Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7285698 | Method for manufacturing alkylate oil with composite ionic liquid used as catalyst The present invention pertains to a method for manufacturing alkylate oil using a composite ionic liquid as catalyst. A mixture of isobutane and C4 olefins is used as the raw material, and a composite ionic liquid is used as catalyst to carry out an alkylation react... | 10/23/2007 |
| 7225621 | Organic working fluids The present invention provides an improved, commercially available organic working fluid, which is operable under a broad range of temperatures, is thermally stable, has a high auto-ignition temperature, low freezing point and high critical temperature and is benign... | 06/05/2007 |
| 7199068 | Reactive distillation alkylation process including in situ catalyst regeneration A unified process which couples a unique in situ catalyst regeneration process with a continuous reactive distillation under pressure for the alkylation of light aromatic hydrocarbons such as benzene with C2–C30 olefins using a solid acid alk... | 04/03/2007 |
| 7132582 | Catalytic process for the preparation of isolongifolene The present invention relates to a catalytic process for preparation of isolongifolene using nanocrystalline solid super acid. This process is an eco-friendly, single step, solvent free catalytic process for the preparation of a tricyclic sesqui-terpene hydrocarbon,... | 11/07/2006 |
| 6613507 | Boraadamantane compounds for the treatment of pathogenic viruses and other medical applications Methods for treating patients with viral infections and Parkinson's disease with pharmaceutical agents are disclosed. In one embodiment, the viruses are Hepatitis C, Influenza A and B. The Pharmaceutical agents are 1-boraadamantane and the conjugate amine... | 09/02/2003 |
| 6426441 | Method for reducing organic fluoride levels in hydrocarbons A system and/or process for decreasing the level of at least one organic fluoride present in a hydrocarbon mixture by first passing the hydrocarbon mixture to an eductor and educting into the hydrocarbon mixture a catalyst comprising a volatility reducing... | 07/30/2002 |
| 6262327 | Process for alkylation of isoparaffin with olefin A process for alkylation of an isoparaffin with an olefin comprising contacting an isoparaffin containing feed with an olefin-containing feed in the presence of a catalyst, said catalyst is a supported heteropoly acid catalyst, which is represented by the... | 07/17/2001 |
| 5948947 | Alkylation process with separate rejection of light and heavy acid soluble oils An HF-agent complex, such as HF-pyridine complex where the complexing agent is pyridine, is recovered and recycled from a by-product stream containing ASO, and ASO is rejected from the by-product stream, in an alkylation process using the complex.... | 09/07/1999 |
| 5859305 | Method for optimizing hydrogen fluoride alxylation and increasing process safety A method of regulating the concentration of onium in a liquid onium poly(hydrogen fluoride) composition utilized in a hydrogen fluoride catalyzed alkylation reaction for a given level of total airborne hydrogen fluoride is disclosed. Also disclosed is a m... | 01/12/1999 |
| 5663474 | Alkylation process using hydrogen fluoride-containing alkylation catalysts This invention relates to catalysts for alkylation reactions and their preparation. More particularly, the invention relates to an alkylation process using a hydrogen fluoride-containing alkylation catalyst, which catalyst may be safely and easily handled... | 09/02/1997 |
| 5583049 | Control of low inventory alkylation unit A method and system for controlling an HF alkylation system comprising a reactor, a settler, an HF acid regenerator and a source of fresh HF acid wherein a stream of olefins and a stream of isobutanes are contacted in the reactor in the presence an HF aci... | 12/10/1996 |
| 5475178 | Supported heteropoly acid catalysts There is provided a catalyst comprising a heteropoly acid, such as phosphotungstic acid, supported on a mesoporous crystalline material, such as M41S. A particular form of this M41S support is designated as MCM-41. There is also provided a method for prep... | 12/12/1995 |
| 5457257 | Isoparaffin/olefin alkylation with minimal acid inventory A process for alkylating an isoparaffin with an olefin in the presence of a catalyst comprising HF, BF3, and a hydroxylic promoter wherein the total acid dosage as defined herein is less than about 1 weight percent of the total hydrocarbon reac... | 10/10/1995 |
| 5407830 | Control of low inventory alkylation unit A method and system for controlling an HF alkylation system comprising a reactor, a settler, an HF acid regenerator and a source of fresh HF acid wherein a stream of olefins and a stream of isobutanes are contacted in the reactor in the presence an HF aci... | 04/18/1995 |
| 5396018 | Method of recovery acid catalyst from acid catalyzed processes Process for the recovery of acid catalyst from acid catalyzed hydrocarbon conversion processes comprising the steps of: passing a product stream of converted hydrocarbons leaving the hydrocarbon conversion process and containing the acid catalyst through ... | 03/07/1995 |
| 5396017 | Alkylation process A process for the alkylation of hydrocarbon feedstock with an olefinic alkylating agent in the presence of a hydrogen fluoride catalyst, wherein the hydrogen fluoride catalyst is supported on a support material comprising a solid material with a Hammett a... | 03/07/1995 |
| 5371314 | Catalytic isoparaffin-olefin alkylation with HF and a low donicity solvent The invention provides an isoparaffin-olefin alkylation catalyst composition comprising from about 5 to about 95 weight percent hydrofluoric acid, from about 5 to about 95 weight percent of a solvent having a Donor Number of less than about 40 and from ab... | 12/06/1994 |
| 5362446 | Containment of an aerosolable liquid jet A method of increasing rainout from a liquid jet of an aerosolable corrosive and toxic substance, e.g. hydrogen fluoride, hydrofluoric acid, ammonia or chlorine, exiting from a pressurized source, such as a vessel, conduit, pump. The method includes spaci... | 11/08/1994 |
| 5326924 | Alkylation aid Alkylation processes of the type used in the refining of petroleum can be improved by using a promoter composition which contains an alkyl phosphate ester amine salt and pinene.... | 07/05/1994 |
| 5326923 | Method for regenerating certain acidic hydrocarbon conversion catalysts by solvent extraction This invention is a process for the regeneration of solid acidic hydrocarbon conversion catalysts, but particularly certain transition aluminas and zeolites promoted with Lewis acids (preferably BF3) which have been used in the alkylation of is... | 07/05/1994 |
| 5324881 | Supported heteropoly acid catalysts for isoparaffin-olefin alkylation reactions The alkylation of isoparaffin with olefin to provide alkylate is carried out in the presence of, as catalyst, a supported heteropoly acid. The support may be MCM-41, and the heteropoly acid may be dodecawolframophosphoric acid (i.e., phosphotungstic acid,... | 06/28/1994 |
| 5306859 | Alkylation catalyst regeneration utilizing polyvinylpyridine and amine substituted styrene divinylbenzene copolymer contact materials Described is a novel process for regenerating an ASO contaminated alkylation catalyst containing a sulfone component and a hydrogen halide component. A sulfone-containing mixture containing ASO and which is derived by the removal of a major portion of the... | 04/26/1994 |
| 5292982 | Liquid acid alkylation catalyst and isoparaffin-olefin alkylation process This invention provides an isoparaffin-olefin alkylation catalyst composition comprising hydrofluoric acid, an additive, and a superacid promoter. The additive is present in concentration sufficient to effect deactivation of the hydrofluoric acid for isop... | 03/08/1994 |
| 5286456 | Containment of an aerosolable liquid jet System for increasing rainout from a liquid jet of an aerosolable corrosive and toxic substance, e.g. hydrogen fluoride, hydrofluoric acid, ammonia or chlorine, exiting from a pressurized source such as a vessel, conduit, pump. The system includes an impa... | 02/15/1994 |
| 5277881 | Hydrogen fluoride alkylation apparatus and vapor recovery method A safety apparatus has been found for controlling the release of flashing hydrogen fluoride in a hydrocarbon alkylation process. The safety apparatus comprises containment baffles enclosing major process vessels. The safety apparatus may be used in combin... | 01/11/1994 |
| 5276242 | Alkylation process In one embodiment of this invention, a process for alkylating C3 -C6 alkanes (paraffins) with C3 -C6 alkenes (monoolefins) employs a catalyst composition which has been prepared by heating a mixture consisting e... | 01/04/1994 |
| 5196628 | Liquid acid alkylation catalyst and isoparaffin:olefin alkylation process The invention provides an isoparaffin:olefin alkylation catalyst composition and a process employing the same, wherein the catalyst composition comprises from about 10 to about 90 percent of at least one acid selected from the group consisting of hydroflu... | 03/23/1993 |
| 5196627 | Isoparaffin:olefin alkylation process and reactor apparatus The invention provides a substantially fail-safe HF alkylation process and reactor apparatus. The elongated reactor vessel is enclosed in a well casing and an alkylate-containing hydrocarbon layer is maintained above the hydrofluoric acid to prevent relea... | 03/23/1993 |
| 5196629 | Isoparaffin:olefin alkylation process and reactor apparatus The invention provides a substantially fail-safe HF alkylation process and reactor apparatus. The elongated reactor vessel is enclosed in a subterranean well casing and an alkylate-containing hydrocarbon layer is maintained above the hydrofluoric acid to ... | 03/23/1993 |
| 5191147 | Isoparaffin/olefin alkylation The present invention provides a process for alkylating an isoparaffin with an olefin comprising contacting an isoparaffin having from 4 to 8 carbon atoms with an olefin having from 2 to 12 carbon atoms in an alkylation reaction zone at temperature from a... | 03/02/1993 |
| 5173467 | Isoparaffin:olefin alkylation process and catalyst complex The invention provides a catalyst complex for promoting alkylation of an isoparaffin with an olefin, said catalyst complex comprising the reaction product of Lewis acid and at least one fluorophosphoric acid; and, additionally, excess Lewis acid in concen... | 12/22/1992 |
| 5073674 | Environmentally safe catalytic alkyation using liquid onium poly (hydrogen fluorides) A process for alkylating an aliphatic hydrocarbon having isobutane with an alkenyl hydrocarbon with isobutylene in the presence of a liquid onium polyhydrogen fluoride complex as the reaction medium and catalyst at a temperature between -20° and 70° and... | 12/17/1991 |
| 5015795 | Novel synthetic lube composition and process The thermal stability of synthetic lubricants composed of alpha-olefin oligomers is improved by reaction with an olefin such as decene or the lower molecular weight, non-lubricant range olefins produced in the course of the oligomerization of 1-alkenes. T... | 05/14/1991 |
| 4985220 | Hydrogen fluoride vapor containment A method of containing a hydrofluoric acid spill which includes the steps of detecting the spill, drenching the hydrofluoric acid spill area with an aqueous drench, drenching the hydrofluoric acid area with an aqueous solution composed of at least one foa... | 01/15/1991 |
| 4938936 | Hydrogen fluoride vapor containment and neutralization A method of containing and neutralizing a hydrofluoric acid spill which comprises the steps of detecting a hydrofluoric acid spill, and then drenching the hydrofluoric acid spill area with a drench composition comprising water, and an alkali agent, or wat... | 07/03/1990 |
| 4938935 | Alteration of the character of hydrogen fluoride droplets rendering them more susceptible to a water drench The incorporation of a proton acceptor to an HF alkylation composition. The addition alters the character of HF droplets in an HF cloud rendering a forming HF cloud more easily treated by a simple water drench.... | 07/03/1990 |
| 4891466 | HF alkylation process A novel liquid acid catalyzed alkylation process utilizing a liquid acid catalyst comprising a surfactant and a liquid acid is disclosed which incorporates a fixed bed of contact material to improve the alkylation reaction zone efficiency. The fixed bed o... | 01/02/1990 |
| 4835333 | Motor fuel alkylation process utilizing a surfactant containing catalyst to reduce hydrofluoric acid requirements A novel hydrofluoric acid-catalyzed motor fuel alkylation process and catalyst is disclosed which incorporates from 0.5 to 5 vol. % of a cationic or anionic surfactant component in an HF containing acid alkylation catalyst to enable the process to be oper... | 05/30/1989 |
| 4795728 | Motor fuel alkylation process utilizing a surfactant containing catalyst to reduce hydrofluoric acid requirements A novel hydrofluoric acid-catalyzed motor fuel alkylation process and catalyst is disclosed which incorporates from 0.5 to 5 vol. % of a cationic or anionic surfactant component in an HF containing acid alkylation catalyst to enable the process to be oper... | 01/03/1989 |
| 4781814 | Molecular sieve compositions and their use in cracking/hydrocracking Crystalline molecular sieves having three-dimensional microporous framework structure of MO2, AlO2, and PO2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydro... | 11/01/1988 |
