Abstract: Novel rust inhibitors for hydrocarbon fuels and oils are provided. Also, novel photo-adducts of dimethylmaleic anhydride and olefins useful as rust inhibitors.

Abstract: An in situ process and ignition procedure are provided to retort oil shale which increases product yield and enhances uniformity of the flame front in an underground retort. In the process, a portion of the rubblized mass of oil shale is preheated with steam, nitrogen or some other inert gas, to at least the minimum oil shale ignition temperature and preferably retorted. Thereafter, the preheated oil shale is ignited with hot excess air or some other oxygen-containing gas above the maximum desired retorting temperature to establish a generally uniform flame front across the retort. In the preferred form, the preheating gas and oxygen-containing gas are introduced into the retort at different times from the same specially configured downhole burner.

Abstract: This invention relates to improved hydrocarbon lubricating oil compositions. More particularly this invention relates to hydrocarbon oil compositions which possess improved oxidation inhibition properties through the presence of a new additive functioning as an antioxidant or as an antioxidant catalyst which acts as a chain terminating species for oxidation reactions.

Abstract: A bracing assembly for use in fluidized bed units having a number of cyclone separators equipped with diplegs is disclosed. The assembly comprises paired brace elements interconnecting adjacent diplegs to form a closed polygon whereby each dipleg in the polygon supports the others to eliminate sway or movement of the diplegs. The method of attachment of the brace elements is such as to accommodate large temperature differentials within the unit during operation and also between operation and shutdown without the creation of abnormal stresses. The assembly is particularly useful in the regenerator vessels of fluid catalytic cracking units.

Abstract: A Mannich condensation reaction of an alkyl phenol, a formaldehyde-yielding reagent, an amine, and about 0.001 to 2.0 moles of an oil soluble benzene sulfonic acid per mole of amine.

Abstract: A Mannich condensation reaction of an alkyl phenol, a formaldehyde-yielding reagent, an amine, and about 0.001 to 2.0 moles of an oil soluble benzene sulfonic acid per mole of amine.

Abstract: Injection moldable amide-imide homopolymers and copolymers containing titanates. These amide-imides are useful in engineering plastic applications.

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: Sulfur oxides are removed from a gas by an absorbent which comprises a physical mixture of (1) a particulate cracking catalyst comprising from about 0.5 to about 50 weight percent of a crystalline aluminosilicate zeolite which is distributed throughout a porous matrix wherein said matrix comprises from about 70 to about 100 weight percent of alumina and (2) a particulate solid other than cracking catalyst which comprises at least one inorganic oxide selected from the group consisting of the oxides of aluminum and magnesium 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 the ratio by weight of inorganic oxide or oxides to rare earth metal or metals is from about 1.0 to about 1,000. Absorbed sulfur oxides are recovered as a sulfur-containing gas comprising hydrogen sulfide by contacting the spent absorbent with a hydrocarbon at a temperature from about 375.degree. to about 900.degree. C.

Abstract: A titanium-containing olefin polymerization catalyst component comprises a titanium-containing component formed by reducing titanium tetrachloride with an organoaluminum compound, optionally contacting the resulting reduced solid with a pretreatment amount of alpha-olefin monomer under polymerization conditions, and reacting the resulting product with a Lewis base complexing agent and a haloalkylchlorosilane.

Abstract: A delayed coking and dedusting process in which dust laden heavy oil derived from solid hydrocarbon-containing material, such as oil shale, coal or tar sand, is preheated in a furnace and thermal cracked in a retort to yield light oils and middle oils. Preferably, steam is injected into the dust laden heavy oil before the dusty oil is heated in the furnace to minimize coking in furnace tubes and furnace outlet lines. The thermal cracked dusty oil leaves a residual dust enriched, coked material that can be combusted to provide a portion of the solid heat carrier material for use in retorting oil shale, coal or tar sand.

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: The method of converting at least 20% by weight of a vacuum gas oil fraction boiling above 650.degree. F. into products having a boiling point less than about 650.degree. F., which comprises hydrotreating a vacuum gas oil with a hydrodesulfurization catalyst comprising a Group VIB and Group VIII metal wherein an organic fluorine compound is added to the vacuum gas oil during hydrotreating and the vacuum gas oil is hydrotreated under hydrogen at a temperature of at least 740.degree. F.

Abstract: Polyolefin polymer powder containing active catalyst residues is deactivated by contacting such powder with a mixture containing an inert gas and an ammonium salt in a dry state.

Abstract: Novel polyamides are prepared for itaconic acid, other diacids and diamines. These polyamides are useful as molded objects, fibers, films, laminates and coatings.

Abstract: Foamed thermopolastic resin comprising poly (p-methylenebenzoate) suitable for structural foam injection molded parts.

Abstract: A reclaim system for plastic bottles whereby the bottles are held between moving belts and the contaminated portion sawed from the uncontaminated portion, thereby permitting suitable reclaim of the respective parts. The method of operation is also shown.

Abstract: Novel polyamides are prepared from itaconic acid and diamines. These polyamides are useful as molded objects, fibers, films, laminates and coatings.

Abstract: A hydrocarbon conversion catalyst system comprising a mixture of a first catalyst containing a noble metal component deposed on a refractory inorganic oxide and a second catalyst containing a non-noble metal component deposed on a support containing a refractory inorganic oxide and a crystalline aluminosilicate material, and a reforming method employing such catalyst system are disclosed.

Abstract: A novel catalyst for the oxidation of butane to produce maleic anhydride comprising a phosphorus and vanadium mixed oxide wherein the catalyst is prepared by using P.sub.2 O.sub.5 in an organic medium wherein the catalyst is not precipitated. The catalyst has a specific phase identified by a characteristic X-ray diffraction pattern. A process for the manufacture of the catalyst and a process for the manufacture of maleic anhydride from butane feedstock utilizing the novel catalyst is disclosed. Maleic anhydride is a well-known industrial chemical used in the manufacture of polyester, and maleic anhydride also has utility as a food stuff.