Abstract: Co-polyoxadiazoles prepared from 5-t-butylisophthalic acid and common organic diacids are disclosed. They are useful as fibers, films, coatings, felts, laminates and molded objects.

Abstract: A process for the removal of para-toluic acid from purified terephthalic acid is disclosed. This process comprises extracting the para-toluic acid with paraxylene from the aqueous terephthalic acid-water phase and recycling the para-toluic acid and paraxylene to the paraxylene oxidation reactor. The process improves the overall yield of purified terephthalic acid recovered. Purified terephthalic acid is used as a basic raw material in the manufacture of polyester fibers and films.

Abstract: Molybdenum compositions suitable for improving the properties of lubricants and fuels comprise the reaction product of molybdenum and a polyamine Mannich reaction product, a polyamine hydrocarbyl-substituted dicarboxylic acid compound reaction product, and the oxidized and/or sulfurized reaction products thereof.

Abstract: A process to convert a normal butene to isomerized products comprises contacting such alkene under conversion conditions with a hydrogen form AMS-1B borosilicate catalyst composition at a conversion temperature below 250.degree. C.

Abstract: A process to convert an alkene to oligomerized, aromatized and isomerized products comprises contacting such alkene under conversion conditions with an AMS-1B borosilicate catalyst composition.

Abstract: An absorbent for sulfur oxides comprising an inorganic oxide composition in association with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium and dysprosium, wherein said inorganic oxide composition is selected from the group consisting of MgAl.sub.2 O.sub.4, mixtures of alumina with magnesium oxide and mixtures of magnesium oxide with MgAl.sub.2 O.sub.4. The absorbent can be circulated through a fluidized catalytic cracking process together with hydrocarbon cracking catalyst to reduce sulfur oxide emissions from the regeneration zone.

Abstract: Diesters of phosphorodithioic acid are stabilized against thermal decomposition by the addition of small amounts of a stabilizer which is selected from the group consisting of ammonia, ammonium carbonate, ammonium salts of carboxylic acids, the oxides, hydroxides and carbonates of lithium, sodium, potassium, rubidium, cesium, berylium, magnesium, calcium, strontium and barium, and mixtures thereof.

Abstract: A method for producing branched aliphatic hydrocarbons by reacting H.sub.2 with a C.sub.1 -C.sub.6 alcohol and/or a C.sub.2 -C.sub.6 olefin in the presence of a cadmium component and a support which comprises an amorphous refractory inorganic oxide, a pillared smectite or vermiculite clay, a molecular sieve consisting essentially of unexchanged or cation-exchanged chabazite, clinoptilite, zeolite A, zeolite L, zeolite X, zeolite Y, ultrastable zeolite Y, or crystalline borosilicate molecular sieve, or a combination thereof.

Abstract: An oil shale process is provided to retort oil shale and purify oil shale retort water. In the process, raw oil shale is retorted in an in situ underground retort or in an above ground retort to liberate shale oil, light hydrocarbon gases and oil shale retort water. The retort water is separated from the shale oil and gases in a sump or in a fractionator or quench tower followed by an API oil/water separator. After the retort water is separated from the shale oil, the retort water is steam stripped, carbon adsorbed and biologically treated, preferably by granular carbon adsorbers followed by activated sludge treatment or by activated sludge containing powdered activated carbon. The retort water can be granularly filtered before being steam stripped. The purified retort water can be used in various other oil shale processes, such as dedusting, scrubbing, spent shale moisturing, backfilling, in situ feed gas injection and pulsed combustion.

Abstract: A catalyst support is prepared from a composite comprising two or more inorganic oxides by forming the composite into a shaped support material having at least 0.8 cc/gm of its pore volume in pore diameters of 0 nm (0 .ANG.) to 120 nm (1,200 .ANG.) and at least 0.1 cc/gm of its pore volume in pore diameters of 120 nm (1,200 .ANG.) to 5,000 nm (50,000 .ANG.) and heating said shaped support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped support in the absence of any appreciable reduction in pore volume. The inorganic oxide composite is selected from the group consisting of a mixture of alumina and silica; a mixture of alumina, silica, and oxides of phosphorus; a mixture of alumina and oxides of phosphorus; a mixture of alumina and boria; a mixture of alumina, boria and oxides of phosphorus; and a mixture of alumina, magnesia, and oxides of phosphorus, the oxides of phosphorus being calculated as P.sub.

Abstract: Crystalline copolyamides from terephthalic acid and mixtures of hexamethylenediamine and trimethylhexamethylenediamine and filled molding compositions prepared therefrom are disclosed. The injection moldable crystalline copolyamides in molded form are useful in engineering resin applications such as the hood of an automobile, a shroud for a lawn mower, chain saw guard, etc.

Abstract: Disclosed is a method for the catalytic hydroliquefaction of solid carbonaceous material with a catalyst consisting essentially of Cr and Mo on a support or Cr, Mo and either CO or Ni on a support. The average pore diameter should be within 100-200.ANG. .

Abstract: A burner distributor tip for projecting a fuel-oxygen mixture from a premix-type gaseous fuel burning system to a refractory furnace surface is disclosed.

Abstract: A corrosion-resistant, multilayer photoelectrode for use in a photoelectrochemical cell and a process for producing said photoelectrode by preparing an effective layer of an insulator material containing aliovalent dopant ions on a base semiconductor and depositing a layer of conducting material on said layer of insulating material.

Abstract: Cyclic dianhydrides and polyimides are prepared from maleic anhydride compounds and diolefins. The diolefins are alpha-, omega-linear diolefins of up to 100 carbon atoms or cyclic diolefins of up to 40 carbon atoms. The polyimides and copolyimides prepared from these cyclic dianhydrides are useful in films, fibers and coatings.

Abstract: A process for reacting an aromatic compound, hydrogen and at least one of carbon monoxide and an alcohol containing from 1 to 6 carbon atoms in the presence of a cadmium-containing catalyst is disclosed.

Abstract: A straight-through four reactor system and process is disclosed for obtaining high levels of sulfur recovery from acid gas at a cost equal to or less than that required for a standard modified four reactor Claus system. Two conventional Claus reactors and two cold bed adsorption (CBA) reactors are in series. Four condensers are provided, one disposed before each of the Claus and CBA catalytic reactors. A first heater and a first bypass line is disposed between the second condenser and the second catalytic reactor (second Claus reactor) and a second heater and a second bypass line is disposed between the third condenser and the third catalytic reactor (first CBA reactor). The system is designed to operate either with both CBA reactors in a recovery mode or with one CBA reactor in a regeneration mode and the other CBA reactor in a recovery mode. When both reactors are operating in the recovery mode, the system is similar to the standard modified Claus system.

Abstract: A novel polyoxadiazole from 5-t-butylisophthalic acid is disclosed. Also, fibers, films, coatings and molded objects made therefrom.

Abstract: A Mannich condensation product of an amorphous, oil soluble olefin/carbonyl polymer, amine and formaldehyde yielding reactant wherein the carbonyl groups are provided by at least one member selected from the group consisting of carbon monoxide and vinyl alkyl ketone and lube oil compositions comprising said polymers.

Abstract: Hydrocarbon conversion process 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.