydrogen Sulfite With Sodium Sulfate The present invention provides a process for producing silica, sodium sulfite and sodium hydrogen sulfite with sodium sulfate, wherein quartz sand, sodium sulfate and carbon are mixed and charged into a furnace for reaction and the obtained solid sodium silicate and sul... | 08/21/2008 |
| 20080160052 | Precipitated silica materials exhibiting high compatibility with cetylpyridinium chloride Precipitated silica comprising porous silica particles having a cumulative surface area for all pores having diameters greater than 500 Å of less than 6 m2/g, as measured by mercury intrusion, and a percentage cetylpyridinium chloride (% CPC) Compatibility ... | 07/03/2008 |
| 20080085232 | Method of preparing silica nanoparticles from siliceous mudstone There is provided a method of preparing silica (SiO2) nanoparticles from siliceous mudstone which is silica mineral sources, using a chemical reaction. The method of preparing silica nanoparticles from siliceous mudstone comprises: solving a silica constituen... | 04/10/2008 |
| 20080019898 | Highly-Structured Silica Having a Low Water Uptake, Preparation Method Thereof and Uses of Same The invention relates to a highly-structured precipitated silica having a low water uptake and high dispersibility in different pasty or solid matrices or media, elastomers or silicon, and to the preparation method thereof. The invention also relates to the use of said ... | 01/24/2008 |
| 20080019893 | Method For Manufacturing Metal Loading Carbon Material It is an object of the present invention to provide a new technical means capable of controlling a loading position for enabling the selection of the function and activity as a catalyst, an adsorption material and a reactive material or the like, and controlling the loa... | 01/24/2008 |
| 20070299203 | HYDROPHILIC SILICA FOR SEALANTS Hydrophilic precipitated silicas which combine a particularly low initial moisture content with low moisture absorption over time, a low tapped density and a low silanol group density, have the following physicochemical parameters: equilibrium moisture content (at 70% r... | 12/27/2007 |
| 20070275257 | Silica-Based Particles, Method of Producing the Same, Paint for Forming Coating Film and Coated To provide silica-based particles with a low refractive index, the hollow and spherical silica-based particles include porous materials or cavities inside an outer shell thereof by growing porous composite oxide particles (primary particles) adjusting a ratio of a quant... | 11/29/2007 |
| 20070181036 | Precipitated silica used as reinforcing filler for elastomers The invention relates to a novel process for the preparation of precipitated silica which can be used as a reinforcing filler for elastomers. The invention also relates to novel precipitated silicas in the form of powder, granules or, preferably, substantially spherical... | 08/09/2007 |
| 20070122332 | Preparation of silicate or glass in a furnace with burners immersed in a reducing medium The invention relates to a process for preparing a silicate of an element chosen from alkali metals, alkaline-earth metals or rare earths, comprising a reaction between silica and a sulfate of said element in a reactor equipped with at least one submerged burner within ... | 05/31/2007 |
| 20070034116 | Silica sols with controlled minimum particle size and preparation thereof Colloidal silica having an increased particle size and narrow particle size distribution is disclosed. A method for continuously producing the desired colloidal composition is disclosed comprising the steps of providing preformed silica particles having a surface area w... | 02/15/2007 |
| 20070020166 | Air filtration media comprising metal-doped precipitated silica materials The present invention relates generally to an environmental control unit for use in air handling systems that provides highly effective filtration of noxious gases (such as ammonia). Such a filtration system utilizes novel metal-doped precipitated silica materials to tr... | 01/25/2007 |
| 20060165581 | Highly dispersible silica for using in rubber The present invention relates to highly disperse precipitated silicas which exhibit an extremely high level of reinforcement of rubber vulcanizates, to a process for their preparation, and to their use as filler for rubber mixtures. ... | 07/27/2006 |
| 20060150860 | Alkali-resistant cocoon-shaped colloidal silica particle and process for producing the same The invention provides a highly alkali resistant colloidal silica while retaining an excellent cocoon-shape and excellent performance as abrasive particles, and a process for the manufacture thereof. It is a cocoon-shaped colloidal silica prepared by hydrolyzing and con... | 07/13/2006 |
| 20060118490 | Mesoporous inorganic oxide spheres and method of making same A method of preparing mesoporous inorganic oxide spherical particles includes providing a reaction mixture capable of producing mesoporous inorganic oxide spheres; heating the reaction mixture to produce mesostructured inorganic oxide particles and removing organic mate... | 06/08/2006 |
| 20060100344 | Highly dispersible precititated silica The present invention relates to a highly disperse precipitated silica which has a high surface area, to a process for preparing it, and to its use as a tire filler for commercial vehicles, motorbikes, and high-speed vehicles. ... | 05/11/2006 |
| 20060084707 | Methods for manufacture of aerogels Embodiments of the present invention describe a method for producing gel beads comprising: depositing catalyzed sol droplets comprising a gel precursor into a moving dispensing medium, said medium being immiscible with the sol, and allowing gelation of the sol to occur ... | 04/20/2006 |
| 20060051279 | Process for production of silica from olivine A process for producing from olivine precipitated silica with controlled specific surface area and high degree of purity. The process comprises adding olivine in a controlled manner to a heated mineral acid solution; after separating undissolved olivine and filtering th... | 03/09/2006 |
| 20050228106 | Methods for synthesizing precipitated silica and use thereof The synthesis of precipitated silica having improved chemical and physical properties of use as a reinforcing filler in polymeric matrices is described. Improvements in the properties result from the synthesis of the silica al a reduced ionic strength. In particular, th... | 10/13/2005 |
