Quotables
"The man with a new idea is a crank until the idea succeeds."
Samuel Clemens
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7135604 | Process for separating carbon dioxide from an oxygenate-to-olefin effluent stream The present invention is a process for removal of carbon dioxide from a reactor effluent stream comprising water, carbon dioxide and olefin(s), where a portion of the carbon dioxide is removed in a quenching step with a quench medium and more carbon dioxide is remov... | 11/14/2006 |
| 7102049 | Process for operating a quench device in an oxygenate-to-olefin production unit The present invention is a process for producing olefin(s) from oxygenates that is more effective than previously known processes at removing carbon dioxide from the effluent stream by operating a quench tower at a pH greater than 7.0. ... | 09/05/2006 |
| 7045480 | Treatment of a titanium tetrachloride-containing waste stream The invention relates to a process to increase the amount of TiCI4 that is retrieved from a waste stream comprising one or more titanium (halo) (alk) oxides while also reducing the quantity and/or hazard of the resulting waste. Valuable solvents/diluents ... | 05/16/2006 |
| 6998050 | Method of treating fats and oils The present invention provides a method of treating fats and oils containing low concentrations of aromatic halogen compounds and other contaminants by contacting the fats or oils with an adsorbing agent. The adsorbing agent contains a porous body and a non-protonic... | 02/14/2006 |
| 5866750 | Method for removal of metal alkoxide compounds from liquid hydrocarbon A method for recovering titanium and vanadium compounds, such as alkoxides, from a liquid hydrocarbon mixture by hydrolyzing the mixture with a base or acid wash having a sufficiently different density so that two liquid phases form, and separating the tw... | 02/02/1999 |
| 5710357 | Process for recovering olefins from cat-cracked gas without accumulating undesirable oxides of nitrogen A safe, effective, and economical method is provided for recovering olefins from cat-cracked gases without accumulating dangerous amounts of nitrogen oxides. A stream of cat-cracked gas first is scrubbed to remove acid gases, including nitrogen dioxide (N... | 01/20/1998 |
| 5639934 | Process for the desulfurization of sulfur-containing compositions by hydrothermal reaction A process for the desulfurization of a sulfur-containing composition is described. The process comprises providing a sulfur-containing composition, adding an aqueous medium and a sulfur absorbent to the composition, and subjecting the resultant mixture to... | 06/17/1997 |
| 5582808 | Borohydrides to inhibit polymer formation in petrochemical caustic scrubbers The present invention provides borohydrides that are useful in reducing aldol condensation and subsequent polymer formation in caustic scrubbers. The borohydrides are believed to react with reactive carbonyls yielding more stable alcohols and a salt of th... | 12/10/1996 |
| 5510565 | Mercury removal from liquid hydrocarbon fraction Mercury is removed from a liquid hydrocarbon fraction by effecting high-temperature heat treatment to convert an organic mercury compound into an inorganic mercury compound or elemental mercury, removing a higher molecular weight component from the fracti... | 04/23/1996 |
| 5476987 | Method of removing halogenated aromatic compound from hydrocarbon oil A safe and reliable method of removing halogenated aromatic compounds present in small amounts in hydrocarbon oil constituted mainly by non-aromatic hydrocarbon oil. The hydrocarbon oil is contacted with a heat-resistant alkaline polar solvent in the pres... | 12/19/1995 |
| 5444176 | Process for recovering olefins from cat-cracked gas without accumulating undesirable oxides of nitrogen A safe, effective, and economical method is provided for recovering olefins from cat-cracked gases without accumulating dangerous amounts of nitrogen oxides. A stream of cat-cracked gas first is scrubbed to remove acid gases, including nitrogen dioxide (N... | 08/22/1995 |
| 5378783 | Dicyclopentadiene activation method and polymerization composition A highly polymerizable dicyclopentadiene (DCPD) monomer composition is obtained. The dicyclopentadiene so obtained is highly suitable for ring-opening polymerization by metathesis catalysts. The active DCPD yields articles with excellent physical properti... | 01/03/1995 |
| 5336835 | Product/process/application for removal of mercury from liquid hydrocarbon Impregnated carbon adsorbents for the removal of mercury from liquid hydrocarbons are used in a variety of applications. The activated carbon impregnated adsorbents in the present invention remain effective in removing mercury. Generally, these activated ... | 08/09/1994 |
| 5292992 | Process for removing conjugated dienes from alpha-olefins Conjugated diene impurities are removed from linear alpha-olefin products by contacting the linear alpha-olefin product with an acid treated montmorillonite clay which is effective to reduce the conjugated diene content of the linear alpha-olefin product,... | 03/08/1994 |
| 5245095 | Extraction of carotenoids from natural sources A carotenoid-enriched fraction is extracted from natural sources, such as carrots, by (i) separating the carotenoid-containing natural source into a carotenoid-containing liquid fraction and a pulp fraction, (ii) adding a carotenoid precipitation agent in... | 09/14/1993 |
| 5223589 | Process for separating durene from substituted benzene hydrocarbons The separation of durene in high purity from coal tar or petroleum fractions by an adsorptive chromatographic process and liquid phase with lithium-exchanged X zeolite as the adsorbent and liquid aromatic desorbents.... | 06/29/1993 |
| 5220104 | Method for the prevention of fouling in a caustic solution The present invention is directed to the use of a solution of a percarbonate compound to prevent fouling during the basic washing of hydrocarbons containing oxygenated compounds. More specifically, oxygenated compounds such as carbonyl containing organics... | 06/15/1993 |
| 5191149 | Method of refining liquified petroleum gases into aerosol propellants A method for refining liquified petroleum gases so that gases can be treated to reduce odor, olefins, moisture and wherein side reactions are minimized to produce stable aerosol by multistage liquid-liquid extraction of the aerosol using electrolyte solut... | 03/02/1993 |
| 5177299 | Recovery of high octane components from isomerates An adsorption process for separating the high octane components, including multi-branched paraffins and isopentane of a C5 -C6 isomerate from lower octane monobranched and normal paraffin components by contacting the isomerate with a... | 01/05/1993 |
| 5157205 | Process for removing aldehydes and/or vinyl esters from gaseous or liquid process streams Solutions of caustic and sulfite are used in a single step process to remove aldehydes and vinyl esters from gaseous and liquid process streams.... | 10/20/1992 |
| 5146041 | Method of separating isobutylene from a C-4 hydrocarbon fraction using montmorillonite catalysts Disclosed is a two-step method for separating isobutylene from a C-4 hydrocarbon fraction comprising: a) Reacting the C-4 fraction with a glycol in the presence of an acidic montmorillonite catalyst at a temperature of about 60° to 160° C. to yield the ... | 09/08/1992 |
| 5106484 | Purifying feed for reforming over zeolite catalysts The present invention is directed to a process for treating hydrotreated naphtha which involves treating the naphtha over massive nickel catalyst followed by treating the naphtha over a metal oxide under conditions effective for removing impurities from s... | 04/21/1992 |
| 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 |
| 4808299 | Removal of copper and iron from oil A process for removing copper and/or iron impurities from a liquid hydrocarbon-containing feed comprises contacting the feed with an aqueous treating agent comprising water-soluble alkali metal silicate (in particular sodium silicate) and/or a surfactant,... | 02/28/1989 |
| 4772758 | Process for the production of technically pure, chlorine-free cyclohexadecadiene A process for producing technically pure, chlorine-free cyclohexadecadiene by purifying the product mixture obtained preferably from the metathesis of cyclooctene by first removing by distillation the low boiling C6 hydrocarbons and any water t... | 09/20/1988 |
| 4642408 | Method for the removal of nickel, aluminum and chlorine from olefin oligomers Nickel, aluminum and chlorine derivatives which remain dissolved in olefin oligomers after oligomerization in the presence of a catalyst comprising nickel, aluminum and chlorine compounds, are removed from the crude product by treatment with: oxygen or a ... | 02/10/1987 |
| 4571445 | Process for removal of sulfur compounds from conjugated diolefins A process is disclosed for reducing the level of sulfur compounds from liquid conjugated diolefin hydrocarbons by contacting said sulfur compound-bearing hydrocarbon liquids with sorbents prepared by combining particulate alumina with at least one compoun... | 02/18/1986 |
| 4455447 | Process for upgrading hydrocarbon streams comprising conjugated diolefins Process for the upgrading of hydrocarbons comprising conjugated diolefins using a dispersion of an alkali(ne earth) metal, characterized in that the upgrading is carried out in the presence of an aliphatic amine having at least one primary amine group.... | 06/19/1984 |
| 4438289 | Reduction of cyclopentadiene from isoprene streams A process for reducing the level of cyclopentadiene present in a hydrocarbon stream containing isoprene and cyclopentadiene which involves contacting the stream with a base wherein said base is selected from the group consisting of potassium hydroxide, so... | 03/20/1984 |
| 4433194 | Purification of cyclohexane Solvents which may be used as mediums for the polymerization of olefinic hydrocarbons to form polymers useful as membranes in a gas separation process require purification to remove any impurities which will effect the aforesaid polymerization. Purificati... | 02/21/1984 |
| 4392004 | Reduction of cyclopentadiene from isoprene streams A process for reducing the level of cyclopentadiene present in a hydrocarbon stream containing isoprene and cyclopentadiene which involves contacting the stream with a base wherein said base is selected from the group consisting of potassium hydroxide, so... | 07/05/1983 |
| 4161496 | Novel method of treating a charge hydrocarbon stream containing isobutene and also butadiene Isobutene is separated from a charge hydrocarbon stream, which may contain butadiene, in two stages in the first of which isobutene is present in excess and in the second of which isobutene is present in deficiency. In the first stage, a strongly acidic i... | 07/17/1979 |
| 4125568 | Removal of carbonyl impurities Impurities that are carbonyl-containing organic compounds (e.g., acetaldehyde) are removed from organic hydrocarbons produced in conventional production facilities. The process comprises contacting the hydrocarbon product (e.g., butadiene) with an aqueous... | 11/14/1978 |
| 4104318 | Process for removing organic oxygen-containing impurities from an organic composition in the presence of steam The amount of oxygen-containing impurities in an organic composition is reduced at an elevated temperature in the presence of steam using a catalyst comprising a Group VIb or Group VIII metal oxide or phosphate. For example, the amount of oxygen-containin... | 08/01/1978 |
| 4076762 | Continuous process for the removal of other hydrocarbons from saturated aliphatic hydrocarbons Non-paraffinic hydrocarbons, such as aromatic hydrocarbons, in a stream of paraffinic hydrocarbons are removed in an operation adaptable for continuous operation by contacting the paraffinic hydrocarbon stream with an oxidation system comprising an aqueou... | 02/28/1978 |
| 4066713 | Process for the addition of organic acids to acetylenic compounds contained in inorganic or organic hydrocarbon streams A method is disclosed for removing the small fractions of acetylenic compounds from a mixed hydrocarbon stream, the improvement consisting in that said stream is treated with an organic acid in the presence of an acidic ion-exchange resin, preferably an -... | 01/03/1978 |
| 4060567 | Method of reducing -acetylene content of hydrocarbon Hydrocarbon fraction containing diolefins and -acetylenes are treated with an alkali amide to reduce the -acetylene content.... | 11/29/1977 |
| 4045506 | Separation of hydrocarbon mixtures by catalytic dealkylation A process for separating mixtures of close boiling alkenes and alkanes which employs catalytic dealkylation of alkylphenols.... | 08/30/1977 |
| 4024170 | Liquid clathrates Liquid clathrates of the formula: M{al2 [CH2)x CH3 ]6NO3 }.n Y, wherein M is potassium, rubidium, cesium, tetraalkylammonium, tetraarylammonium, tetraalkylphosphonium or tetraarylphosphonium, x is an integ... | 05/17/1977 |
| 3998902 | Purification of unsaturated compounds Gaseous streams containing carbonyl compounds are reduced in carbonyl compounds by reacting a vapor phase with catalyst of Periodic Table Groups 1a, 1b, 2a, 2b, 3b, 4b, 6b, 7b, 8 and mixtures. Reactor effluent from oxidative dehydrogenation reaction to pr... | 12/21/1976 |
