Abstract: Solar energy collection device uses a motor driven moving endless belt absorber member which is mounted in a glass covered collector housing so as to present a flat plate configuration to the solar rays. The moving belt progressively increases in temperature as it passes through the housing, and is guided, after it is heated, to a heat transfer chamber outside the main collector housing where its heat can be transferred to a suitable heat transfer fluid.

Abstract: A method is disclosed for effecting a uniform distribution of catalytically active metallic component over substantially all of the available surface area of a carrier material in a crystallite size of less than about 25 Angstroms. The innovative feature is in the use of a sulfur-containing organic acid as a complexing agent for the catalytically active metallic component in an impregnating solution adjusted to a pH of from about 5 to about 7.

Abstract: A system for controlling the hydrogen/hydrocarbon mole ratio in a continuous hydrocarbon conversion process in which hydrogen is consumed in a catalytic reaction zone. Applicable to processes in which the reaction zone effluent is separated to provide a liquid product phase and a hydrogen-rich vaporous phase, a portion of the latter being recycled to the catalytic reaction zone, the control system affords improved overall operation in addition to increased catalyst activity and stability. Analyzers are utilized to monitor composition characteristics of the charge stock and liquid product, and the hydrogen concentration of the vaporous phase introduced into the reaction zone. Representative process output signals are transmitted to comparator/computer means which compares the rate of change of the composition characteristics and the hydrogen concentration, and generates additional, comparator output signals which are utilized within the control system for regulating the hydrogen/hydrocarbon mole ratio.

Abstract: A catalytic composite comprising a Group VIB and a Group VIII metal or metal oxide on a silica-alumina support or carrier material. A catalytic composite particularly useful for the hydrotreating or hydrorefining of petroleum hydrocarbon fractions results from the use of a silica-alumina support or carrier material formed by the gelation of a suspension of an insoluble basic aluminum sulfate in an acidic silica sol.

Abstract: Improved forms of electric resistance elements or resistors may be made from semiconducting organic-refractory oxide fibers, as for example drawn alumina fibers which have been subjected to contact with a pyrolyzable organic substance at a temperature above about 400.degree. C. A few, or a large number of the semiconductive fibers, can be used in a group or bundle form to provide a desired resistance for a particular resistor. A preferred form of resistance element will cover the fibers in a quartz tube or other suitable encapsulating material to preclude moisture problems.

Abstract: An improved process for the separation of olefins from a hydrocarbon feed mixture comprising olefins and saturates which process uses a zeolite adsorbent to selectively adsorb the olefins. The improvement comprises employing a zeolite adsorbent produced by the steps of: contacting a precursor mass containing type X structured zeolite and amorphous material as a binder with an aqueous caustic solution to effect the addition of alkali metal cations to the crystalline structure; washing the mass with water to remove therefrom excess caustic solution; and, at least partially dehydrating said mass at dehydrating conditions thereby producing an adsorbent which has both increased capacity for olefins and decreased catalytic activity.

Abstract: Isomerizable saturated hydrocarbons are isomerized using a catalytic composite comprising a combination of a platinum or palladium component, an iridium component, a germanium component and a halogen component with a porous carrier material.

Abstract: A synergistic mixture comprising an alkynyl cycloalkanol and N,N'-dicycloalkyl-thiourea and polyaminomethylenephosphonate is used as an inhibitor in protecting metals from acid attack when cleaning said metals with an acid solution.

Abstract: A method of impregnating a catalytic component on the outer surface of a carrier material at conditions to improve the activity stability as well as the physical stability of the catalytic composite. A carrier material is immersed in an impregnating solution containing a catalytic component and a sulfur-containing carboxylic acid whereby the catalytic component is dispersed on the outer surface of the carrier material without any substantial penetration thereof. Prior to calcining, the impregnated carrier material is further impregnated with an alkaline earth metal salt of an organic acid and the solution evaporated to dryness in contact with the impregnated carrier material.

Abstract: A control system for regulating the reaction zone temperature in a process for the acid-catalyzed reaction of an isoparaffin with an olefinic feed stream containing mixed olefins. Hydrocarbon analyzers produce process output signals which are representative of composition characteristics of the olefinic feed stream and the liquid alkylate product. These process output signals are transmitted to computer/comparator means which develops an output signal as a function thereof. The computer output signal is employed to adjust the reaction zone temperature to obtain the optimum consistent with a given feed composition and desired alkylate product quality. The control system rapidly compensates for continuing changes in feed composition which, at a fixed reaction zone temperature, would otherwise adversely affect the alkylate product quality.

Abstract: A hydroformylation process comprising the treatment of an unsaturated compound with carbon monoxide and hydrogen in the presence of a catalyst comprising a polynitroaromatic and a cobalt-containing compound is disclosed.

Abstract: A method of impregnating a catalytic component on a carrier material. The carrier material is immersed in an impregnating solution containing a catalytic component and a polybasic carboxylic acid, with a sulfur-containing carboxylic acid being subsequently added to the solution whereby the catalytic component is dispersed in a subsurface layer on the carrier material and penetration beyond the desired subsurface layer is substantially obviated. Prior to calcining, the impregnated carrier material is further impregnated with an alkaline earth metal salt of an organic acid, and the solution evaporated to dryness in contact with the impregnated carrier material.

Abstract: An improved form of solar heat absorbing tubing comprises a plastic material which contains small subdivided black body absorber particles being fully distributed throughout the thickness of the tubing. A preferred form of tubing will utilize electrical conductive carbon, or carbonized particles, in an amount to provide conductivity to the resulting tubing such that there may be electroplating or electrostatic spray coating for the tubing to still further enhance its absorptive and reradiation properties.

Abstract: A process for hydrotreating (hydroprocessing) hydrocarbons and mixtures of hydrocarbons utilizing a catalytic composite of a porous carrier material, a platinum or palladium component, an iridium component and a germanium component, in which process there is effected a chemical consumption of hydrogen. A specific example of one such catalyst is a composite of a crystalline aluminosilicate, a platinum component, an iridium component and a germanium component, for utilization in a hydrocracking process. Other hydrocarbon hydroprocesses are directed toward the hydrogenation of aromatic nuclei, the ring-opening of cyclic hydrocarbons, desulfurization, denitrification, hydrogenation, etc.

Abstract: An improved process for the separation of a para-cresol from a feed mixture containing para-cresol and at least one other cresol isomer which process employs a crystalline aluminosilicate adsorbent to selectively adsorb para-cresol from the feed mixture. The improvement basically comprises employing a desorbent material comprising an alcohol to increase the selectivity of the adsorbent for para-cresol thereby allowing a more efficient separation with a higher purity extract stream recovered from the process.

Abstract: Navigation table attachable by an arm to the base of an aircraft seat can be folded to a storage position beside the seat when not in use. The table surface comprises the top of a box which can be used for the storage of maps or papers. The box is mounted so that it can be easily removed from the seat and used by the pilot like a small attache case to transport maps and other materials to and from the aircraft. A plurality of adjustments on the table mounting arm permit the table surface to have its surface angle varied in addition to being movable, sideways, up and down and fore and aft.

Abstract: A method of forming membrane covered laminate strips of a desired predetermined length from an elongated porous strip wherein said strip is impregnated at spaced predetermined sections with a fluid seal material to preclude fluid flow through such sections and is also coated on each face with a suitable membrane forming coating material to thereby form a laminate strip suitable for reverse osmosis and/or ultrafiltration usage. The resulting laminate strip is provided with a punched hole in a portion of the impregnated section to effect a fluid passageway opening therethrough and, additionally, is cut transversely through an intermediate portion of such section to result in the formation of a multiplicity of predetermined length laminate strips. A plurality of stacked strips, with the punched hole positions staggered in adjacent strips, or groups of strips, provides a simplified form of apparatus with an elongated serpentine flow path therethrough for separating the constituents of a fluid feed stream.

Abstract: A gasoline fraction is catalytically reformed by contacting the gasoline fraction and a hydrogen stream at reforming conditions with an activated bimetallic acidic catalytic composite comprising a combination of a platinum group component, a tin component and a halogen component with a porous carrier material, the catalytic composite having been activated by contacting same with an activating gas comprising oxygen and a halogenating component selected from the group consisting of halogen and hydrogen halide at a temperature between 700.degree. and 1100.degree. F. for a time of at least 0.5 to about 10 hours.

Abstract: Side arm for a vehicle seat may be pushed on or pulled off a mounting bracket attached to the frame of the seat without disturbing the upholstery of either the seat or the arm. The arm has three pins of different lengths which are pushed into three holes in the mounting bracket. The intermediate length pin is mounted near one end of a normally bowed spring plate so as to normally be axially skewed relative to the other pins. During assembly, a chamfered guiding surface on the lead end of the shortest pin engages the edge of a hole in the mounting bracket. As the short pin is pushed through the plate portion of the bracket, it initially forces the skewed pin to move relative to the arm so as to bend the spring and cause the skewed pin to become parallel to the other pins. After the skewed pin has passed through the plate the skewed pin returns under the force of the spring to its skewed position to retain the arm on the bracket.

Abstract: A novel antioxidant utilized in a rubber-substrate comprising a mono- or di(heterocyclic nitrogen)-substituted diarylalkane is disclosed.