This filtration device 10 has a can body 20 having a reservoir 3 that connects to an opening 9 at the top, and a filtration unit 40 which is detachably installed in the reservoir. The filtration unit has a support plate 42, and filtration tubes 41 of bottomed cylindrical shape fastened to the support plate. The side wall 22 of the can body 20 has a protruding locking part 30 for installation of the filtration unit so that the filtration tubes are suspended from the support plate 42, with the openings 43 thereof facing upward. With the support plate 42 locked into the locking part 30, pressing members 70 for pressing the support plate 42 downward from the upper surface side in sections thereof lying towards the peripheral edge S in relation to the fastening locations of the filtration tubes 41 are deployed, making it possible for the support plate 42 to be fastened in clamped fashion by the locking part 30 and the pressing members 70.

Methods of recovering precious metals from unconventional feed water sources. In approaches, the methods use a combination of one or more of ultrafiltration, nanofiltration, and/or reverse osmosis membranes. The unconventional feed water source may be salt lake brines, coal-fired plant flue-gas scrubber blowdown water, high salinity brines, concentrated brine from desalination of seawater and the like sources. The recovered precious metals may include gold tetrachloride, gold sulfate, silver tetrachloride, silver sulfate, rare earth elements, or mixtures thereof.

Methods and systems for the production and delivery of lithium metal of high purity are provided. More particularly, methods and systems for lithium metal purification, delivery and deposition are provided. In at least one aspect, a liquid lithium delivery system is provided. The liquid lithium delivery system comprises a liquid lithium delivery module. The liquid lithium delivery system comprises a lithium storage region operable to store the liquid lithium, a pumping region operable to move liquid lithium through the lithium delivery, and a flow control region. The pumping region comprises an electromagnetic pump operable to move the liquid lithium using electromagnetism. The flow control region operable to control the flow of liquid lithium, comprising one or more valves operable to control the flow of the liquid lithium, wherein the pumping region is positioned downstream from the lithium storage region and upstream from the flow control region.

A spinel-reinforced magnesium oxide-based foam ceramic filter that is obtained by coating onto a polyurethane foam carrier a slurry of light calcined magnesium oxide-based ceramic comprising a nanometer lanthanum oxide sintering aid, and then drying and sintering. A method for preparing the foam ceramic filter comprising: 1) preparing a ceramic slurry having a solid content of 60%-70% by dosing 15%-25% by mass of a nanometer alumina sol, 0.8%-1.5% by mass of a rheological agent, and the balance magnesium oxide ceramic powder comprising a nanometer lanthanum oxide sintering aid, and then adding absolute ethanol and ball milling to mix until uniform; 2) soaking a polyurethane foam template into the ceramic slurry, squeezing by a roller press the polyurethane foam template to remove redundant slurry therein to make a biscuit, and then removing the ethanol solvent in a ventilation chamber at a temperature of 40° C.-50° C. to dry the biscuit; 3) putting the dried biscuit into a sintering furnace, elevating the temperature to 1350° C.-1550° C. and performing a high temperature sintering, cooling to the room temperature with the furnace to obtain the magnesium oxide-based ceramic foam filter.

The present disclosure provides a purification material for a rare earth metal or rare earth alloy and a preparation method thereof and a purification method for a rare earth metal or rare earth alloy. The purification material includes the following raw materials in mass percentage: 30% to 45% of a tungsten powder, 30% to 50% of a rare earth oxide, 5% to 10% of zirconia, 10% to 15% of a binder, and 1% to 5% of a rare earth hydride.

Certain examples of the present disclosure relate to a method for manufacturing a ceramic object, the method comprising: forming a ceramic structure by 3D printing the ceramic structure with a binder jetting 3D ceramic printer using a ceramic powder and an inorganic binder, wherein the ceramic powder comprises sintered ceramic material; and firing the ceramic structure to form the ceramic object.

A molten metal filter box. The filter box includes a filter housing provided in a flow path for molten metal. A horizontal partition is disposed within the filter housing and has at least one filter receiving passage. A filter medium in the shape of a substantially flat plate is positioned within the filter receiving passage and below an inflow path of the molten metal. The filter medium includes a hole. A filter handling tool is disposed within the hole. The filter handling tool can optionally include a handle secured to the molten metal filter box to suspend the filter medium. Advantageously, the filter medium can be removed by grasping the filter handling tool and removing the filter medium.

A solder product 20 includes: a lead-free solder part 21 containing tin as a main component and a metal element other than lead as a secondary component; and a carboxylic acid having 10 to 20 carbons, the carboxylic acid being mainly distributed over the surface of the solder product 20 to form a surface layer 22. The carboxylic acid is preferably a fatty acid having 12 to 16 carbons, and more preferably a palmitic acid.

Additively manufactured ceramic filters are disclosed. A plurality of pores, each having a uniform geometry, are arranged between an inlet surface and an outlet surface of a single unit of ceramic such that the plurality of pores change in size uniformly from the inlet surface to the outlet surface. The pores are respectively interconnected, and the size, shape, orientation, and/or interconnection of the pores are chosen to provide hydrodynamic features that provide effective filtration for a given liquid and contamination. The pores are additively manufactured with optimized precision.

Methods of recovering precious metals from unconventional feed water sources. In approaches, the methods use a combination of one or more of ultrafiltration, nanofiltration, and/or reverse osmosis membranes. The unconventional feed water source may be salt lake brines, coal-fired plant flue-gas scrubber blowdown water, high salinity brines, concentrated brine from desalination of seawater and the like sources. The recovered precious metals may include gold tetrachloride, gold sulfate, silver tetrachloride, silver sulfate, rare earth elements, or mixtures thereof.