Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 5076926 | Modified membrane A process is provided for modifying a ceramic ultrafiltration membrane system consisting of a sub-microporous top layer and a microporous inorganic carrier whereby said top layer after modification has reduced pore size and/or is made catalytically active... | 12/31/1991 |
| 5073661 | Process for the preparation of hydrocarbons The invention relates to a process for the preparation of hydrocarbons, wherein a feed comprising methanol is contacted at reaction conditions with a catalyst comprising: (i) a porous carrier material selected from the group comprising silica, alumina, an... | 12/17/1991 |
| 5068254 | Process for the preparation of hydrocarbons The invention relates to a process for the preparation of hydrocarbons by a catalytic reaction of a mixture of carbon monoxide and hydrogen, comprising the steps of: (i) providing a gas mixture comprising carbon monoxide and hydrogen; (ii) washing the mixture ... | 11/26/1991 |
| 5057629 | Process for reducing isopropyl alcohol in diisopropyl ether A process is disclosed for selectively sorbing contaminating amounts of isopropyl alcohol from diisopropyl ether by contacting with a high surface area strong acid type cation exchange resin in the hydrogen form, preferably having a mean pore diameter in ... | 10/15/1991 |
| 5053243 | Preparation of adsorbent layers A process for the preparation of adsorbent layer upon a non-permeable substrate comprising a) generating plasma by introducing a non-polymerizable fluid into a plasma generation zone using a direct current arc; b) introducing hydrocarbonaceous monomers into sa... | 10/01/1991 |
| 5049240 | Vaccum distillation system Vacuum distillation system which has a vacuum distillation column (1) having a column inlet (6), a bottom outlet (8) and a top outlet (10), a furnace (2) provided with a heat-exchange tube (27) having a tube inlet (28) and a tube outlet (29), and a connec... | 09/17/1991 |
| 5023389 | Process for preparing normally liquid oxygenate and hydrocarbonaceous products from a hydrocarbon feed containing linear- and branched olefins The invention relates to a process for preparing normally liquid hydrocarbon products such as middle distillates and methyl-t-butylether from a hydrocarbon feed containing linear and branched olefins (e.g. propane and butenes in light ends) comprising at ... | 06/11/1991 |
| 5020368 | Method and system measuring a vertical density profile of a fluid Method and system for measuring vertical density profile of fluid by pressurizing an array of pipes, determining level and pressure signals on each pipe and deriving profile therefrom.... | 06/04/1991 |
| 5019218 | Vacuum distillation process Improved hydrocarbon vacuum distillation process wherein the process steps include introducing a feed which contains liquid hydrocarbons and vaporous hydrocarbons into an inlet section (3) of a distillation column (1) operating at a subatmospheric pressur... | 05/28/1991 |
| 4987273 | Process for the separation of a phenol The invention relates to a process for the separation of a phenol from a mixture obtained by the carboxylation of the phenol and containing phenol, phenolate and the carboxylation products thereof, which process comprises separation carried out by selecti... | 01/22/1991 |
| 4975404 | Process for the production of methanol and catalyst composition for said process A process for the production of methanol comprising contacting a gaseous mixture of carbon monoxide and hydrogen with a catalytic system, obtainable by combination of: component (a): a substantially dry nickel formate, component (b): water in a predetermined a... | 12/04/1990 |
| 4958680 | Apparatus for particulate solids regeneration An apparatus for particulate solids (e.g. FCC catalyst) regeneration comprising a regenerator housing containing fluidization means arranged below spent-solids inlet means and regenerated-solids outlet means and having fluid in- and outlet means, and furt... | 09/25/1990 |
| 4956091 | Apparatus for separating solid particles from a fluid Apparatus for separating solid particles from a fluid, comprising a swirl chamber (3) provided with a curved wall, a tangential inlet (9) and a solids outlet (13), both arranged perpendicular to the central longitudinal axis (5) of the swirl chamber (3). ... | 09/11/1990 |
| 4954294 | Vapor/liquid contact apparatus An apparatus and method for sealing vapor/liquid contacting trays on startup of a downcomer-equipped vapor/liquid contactor comprising a series of gas/liquid contacting trays, at least some of said trays having a weir to maintain a liquid level thereon, a... | 09/04/1990 |
| 4945343 | System and method for detection of malfunctioning steam traps A system and method for detecting malfunctioning of a steam trap is disclosed employing malfunction detecting means, signal generating means and signal indicating means.... | 07/31/1990 |
| 4938862 | Process for the thermal cracking of residual hydrocarbon oils Process for thermal cracking of residual hydrocarbon oils by (1) feeding the oil and a synthesis gas to a thermal cracking zone, the gas having a temperature sufficiently high to maintain the temperature in the cracking zone by direct heat exchange at 420°-64... | 07/03/1990 |
| 4925995 | Process for preparing liquid hydrocarbons The invention relates to a process for preparing liquid hydrocarbons (e.g., middle distillates or gasoline) comprising at least the following steps: (i) catalytically oligomerizing an olefins-containing feed, (ii) separating effluent from step (i) into at least two... | 05/15/1990 |
| 4925569 | Process for sorption and catalytic oxidation of sulfides in water A process is disclosed for reducing the level of sulfides in aqueous solutiuons which comprises contacting a sulfide-containing solution having a pH value in the range from about 8.5 to 12 with oxygen in the presence of a flocculent manganese-containing c... | 05/15/1990 |
| 4921539 | Modified pitch specially adapted to bind coal particles The invention concerns a modified pitch composition specially adapted to bind coal particles with the purpose of transforming it into briquettes; the pitch is modified by reaction with an unsaturated dicarboxylic acid or anhydride thereof, and at least on... | 05/01/1990 |
| 4900340 | Contacting device for gas and solid particles Apparatus for contacting a gas with solid particles comprising a housing, an inlet space, an outlet space and at least one contacting unit, where the contacting unit comprises a first wall, a second wall parallel to the first wall, a plurality of gas cond... | 02/13/1990 |
| 4900849 | Process for the production of dichlorohydrin A process for the continuous production of di- and/or epichlorohydrin is disclosed wherein impurities, e.g., chloroaliphatic alkanes and chloroaliphatic ethers are removed by energy efficient solvent extraction and are obtained in relatively concentrated ... | 02/13/1990 |
| 4899671 | Method for measuring temperature of hot gases inside a vessel which radiates microwave energy An improved method for measuring temperature of hot gases inside a vessel which radiates microwave energy, which method comprises sensing the energy at a frequency above about 100 gigahertz whereby the effect on said measurement of any solids entrained in... | 02/13/1990 |
| 4894394 | Process for the manufacture of methanol in combination with steam reforming of light hydrocarbons Process for the manufacture of methanol by the reaction of a carbon monoxide and hydrogen mixture obtained by steam reforming of light hydrocarbons in the liquid phase in the presence of the catalyst system obtainable by combination of at least: (a) the s... | 01/16/1990 |
| 4894205 | Multitube reactor Multitube reactor for carrying out a process for catalytic conversion, comprising a normally substantially vertically extending vessel, a plurality of open-ended reactor tubes (2) arranged in the vessel parallel to its central longitudinal axis of which t... | 01/16/1990 |
| 4887962 | Partial combustion burner with spiral-flow cooled face Disclosed is a burner for the partial combustion of a solid carbonaceous fuel wherein coal, e.g., finely divided coal, is supplied to a reactor space via a central channel disposed along the longitudinal axis of the burner, and oxygen-containing gas is su... | 12/19/1989 |
| 4888031 | Process for partial oxidation of a liquid or solid and/or a gaseous hydrocarbon-containing fuel Process for the partial oxidation of a liquid or solid and/or a gaseous fuel using a multi-orifice burner comprising a central channel and four concentric channels encircling the central channel. Liquid or solid fuel is supplied through the second concent... | 12/19/1989 |
| 4880451 | Gas/liquid contacting apparatus Gas/liquid contacting apparatus (1) comprising a housing (2) provided with a gas inlet (3), a liquid outlet (5), a liquid inlet (7) and a gas outlet (9) arranged above the gas inlet (3), and a horizontal tray (11) arranged between the gas inlet (3) and th... | 11/14/1989 |
| 4878835 | Ceramic burner for partial oxidation of a hydrocarbon-containing fuel A protruding mantle separates burner internals from the hot gasification environment. The mantle is cooled by at least one of the feedstreams. The lining can be made of ceramics such as silicon carbide and/or silicon nitride. In order to lower thermo-mech... | 11/07/1989 |
| 4869814 | Apparatus for separating dispersed phases for fluid mixtures An apparatus for separating dispersed phases from fluid mixtures comprising a fluid separation chamber provided with a plurality of fluid outlet ports for discharge of fluids with different densities, and fluid inlet means for introducing the mixture into... | 09/26/1989 |
| 4865542 | Partial combustion burner with spiral-flow cooled face Disclosed is a burner for the partial combustion of a solid carbonaceous fuel wherein coal, e.g., finely divided coal, is supplied to a reactor space via a central channel disposed along the longitudinal axis of the burner, and oxygen-containing gas is su... | 09/12/1989 |
| 4861447 | Process for reducing corrosive impurities in sulfolane used for extracting aromatic hydrocarbons A process is disclosed for reducing the level of corrosive impurities in sulfolane solution originating from a process for the extraction of aromatic hydrocarbons from petroleum, which process comprises providing an aqueous solution of sulfolane having a ... | 08/29/1989 |
| 4858538 | Partial combustion burner Disclosed is a burner for the partial combustion of a solid carbonaceous fuel, and suitable for use in an reactor having a plurality of burners wherein e.g. finely divided coal is supplied to a reactor space via a central channel disposed along the longit... | 08/22/1989 |
| 4842718 | Process for recovery of hydrocarbons from a fluid feed A process for recovery of hydrocarbon (C2+) containing at least two carbon atoms per molecule (e.g. LPG) from a fluid feed containing C2+ hydrocarbons and components having at most one carbon atom per molecule (... | 06/27/1989 |
| 4836831 | Process for partial oxidation of a hydrocarbon-containing fuel Process for the partial oxidation of fuel using a multi-orifice burner comprising a central channel and three substantially concentric channels encirling the central channel. Fuel is supplied through each of the first and third concentric channels and the... | 06/06/1989 |
| 4820849 | Process for reducing corrosive impurities in sulfolane used for extracting aromatic hydrocarbons A process is disclosed for reducing the level of corrosive impurities in sulfolane solution originating from a process for the extraction of aromatic hydrocarbons from petroleum and having a pH of at least 8.5, comprises combining a sulfolane-soluble poly... | 04/11/1989 |
| 4816226 | Apparatus for continuous flow injection solvent extraction analysis An analytical system is disclosed employing dual valve injector sampling and suitable for continuous flow injection analysis employing extraction of a liquid sample with an immiscible liquid solvent for a component of said sample liquid.... | 03/28/1989 |
| 4810366 | Process for separating a fluid feed mixture containing hydrocarbon oil and an organic solvent Process for separating a fluid feed mixture containing hydrocarbon oil and an organic solvent (e.g. obtained from a furfural extraction unit) by contacting said fluid feed mixture at elevated pressure with one side of a hydrocarbon oil-selective membrane ... | 03/07/1989 |
| 4810340 | Process for recovering organic values from aqueous solutions containing both organic values and scale-forming ions An improved process for recovering organic values from aqueous solutions containing scale-forming ions by electrodialysis and fractionation-distillation, wherein an aqueous substantially free of organics is introduced into the concentrate side of the elec... | 03/07/1989 |
| 4809624 | Method for starting up a partial combustion process A method for starting up a partial combustion process, using a burner, wherein finely divided carbon-containing fuel is supplied to a reactor or gasifier and an oxygen-containing gas is supplied separately from the said fuel to the reactor or gasifier and... | 03/07/1989 |
| 4769047 | Process for the production of ethylene oxide In a process for the direct oxidation of ethylene to ethylene oxide, ethylene is recovered from normally vented gas by contacting first with an activated carbon adsorbent then by pressure swing adsorption with a zeolitic molecular sieve adsorbent.... | 09/06/1988 |
