| Patent Number |
Title Of Patent |
Date Issued |
| 5208006 |
Large-pored molecular sieves containing at least one octahedral site comprising titanium and at |
May 4, 1993 |
| Crystalline molecular sieves having large pores are disclosed having at least one octahedrally coordinated site comprising titanium and at least tetrahedrally coordinated silicon in the framework.Conversion of organic compounds and removal of ions from solutions are also disclosed. |
| 5202300 |
Catalyst for purification of exhaust gas |
April 13, 1993 |
| A catalyst composition comprising a refractory support having deposited thereon an active layer containing a platinum group metal component comprising an alumina component having the platinum group metals rhodium and palladium dispersed thereon, a cerium compound, a strontium compound, |
| 5196617 |
Method of hydrodehalogenating halogenated organic compounds in aqueous environmental sources |
March 23, 1993 |
| A process for hydrodehalogenating halogenated organic compounds present in a contaminated aqueous environmental source in which the halogenated organic compounds are reacted with hydrogen gas or a source of hydrogen gas in the presence of a catalyst of palladium on carbon. |
| 5196172 |
Apparatus for the fluid catalytic cracking of hydrocarbon feed employing a separable mixture of |
March 23, 1993 |
| The present invention features the use of a particulate sorbent and a particulate FCC catalyst, which are physically separable, sequentially in the same FCC riser, followed by separation of commingled spent catalyst and sorbent particles from vapors, and the subsequent primary partial |
| 5192547 |
Animal feed containing selected montmorillonite clay as additive and method for selecting the cl |
March 9, 1993 |
| A correlation is established between aflatoxin B1 binding on raw montmorillonite clays and the ratio of their surface acidities divided by their porosities for surface acid sites whose pKa values fall in the range 5.0-6.8 (i.e. weakly acidic) and porosities for pores whose diameters fall |
| 5192365 |
Buff rutile pigment compositions |
March 9, 1993 |
| Desirable buff rutile pigment compositions are described which comprise about 40 to about 55% by weight of titanium, from about 0.4 to about 5 parts by weight of cobalt, from about 7 to about 14% by weight of tungsten, from 0.01 to about 5 parts by weight of lithium and from about 0. |
| 5177268 |
Hydrodehalogenation of aromatic compounds |
January 5, 1993 |
| A process for hydrodehalogenating halogenated aromatics present in a contaminated aqueous environmental source in which the halogenated aromatics are reacted with hydrogen gas or a source of hydrogen gas in the presence of a basic proton acceptor and a catalyst of palladium on carbon. |
| 5173349 |
Thermal shock and creep resistant mullite articles prepared from topaz and process of manufactur |
December 22, 1992 |
| A process for forming a shaped article comprised of mullite whiskers comprising the following steps:a. preparing a mixture of aluminum fluoride and silicon dioxide in a weight ratio of about 7:3;b. firing the mixture in air at a temperature above about 750.degree. C. until complete conve |
| 5169443 |
Paper coating kaolin pigments there preparation and use |
December 8, 1992 |
| Paper coating pigments comprising mechanically delaminated kaolin particles. The pigments possess the opacification, smoothness and printability advantages of conventional delaminated kaolin pigments but have desirably low viscosity and gloss not characteristic of conventional delami |
| 5169300 |
Praseodymium-palladium binary oxide, catalyst, methods of combustion and regeneration |
December 8, 1992 |
| A novel praseodymium-palladium oxide compound has the formula Pr.sub.4 PdO.sub.7. The compound has utility as a catalyst for oxidation of combustion mixtures comprising oxygen (e.g., air) and gaseous carbonaceous fuels such as methane and displays excellent regeneration characteristics |
| 5166121 |
Catalytic compositions |
November 24, 1992 |
| A catalytic composite comprising a combination of catalytically effective amounts of a platinum component, optionally a second metal component such as tin or rhenium, and a halogen component with a porous carrier support material is disclosed. The platinum, second metal (if present) and |
| 5165946 |
Animal feed additive and method for inactivating mycotoxins present in animal feeds |
November 24, 1992 |
| A dry solid animal feed composition in which biodegradable feed is contaminated with a mycotoxin and is admixed with a mycotoxin inactivating agent comprising particles of a phyllosilicate mineral capable of inactivating mycotoxins, said particles being coated with a sequestering age |
| 5155086 |
Hydrogenation catalyst, process for preparing and process of using said catalyst |
October 13, 1992 |
| In one embodiment, the invention relates to a catalyst in powdered form which comprises a major amount of the oxides of copper and zinc, and a minor amount of aluminum oxide wherein the pore volume of pores of said catalysts having a diameter between about 120 and about 1000 .ANG. is at |
| 5154766 |
Method for controlling shade of hydrous kaolin pigments and products obtained therefrom |
October 13, 1992 |
| Novel hydrous kaolin pigments comprising a major weight percent of a conventional hydrous kaolin pigment and a minor amount of a specific form of added discrete iron oxide, specifically magnetite, uniformly physically admixed therewith. Pigments of the invention have brightness values of |
| 5152835 |
Composite titania-calcined kaolin opacifying pigments and method for making and using same |
October 6, 1992 |
| Novel titania-calcined kaolin composite pigments wherein structuring and adhesion of titania and calcined kaolin particles is achieved by use of a cationic polyelectrolyte. Methods for compositing titania and calcined kaolin pigments which feature the presence of at least one polyanionic |
| 5145825 |
Oxidation catalyst resistant to sulfation |
September 8, 1992 |
| A sulfur-resistant CO, hydrocarbon and SO.sub.x oxidation catalyst is provided comprising silica particles which have been coated with titania or zirconia or precursors thereof and which have deposited thereon a precious metal such as platinum. The coated silica catalyst can be inclu |
| 5145814 |
In situ method for producing hydrosulfite beach and use thereof |
September 8, 1992 |
| A process for reacting metallic iron with sulfur dioxide (SO.sub.2) gas in the presence of water and bleachable matter, especially iron-contaminated kaolin clay, whereby the kaolin or the like is bleached in situ. |
| 5139992 |
Three-way conversion catalyst including a ceria-containing zirconia support |
August 18, 1992 |
| A catalyst composition includes a zirconia support on which is dispersed a limited amount of ceria to provide a zirconia/dispersed ceria support, and a rhodium catalytic component. The ceria content of the zirconia support does not exceed about fifteen percent by weight based on the comb |
| 5134108 |
Process for preparing catalyst with copper or zinc and with chromium, molybdenum, tungsten, or v |
July 28, 1992 |
| This hydrogenation catalyst comprises a major amount of the oxides of a first metal selected from copper or zinc, a second metal selected from chromium, molybdenum, tungsten and vanadium, and optionally, a minor amount of the oxide of a promoter metal selected from the group consisting |
| 5128306 |
Palladium containing ceria-supported platinum catalyst and catalyst assembly including the same |
July 7, 1992 |
| A catalyst composition includes a catalytic material containing a platinum catalytic component dispersed on a bulk ceria and a palladium catalytic component; the palladium catalytic component may be dispersed either on the ceria or on another support, such as an activated alumina support |
| 5124295 |
Copper chromite catalyst and process for preparation said catalyst |
June 23, 1992 |
| In one embodiment,the invention relates to a formed copper chromite catalyst prepared from a blend comprising from about 20 to about 80% by weight of copper chromite and from about 20 to about 80% by weight of at least one extrudable inorganic binder material wherein the catalyst has a |
| 5112782 |
Cationically processed calcined kaolin clay |
May 12, 1992 |
| A method for producing a low abrasion calcined kaolin pigment which comprises forming an aqueous pulp of crude kaolin dispersing the pulp by adding thereto sufficient water-soluble organic cationic dispersant to impart a positive zeta potential to said particles and, preferably, an a |
| 5108730 |
Low temperatue light off ammonia oxidation |
April 28, 1992 |
| Method of low temperature start-up of ammonia oxidation plants by passing hydrogen and oxygen over platinum containing gauzes bearing a platinum coating having a surface area in excess of about 50 cm.sup.2 /g, thereby heating them to temperatures which are sufficient for catalytic oxidat |
| 5108606 |
Water purification device |
April 28, 1992 |
| An in-line water purification system where all the water from a supply to a faucet opening enters a filter cartridge further includes a flow restrictor placed at the end of a faucet and which can be placed in a position so as to reduce water volume through said filtering system to re |
| 5106485 |
Catalytic cracking of hydrocarbons with a mixture of zeolite L and zeolite Y |
April 21, 1992 |
| Hydrocarbons, particularly gas oil, are cracked to products boiling in the motor fuel range by using a catalyst mixture comprising zeolite Y and zeolite L. The catalyst of this invention results in obtaining a fuel having an increased octane number and suffering a smaller penalty with |
| 5102639 |
Praseodymium-palladium binary oxide, catalyst compositions containing the same, and methods of u |
April 7, 1992 |
| A novel praseodymium-palladium oxide compound has the formula Pr.sub.4 PdO.sub.7. The compound has utility as a catalyst for oxidation of combustion mixtures comprising oxygen (e.g., air) and gaseous carbonaceous fuels such as methane and displays excellent regeneration characteristics |
| 5100632 |
Catalyzed diesel exhaust particulate filter |
March 31, 1992 |
| A self-cleaning diesel exhaust particulate filter is disclosed wherein burn-off of collected particulate matter is accomplished at certain exhaust gas temperatures, the filter being provided with a catalyst mixture consisting essentially of a platinum group metal and an alkaline eart |
| 5082814 |
Shell-coated FCC catalysts |
January 21, 1992 |
| 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 (preferably silica) having a particle size |
| 5080718 |
Inorganic pigments of the empirical formula A.sub.x B.sub.y C.sub.z |
January 14, 1992 |
| A pigment of irregular-shaped particles is described which comprises crystallites of the empirical formula A.sub.x B.sub.y C.sub.z wherein A and B are different; A is cobalt, nickel, copper, zinc, cadmium, iron, manganese or any combination thereof; B is aluminum, chromium, molybdenum, |
| 5071804 |
Ion-exchange agent and use thereof in extracting heavy metals from aqueous solutions |
December 10, 1991 |
| A novel ion-exchange agent, an aluminum-enriched analogue to the zeolite chabazite, hereinafter "Al-Chab" is disclosed. The Al-Chab is used in processes for recovering precious metals from aqueous solutions or for removing toxic heavy metals from contaminated aqueous streams. |
| 5071539 |
FCC catalysts of increased effective heat capacity |
December 10, 1991 |
| A catalytic composition for use in fluid catalytic cracking has an effective heat capacity of at least about 0.29 BTU/lb. .degree.F. over the range from 950.degree. F. to 1300.degree. F. The composition may include microspheres containing in situ crystallized Y-faujasite and fluidizable |
| 5061461 |
Cationic processing of kaolin ores |
October 29, 1991 |
| A method for recovering a fine particle size fraction of a negatively charged mineral from an ore, such as a kaolin clay crude, which comprises forming an aqueous pulp of the ore, dispersing the pulp by adding thereto sufficient water-soluble organic cationic dispersant to impart a posit |
| 5059302 |
Method and apparatus for the fluid catalytic cracking of hydrocarbon feed employing a separable |
October 22, 1991 |
| The present invention features the use of a particulate sorbent and a particulate FCC catalyst, which are physically separable, sequentially in the same FCC riser, followed by separation of commingled spent catalyst and sorbent particles from vapors, and the subsequent primary partial |
| 5057483 |
Catalyst composition containing segregated platinum and rhodium components |
October 15, 1991 |
| A catalyst composition suitable for three-way conversion of internal combustion engine, e.g., automobile gasoline engine, exhaust gases includes a catalytic material disposed in two discrete coats on a carrier. The first coat includes a stabilized alumina support on which a first pla |
| 5053139 |
Removal of heavy metals, especially lead, from aqueous systems containing competing ions utilizi |
October 1, 1991 |
| A process for the removal of heavy metals such as lead, cadmium, zinc, chromium, arsenic and mercury from aqueous solutions containing one or more of said metals as well as competing ions such as calcium and/or magnesium by contacting said aqueous solution with amorphous titanium or |
| 5035793 |
Hydrotreating catalyst and process |
July 30, 1991 |
| A hydrotreating catalyst is described which comprises at least one Group VI metal, metal oxide, or metal sulfide, and at least one Group VIII metal, metal oxide, or metal sulfide, supported on a carrier wherein (A) the catalyst comprises from about 10% to about 35% by weight of combined |
| 5024981 |
Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides us |
June 18, 1991 |
| A zeolite catalyst composition is provided in which a first or upstream zone of the catalyst has a lower metal (e.g., iron or copper) promoter loading than the metal promoter loading of the second or downstream zone of the catalyst. The first zone may contain from none up to about 1 |
| 5023276 |
Preparation of normally liquid hydrocarbons and a synthesis gas to make the same, from a normall |
June 11, 1991 |
| A process for preparing a hydrogen and carbon monoxide containing synthesis gas for hydrocarbon synthesis includes autothermally reforming a natural gas (CH.sub.4) feed with oxygen, steam and recycled carbon dioxide and, optionally, recycled hydrocarbon by-products from the hydrocarbon |
| 5023220 |
Ultra high zeolite content FCC catalysts and method for making same from microspheres composed o |
June 11, 1991 |
| A method for increasing the zeolite content of high zeolite content clay derived microspheres obtained by reacting porous precursor microspheres with a sodium silicate solution in the presence of seeds to crystallize zeolite Y in situ in macropores of precursor microspheres composed of a |
| 5011667 |
Self-bound sodium chabazite aggregates and methods for preparation thereof |
April 30, 1991 |
| A process for making self-bound monolithic bodies of chabazite by mixing finely divided chabazite and a sodium aluminosilicate gel into monolithic bodies, the gel having a molar ratio of silica to aluminum between 1.0 and 1.5 and a molar ratio of sodium to silica from 0.35 to 0.55, and h |
| 5011591 |
Large-pored crystalline titanium molecular sieve zeolites |
April 30, 1991 |
| New crystalline titanium molecular sieve zeolite compositions having a pore size of about 8 Angstrom Units are disclosed together with methods for preparing the same and organic compound conversions. |
| 5011534 |
Calcined kaolin clay filler pigment for enhancing opacity and printing properties of newsprint a |
April 30, 1991 |
| A low-abrasion calcined kaolin opacifying pigment composed of particles in the size range of about 70 to 84% by weight finer than 2 microns and having a color defined by Hunter Trisitimulus values of "L" within the range of 92 to 94, "a" within the range of .sup.+ 1.0 to .sup.+ 2.2 and |
| 5010051 |
Staged three-way conversion catalyst and method of using the same |
April 23, 1991 |
| A catalyst composition has an upstream stage and a downstream stage, the upstream stage containing a catalytic material which is different from the catalytic material contained on the downstream stage and is characterized by having a low ignition temperature, e.g., 350.degree. C. to less |
| 5008227 |
Process for making acid activated bleaching earth using high susceptibility source clay and nove |
April 16, 1991 |
| A process for making acid-activated bleaching earth from a crude attapulgite clay. A crude is selected which is mildly acidic and contains at least about 90% attapulgite. The process involves treating such clay with low levels of activating acid which are mixed with the dried and gro |
| 5008226 |
Process for making acid activated bleaching earth using high susceptibility source clay and nove |
April 16, 1991 |
| A process for making acid-activated bleaching earth from certain naturally occurring mixtures of calcium bentonite and attapulgite clay. The process involves treating such clay with low levels of activating acid which are mixed with the dried and ground clay, or spray dried from slurries |
| 5006574 |
Cationcally dispersed slurries of calcined kaolin clay |
April 9, 1991 |
| A stable fluid acidic concentrated aqueous slurry of positively charged particles of a calcined kaolin clay pigment wherein the dispersant is a water-soluble organic cationic material, such as a quarternary ammonium polyelectrolyte. |
| 5006175 |
High infra red reflecting brown rutile pigment compositions |
April 9, 1991 |
| Desirable high infra red reflecting brown rutile pigment compositions are described which comprise from about 40 to about 50% by weight of titanium, from about 2.3 to about 4.5% by weight of manganese, from about 7.3 to about 11% by weight of tungsten, from 0.05 to about 5% of lithium an |
| 5001598 |
Sinter control additive |
March 19, 1991 |
| A sinter control material which is added to silver or palladium silver powders used for internal electrodes within multilayer ceramic capacitors is described. Iridium and rhodium resinates are disclosed as the additives. |
| 5000850 |
Apparatus for dewatering an aqueous clay suspension |
March 19, 1991 |
| Apparatus is provided for dewatering an aqueous clay suspension by a process which includes preparing a partly dewatered filter cake and concurrently compressing the partly dewatered filter cake on a filtration drum while applying vacuum suction to it from inside the drum, and then r |
| 4994191 |
Removal of heavy metals, especially lead, from aqueous systems containing competing ions utilizi |
February 19, 1991 |
| A process for the removal of heavy metals such as lead, cadmium, zinc, chromium, arsenic and mercury from aqueous solutions containing one or more of said metals as well as competing ions such as calcium and/or magnesium by contacting said aqueous solution with a crystalline molecular |
