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| Number | Title | Issue Date |
| 4152292 | Method of initiating essentially complete oxidation of CO to CO2 in a spent-catalyst regeneration zone A method for initiating essentially complete oxidation of carbon monoxide, resulting from the oxidative removal of coke from spent FCC catalyst, to carbon monoxide in a dense-phase bed of catalyst maintained in a regeneration zone. Coke is oxidized at fir... | 05/01/1979 |
| 4152304 | Pressure-sensitive flexible resistors Pressure-sensitive flexible resistors comprising an elastomeric material containing a controlled resistive element or material are prepared by impregnating an elastomeric material such as a rubber with a semiconducting carbonaceous pyropolymeric inorganic... | 05/01/1979 |
| 4105722 | Lightweight, closed-cell foam elastomeric elements for use in countercurrent gas-liquid contact operations The use of lightweight, elastomeric closed-cell foam elements can be of particular advantage in countercurrent flow gas-liquid contactors in order to provide aeratable non-breakable forms of mobile contacting surfaces. In particular, the use of elastomeri... | 08/08/1978 |
| 4083806 | Hydrocarbon conversion with an acidic, sulfur-free trimetallic catalytic composite Hydrocarbons are converted by contacting them in a substantially sulfur-free environment at hydrocarbon conversion conditions with an acidic, sulfur-free trimetallic catalytic composite comprising a combination of catalytically effective amounts of a plat... | 04/11/1978 |
| 4066801 | Continuous system for providing a catalytic coating on support members A processing system which can provide a continuous assembly-line procedure for placing a catalytic coating on ceramic honeycomb type members embodies the use of a plurality of pressure tight chambers such that each ceramic member can be vacuum treated and... | 01/03/1978 |
| 4064038 | Fluid catalytic cracking process for conversion of residual oils A fluid catalytic cracking process employing in combination a riser reaction zone and a CO-burning regeneration zone for the conversion of a feedstream comprising a residual oil to a distillate fuel.... | 12/20/1977 |
| 4059147 | Integral finned tube for submerged boiling applications having special O.D. and/or I.D. enhancement Heat transfer tubing adapted to be submerged in a liquid to be boiled as a result of transfer of heat from the interior of the tube to the liquid. The exterior of the tubing has elongated circumferentially extending confined spaces of substantially unifor... | 11/22/1977 |
| 4046715 | Nonacidic multimetallic dehydrogenation catalyst A dehydrogenatable hydrocarbon is dehydrogenated by contacting the hydrocarbon, hydrogen, and water or a water-producing substance, at dehydrogenation conditions, with a nonacidic catalytic composite comprising a combination of catalytically effective amo... | 09/06/1977 |
| 4044062 | Hydrocarbon separation A process for the separation of a para-isomer from a hydrocarbon feed stock containing alkyl-aromatic hydrocarbons having more than eight carbon atoms per molecule which employs a crystalline aluminosilicate adsorbent containing a particular cation or cat... | 08/23/1977 |
| 4040929 | Oxygen sensor having thin film electrolyte Oxygen sensor incorporating a thin film electrolyte such as yttria stabilized zirconia sputtered onto a substrate produces an electrical signal in response to differences in oxygen partial pressures. The electrical signal changes rapidly enough for useful... | 08/09/1977 |
| 4038939 | Continuous system for providing a catalytic coating on support members A processing system which can provide a continuous assembly-line procedure for placing a catalytic coating on ceramic honeycomb type members embodies the use of a plurality of pressure tight chambers such that each ceramic member can be vacuum treated and... | 08/02/1977 |
| 4039482 | Method of coating and impregnating catalyst support members A liftable housing form of pressure tight treating chamber is especially adapted to providing multiple stage treatments to catalyst support members, such as honeycomb-type elements, in order to place a catalytic coating on all of the interior surfaces of ... | 08/02/1977 |
| 4039602 | Ethylbenzene Dehydrogenation process A process for the dehydrogenation of alkylaromatic hydrocarbons, such as ethylbenzene, in which a water stream formed by condensing and separating the effluent of the reaction zone is treated for the removal of alkenylaromatic hydrocarbons by passage thro... | 08/02/1977 |
| 4036896 | Production of chloro-substituted saturated compounds Chloro-substituted saturated compounds are prepared by condensing a saturated hydrocarbon containing at least 3 carbon atoms and a hydrogen atom attached to a secondary or tertiary carbon atom or to a carbon atom which is attached to an aromatic ring with... | 07/19/1977 |
| 4033878 | Spiral wound membrane module for direct osmosis separations A membrane module is made from at least one pair of spaced membrane sheets that are interposed between spaced porous material sheets and all of the layers of sheets are in turn spirally wound around an axially positioned hollow mandrel that has at least o... | 07/05/1977 |
| 4033726 | Spent catalyst regeneration apparatus with internal and external regenerated-catalyst recycle means An apparatus for the oxidation of coke from an FCC spent catalyst is disclosed which comprises in combination and particular arrangement a spent-catalyst receiving chamber for containing a dense-bed of fluidized catalyst in which chamber spent catalyst is... | 07/05/1977 |
| 4032751 | Radiant heating panel A plastic laminate form of heating panel incorporating a layer of a semiconductive carbonaceous pyropolymer, consisting of carbon and hydrogen on a high surface area refractory inorganic oxide support, with the conductive pyropolymer positioned to at leas... | 06/28/1977 |
| 4028428 | Process for the separation of ethylbenzene An adsorptive separation process for separating ethylbenzene from a feed mixture comprising ethylbenzene and a plurality of xylene isomers, which process comprises contacting the feed mixture with an adsorbent comprising strontium exchanged type X or type... | 06/07/1977 |
| 4028216 | Method for producing an alumina sol A stoichiometric amount of aluminum is commingled with hydrochloric acid in an aqueous media to provide a final reaction mixture containing from about 10 to about 14 wt. % aluminum in from about a 1:1 to about 1.5:1 ratio with the chloride anion content t... | 06/07/1977 |
| 4028430 | Simulated moving bed reaction process A continuous catalytic reaction and catalyst reactivation process is carried out using a simulated moving catalyst bed to effect simultaneously in different zones of a multi-zone fixed catalyst bed an alkylation reaction of olefin and isoparaffin reactant... | 06/07/1977 |
| 4023556 | Laminated absorber member for flat plate solar collector and method of making same Flat plate absorber member includes a flat heat absorbing sheet of a thin metal foil such as copper, or a thin plastic film such as polyvinyl fluoride, bonded to a channeled substrate, and particularly to a plastic laminate such as a glass epoxy laminate.... | 05/17/1977 |
| 4022828 | Vulcanization inhibiting compounds Novel compounds for inhibiting the premature vulcanization of vulcanizable rubber formulations comprising bis-(sulfonamido)-sulfides or polysulfides having the formula: ##STR1## where R and R' are independently selected from the group consisting of ... | 05/10/1977 |
| 4021381 | Integral-skinned polyurethane foam prepared in the presence of a phosphite or phosphine catalyst A flame-retardant integral-skinned polyurethane foam is prepared by a method which comprises the reaction of a polyol and an organic polyisocyanate in the presence of a foaming agent comprising trichlorofluoromethane, the improvement which comprises the i... | 05/03/1977 |
| 4019964 | Method for controlling the reboiler section of a dual reboiler distillation column A control method and system for regulating the heat input to the reboiler section of a distillation column having attendant thereto a first external heat-recovery reboiler. Flow-measuring means, disposed within a substantially liquid-free environment, pro... | 04/26/1977 |
| 4019779 | Laminated armrest Laminated cushion formed of a plurality of alternating, relatively rigid and relatively soft layers of resilient foam has a higher compression rate in the direction of an axis parallel to the planes of the layers than in the transverse direction. Thus, wh... | 04/26/1977 |
| 4018943 | Method of forming a conducting material for a conducting device A method of making conductive material for a conducting device. The material is formed by reacting an organic pyrolyzable substance in the presence of a refractory oxide having a surface area of from about 1 to about 500 square meters per gram in a non-ox... | 04/19/1977 |
| 4018705 | Reactivation of a spent liquid phthalocyanine catalytic composite A spent liquid catalytic phthalocyanine composite is reactivated by a method which comprises percolating said spent liquid phthalocyanine composite through a bed comprising an absorbent compound, recovering the percolated liquid catalytic phthalocyanine c... | 04/19/1977 |
| 4018668 | Hydrocarbon conversion with an acidic multimetallic sulfur-free catalytic composite Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic sulfur-free catalytic composite comprising a combination of catalytically effective and specially selected amounts of a platinum group componen... | 04/19/1977 |
| 4014984 | Recombining of dissociated hydrogen and oxygen A compact tubular-form reactor-condenser system is provided for use with a nuclear container to effect the recombining of dissociated H2 and O2 and preclude the buildup of H2 in such container. A pumping means and preheati... | 03/29/1977 |
| 4013737 | Upgrading synthetic gasoline Gasoline synthesized from carbon monoxide and hydrogen is contacted with a solid phosphoric acid catalyst to improve the octane number of the gasoline.... | 03/22/1977 |
| 4010010 | Gas-vapor separation process and apparatus with low energy consumption Process and apparatus for the separation of gaseous and vaporous constituents from a feed containing the same. Vaporous feed components are absorbed into multiple primary lean absorber liquids and a secondary lean absorber liquid through contact between t... | 03/01/1977 |
| 4009218 | Alkylaromatic hydrocarbon dehydrogenation process Styrene is removed from a recycle water stream of an ethylbenzene dehydrogenation process by liquid-liquid extraction to prevent polymer buildup on heat exchange tubes and to lower coke formation in boiler tubes. The water stream is then fed into a heater... | 02/22/1977 |
| 4009217 | Process for production and dehydrogenation of ethylbenzene Ethylbenzene is produced by the alkylation of benzene and subsequently catalytically dehydrogenated to produce styrene in a process wherein a benzene sidecut stream removed from the fractionation zone separating the newly produced ethylbenzene is water wa... | 02/22/1977 |
| 4009203 | Conversion of olefins to esters Olefins, and particularly olefinic hydrocarbons, may be converted to esters by treating the olefin with a carboxylic acid in the presence of a catalyst comprising the product resulting from the reaction of a tin halide with a carboxylic acid, the conversi... | 02/22/1977 |
| 4008150 | Fractionation to remove a high-boiling material and a dissolved substance An improved method of simultaneously removing high-boiling materials and a volatile dissolved substance, such as oxygen, from a hydrocarbon stream as is performed in feed preparation columns. About 25 to 75 percent of the feed stream is vaporized in a fla... | 02/15/1977 |
| 4008180 | Dehydrogenation method and multimetallic catalytic composite for use therein Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at dehydrogenation conditions, with a catalytic composite comprising a combination of catalytically effective amounts of a platinum or palladium component, a rhodium component, and a tin... | 02/15/1977 |
| 4007776 | Heating and cooling system utilizing solar energy System using solar energy to heat a fluid in a heat storage tank can be utilized in either a heating mode or cooling mode. In the heating mode, several valves are actuated to cause fluid contained in an internal heat exchanger in the heat storage tank to ... | 02/15/1977 |
| 4008291 | Simulated moving bed alkylation process A continuous catalytic alkylation reaction and catalyst reactivation process is carried out using a simulated moving catalyst bed to effect simultaneously in different zones of a multi-zone, fixed catalyst bed, an alkylation reaction and a reactivation of... | 02/15/1977 |
| 4008289 | Adsorbent treating method A more economical method of removing materials adsorbed on solid adsorbents used to treat hydrocarbon streams is presented. The method comprises removing a liquid hydrocarbon stream from a distillation column, vaporizing the liquid stream and superheating... | 02/15/1977 |
| 4004634 | Automotive oil cooler Submerged oil cooler for automotive vehicles requires only two principal parts but can provide more heat transfer at a lower pressure drop than conventional oil coolers which utilize three principal parts. In a preferred embodiment, an outer tube having a... | 01/25/1977 |
