Abstract: A disposal method for waste fabric containing polyester and nylon includes: step (a): providing a waste fabric containing polyester and nylon; step (b): performing a first-stage treatment including acid treatment on the material to obtain a first liquid material and a first solid material; step (c): performing a second-stage treatment on the first liquid material to obtain a second liquid material and a second solid material; step (d): performing a third-stage treatment including acid treatment on the first solid material to obtain a third liquid material and a third solid material; step (e): performing a fourth-stage treatment on the third liquid material to obtain a fourth liquid material and a fourth solid material, wherein the acid concentration of the second liquid material is lower than the acid concentration of the first liquid material, and the acid concentration of the fourth liquid material is lower than the acid concentration of the third liquid material.

Abstract: A tungsten hexafluoride manufacturing method of the present invention includes a reaction step of reacting tungsten with a gas of a fluorine element-containing compound so as to obtain a mixture that contains tungsten hexafluoride and hydrogen fluoride-containing impurities, and a discharge step of performing distillation of the mixture while performing a discharge operation at least two or more times during the distillation so as to obtain tungsten hexafluoride, the discharge operation being an operation in which a storage operation and a purge operation are alternately performed.

Abstract: A method for granulating a slurry in a fluidized bed granulator having a main longitudinal direction from a seed end where granulation is initiated, to a product discharge end where granules are discharged from the fluidized bed granulator, including at least one fluidized bed compartment, an injection section and a granulation section, separated by a bottom plate including one or more injection nozzles, wherein a feed slurry is provided to the injection section, wherein a first fraction of the feed slurry provided to the injection section is injected into the granulation section through the one or more injection nozzles and a second fraction of the feed slurry, being the remainder of the feed slurry, is passed through the injection section without being injected into the granulation section. A fluidized bed granulator for the granulation of slurries for fertilizer products such as UAS according to the method of the invention.

Abstract: Radioactive nuclides (radionuclides) are separate from an aqueous radioactive liquid by feeding the liquid into a chamber between a porous anode and a porous cathode of a shock electrodialysis device. Meanwhile, an anolyte is fed through the porous anode, and a catholyte is fed through the porous cathode. A voltage is applied to the porous anode and to the porous cathode to create a voltage differential across the chamber. The liquid is passed through the chamber, and cations are selectively driven from the liquid into the cathode by the voltage differential. The voltage differential creates a desalination shock that produces an ion-enriched zone on one side of the desalination shock and a deionized zone on an opposite side. A brine including the radioactive cations is extracted from the ion-enriched zone through a brine outlet, and fresh water is extracted from the deionized zone through a fresh-water outlet.

Abstract: The invention provides a system for pyrolysing organic waste. The system comprises a conical housing (4) configured to temporarily, substantially hermetically, enclose the waste and a mixing device provided with a drive shaft rotatably mounted relative to the housing and a conical mixing body (25) configured inside the housing to fluidise the waste, which mixing body fixedly attached substantially does not touch the housing. The system further comprises heating means (24) for heating the side wall of the housing. This system makes it possible to carry out the processing of organic waste in a batch process. The mixing body prevents a portion of the waste from sticking together by fluidising the waste and keeping it fluidised, whereby the heat generated by the heating means can gradually spread through the waste inside the housing.

Abstract: A solution comprising at least one protic solvent, at least one monomer comprising an (alkyl)acrylic, (alkyl)acrylate or (alkyl)acrylamide group, at least one crosslinking agent comprising at least two groups chosen from (alkyl)acrylic, (alkyl)acrylate or (alkyl)acrylamide groups, at least one photopolymerization initiator and at least one agent chosen from alkali metal halides, alkali metal phosphates, alkali metal sulfates and mixtures thereof; or—of a polymer material capable of being obtained by polymerization of the solution defined above comprising a polymer resulting from the polymerization of the monomer(s) and of the crosslinking agent(s) as defined above and trapping, at the center thereof, a liquid phase comprising at least one agent as defined above; for the trapping of at least one toxic chemical agent.

Abstract: Systems and methods for reducing the volume of construction and demolition (C&D) debris waste are described. The systems include a torrefaction unit that reduces the hardness of the waste while degrading it into volatiles and particles having a range of sizes. The variation in particle size allows for a more efficient compaction due to minimal void space and the imparted softness allows for increased compressibility. This results in the processed debris having a much smaller volume than had it not undergone the presently described methods, which reduces landfill tipping fees and extends the life of the landfill.

Abstract: A method for treating waste printed circuit board includes carbonizing waste printed circuit board together with a calcium compound at 400° C. to 600° C. in a non-oxidizing atmosphere to fix a halogen contained in the board as calcium halide and to melt a solder of the board to allow mounted parts to be easily separated from the board, performing crushing after the carbonizing, and sieving crushed materials into fine particles of less than 0.5 mm containing the calcium compounds, medium particles containing the mounted parts, and coarse particles containing board pieces such that the crushed materials are sorted into the calcium compounds, the mounted parts, and the board pieces.

Abstract: A method of extracting purified lithium sulfate brine from sedimentary rock is disclosed. The method includes the steps of sizing sedimentary rock ore, suspending the sized ore in an aqueous solution, and separating the aqueous solution into lithium bearing slurry and low lithium gangue. The lithium bearing slurry is then treated with an acid, dissolving lithium from the sedimentary rock and forming precipitates which are subsequently removed the slurry, forming an acidic lithium sulfate filtrate solution. The pH of the acidic lithium sulfate filtrate solution is then modified to form further precipitates which are then separated. The neutralized lithium sulfate solution is then crystallized to remove magnesium and potassium, and treated with quicklime, soda ash solution, and/or oxalic acid to form additional precipitates. Finally the additional precipitates are separated from the solution, and the solution is passed through an ion exchange apparatus, forming a purified lithium sulfate brine.

Abstract: A family of crystalline aluminosilicate zeolites has been synthesized that is a layered pentasil zeolite. These zeolites are represented by the empirical formula: Mmn+Rrp+Al1-xExSiyOz where M is an alkali, alkaline earth, or rare earth metal such as sodium or strontium, R can be a mixture of organoammonium cations and E is a framework element such as gallium, iron, boron, or indium. These zeolites are characterized by unique x-ray diffraction patterns and compositions and have catalytic properties for carrying out various hydrocarbon conversion processes.

Abstract: A system and method for creating and collecting magnetic microplastics effectively combines magnetic material with plastics during their manufacture, thereby producing microplastics that can be easily collected via removal devices equipped with magnetic components. Magnetic particles are mixed with plastic/rubber resins during manufacturing of tires, roofing materials, and other plastic items. The magnetic particles can be made from natural or artificial magnets. After mixing, the partially-magnetic rubber/plastic result can be applied to areas of the manufactured plastic item that have the highest propensity to degrade into microplastic pollutants. For example, the thread of a tire, where friction with the road causes most of the wear, is an optimal location for integration of magnetic particles. When the plastics break down into microplastics, the microplastics can then be collected with magnets.

Abstract: Systems, methods, processes, and/or steps for the long-term disposal of high-level nuclear and radioactive waste, along with other radioactive waste forms, is done within deep salt formation(s) of predetermined characteristics. Waste may be emplaced within a given deep salt formation and after emplacement, creep of that deep salt formation around the deposited waste may entirely entomb that emplaced waste safely for geologic time periods. To emplace the waste, wellbore(s) may be drilled from the Earth's terrestrial surface into the given deep salt formation and then either a mostly horizontal wellbore may be formed within the given deep salt formation and/or a human-made cavern may be formed down and within the given deep salt formation. After emplacement, creep of the deep salt formation will destroy the initial boundaries of the horizontal wellbore and/or of the human-made cavern. This creep sealing process may occur over relatively short time periods.

Abstract: In a method for extracting boric acid from boron solution, the boron solution is processed at a nanofiltration system, wherein the nanofiltration system generates a first permeate and a first concentrate. The first permeate is stored in a first storage tank. The first permeate is polished to generate a second permeate and a second concentrate. The second concentrate is stored in a second storage tank. The second concentrate is processed at a seawater processing system to generate a third concentrate and a third permeate, wherein the third concentrate comprises boric acid. The third concentrate is stored in a third storage tank.

Abstract: Described herein is a method of adding one or more boronic acid functional compounds to a mineral ore to result in a treated mineral ore. Where the mineral ore is a bauxite ore, and the ore is subsequently processed according to the Bayer process to obtain alumina, adding a boronic acid functional compound to the bauxite ore or a Bayer product followed by processing the treated bauxite ore or treated Bayer product using one or more processes associated with the Bayer process results in an increased yield of alumina product, increased alumina content (purity) in the alumina product obtained, or both when compared to the same bauxite ore or Bayer product subjected to the same process(es) but in the absence of a boronic acid functional compound.

Abstract: The present invention relates to a steam reforming catalyst for hydrogen production. More specifically, the present invention provides a novel catalysts support for sustainable hydrogen production by steam reforming process using bio-based materials feedstock such as ethanol, glycerol, n-butanol and ethylene glycol. The said improved support catalyst and metal doped catalysts therefrom, are comprising of combination of crystalline Mesoporous cellular foam (MCF) silica and basic site assistant for enhancing catalytic activity of doped active metals thereon and lower coke formation. The benefits of present invention is in the cost efficient steam reforming process for hydrogen production, wherein the said catalysts are efficiently providing a high reactant conversion at lower temperature, no coke formation, high thermal stability for longer time and effective catalytic performance for multiple cycles.

Abstract: A method of extracting purified lithium sulfate brine from sedimentary rock is disclosed. The method includes the steps of sizing sedimentary rock ore, suspending the sized ore in an aqueous solution, and separating the aqueous solution into lithium bearing slurry and low lithium gangue. The lithium bearing slurry is then treated with an acid, dissolving lithium from the sedimentary rock and forming precipitates which are subsequently removed the slurry, forming an acidic lithium sulfate filtrate solution. The pH of the acidic lithium sulfate filtrate solution is then modified to form further precipitates which are then separated. The neutralized lithium sulfate solution is then crystallized to remove magnesium and potassium, and treated with quicklime, soda ash solution, and/or oxalic acid to form additional precipitates. Finally the additional precipitates are separated from the solution, and the solution is passed through an ion exchange apparatus, forming a purified lithium sulfate brine.

Abstract: The inventive concept discloses a method for preparing a cathode active material containing a lithium manganese oxide exhibiting a reversible phase transition, and exhibiting electrochemical characteristics of the lithium manganese oxide through the reversible phase transition including (A) synthesizing a sodium manganese oxide using a manganese precursor, and (B) reacting the sodium manganese oxide with a lithium precursor to synthesize the lithium manganese oxide, or including (C) directly synthesizing the lithium manganese oxide.

Abstract: The present application provides a method of preparing sulfuryl fluoride, including the following steps of: S1) reacting sulfur trioxide steam with barium fluoride to acquire a mixed gas of barium sulphate and sulfuryl fluoride; S2) pickling the mixed gas acquired in step S1 with a concentrated sulfuric acid solution with a concentration of 70-98.3 wt. % to acquire a primary purified sulfuryl fluoride gas; S3) passing the primary purified sulfuryl fluoride gas acquired in step S2 through an aqueous solution with a concentration of 2-10 wt. % selected from at least one of the following: sodium sulfite, sodium bisulfite, sodium pyrosulfite, and sodium thiosulfate, to acquire a sulfuryl fluoride gas.

Abstract: Disclosed is a method for preparing a reduced graphene oxide-magnesium nanocrystal composite. The method includes contacting graphene oxide with a first reducing agent to prepare a reduced graphene oxide, and co-reducing the reduced graphene oxide and a precursor of magnesium in the presence of a second reducing agent to prepare a reduced graphene oxide-magnesium nanocrystal composite, wherein by adjusting the amount of the first reducing agent in contact with the graphene oxide, the size of the magnesium nanocrystals in the composite may be controlled.

Abstract: A method of recovering fly ash, including a firing step in which raw fly ash powder containing unburned carbon is fired to remove the unburned carbon by burning; measuring the content of unburned carbon in the raw fly ash powder; and obtaining a fine fly ash powder which is a component under a sieve and has a decreased content of unburned carbon as a result of sieve-classifying the raw fly ash powder. The perforation size of the sieve used in the sieve-classifying step is set depending upon the content of unburned carbon in the raw fly ash powder. The sieve has a small perforation size when the content of unburned carbon is large, and the sieve has a large perforation size when the content of unburned carbon is small. The fine fly ash powder, which is the component under the sieve, is recovered through the firing step.