| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 502170000 | With metal carboxylate or metal compound and carboxylic acid or anhydride | 26 |
| 20080287289 | HALIDE FREE PRECURORS FOR CATALYSTS - The present invention addresses at least four different aspects relating to catalyst structure, methods of making those catalysts and methods of using those catalysts for making alkenyl alkanoates. Separately or together in combination, the various aspects of the invention are directed at improving the production of alkenyl alkanoates and VA in particular, including reduction of by-products and improved production efficiency. A first aspect of the present invention pertains to a unique palladium/gold catalyst or pre-catalyst (optionally calcined) that includes rhodium or another metal. A second aspect pertains to a palladium/gold catalyst or pre-catalyst that is based on a layered support material where one layer of the support material is substantially free of catalytic components. A third aspect pertains to a palladium/gold catalyst or pre-catalyst on a zirconia containing support material. A fourth aspect pertains to a palladium/gold catalyst or pre-catalyst that is produced from substantially chloride free catalytic components. | 11-20-2008 |
| 20090062111 | Transparent, Stable Titanium Dioxide Sols - A method of preparing stable, transparent photocatalytic titanium dioxide sots is disclosed which involves thermal treatment of a suspension of amorphous titanium dioxide in the presence of certain alpha-hydroxy acids. The sots comprise titanium dioxide particles in the anatase form having a crystallite size less than about 10 nm and exhibit excellent stability and transparency at basic, neutral, and acid pH. | 03-05-2009 |
| 20090082196 | HIGHLY ACTIVE PHOTOCATALYST PARTICLES, METHOD OF PRODUCTION THEREFOR, AND USE THEREOF - A method of producing composite particles of titanium dioxide and a compound inactive as a photocatalyst, comprising the steps of preparing a water based slurry of pH 3 to 5 comprising titanium dioxide, preparing a water based solution comprising a compound inactive as a photocatalyst, and reacting the slurry and the water based solution together at a pH within a range from 4 to 10 is provided, together with highly active photocatalyst particles produced using such a method, and potential uses of such photocatalyst particles. | 03-26-2009 |
| 20090305878 | ZIRCONIUM OXALATE SOL - A sol of the present invention is a sol comprising zirconium oxalate compound as a dispersoid, wherein a mol ratio of oxalic acid to Zr (oxalic acid/Zr) is from 1.2 to 3 and a particle diameter D50 of the dispersoid is from 10 to 100 nm. This sol is produced by adding oxalic acid to a dispersion liquid of zirconium hydroxide, and the addition of oxalic acid is carried out in twice. | 12-10-2009 |
| 20100113258 | Catalytically highly effective precious metal-carboxylate compounds of Ir, Ru, Rh, Pd, Pt and Au - The invention relates to a process for the production of noble metal carboxylate compounds, in which a noble metal is digested with at least one metal salt in a container and the digestion mass is dissolved in a carboxylic acid and the metallic ions introduced by the metal salt are separated from the resulting solution by means of oxalate or an oxalate derivative. | 05-06-2010 |
| 20100152029 | MULTIPLE-METAL COMPLEX-CONTAINING COMPOUND AND METAL COMPLEX, AND MANUFACTURE METHODS THEREFOR, AND EXHAUST GAS PURIFICATION CATALYST MANUFACTURE METHOD USING THE SAME - A multiple-metal complex-containing compound in accordance with an embodiment has a plurality of metal complexes in each of which a ligand is coordinated to one metal atom or a plurality of metal atoms of the same kind. The plurality of metal complexes are bound to each other via a polydentate ligand that substitutes partially the ligands of the two or more metal complexes, and have 2 to 1000 metal atoms. | 06-17-2010 |
| 20100222210 | CATALYSTS AND PROCESSES FOR SELECTIVE HYDROGENATION OF ACETYLENE AND DIENES IN LIGHT OLEFIN FEEDSTREAMS - A catalyst and a method for selective hydrogenation of acetylene and dienes in light olefin feedstreams are provided. The catalyst retains higher activity and selectivity after regeneration than conventional selective hydrogenation catalysts. The catalyst contains a first component and a second component supported on an inorganic support. The inorganic support contains at least one salt or oxide of zirconium, a lanthanide, or an alkaline earth. | 09-02-2010 |
| 20100234213 | TEMPLATED METAL OXIDE PARTICLES AND METHODS OF MAKING - Composite particles of a metal oxide particle within a crosslinked, cored dendrimer are described. Additionally, methods of making the composite particles and compositions that contain the composite particles are described. | 09-16-2010 |
| 20100267550 | Transparent, Stable Titanium Dioxide Sols - A method of preparing stable, transparent photocatalytic titanium dioxide sots is disclosed which involves thermal treatment of a suspension of amorphous titanium dioxide in the presence of certain alpha-hydroxy acids. The sots comprise titanium dioxide particles in the anatase form having a crystallite size less than about 10 nm and exhibit excellent stability and transparency at basic, neutral, and acid pH. | 10-21-2010 |
| 20100279854 | Hydroconversion Multi-Metallic Catalyst and Method for Making Thereof - A catalyst and a process for making a catalyst from a precursor composition containing rework materials are disclosed. The catalyst is made by sulfiding a catalyst precursor containing 5-95 wt. % rework material. The catalyst precursor employing rework materials can be a hydroxide or oxide material. Rework can be materials generated in the forming or shaping of the catalyst precursor, or formed upon the breakage or handling of the shaped catalyst precursor. Rework can also be in the form of catalyst precursor feed material to the shaping process, e.g., extrusion process, or catalyst precursor material generated as reject or scrap in the shaping process. In some embodiment, rework may be of the consistency of shapeable dough. In another embodiment, rework is in the form of small pieces or particles, e.g., fines, powder. | 11-04-2010 |
| 20100279855 | Hydroconversion Multi-Metallic Catalyst and Method for Making Thereof - A stable catalyst with low volumetric shrinkage and a process for making the stable catalyst with low volumetric shrinkage is disclosed. The catalyst is made by sulfiding a catalyst precursor containing at least a Group VIB metal compound; at least a promoter metal compound selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, having an oxidation state of either +2 or +4; optionally at least a ligating agent; optionally at least a diluent. In the process of making the catalyst, the catalyst precursor is first shaped then heat treated at a temperature of 50° C. to 200° C. for about 15 minutes to 12 hours, wherein the catalyst precursor still has a low (less than 12%) volumetric shrinkage after exposure to a temperature of at least 100° C. | 11-04-2010 |
| 20100279856 | Hydroconversion Multi-Metallic Catalyst and Method for Making Thereof - A method for preparing a bulk multi-metallic suitable for hydrotreating heavy oil feeds is provided. In the process of preparing the catalyst precursor which is subsequently sulfided to form the bulk catalyst, non-agglomerative drying is employed to keep the catalyst precursor from aggregating/clumping, resulting in a catalyst precursor with optimum porosity with at least 90% of the pores being macropores, and having a total pore volume of at least 0.08 g/cc. | 11-04-2010 |
| 20100304962 | SAFE COMBUSTION ADDITIVE AND METHODS OF FORMULATION - A safe, metal-containing combustion additive and a method of formulation is directed for use in connection with utility and industrial furnaces. The additive includes a metal-containing catalyst, a ligand for complexing with the catalyst and a solvent for carrying the catalyst/ligand complex. The vapor pressure of the additive is less than about 200×10 | 12-02-2010 |
| 20110183838 | TRANSPARENT, STABLE TITANIUM DIOXIDE SOLS - A method of preparing stable, transparent photocatalytic titanium dioxide sots is disclosed which involves thermal treatment of a suspension of amorphous titanium dioxide in the presence of certain alpha-hydroxy acids. The sots comprise titanium dioxide particles in the anatase form having a crystallite size less than about 10 nm and exhibit excellent stability and transparency at basic, neutral, and acid pH. | 07-28-2011 |
| 20110201494 | SHAPED HETEROGENEOUS CATALYSTS - A catalyst unit is described in the form of a cylinder having a length C and diameter D, which has one or more holes extending therethrough, wherein said cylinder has domed ends of lengths A and B, such that (A+B+C)/D is in the range 0.50 to 2.00, and (A+B)/C is in the range 0.40 to 5.00. The catalyst or catalyst unit preferably has one or more flutes miming along its length. The catalyst may be used particularly in steam reforming reactors. | 08-18-2011 |
| 20110301021 | PROMOTED ZIRCONIUM OXIDE CATALYST SUPPORT - A polyacid-promoted, zirconia catalyst or catalyst support having a high crush strength, surface area and pore volume is described. The polyacid-promoted, zirconia catalyst or catalyst support may be made by combining a zirconium compound with a polyacid/promoter material that includes the group 6 metals (i.e., chromium (Cr), molybdenum (Mo), tungsten (W)), as well as phosphoric acids, sulfuric acids, and polyorganic acids. The zirconyl-promoter precursor may be extruded in the absence of any binder or extrusion aid. The polyacid-promoted, zirconia catalyst or catalyst support is hydrothermally stable in aqueous phase hydrogenation or hydrogenoloysis reactions. | 12-08-2011 |
| 20120071318 | EXHAUST GAS-PURIFYING CATALYST - An exhaust gas-purifying catalyst includes a substrate, and a catalytic layer facing the substrate and including a precious metal, alumina, an oxygen storage material, and a sulfate of an alkaline-earth metal having an average particle diameter falling within a range of 0.01 to 0.70 μm, the average particle diameter being obtained by observation using a scanning electron microscope. Another exhaust gas-purifying catalyst includes a substrate, and a catalytic layer formed on the substrate using slurry containing a precious metal, alumina, an oxygen storage material, and a sulfate of an alkaline-earth metal having an average particle diameter falling within a range of 0.01 to 0.70 μm, the average particle diameter being obtained by observation using a scanning electron microscope. | 03-22-2012 |
| 20120129684 | USE OF A POROUS CRYSTALLINE HYBRID SOLID AS A NITROGEN OXIDE REDUCTION CATALYST AND DEVICES - The present invention relates to the use of solids consisting of a metal-organic framework (MOF) and having the units of the following formula (I): MmOkXILp as a nitrogen-oxide catalyst. The present invention also relates to devices for enabling the implementation of said use. The nitrogen oxides in question are nitrogen monoxide and nitrogen dioxide, collectively referred to as NOx. The MOF solids of the present invention are advantageously capable of removing nitrogen oxides from a liquid or gaseous effluent, for example from water, from the exhaust gases of a vehicle, factory, workshop, laboratory, stored products, urban air vents, etc., without any reducing agent and at a low temperature. The DeNOx catalysis is a major issue for our societies. The invention can be used for reducing or even avoiding the consequences for public health of the toxic NOx gases resulting from human activity. | 05-24-2012 |
| 20120196742 | PRECIPITATED FILM AND FABRICATING METHOD THEREOF - A precipitated film and the fabricating method thereof are disclosed. The precipitated film includes a supporting layer having columnar crystals, and a functional layer formed on the supporting layer and having granular crystals. The precipitated film is fabricated by phase-changing one of two aqueous solutions, which are able to react with each other to form a solid precipitate inherently, into solid-state and then reacting with the other aqueous solution to form the precipitated film by a precipitation reaction. | 08-02-2012 |
| 20130274092 | CATALYST COMPOSITION - The disclosure provides a catalyst composition, including: a metal or metal compound; and an organic diacid metal salt. The metal includes titanium (Ti), stibium (Sb) or combinations thereof and the metal compound includes antimony oxide (Sb | 10-17-2013 |
| 20140031196 | FENTON REACTION CATALYST PRODUCED USING REDUCING ORGANIC SUBSTANCE AS RAW MATERIAL - To develop a Fenton reaction catalyst that can maintain divalent iron stably for a long period of time, can utilize trivalent iron or metallic iron, which is an inexpensive iron-supplying source, by converting into divalent iron, and is harmless to the human body and the environment, provided is a Fenton reaction catalyst, including, as an active component, a reaction product obtained by mixing a specific reducing organic substance (e.g., ascorbic acid, a polyphenol-containing plant component, or a plant dry distillation liquid component) with an iron-supplying source at a predetermined ratio in the presence of water. Also provided are a sterilization method, a pollutant degradation method, and a luminescence method based on chemiluminescence, which involve using the Fenton reaction catalyst. | 01-30-2014 |
| 20140235431 | EXHAUST GAS-PURIFYING CATALYST - An exhaust gas-purifying catalyst includes a substrate, and a catalytic layer facing the substrate and including a precious metal, alumina, an oxygen storage material, and a sulfate of an alkaline-earth metal having an average particle diameter falling within a range of 0.01 to 0.70 μm, the average particle diameter being obtained by observation using a scanning electron microscope. Another exhaust gas-purifying catalyst includes a substrate, and a catalytic layer formed on the substrate using slurry containing a precious metal, alumina, an oxygen storage material, and a sulfate of an alkaline-earth metal having an average particle diameter falling within a range of 0.01 to 0.70 μm, the average particle diameter being obtained by observation using a scanning electron microscope. | 08-21-2014 |
| 20140256539 | SILANOL CONDENSATION CATALYST, HEAT-CURABLE SILICONE RESIN COMPOSITION FOR SEALING PHOTOSEMICONDUCTORS AND SEALED PHOTOSEMICONDUCTOR USING SAME - A silanol condensation catalyst including at least the zirconium metal salt expressed by Formula (I) below (wherein n is an integer from 1 to 3; each R | 09-11-2014 |
| 20140274670 | CATALYTICALLY HIGHLY EFFECTIVE PRECIOUS METAL-CARBOXYLATE COMPOUNDS OF IR, RU, RH, PD AND AU - The invention relates to a process for the production of noble metal carboxylate compounds, in which a noble metal is digested with at least one metal salt in a container and the digestion mass is dissolved in a carboxylic acid and the metallic ions introduced by the metal salt are separated from the resulting solution by means of oxalate or an oxalate derivative. | 09-18-2014 |
| 20150011384 | METHOD OF MAKING HYDROPROCESSING CATALYST - A chelated hydroprocessing catalyst exhibiting low moisture is obtained by heating an impregnated, calcined carrier to a temperature higher than 200° C. and less than a temperature and for a period of time that would cause substantial decomposition of the chelating agent. | 01-08-2015 |
| 20150306591 | HIGH ACTIVITY HYDROTREATING CATALYSTS - This disclosure relates to supported multi-metallic catalysts for use in the hydrotreating of hydrocarbon feeds, as well as a method for preparing such catalysts. The catalysts are prepared from a catalyst precursor comprised of at least one Group VIB metal, at least one Group VIII metal and an organic acid. The catalyst precursor is thermally treated to partially decompose the organic acid, then sulfided. The catalysts have a high carbon-as-carboxyl to total carbon ratio (C | 10-29-2015 |
