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| Number | Title | Issue Date |
| 7361209 | Apparatus and process for preparing sorbents for mercury control at the point of use A system for treating a contaminated gas stream is provided that includes a comminution device 204 operable to effect size reduction of a plurality of sorbent particles and form a plurality of comminuted particles, a plurality of nozzles 224 distribute... | 04/22/2008 |
| 7351679 | Fischer-tropsch catalyst, preparation, and use thereof Embodiments include a catalyst for use in a Fischer-Tropsch synthesis reaction which comprises cobalt supported on alumina. In some embodiments, the alumina support may have specific surface area of less than 50 m2/g and/or may be least 10% α-alumina. | 04/01/2008 |
| 7341977 | Method of sorbing sulfur compounds using nanocrystalline mesoporous metal oxides Compounds and methods for sorbing organosulfur compounds from fluids are provided. Generally, compounds according to the present invention comprise mesoporous, nanocrystalline metal oxides. Preferred metal oxide compounds either exhibit soft Lewis acid properties or... | 03/11/2008 |
| 7335618 | Method for manufacturing hydrorefining catalyst, and metal recovery method A heavy oil is hydrorefined using a hydrorefining catalyst. A spent hydrorefining catalyst whose activity has decreased is heat treated (S1) and pulverized to obtained a regenerated powder (S2). This regenerated powder is fractionated according to its ... | 02/26/2008 |
| 7288504 | Method for producing spherical activation carbon Disclosure is made of a specific process for producing activated carbon in spherical form, starting with organic polymer spherules based on styrene and divinylbenzene, wherein said polymer spherules contain chemical groups leading to the formation of free radicals a... | 10/30/2007 |
| 7256156 | Reactive-adsorptive protective materials and methods for use A reactive-adsorptive protective material having an activated carbon adsorbent, including those manufactured from a gel-type ion exchange resin. The activated carbon adsorbent has adsorptive properties for adsorbing chemical impurities. The activated carbon is wettl... | 08/14/2007 |
| 7198867 | Electrochemical generation, storage and reaction of hydrogen and oxygen An electrolytic apparatus for using catalyst-coated hollow microspheres to produce gases, store them, and to make them available for later use. The apparatus uses catalyst-coated hollow microspheres in reversible electrochemical processes and reactions, such as thos... | 04/03/2007 |
| 7186329 | High-macropore hydroprocessing catalyst and its use The present invention pertains to a catalyst comprising 7–20 wt. % of a Group VIB metal component, calculated as trioxide on the weight of the catalyst, and 0.5 to 6 wt. % of a Group VIII metal component, calculated as oxide on the weight of the catalyst, on a por... | 03/06/2007 |
| 7169727 | Process for forming a ziegler-natta catalyst system having a controlled morphology A pre-catalyst is formed by reacting butylethylmagnesium with an alcohol to form a magnesium alkoxide compound, followed by contacting the magnesium alkoxide compound with a phosphorous compound to form a magnesium alkoxide phosphorous compound mixture. The magnesiu... | 01/30/2007 |
| 7014689 | Body for isolating a constituent contained in a gas mixture The invention relates to bodies for separating out a component contained in a gas mixture. The gas mixtures may, for example, be crude gases which contain hydrocarbons, such as natural gas, or exhaust gas. According to the object which is set, the bodies according t... | 03/21/2006 |
| 6958085 | High performance immobilized liquid membrane for carbon dioxide separations An immobilized liquid membrane has a substrate. A plurality of capsules is disposed on the substrate. Each of the capsules is permeable to a first gas of a mixture of gasses comprising the first gas and a second gas. Each of the capsules is substantially impermeable... | 10/25/2005 |
| 6376404 | Process for the production of shaped high-performance adsorbents The invention relates to the production of shaped high-performance adsorbents by steam activation in a rotary tunnel kiln operating in batches, in which spherically pre-formed materials are carefully pre-dried in a rotary tunnel dryer with 4-fold product ... | 04/23/2002 |
| 6316378 | Process for the production of shaped activated carbon The invention relates to a process for the production of shaped activated carbon by steam activation in an continuously operating rotary tunnel kiln, by continuously drying spherically preformed raw materials in a rotary tunnel dryer with 6-fold product t... | 11/13/2001 |
| 6184177 | Method of producing activated carbon particles from spent granular organic ion-exchange resin A method of processing spent ion-exchange resins contaminated with suspended particles, inorganic residues and/or organic foreign matter so as to render the resin ineffective for continued use, by which method this waste material can be processed to produ... | 02/06/2001 |
| 6150300 | Process to produce sorbents A process to produce a sorbent is provided. This process comprises: mixing a composition that comprises silica, a composition that comprises metal oxide, and a composition that comprises zinc oxide, to form a first mixture; and sphering said first mixture... | 11/21/2000 |
| 5976478 | Low density silica particles and method for their preparation Internal porosity is created in dense SiO2 particles by heating a mixture of the particles with B2 O3 at a temperature above about 450° C. Resulting SiO2 particles have altered morphology, internal porosity, an... | 11/02/1999 |
| 5879647 | Method for the preparation of fine globular particles of yttrium oxide An improvement is proposed in the so-called urea method for the preparation of fine particles of yttrium oxide, according to which, while an aqueous reaction mixture containing a water-soluble yttrium salt, e.g., nitrate, and urea dissolved therein in spe... | 03/09/1999 |
| 5861134 | Low density silica particles and method for their preparation Internal porosity is created in dense SiO2 particles by heating a mixture of the particles with B2 O3 above the melting point of both mixture components. Resulting SiO2 particles have altered morphology, interna... | 01/19/1999 |
| 5821186 | Method for preparing hydrous titanium oxide spherules and other gel forms thereof The present invention are methods for preparing hydrous titanium oxide spherules, hydrous titanium oxide gels such as gel slabs, films, capillary and electrophoresis gels, titanium monohydrogen phosphate spherules, hydrous titanium oxide spherules having ... | 10/13/1998 |
| 5580838 | Uniformly plated microsphere catalyst Cross-linked polymer microspheres having a sulfonated cation exchange surface are carefully separated into fractions of equal size and density. Each fraction is separately plated preferably with copper, palladium, nickel, titanium or any metal cation whic... | 12/03/1996 |
| 5453260 | Amorphous silica or silica-alumina spherical particles and process for preparation thereof Disclosed are amorphous silica or silica-alumina spherical particles composed of X-ray diffractometrically substantially amorphous silica or silica-alumina, wherein individual particles have a definite spherical shape and a notched surface, the circularit... | 09/26/1995 |
| 5348924 | Zeolite aggregates and catalysts A process for producing zeolite aggregates involves providing a formable paste composed of zeolite, a binder composed of an organic/metal oxide containing aluminum, a peptizing agent and water; forming the paste into an aggregate, preferably by extruding ... | 09/20/1994 |
| 5302566 | Process for preparing attrition resistant catalysts A process is described for preparing attrition resistant catalyst, particularly vanadium/phosphorus oxide catalyst, having an oxide rich surface layer. The oxide rich surface layer is obtained from a stable oxide-forming mixture which contains both colloi... | 04/12/1994 |
| 5286370 | Catalytic cracking using a layered cracking catalyst A layered catalyst contains a core of at least one, and preferably three, molecular sieve components within a shell layer of reduced molecular sieve content. A preferred catalyst consists of a core of a large pore molecular sieve, preferably a dealuminize... | 02/15/1994 |
| 5236683 | Amorphous silica spherical particles Disclosed are amorphous silica or silica-alumina spherical particles composed of X-ray diffractometrically substantially amorphous silica or silica-alumina, wherein individual particles have a definite spherical shape and a notched surface, the circularit... | 08/17/1993 |
| 5228980 | Fluidized catalytic cracking process employing shell-coated FCC catalysts A novel shell-coated FCC catalyst is disclosed wherein the shell is a mixture of at least one refractory metal oxide or silicate or precursor thereof (preferably clay) having a particle size of 0.3 to 5 microns and an inorganic refractory binder (preferab... | 07/20/1993 |
| 5225123 | Methods for producing hollow microspheres made from dispersed particle compositions Method for making hollow microspheres of substantially uniform diameter and of substantially uniform wall thickness is disclosed. The walls of the hollow microspheres comprise sintered together particles which define interconnecting voids within the walls... | 07/06/1993 |
| 5215949 | Method and equipment for the preparation of a carrier of a polymerization catalyst In conventional spraying methods the problem in the preparation of small carrier particles aimed for the polymerization is that the drops constituting the prestages of the particles agglomerate or form otherwise in different sizes, whereby the size distri... | 06/01/1993 |
| 5145578 | Packing material for liquid chromatography A packing material for liquid chromatography, comprising a spherical clay mineral powder which comprises a naturally occurring or synthetic water-swellable clay mineral, a clay mineral having foreign cations substantially substituted for interlayer ions i... | 09/08/1992 |
| 5139980 | Method for production of inorganic oxide particles A method for the production of inorganic oxide particles by a procedure comprising the steps of dispersing inorganic oxide particles as seed particles in a water-containing alcohol solution thereby preparing a suspension of said seed particles and adding ... | 08/18/1992 |
| 5106804 | Catalyst and prepolymer used for the preparation of polyolefins The present invention relates to a solid catalyst suitable for polymerizing olefins in a heterogeneous process, the catalyst consisting of spheroidal particles having a narrow particle size distribution and comprising (i) a support containing magnesium di... | 04/21/1992 |
| 5098875 | Process for preparing a Ziegler-Natta type catalyst The present invention relates to a process for preparing a Ziegler-Natta type catalyst based on a vanadium compound. The process comprises sequentially contacting within a liquid hydrocarbon a spheroidal support comprising (i) MgCl2 free from a... | 03/24/1992 |
| 5082814 | Shell-coated FCC catalysts A novel shell-coated FCC catalyst is disclosed wherein the shell is a mixture of at least one refractory metal oxide or silicate or precursor thereof (preferably clay) having a particle size of 0.3 to 5 microns and an inorganic refractory binder (preferab... | 01/21/1992 |
| 5036031 | Metal plated microsphere catalyst Cross-linked polymer microspheres are carefully separated into fractions of equal size and density by first using sieves and then using hydraulic separation in a cone. Each fraction is separately plated with copper. The copper plated microspheres are agai... | 07/30/1991 |
| 5032560 | Ziegler-natta catalyst A Zeigler-Natta type catalyst suitable for polmerizing propylene comprising a preactivated support coated with 0.1 to 10 g of homopolymer or copolymer of propylene. The preactivated support which comprises magnesium chloride and 1 to 20% by mol of an elec... | 07/16/1991 |
| 4994422 | Microspheres coated with catalyst and methods of producing same Means and methods of producing catalytically coated microspheres of hydrocarbon fuel in a tower into which precharged free floating initially frozen globules of hydrocarbon fuel are drawn through a catalytic plasma field by an attracting electrostatic for... | 02/19/1991 |
| 4983369 | Process for forming highly uniform silica spheres A process for producing highly uniform microspheres of silica having an average diameter of 0.1-10 μm from the hydrolysis of a silica precursor, such as tetraalkoxysilanes, which is characterized by employing precursor solutions and feed rates which init... | 01/08/1991 |
| 4960741 | Ziegler-Natta catalyst A process of the Ziegler-Natta type is prepared using a preactivated support containing (A) from 80 to 95 mol % of magnesium chloride and (B) 5 to 20 mol % of at least one electron donor compound which contains no labile hydrogen and no ester function; th... | 10/02/1990 |
| 4956322 | Improvements to solid granular catalysts, process for their preparation The invention relates to a solid granular catalyst subject to degradation by exposure to humidity and/or oxygen, wherein each granule of the catalyst is coated with a continuous and removable protective film of a material that is impermeable to gases and ... | 09/11/1990 |
| 4895816 | Support material containing catalyst for fixed hydrofining beds A fixed catalyst bed comprises: (a) a support layer of substantially spherical alumina-containing particles containing about 0-2 weight-% of a promoter element, said particles having been prepared by heating an alumina-containing starting material at a te... | 01/23/1990 |
