A material for porous metal body having a coil shape of a wire material wound in a helical shape, made of metal which having good thermal conductivity and can join by sintering; an average wire diameter Dw of the wire material is 0.05 mm to 2.00 mm inclusive, an average coil outer diameter Dc is 0.5 mm to 10.0 mm inclusive, a coil length L of 1 mm to 20 mm inclusive, and a winding number N is 1 to 10; and the plurality of materials for porous metal body are combined and sintered to form a metal porous body having a plurality of pores so that a pore ratio of the metal porous body is facilitated to be controlled.

A method for manufacturing metal components includes the steps of providing a waste feedstock having a selected chemical composition; producing an additive manufacturing (AM) grade alloy powder from the waste feedstock using a cold hearth mixing process; providing an additive manufacturing system; controlling the producing of the alloy powder such that the properties of the alloy powder optimize building of the components using the additive manufacturing system; and building the components using the alloy powder and the additive manufacturing system.

A process for the granulation of slag deriving from iron and steel production, in particular a process for the granulation of slag in air, and an apparatus configured to perform this process, provide for the production of granulates with different characteristics depending on the intended use, thus making this process and apparatus particularly versatile. More specifically, a process according to the present invention includes a step of controlling and modifying the time and/or the cooling rate of the slag granules so as to obtain slag granules having desired morphological features.

Disclosed are an apparatus and a method for granulation of a blast furnace slag and recycling of waste heat. The apparatus comprises an aerosol granulation nozzle module, a flow guide, a cyclone separator and a waste heat recovery device; wherein the aerosol granulation nozzle module comprises a slag flow controller, a compressed air flow control valve, a water volume control valve and an aerosol spray gun; the flow guide is configured to fully mix the medium temperature gas and the high-temperature granular slag having a primarily solidified surface in the flow guide; and the cyclone separator is configured to separate the high-temperature granular slag and the medium-to-high-temperature gas. The present invention completes the granulation of blast furnace slag, and organically couples slag sensible heat recovery with sludge drying, thereby recovering the waste heat in the process of slag granulation and improving the efficiency of waste heat recovery and utilization.

The use of carbamides as extractants for fully or partially separating uranium(VI) from plutonium(IV) in an aqueous solution obtained by dissolving a spent nuclear fuel in nitric acid, by method of liquid-liquid extraction, without carrying out any reduction of the plutonium(IV) to plutonium(III). The invention also relates to new carbamides. Uses are the processing of spent nuclear fuels based on uranium (especially uranium oxides—UOX) or uranium and plutonium (especially mixed uranium and plutonium oxides—MOX).

Reaction chamber and methods of extraction of metal compounds, specifically tools for uranium hexafluoride (UF.sub.6) conversion into uranium dioxide (UO.sub.2) ceramic powder (up to 5% enrichment of U.sup.235) by applying a method of reductive pyrohydrolysis. In one aspect, the reaction chamber is a shell with upper and lower heads, comprising upper filtration area, equipped with metalceramic filters, regenerating nitrogen, the first reaction zone for conversion of uranium hexafluoride into uranyl fluoride, the second reaction zone with gas-distribution grid for building up fluidization layer for reduction of uranyl fluoride to uranium dioxide with a nozzle of steam, and hydrogen and nitrogen supply. On the side walls of the first reaction zone of the reaction chamber shell there are two nozzles located symmetrically for uranium hexafluoride, hydrogen and water steam supply. The chamber is equipped with a device for discharge of powder.

Aspects of the disclosure relate to apparatus and methods for producing a downhole electrical component, having steps of providing a non-conductive polymer substrate, establishing an active area on the non-conductive polymer substrate, patterning the active area on the non-conductive polymer substrate with a conductive material through an additive manufacturing process and incorporating the patterned non-conductive polymer substrate into a final arrangement.

Methods of recovering coal combustion products (CCPs) and/or dry bottom furnace slag (DBFS) from coal combustion byproducts are disclosed. The methods include compiling coal combustion byproducts (e.g., from combustion of lignite coal and/or bituminous coal), grinding the coal combustion byproducts to form ground coal combustion byproducts with a maximum particle size of 40 microns, and separating CCPs from the ground coal combustion byproducts using an electrostatic precipitator. The following CCPs can be separated from the coal combustion byproducts using the presently disclosed methods: fly ash, bottom ash (e.g., containing pyrites), scrubber materials (e.g., calcium sulfate and calcium sulfite), and raw coal.

An expeditionary additive manufacturing (ExAM) system for manufacturing metal parts includes a mobile foundry system configured to produce an alloy powder from a feedstock, and an additive manufacturing system configured to fabricate a part using the alloy powder. The additive manufacturing system includes a computer system having parts data and machine learning programs in signal communication with a cloud service. The parts data can include material specifications, drawings, process specifications, assembly instructions, and product verification requirements for the part. An expeditionary additive manufacturing (ExAM) method for making metal parts includes the steps of transporting the mobile foundry system and the additive manufacturing system to a desired location; making the alloy powder at the location using the mobile foundry system; and building a part at the location using the additive manufacturing system.

Described herein are methods for recovering uranium tetrafluoride (UF.sub.4) from uranium hexafluoride (UF.sub.6) by directly dissolving UF.sub.6 in ionic liquids and recovering UF.sub.4, which can be processed to obtain UO.sub.2 (s) or uranium metal.