Abstract: Disclosed is a method and apparatus for mechanically and metallurgically holding a cutter in a drill bit pocket. The method includes using powder metallurgy techniques in the formation of a drill bit member having a plurality of pockets configured to inhibit displacement of cutters out of the pockets in a direction transverse to the drill bit working surface. The method further includes the steps of metallurgically bonding and mechanically engaging the cutter with the cutter pocket. The drill bit manufactured in accordance with the methods of the present invention include a carbide menstrum drill bit head having a working surface with a plurality of fluid courses and nozzles thereon in adjacent relationship with a plurality of cutter blade bands comprising a series of cutter pockets having cutters disposed therein in a fashion parallel with the working surface.

Abstract: A fluidized catalytic cracking unit wherein cyclone diplegs extend from the reactor vessel into the stripping vessel, for reducing the overall height of the unit. Valve means are provided at the lower end of the diplegs to prevent blow by of gas through the diplegs. The diplegs pass through the vent lines.

Abstract: A method for preventing fouling of equipment used in hydrocarbon processing is provided comprising adding to said hydrocarbon a polyalkyleneoxy sulfoxy salt represented by the formula: ##STR1## wherein R is a linear alkyl radical having from about 6 to 15 carbon atoms or an alkyl phenyl radical wherein the alkyl group contains from about 8 to 10 carbon atoms, R.sub.1 is H or CH.sub.3, n is a number from 3 to 8, x is 3 or 4 and M.sup.+ is an ammonium or an alkali metal cation.An antifouling formulation is also provided which comprises an alcohol-water dispersion of the above antifouling agent and a surfactant comprising a fatty acid dialkanol amide.

Abstract: Additives useful in producing foundry mold and core washes comprise either: a mixture of 66.75% to 80.05% of an organophilic clay and 19.95% to 33.25% of an alcohol soluble, hexane insoluble thermoplastic resin skin-forming agent; or 7.15% to 15.25% of an organophilic clay, 2.85% to 4.75% of the skin forming agent, and 80% to 90% of a refractory material having a particle size fo 200 mesh or finer.

Abstract: An improved dual fractionating process for hydrocarbons which employs a high pressure and a low pressure fractionating zone, light ends from the low pressure fractionating zone being introduced into the high pressure fractionating zone, heavy ends from the high pressure fractionating zone being introduced into the low pressure fractionating zone, the improvement being characterized by the introduction into one of the fractionating zones of a stable hydrocarbon stream, the hydrocarbon stream being stable under the conditions existing in the high pressure fractionating zone, at least a portion of the hydrocarbon stream having a boiling point lower than the boiling point of at least one of the unstable components which accumulates in the high pressure fractionating zone.

Abstract: A process for conversion of hydrogen and carbon monoxide into hydrocarbons in the presence of an ebullient bed of catalyst comprising reduced iron oxide promoted with potassium equivalent to 2-10 pounds potassium carbonate per 1000 pounds iron oxide catalyst, and having an average particle size in the range of 100-1000 microns, wherein the catalyst is chlorided for increasing the yield of C.sub.1 -C.sub.4 range hydrocarbons.

Abstract: Apparatus for the regeneration of fluidized solid catalyst including a regeneration chamber adapted to hold a fluidized solids bed, oxygen containing gas source communicating with the chamber, a tangential inlet communicating with the regeneration chamber to impart a swirling motion to spent catalyst entering the regeneration chamber and a free standing drawoff conduit disposed within the regeneration chamber, the drawoff conduit having an upper, open end in communication with the solids bed, the open end being formed by an obliquely truncated, outwardly flared portion of the conduit, the high portion of said truncated conduit lying closest the spent catalyst inlet.

Abstract: A process for manufacturing high dropping point aluminum complex soap thickened greases having selected consistency, water resistance, rheopectic properties, and antiwear properties.

Abstract: A solvent dewaxing process for removing wax from intermediate grade waxy petroleum distillate oils wherein a waxy oil stock, prediluted with 0-2 volumes dewaxing solvent is heated to a temperature in the range of about 110 to 130.degree. F for melting all wax therein; wherein the heated waxy oil stock/solvent mixture is cooled to about 5.degree. F above the depressed cloud point and is diluted with 1-5 volumes dewaxing solvent having a temperature 25.degree.-40.degree. F below the depressed cloud point for forming a wax/oil/solvent mixture having a temperature 5.degree.-15.degree. F below the depressed cloud point, and wherein the wax/oil/solvent mixture is further cooled at 1.degree.-8.degree. F/min. to a selected separation temperature in the range of 0 to -40.degree. F for precipitating additional wax. Precipitated wax is removed at the separation temperature to produce a wax free oil/solvent mixture which is subsequently fractionated to yield a dewaxed oil suitable for use in lubricating oils.

Abstract: An improved method of manufacturing shaped objects from cement wherein cement is wetted with an aqueous solution of an acetone-formaldehyde resin, optionally including a water-soluble alcohol, the wet mixture molded to the desired shape and then cured preferably at a temperature within the range of 30.degree. C to 100.degree. C, wherein the bending strength of the finished product is improved by incorporating a metal soap in the composite prior to molding the wet mixture.Also disclosed is an improved composition of matter comprising Portland cement, an acetone-formaldehyde resin and a metal soap, and optionally containing an inorganic aggregate.

Abstract: A process for enhanced recovery of petroleum from subterranean formations is disclosed, wherein steam is injected into a formation via an injection well, and a mixture of petroleum and steam condensate is produced via a production well, wherein the produced mixture is flashed for production of a steam-distilled hydrocarbon fraction, and wherein the steam distilled hydrocarbon fraction is injected, with additional steam, into a subterranean formation for increased recovery of petroleum. The process disclosed is particularly useful in recovery of heavy (low API gravity) petroleum.

Abstract: A solvent dewaxing process wherein a waxy oil charge, heated for melting wax therein, is cooled to a temperature about 5.degree.-15.degree. F below the cloud point, wherein the cooled waxy oil charge is mixed under conditions of good mixing with solvent having a temperature 20.degree.-40.degree. F above a selected separation temperature in a solvent to oil ratio of about 1:1 to 5:1 for precipitating wax from the resulting mixture, and wherein the wax/oil/solvent mixture is further cooled in a second cooling zone at a rate of ca. 1.degree.-8.degree. F./min to said selected separation temperature for precipitating additional wax. Precipitated wax is separated from the mixture at the separation temperature, producing a wax free solvent-oil solution. Dewaxed oil is recovered by fractionation from the wax free solvent-oil solution.

Abstract: A process wherein a light waxy petroleum distillate stock, having a viscosity less than about 200 SUS at 100.degree. F, is heated for melting any wax therein, wherein said heated waxy stock is incrementally mixed with a flowing stream of dewaxing solvent, having a temperature in the range of 40.degree.-80.degree. F, for forming an oil/solvent mixture at a temperature 5.degree.-10.degree. F below the depressed cloud point, and wherein the oil/solvent mixture is cooled at a uniform rate in the range of 1.degree.-8.degree. F/min. to a separation temperature in the range of +25.degree. to -40.degree. F for precipitating wax from said mixture.

Abstract: A process for dewaxing heavy distillate and residual petroleum oil stocks wherein a waxy oil stock, prediluted with 1-2.5 volumes dewaxing solvent, is cooled to about the depressed cloud point, wherein the cooled, prediluted waxy oil stock is treated with dewaxing solvent, in increments of 0.3-1.5 volumes each to a total dilution of 3.5 to 4 volumes solvent, under conditions of good mixing and cooling at about 1.degree.-8.degree. F/min, to a desired separation temperature for precipitating wax crystals and producing a dewaxed oil.

Abstract: A process for dewaxing a waxy petroleum distillate charge stock, wherein a mixture of waxy oil and solvent, heated for dissolving all solid wax therein, is cooled to a first temperature about 40.degree.-50.degree. F (22.degree. to 28.degree. C) above a selected separation temperature, and is held at such first temperature for a period of 1-2 minutes for equilibrating wax crystallization, wherein said oil-solvent mixture, at said first temperature, is cooled to a second temperature about 15.degree.14 20.degree. F (8.degree.-11.degree. C) above said separation temperature and is held at said second temperature for 1-2 minutes for equilibration of wax crystallization, wherein said oil-solvent mixture, at said second temperature, is cooled to said separation temperature, and wherein solid wax is separated from oil-solvent mixture at said separation temperature.

Abstract: A solvent dewaxing process wherein an intermediate range waxy distillate oil, heated for dissolving all wax therein, is mixed with about 1-4 volumes dewaxing solvent having a temperature in the range of 60.degree.-80.degree. F for forming an oil-solvent mixture having a temperature below depressed cloud point. The oil-solvent mixture is subsequently cooled at 1.degree.-8.degree. F/min to a selected separation temperature for precipitating wax and forming a first wax/oil/solvent mixture. Additional solvent, at about the separation temperature, is mixed with first wax/oil/solvent mixture in an amount equivalent to about 1-2 volumes of waxy oil charge for precipitating additional wax and forming a second wax/oil/sovent mixture. Precipitated wax is separated, at said separation temperature from said second wax/oil/solvent mixture.

Abstract: A process for dewaxing waxy petroleum distillate oil stock wherein one volume waxy oil stock is mixed with about 0.5-2 volumes aromatic hydrocarbon dewaxing solvent, and the oil/aromatic solvent mixture heated to a temperature for dissolving all solid wax therein, wherein the oil/aromatic solvent mixture is cooled at a rate of about 1.degree.-8.degree. F./min. to a selected separation temperature for precipitating wax crystals and forming a wax/oil/aromatic solvent mixture, wherein the wax/oil/aromatic solvent mixture is mixed with 0.5-2 volumes of ketone dewaxing solvent at said separation temperature for a residence time of about 15 seconds to two minutes for precipitating additional wax, and wherein solid wax and dewaxed oil are recovered as products of the process.

Abstract: In a fluidized catalytic cracking unit a riser discharge head for discharging catalyst and hydrocarbon vapor from a riser conduit substantially vertically downward into a vertical reaction vessel such that erosion of the discharge head and the reaction walls is avoided.

Abstract: A topped crude oil is admixed with a hydrocarbon solvent and centrifuged in the presence of a brine carrier to produce a hydrocarbon solvent-fuel oil mixture and a brine-asphalt-fuel oil mixture, the latter mixture being recovered and admixed with a ketone solvent which effects emulsion breaking and extracts residual fuel oil, a ketone solvent rich phase being subsequently recovered and subjected to fractionation to separate the fuel oil from the ketone solvent, the latter being recycled for further usage.

Abstract: A process is described herein for regeneration of spent, coke contaminated fluidized cracking catalyst by burning coke therefrom with a molecular oxygen containing regeneration gas in a fluidized dense phase bed, and for burning substantially all carbon monoxide formed to carbon dioxide. A method is provided for establishing a homogeneous dense phase fluidized bed of catalyst undergoing regeneration. Additionally, a method is provided for transferring heat from a dilute phase back to the fluidized dense phase catalyst bed.