Abstract: A bimodal ethylene-co-1-hexene copolymer consisting essentially of a higher molecular weight component and a lower molecular weight component and, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by a combination of high-load melt index, melt flow ratio, and melt elasticity properties. A blown film consisting essentially of the bimodal ethylene-co-1-hexene copolymer. A method of synthesizing the bimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the bimodal ethylene-co-1-hexene copolymer.

Abstract: The present invention is directed to a process for injecting iron oxide particles into a blast furnace through a pulverized coal injection (PCI) system, the injected particles causing a reduction in hot metal temperature, the injection process continuing and maintaining a target cooled hot metal temperature, the target hot metal tapped to provide a cooled hot metal charge in a BOF converter, the cooled hot metal charge decreasing BOF heat time and increasing BOF steel production.

Abstract: The present invention is directed to an iron powder commodity and to a process for producing such iron powder commodity comprising dehydrating and de-oiling hot strip mill (HSM) sludge within an inert gas atmosphere contained in a reaction chamber; venting and processing reaction chamber off-gas into a hydrocarbon product; discharging from the reaction chamber a dry de-oiled iron powder commodity that contains nanoparticle and ultrafine particle iron-bearing solids, and beneficiating the discharged iron powder commodity into particles of similar properties.

Abstract: The present invention is directed to a process for treating an oily mixture consisting of hydrocarbons, solid particles, and water. The steps of the process include placing the oily mixture into a reactor chamber, purging the reactor chamber with an inert gas, and creating a steam bath within the inert gas filled reactor chamber, the steam surge freeing hydrocarbon matter from the solid particles. The process further includes elevating reactor chamber temperature to a boiling point temperature corresponding to the hydrocarbons in the oily mixture, the elevated temperature vaporizing the hydrocarbons are vaporized within inert atmosphere. The reaction chamber is vented and the off-gas is processed into a hydrocarbon product while the de-oiled solid particles are discharged from the reaction chamber as a raw material or for disposal.

Abstract: The present invention is directed to a process for treating an oily mixture consisting of hydrocarbons, solid particles, and water. The steps of the process include placing the oily mixture into a reactor chamber, purging the reactor chamber with an inert gas, and creating a steam bath within the inert gas filled reactor chamber, the steam surge freeing hydrocarbon matter from the solid particles. The process further includes elevating reactor chamber temperature to a boiling point temperature corresponding to the hydrocarbons in the oily mixture, the elevated temperature vaporizing the hydrocarbons are vaporized within inert atmosphere. The reaction chamber is vented and the off-gas is processed into a hydrocarbon product while the de-oiled solid particles are discharged from the reaction chamber as a raw material or for disposal.

Abstract: The present invention provides an improved distributor including a conduit having an inlet end to receive incoming slurry and an outlet end to feed slurry onto a treatment apparatus such as a filter. A plurality of spaced apart diverter rows are arranged within the conduit between the inlet and outlet ends including a first diverter row comprising one adjustable diverter that is selectively adjustable to divide incoming slurry into either two slurry streams or into three slurry streams. A last diverter row is provided adjacent the outlet end, and the last row includes a plurality of spaced apart non-adjustable diverters make a last division of the slurry before it is discharged onto the filter.

Abstract: The present invention provides an improved distributor including a conduit having an inlet end to receive incoming slurry and an outlet end to feed slurry onto a treatment apparatus such as a filter. A plurality of spaced apart diverter rows are arranged within the conduit between the inlet and outlet ends including a first diverter row comprising one adjustable diverter that is selectively adjustable to divide incoming slurry into either two slurry streams or into three slurry streams. A last diverter row is provided adjacent the outlet end, and the last row includes a plurality of spaced apart non-adjustable diverters make a last division of the slurry before it is discharged onto the filter.

Abstract: A slag conditioner for extending the life of a BOF vessel lining utilizing recycled blast furnace filter cake dewatered by contact with a hot slag; its process of production, and method of use.

Abstract: A slag conditioner for extending the life of a BOF vessel lining utilizing recycled blast furnace filter cake dewatered by contact with a hot slag; its process of production, and method of use.

Abstract: A roadway base comprises oily sludge, steelmaking slag fines, and an additive selected from the group consisting of cement, fly ash, asphaltic emulsion, and mixtures thereof

Abstract: Specific recycle materials are blended with hot slag and wet sludge to make a recyclable steelmaking revert. The specific recycle materials are kish, lime, glass, ferro-manganese and the like. The specific materials are blended with the slag and sludge individually or in any desirable combination to form a steelmaking revert. After the recycle materials are blended with the slag and sludge, the recycle blend slag/sludge mixture is allowed to rest to bring the moisture content to less than 10% by weight. The steelmaking revert and process for making the same reduce the need for steelmaking raw materials by employing recycle materials from land fills. Thus, the cost of steel production is reduced.

Abstract: A method is provided for improving the efficiency of a basic oxygen furnace operation and/or regulating its rate of molten iron consumption to accommodate interruptions in downstream production. The method comprises the steps of combining a wet scrubber sludge with hot slag to provide a slag/sludge mixture, commencing a steelmaking operation of the basic oxygen furnace (BOF), and introducing the slag/sludge mixture into the BOF during the steelmaking operation so that the BOF produces a desired quantity and quality of steel in a manner that is more efficient than without the slag/sludge mixture. Also provided is a system for improving the efficiency of a BOF operation. The system comprises a mixer and an introduction mechanism. The mixer is connected to a source of wet scrubber sludge and a source of hot slag. The mixer is adapted to combine the wet scrubber sludge with the hot slag to provide a slag/sludge mixture.

Abstract: The invention is directed to a process for agglomerating high-carbon dust, such as kish. The process comprises the steps of providing a supply of the high-carbon dust, applying a suifactant and water to the high-carbon dust, and applying a bonding agent to the high-carbon dust so that the high-carbon dust becomes agglomerated. The process provides a product having favorable characteristics. A substantially non-dusting high-carbon composition, for example, can be provided. The high-carbon composition comprises high-carbon dust, a surfactant, and a bonding agent in an amount by weight between about {fraction (1/20,000)} and about {fraction (1/200)} of the weight of the high-carbon dust. The high-carbon dust, surfactant, and bonding agent are agglomerated to form a clay-like material. A kish agglomerating system also is provided. The system comprises a kish storage container, a mixing tank, and a transport mechanism.

Abstract: The invention is directed to a process for dehydrating and recycling back into a BOF converter wet BOF scrubber sludge to produce a steelmaking revert having an improved flow rate when handled in a recycle stream. Wet sludge is combined with hot BOF slag to provide a slag/sludge mixture. The wet sludge causes the mixture to have a moisture content greater than 10% water by weight, and the hot slag, having a temperature below the molten liquid state, vaporizes the water in the mixture and reduces the moisture content to about 4% water by weight or less. The dehydrated mixture has improved flow rate properties when it is recycled as a steelmaking revert.

Abstract: The invention is directed to a process for dehydrating and recycling back into a BOF converter wet BOF scrubber sludge to produce a steelmaking revert having an improved flow rate when handled in a recycle stream. Wet sludge is combined with hot BOF slag to provide a slag/sludge mixture. The wet sludge causes the mixture to have a moisture content greater than 10% water by weight, and the hot slag, having a temperature below the molten liquid state, vaporizes the water in the mixture and reduces the moisture content to about 4% water by weight or less. The dehydrated mixture has improved flow rate properties when it is recycled as a steelmaking revert.

Abstract: A method is provided for improving the filtration rate of nonhazardous wastewater streams generated at a steel plant. The solids are concentrated in the wastewater stream. No more than about 5% by weight of lime is added to the concentrated wastewater stream which is then dewatered. A friable filter cake is produced by allowing the solids to harden. The lime addition results in a significant increase in the rate at which the stream may be filtered.

Abstract: The invention is directed to a process for dehydrating wet BOF scrubber sludge to produce a steelmaking revert having an improved flow rate when handled in a recycle stream. Wet sludge is combined with hot BOF slag to provide a slag/sludge mixture. The wet sludge causes the mixture to have a moisture content greater than 10% water by weight, and the hot slag, having a temperature below the molten liquid state, vaporizes the water in the mixture and reduces the moisture content to about 4% water by weight or less. The dehydrated mixture has improved flow rate properties when it is recycled as a steelmaking revert.

Abstract: Methods for processing wood chips for digestion utilize a chip destructuring apparatus. The method includes an initial disc screen for removing the gross overthick and oversized chips which are discarded or are processed through a rechipper. After the initial disc screen, the entire stream of chips is processed to eliminate tramp metal. The entire chip stream is screened to remove fines. The stream of chips is fed to the chip destructuring apparatus from a surge bin with a star feeder. The star feeder is a metering device and is operated by a controller which monitors the level of chips in the surge bin. The controller uses the star feeder to feed a steady supply of chips to the chip destructuring apparatus which allows the destructuring apparatus to be configured for a maximum feed rate.

Abstract: A system and process for treating dust and sludge from iron and steel making operations and includes separating iron and carbon from zinc and lead. Separation is performed in a series of hydrocyclones associated in a series-parallel fashion, The iron and carbon is recycled within the iron making operation without detriment to furnace liners, Lime and flocculent are added to the lead and zinc to create a stable material suitable for landfill disposal, Sludges are consumed by injection onto a sinter strand.

Abstract: A low-permeability barrier for waste disposal sites such as landfills and waste lagoons, and a method for constructing the same, includes a waste material. The waste material is stabilized to decrease the permeability characteristics of the waste material and may be further processed to improve the structural characteristics of the waste material and to prevent leaching of any leachable components. A method is provided for applying the waste material to the waste disposal site as a liner, interim cover, and/or final cover.