Abstract: A one-step dewaxing and stabilizing process for hydrocracked lube oils is disclosed wherein said process employs an intermediate pore size zeolite having a high silica-alumina ratio and being free of hydrogenation components and said process being operated at pressures of less than 13 bar.

Abstract: A process and apparatus for direct coking of tar sands which includes contacting the tar sand with heat transfer particles resulting from combustion of coked sand effluent from the coking process, and transporting the combination up a riser/mixer to a coking vessel whereby separation of oil and hydrocarbon gases from the sand is initiated. The tar sand is introduced into a fluid coking vessel which has at least two coking zones. The first coking zone is substantially at the top of the vessel whereas the second coking zone is immediately below the first coking zone and includes a stream of hot spent sand so that a more severe coking temperature is present in the second coking zone. A product stream of oil and light hydrocarbon gases, recovered from the riser/mixer and coking process, is directed to a separator located above said coking vessel in which the heavy oil is removed and preferably directed to the second coking zone.

Abstract: A catalyst nominally containing zeolite, clay and silica-alumina gel is disclosed. The zeolite is preferably partially exchanged with high La/Ce ratio solution in a wetting step. The catalyst and processes for its manufacture and use are disclosed. The catalyst is excellent for processing heavy oils, generally produces higher LCO/slurry oil ratio and has high metals tolerance.

Abstract: An improved hydroconversion process for carbonaceous materials wherein a monohydrocarbyl substituted dithiocarbamate of a metal selected from Group VIII-A of the Periodic Table of Elements or a mixture thereof is used as a catalyst precursor. The improved process is effective for both normally solid and normally liquid carbonaceous materials and for carbonaceous materials which are either solid or liquid at the conversion conditions. The hydroconversion will be accomplished at a temperature within the range from about 500.degree. to about 900.degree. F., at a total pressure within the range from about 500 to 7000 psig and at a hydrogen partial pressure within the range from about 400 to about 5000 psig.

Abstract: Catalysts useful for the partial oxidation of non-aromatic hydrocarbons, particularly n-butane, with molecular oxygen or a molecular oxygen-containing gas in the vapor phase to produce maleic anhydride are provided which comprise mixed oxides of phosphorus and vanadium. The catalysts are highly effective in that they exhibit a weight/weight productivity of at least 70 grams of maleic anhydride per kilogram of catalyst per hour.

Abstract: A hydrocarbon containing feed stream, e.g., a heavy oil or residuum, is contacted under suitable reaction conditions with a carbon monoxide containing gas, so as to produce a hydrocarbon stream having a reduced level of metal impurities, especially nickel and vanadium compounds, and an increased API.sup.60 gravity, essentially in the absence of a catalyst or extractant.

Abstract: Dienes are prepared by dehydration of aldehydes at elevated temperatures by a method in which the dehydration is carried out using a zeolite as a catalyst.

Abstract: Ethyltoluene is oxidatively dehydrogenated to methylstyrene selectivity and in high conversions by treatment with hydrogen sulfide and oxygen at elevated temperatures of about 450.degree. C. to 700.degree. C. over magnesium oxide catalyst.

Abstract: Titanium-iron alloys, conditioned or activated to be reversible hydride formers, function as catalysts to promote gas phase hydrogenation and, dehydrogenation reactions. In the hydride form in the presence of hydrogen, the alloys catalyze hydrogenation of C.tbd.C, C.dbd.C, C.tbd.O, C.dbd.O, C.dbd.N, C.tbd.N, N.dbd.O, N.dbd.N and N.tbd.N bonds. Of particular utility is the synthesis of ammonia from a hydrogen-nitrogen mixture at relatively low temperature and pressure. In the unhydrided or metallic form the alloys dehydrogenate C--C, C.dbd.C, C--H and C--N bonds where hydrogen is attached to these groups. Of particular utility is the dehydrogenation of ethane to form ethylene at relatively low temperature and where increased pressure increases the percentage of ethane converted to ethylene.

Abstract: This invention relates to an improvement in a process for producing isobutylene by the cyclic, adiabatic dehydrogenation of isobutane. The improvement resides in diluting an isobutane feed stream with n-butane in an amount from about 3-7% by volume and recycling unreacted products plus nC.sub.4 unsaturates from the dehydrogenation zone. Additional coke is made by virtue of the use of n-butane and recycle to permit lower feed input temperature.

Abstract: Disclosed is a one-step method of producing an industrial asphalt from a bituminous material which comprises mixing together without air-blowing:(a) a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350 degrees Fahrenheit and wherein the feed petroleum residuum forms a single phase when mixed with 5 percent of 98 percent sulfuric acid; and(b) from about 0.1 to 20.0 percent by weight of sulfuric acid, said mixing being done at a temperature in the range of 351 to 600 degrees Fahrenheit, whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.

Abstract: A gas-liquid or a gas-liquid-solid feed is contacted in a vessel containing a packed bed of contact particles. At least a portion of the feed is passed upwardly through the packed bed and the mass flow rate of the feed is periodically increased sufficiently to cause a portion of the particles within the vessel to form an expanded region within the packed bed.

Abstract: A upgrading method of low-rank coal containing higher ash and moisture contents into coal decreased in ash content and decreased in moisture content and heightened in heating value includes subjecting the low-rank coal to a low-temperature dry distillation treatment, pulverizing the dry-distilled low-rank coal to form a coal-water slurry and adding a binder to the slurry to effect oil agglomeration of the coal and promote separation of the ash.

Abstract: A process is provided for using a reactivated catalyst composition comprising a crystalline zeolite material having a silicon/aluminum atomic ratio of at least about 3.5, said catalyst composition having been deactivated by contact with steam. The reactivation method involves the necessary steps of contacting said steam-deactivated catalyst composition with a metal salt solution, followed by contacting said metal salt solution contacted catalyst composition with an aqueous ammonium ion-containing solution.

Abstract: A process is disclosed of separating fine solids from oil in which the solids are dispersed which comprising contacting said oil with a combination of a compressed above-critical gas and an entraining agent at such temperature and such pressure that the system consisting of the oil, entraining agent and above-critical gas constitutes a single phase, withdrawing and separating the so-withdrawn phase into a liquid phase rich in oil and a gas phase lean in oil, the single-phase mixture of oil, entraining agent and above-critical gas from the solids.

Abstract: A system for delivering a drug to a patient according to the preferred embodiment of the present invention is shown as being of modular construction including a control module and a reservoir module. The reservoir module is removably secured to the control module by a removable hinge member at one end and a locking member at the other end. The reservoir module includes a pressure plate upon which a tube extending from a drug container bag to the patient is supported. The control module includes a pumping mechanism including a camshaft which reciprocates valves and an expulsor in the control module. The valves and expulsor engage and interact with the tube located on the pressure plate for forcing the drug from the drug container bag to the patient. In its most preferred form, the pressure plate includes standoffs which abut with the pump chassis for insuring proper spacing maintenance between the pressure plate of the reservoir module and the control module.

Abstract: Polyisobutylene is prepared from a mixed C.sub.4 hydrocarbon feedstream using an AlCl.sub.3 --HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the feedstream. Polymer product having a very narrow molecular weight distribution is obtained over the Mn range of 700 to 3,000. Dispersants derived from this polyisobutylene exhibit substantially improved performance in lubricating oil compositions.

Abstract: The invention relates to suturing instrument for joining two edges of biological tissue together. The instrument includes a housing (1) in which there is movably arranged an arcuate suture needle (16) having a point (17) arranged to penetrate the tissue, and the suture thread (18) connected to the suture needle. Drive means (3,8,11,12,13) are provided for causing the needle (16) to move in a manner such as to pass the thread thereon through one of the tissue edges and up through the other of the tissue edges, to join the two edges together with a firm suture. The novel feature of the instrument resides in the fact that the end of the suture needle remote from the point (17) thereof is connected to the suture thread and is arranged to be driven in the direction of the point (17) in a closed path by the drive means.

Abstract: A process for producing lower molecular weight products from higher molecular weight hydrocarbon liquid feedstock components is provided wherein the feedstock is contacted with an optimum catalyst comprising a molten salt of a tetrachloroaluminate. Selection of the optimum catalyst is based on the electronegativity of the tetrachloroaluminate catalyst cation.

Abstract: A catalyst for production of methacrylic acid, said catalyst being molded in a ring-like shape having an outside diameter of 3.0 to 10.0 mm, an inside diameter 0.1 to 0.7 times the outside diameter and a length 0.5 to 2.0 times the outside diameter, said catalyst comprising a catalytically active material having the composition represented by the following general formulaMo.sub.a P.sub.b A.sub.c B.sub.d C.sub.e D.sub.f O.sub.