Abstract: A method of forming an oxidation resistant aluminum coating on a carbon-carbon composite comprising applying a slurry over the carbon-carbon composite, composed of an aluminum intermetallic in a liquid suspending vehicle including a high char yield adhesive thermoplastic and a glassy carbon, distributing aluminum, in elemental form, over the coated surface and reacting the composite and coating in a furnace.

Abstract: Particles of intercalated graphite are formed by treating graphite particles with an intercalant and contacting the graphite particles with an organic molecule having C.sub.8 -C.sub.30 carbon atoms and a polar end functional group.

Abstract: A room temperature setting carbonaceous cement comprising a solid carbonaceous material, a catalyst and a liquid carbonizable component, and a boron containing or phosphorus containing material, which when treated with the catalyst will possess increased oxidation resistance at elevated temperatures.

Abstract: A halogenated or sulfonated active carbon which has a high storage capacity for methane is provided from selected halogens in elemental form or solutions of such halogens or from solutions of sulfuric acid, fuming sulfuric acid, sulfur trioxide.

Abstract: Threaded nipple for joining two electrode sections is provided with an integral ridge intermediate its threads for centering the electrodes in coaxial alignment.

Abstract: Hood assembly for pneumatic process metallurgical vessel, such as BOF, which includes removeable spray cooled sub-assemblies at predetermined locations in the hood assembly.

Abstract: A room temperature setting carbonaceous cement comprising a solid carbonaceous material, a catalyst and a liquid carbonizable component which when treated with the catalyst will provide a carbon yield of at least 40% at an elevated baking temperature and possess a flexural strength which is above at least 750 psi at room temperature and at said elevated temperature.

Abstract: An article, such as a seal ring, suitable for reduction of chatter when used in stuffing boxes with reciprocating stems. The article has an amorphous carbon phase at the surface of the article with the amorphous carbon phase extending into the article from the surface.

Abstract: Composites of flexible graphite particles and an amorphous carbon phase useful for applications such as valve packing end rings.

Abstract: Method and assembly for reinforcing flexible graphite by fusion bonding a film of thermoplastic polymer to the flexible graphite to form a laminiated product. One side of the thermoplastic polymer is raised to its softening temperature to cause it to bond to the flexible graphite while the opposite side thereof is maintained at a temperature below its softening point.

Abstract: A flexible graphite laminate of flexible graphite and a core material bonded through an intermediate coating of an epoxy resin composite comprising an epoxy resin having a glass transition temperature after cure of below 120.degree. C. and particles of a thermoplastic agent dispersed in the epoxy resin and having a crystalline or partially crystalline structure and a melting temperature of between 120.degree. C. and 200.degree. C.

Abstract: A fire retardant flexible graphite composite is formed from particles of exfoliated flexible graphite and particles of unexfoliated graphite flake treated with an intercalating agent in a desired ratio based upon the strength and desired fire retardant properties of the composite. A wall or floor covering is formed by compressing the composite into a sheet and rolled into a roll.

Abstract: A premium coke is produced from a decant oil resulting from the catalytic cracking of petroleum oil by selectively hydrodesulfurizing the decant oil and then subjecting the hydrodesulfurized decant oil to delayed coking.

Abstract: An expandable carbonaceous paste comprising natural graphite flakes and expandable graphite flakes such as acid treated graphite flakes, mixed with a hydrocarbon viscous liquid such as tar so that when the paste is exposed to heat, the paste will expand and have good thermal conductivity characteristics and then upon further heating the paste will convert to a rigid carbon structure.

Abstract: A process for forming pinhole free ultra-thin flexible sheet material from natural graphite comprising treating low ash natural graphite particles with an oxidizing agent to intercalate the graphite, introducing the particles after they are dried to less than 2% by weight water into a furnace preheated to at least 2000.degree. F. to cause rapid expansion to a specific volume of at least 800 cc/gm and compressing the expanded graphite to below 8 mils in thickness with a density of less than 1.3 g/cc.

Abstract: A process for treating an electrode to form a protective coating comprising applying a precursor of an impregnate material to the surface, controlling the depth of penetration, induction heating the surface under controlled conditions of power, frequency and relative velocity to bring the surface to the treat temperature and quench cooling the surface.

Abstract: An expandable seal of flexible graphite composed of a prestressed flexible graphite composition of a mixture of flexible graphite and a thermoplastic material having a preselected melting temperature corresponding to the temperature at which the seal is to commence expansion. The flexible graphite composition is prestressed under a compressive force and a temperature such that the thermoplastic material is in a plastic state.

Abstract: A process for treating high sulfur petroleum coke to inhibit puffing is disclosed wherein particles of the petroleum coke are contacted with a compound containing an alkali or alkaline earth metal selected from the group consisting of sodium, potassium, calcium and magnesium, at an elevated temperature above that at which the alkali or alkaline earth metal compound begins to react with carbon, but below the temperature at which the coke particles would begin to puff in the absence of the compound. The coke particles are maintained at an elevated temperature for a sufficient period of time to permit the reaction to proceed and allow products of reaction to penetrate into the particles and form an alkali-or alkaline-earth-metal-containing deposit throughout the mass of the particles; and then cooling the so-treated coke particles.

Abstract: The electric furnace operating cycle time is substantially reduced by directing water into the porous pack of carbonaceous material surrounding the electrodes at a water rate adjusted to maximize vaporization of water into steam within the porous pack while allowing the steam to escape without contacting the electrodes.

Abstract: A cover for a vessel handling heated substances, such as a furnace, in which the cover comprises an outer segment defining an opening in which a removable inner cover segment (delta) is seated and wherein said inner cover segment comprises spaced apart walls defining an enclosed space that contains coolant spray means adapted for spraying coolant onto the wall that is closest to the interior of the vessel.