Abstract: A centrifugal drying and dedusting process is provided to dedust heavy oil derived from solid hydrocarbon-containing material such as oil shale, coal or tar sand. In the process, heavy oil laden with particulates derived from the solid hydrocarbon-containing material is centrifuged into a dedusted stream of heavy oil and a dust laden centrifuge sludge. The dedusted stream of oil can be further dedusted in a desalter, after being first mixed with fresh water, to form a purified, highly dedusted, effluent stream of heavy oil. Dust laden water from the desalter is centrifuged into a dedusted stream of water and a dewatered centrifuge sludge. The dedusted stream of water is recycled upstream of the desalter and mixed with the influent oil stream. Desirably, the centrifuges sludges are mixed, heated, dried and separated into another dedusted stream of oil and a powdery, dust-enriched residual stream which can be combusted in a lift pipe for use as heat carrier material in the dryer and retort.

Abstract: Claus plant tail gas is treated to further reduce sulfur content by hydrogenating all sulfur compounds to hydrogen sulfide, pressurizing the resulting stream and cooling to reduce water content therein, and removing hydrogen sulfide from the resulting stream of reduced water content.

Abstract: A heat treatment for live yeast cell slurries and pastes, which comprises heating the slurry or paste at a temperature of about 60.degree. C. or greater for a sufficient period of time, increases the fluidity of the slurry or paste and allows more highly concentrated suspensions to be processed than otherwise possible.

Abstract: The catalyst comprises a physical particle-form mixture of a Component A, a Component B, and a Component C, said Component A comprising at least one Group VIII noble metal, preferably platinum, deposed on a solid catalyst support material providing acidic catalytic sites, said Component B comprising a small amount of a non-noble metal of Group VIII selected from cobalt, nickel, and mixtures thereof, preferably cobalt, on a solid catalyst support material providing acidic catalytic sites, said Component C comprising a small amount of gallium deposed on a solid catalyst support material providing acidic catalytic sites, and said catalyst having been prepared by thoroughly and intimately blending finely-divided particles of said Components A, B, and C to provide a thoroughly-blended composite.The catalyst can be employed suitably in a hydrocarbon conversion process.

Abstract: Carbon dioxide is removed from CO.sub.2 and hydrocarbon containing gaseous streams. In the instance where the hydrocarbons and CO.sub.2 are such that hydrocarbons would condense out during CO.sub.2 removal, the gas stream is treated in one or more stages to accomplish hydrocarbon composition control.

Abstract: A process for producing a purified terephthalic acid which comprises reacting in a liquid phase a mixture of hydrogen and crude terephthalic acid, a palladium/rhodium catalyst on a porous carbonaceous support wherein the catalyst compound is prepared by adsorbing palladium on the support from a complex salt formed in the presence of an amine and acetic acid, followed by deposition of rhodium from a solution of sodium hexanitritorhodate.

Abstract: Lubricating oil composition comprising the reaction product of a phenolic compound, a molybdenum, an amine and sulfur or a sulfur-yielding compound. Preferably, molybdenum oxide, an alkyl-substituted phenol having an alkyl side chain of at least 9 carbon atoms, an amine having at least one aliphatic hydrocarbon-based radical or aliphatic-substituted aromatic radical and elemental sulfur are reacted to produce the reaction product of the invention.

Abstract: A catalyst and process for purifying crude terephthalic acid wherein the catalyst is prepared by contacting a carbonaceous support with an aqueous solution of sodium tetranitropalladate.

Abstract: Flow properties of polyamide-imide polymers are improved by the addition of amorphous polyamides. These polymers are useful as engineering resins, laminates, and molded objects.

Abstract: A plugging apparatus is provided to reliably plug a bottomless blast hole in underground oil shale retorts and oil and gas wells. The plugging apparatus has a special electrically powered sequencer which automatically lowers and releases a bag of cementatious slurry, supported by a drainpipe-reinforced concrete disc, from a canister to form a composite blasting plug in the blast hole.

Abstract: Polybutene polymers and polybutene-1 polymers are prepared from a feed stream which has been fractionated to remove no more than about 50 (wt) % of the cis-2-butene originally present.

Abstract: An improved process is provided for blasting in situ oil shale retorts, and oil and gas wells. In the process, a specially formed concrete plug is installed at a desired depth in a bottomless blast hole and an explosive charge is placed upon the plug and detonated to blast the underground formation. The plug is accurately and reliably set by lowering a canister, which releasably houses a bag support assembly supporting a bag of concrete slurry, to a desired depth into the blast hole. The bag support assembly and bag of wet concrete are subsequently dropped a fixed distance below the canister. The bag of concrete expands, dries, and hardens against the walls of the blast hole to form a permanent stationary plug across the blast hole. In the preferred process, the bag support assembly is formed by casting a concrete disc around a drainpipe, and the bag support assembly is lowered and released from the canister with the aid of an electrically powered sequencer.

Abstract: A horizontal fluid bed retorting process is provided for preheating, retorting, combusting, and recovering heat from oil shale and other solid hydrocarbon-containing material. In the process, the combustor and heat recovery chambers share a common heat-conductive metal wall with and are positioned in side-by-side relationship to the cellular preheating and retorting chambers. The heat of combustion in the combustor and the heat recovered from the combusted shale or other material in the heat recovery chamber are transferred by conduction into the retorting and preheating chambers, respectively, to provide the process heat requirements for preheating and retorting the oil shale or other feed. The oil shale or other feed is fluidly moved in a generally horizontal S-shaped flow pattern through the preheating and retorting chambers in countercurrent flow to the combusted material in the combustor and heat recovery chambers.

Abstract: A lubricant and fuel composition comprising di-n-hexyl 1,3-cyclohexanedicarboxylate.

Abstract: Excess heat generated in a thermal reaction zone of a Claus sulfur recovery plant is used, by means of a high boiling point heat transfer medium, to reheat the Claus plant process stream prior to high temperature Claus catalytic conversion, and/or to regenerate Claus catalyst on which sulfur is deposited, or for other functions. In another aspect, low temperature Claus catalytic converters are operated at equivalent pressures during a cycle comprising an adsorption phase, a regeneration phase, and a cooling phase.

Abstract: A process for hydrotreating a whole shale oil or a shale oil fraction containing at least about 0.1 wt. % nitrogen comprises a catalyst comprising a chromium component, a molybdenum component, a phosphorus component, and at least one of a cobalt component and a nickel component, deposed on a support comprising at least one porous refractory inorganic oxide. Hydrotreatment comprises contacting a hydrocarbon stream, e.g., a whole shale oil. with hydrogen in the presence of the invented catalyst under hydrotreatment conditions.

Abstract: There is provided a catalytic composition which comprises a molecular sieve-containing component and a porous refractory inorganic oxide, said component and said refractory inorganic oxide having been intimately admixed with one another, said component comprising a mixture of a crystalline chromosilicate and an oxide of chromium, providing a specific X-ray diffraction pattern, and having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:Cr.sub.2 O.sub.3 : YSiO.sub.2 : ZH.sub.2 O,wherein M is at least one cation having a valence of n, Y is a value within the range of about 4 to about 200, and Z is a value within the range of about 0 to about 160. There is also provided a method for preparing such a catalytic composition.There is provided a process for the conversion of a hydrocarbon stream, which process comprises contacting said stream at conversion conditions with the above catalytic composition.

Abstract: This invention relates to sheet materials, on which a coating is applied and which are used for pressure sensitive carbonless copying systems, wherein at least one of the components responsible for color development in the coating is a predominantly white four layer structured lamelar ground chlorite mineral having an iron content of about 0.5% to 8% by weight preferably of about 3% by weight.The components responsible for color development in the coating are preferably composed by 40 to 60% by weight of said ground chlorite mineral and 60 to 40% by weight of activated montmorillonite or bentonite or smectite clay.

Abstract: Hydrocarbon conversion catalyst comprising an active metallic component comprising at least one metal having hydrocarbon conversion activity and at least one oxygenated phosphorus component, and a support component comprising at least one porous refractory inorganic oxide matrix component and at least one crystalline molecular sieve zeolite component.

Abstract: A lightweight composite connecting rod is provided to decrease fuel consumption, attenuate noise, and permit increased speed of operation.