Abstract: Described herein is a hydroformylation catalyst system and method useful for producing aldehydes from olefin substrates, without using carbon monoxide gas. The hydroformylation catalyst system includes a hydroformylation catalyst complex including a Group 9 metal complexed with a phosphine-based ligand; a syngas surrogate including formic acid and an anhydride compound, which forms carbon monoxide in situ; and hydrogen, which may derive from the syngas surrogate or not derived from the syngas surrogate. The method involves reacting the olefin substrate with a syngas surrogate in the presence of a hydroformylation catalyst complex, wherein the syngas surrogate forms carbon monoxide, and optionally hydrogen, in situ, and then isolating the aldehyde compound from a reaction mixture.

Abstract: A dental impression material for use in a combination impression method includes a base material paste containing an alginate and water, a gelling agent, and a curing material paste containing a water-insoluble liquid compound, wherein a consistency of a kneaded material formed of the base material paste and the curing material paste is 36 mm or more, and a compressive strength of a cured body is 0.35 MPa or more.

Abstract: The present disclosure belongs to the technical field of lithium battery recycling, and discloses a method for separating and recovering valuable metals from waste ternary lithium batteries. The method includes the following steps: adding a persulfate to a waste ternary lithium battery powder, and conducting oxidative acid leaching to obtain a leaching liquor and a leaching residue; adding an alkali to the leaching liquor to allow a precipitation reaction; adding a sulfide salt to allow a reaction; adjusting a pH to allow a precipitation reaction to obtain a nickel hydroxide precipitate and a liquid phase A; adding a carbonate to the liquid phase A to allow a reaction, and conducting solid-liquid separation (SLS) to obtain lithium carbonate; and subjecting the leaching residue to calcination, adding a chlorate, heating a resulting mixture, and conducting SLS to obtain manganese dioxide.

Abstract: Method and apparatus for converting waste solid sustainable carbon material to chemical products is described herein. The methods add hydrocarbon derived from fossil sources to gas derived from gasifying waste solid sustainable carbon material to enhance hydrogen availability, and in some cases carbon availability, for production of the chemical products. Biomass is used to provide energy to dry waste solid sustainable carbon material to form dry sustainable carbon material to gasify. Carbon dioxide made by the process is at least partially sequestered to yield a chemical manufacturing process with environmental burden substantially less than conventional processes. Use of the hydrocarbon boosts yield of final products.

Abstract: The invention provides hydrophobic silica wet gel, hydrophobic silica aerogel, and methods that can be used to form an enhanced hydrophobic silica aerogel sheet having an advantageous combination of properties. Some embodiments of the invention provide a hydrophobic silica aerogel having advantageous properties, such as desirable performance on visible transmission, haze, or both.

Abstract: Methods and apparatus for Li extraction involve a dry transfer electrolysis process for extracting, enriching, purifying and/or producing an aqueous Li substance as a primary product from a liquid Li input solution that is derived from a Li resource, such as a geothermal or oilfield brine.

Abstract: Provided are a system for preparing isotope-labeled carbon dioxide and a method therefor. The preparation method comprises: vaporizing heavy-oxygen water and mixing the heavy-oxygen water with carbon dioxide, and subjecting the heavy-oxygen water and the carbon dioxide to an oxygen-exchange reaction by catalyzing them with a catalytic material, and performing gas-liquid separation after the reaction to obtain the isotope-labeled carbon dioxide. The system provided by the present application has a simple structure, and by adopting the heavy-oxygen water which has a wide source and low cost as an oxygen isotope source and utilizing the oxygen-exchange reaction, the replacement of oxygen-16 in normal carbon dioxide by oxygen-18 in heavy-oxygen water is achieved to obtain the oxygen-18 labeled carbon dioxide product.

Abstract: A preparation method for iron phosphate powder by microporous filtration and concentration and a preparation device thereof is provided. The preparation method includes: putting raw materials into a reactor to react for nucleation, a mother liquor generated after raw materials reaction entering the filter concentrator, and controlling and starting a stirring shaft for driving an upper stirring blade and a lower stirring blade to rotate for grinding and scaling; when a mother solution level exceeds an upper liquid inlet end of lower microporous filtration tube groups, controlling and starting a filtrate valve of a filtrate tube of the lower microporous filtration tube groups, and when the mother solution level exceeds the upper liquid inlet end of upper microporous filtration tube groups, controlling and starting a filtrate valve of a filtrate tube of the upper microporous filtration tube groups.

Abstract: Nanoparticles including inorganic oxide particles and having good dispersibility, a dispersion of nanoparticles including said nanoparticles, and a production method of said nanoparticles are provided. Surfaces of inorganic oxide particles is functionalized with a functionalizing agent including niobium compound having a specific structure and a silane compound having a specific structure. The inorganic oxide particles are preferably titanium oxide particles or zirconium oxide particles. Average primary particle size of the nanoparticles measured by X-ray diffraction method is preferably 3 nm or more and 20 nm or less.

Abstract: A deployable system and method are provided for recovering gallium oxide from gallium-nitride-bearing electronic waste in a single, continuous, multi-zone rotary-kiln reactor. Shredded E-Waste is introduced through a sealed feed assembly into a refractory-lined kiln having a first zone operating at about 700° C.-900° C. for partial oxidation of organics and a second zone operating at about 1000° C.-1200° C. for oxidation of gallium nitride to gallium oxide. Controlled oxidant injection and kiln rotation of 0.25-3 rpm maintains residence times of 0.5-2 hours for complete conversion. An expanded velocity-reduction chamber separates oxidized solids from gases, while a downstream heat-recovery and dry-neutralization system removes acid gases and volatile metals without producing liquid effluent. The resulting porous gallium oxide is directly leachable to yield high-purity gallium.

Abstract: Providing a surface molecularly imprinted magnetic nanomaterial of salvianolic acid A, a preparation method therefor and use thereof. The nanomaterial is obtained by using ferroferric oxide nanoparticles as a core, salvianolic acid A as a template molecule, 4-acryloyloxy phenylboronic acid, vinyl imidazole and methacryloylpropyl trimethyl ammonium chloride as copolymerization functional monomers, bismethylene acrylamide as a cross-linking agent, and azoamidine initiator V50 as an initiator, synthesizing surface imprinted magnetic material containing template molecules by surface polymerization, and finally eluting the template molecule with 0.1 M HCl. It is a spherical particle with a core-shell structure of about 250 nm, with positive charge on the surface and strong hydrophilicity, which can be recycled. Moreover, this magnetic material is easy to be separated by a magnet.

Abstract: A composite comprising a compound formed using a multistage magnesiothermic reduction reaction, wherein the compound comprises particles comprising silicon and oxygen. Applications of the composite in electrochemical cells are further described.

Abstract: A method of forming a medium for gas adsorption includes providing a medium substrate with a de-functionalized hygroscopic layer, covering at least a portion of the medium substrate with a solution of an amine and a solvent, and removing excess solution from the medium substrate by evaporation to leave a coating of the amine on the substrate.

Abstract: A method of the producing nanocrystalline silicon particulate from a silicate source includes removing contaminants, such as organics and heavy metals, and alumina from the silicate source by treating the silicate source with first and second acidic leaching solutions to form a first intermediate product. The first intermediate product is then reduced by reacting with a magnesium vapor to provide porous magnesiated silicon particulates as a second intermediate product. The second intermediate product is treated with a third leaching solution to remove magnesium and magnesium containing compounds form the second intermediate to thereby provide a third intermediate. The third intermediate is treated with a fourth leaching solution for removing remnant silica to thereby provide nanocrystalline porous silicon particles.

Abstract: The present disclosure generally relates to a microporous aerogel, processes for preparing a microporous aerogel, and applications for the microporous aerogel. The present disclosure also generally relates to an apparatus for capturing carbon dioxide from a gaseous stream or from the atmosphere, the apparatus comprising a microporous aerogel for selectively adsorbing and desorbing the carbon dioxide.

Abstract: Provided are a method for producing boehmite nanoparticles and an apparatus for producing the same, and more particularly, a method for producing boehmite nanoparticles and an apparatus for producing the same, which allow continuous production of nano-sized boehmite nanoparticles in a uniform size. The method for producing boehmite nanoparticles includes (S1) supplying a mixture including an aluminum hydroxide and an organic acid to a reaction unit; and (S2) heating and pressurizing the mixture supplied to the reaction unit simultaneously and sequentially.

Abstract: Systems and methods of sequestering carbon dioxide in concrete are described herein. The methods include combining water and a foaming agent to form a foaming agent mixture, adding a gas comprising carbon dioxide to the foaming agent mixture in a first mixing chamber, mixing the water, the gas comprising carbon dioxide and the foaming agent to form a foam mixture in the first mixing chamber, the foam mixture comprising a plurality of foam bubbles containing the at least a portion of the carbon dioxide, combining the foam mixture with concrete materials in a second mixing chamber so that the foam mixture contacts the concrete materials, the concrete materials comprising cement, and mixing the foam mixture and the concrete materials in the second mixing chamber to form the concrete having the carbon dioxide sequestered therein.

Abstract: Provided herein are methods for producing crystalline tungsten bronze oxide particles. The method may include atomizing a liquid solution comprising an alkali metal precursor and a tungsten precursor to produce droplets; mixing the droplets with one or more gaseous flows to produce a combined flow; flowing the combined flow through a heated reactor to provide crystalline tungsten bronze oxide particles having the formula MxWO3, wherein M is the alkali metal; and collecting the particles.

Abstract: A dehydrogenation reaction device is disclosed. The device includes a chemical hydride storage unit including a chemical hydride storage tank, a reaction unit including an acid aqueous solution storage tank, and a dehydrogenation reactor for generating hydrogen by reacting a chemical hydride with an acid aqueous solution. The device further includes a hydrogen storage unit including a hydrogen storage tank for storing the hydrogen produced in the dehydrogenation reactor, and a recovery unit for recovering the product produced in the dehydrogenation reactor.

Abstract: A more efficient and lower waste liquid-phase method for recovering lithium carbonate suitable for high-performance lithium applications from recycled lithium-ion battery and other sources of lithium hydroxide including aqueous solutions is described. The method uses carbon dioxide gas to directly form lithium carbonate from a lithium hydroxide including solution, thus eliminating the need for conventional acid pre-treatment and reducing the need for subsequent sodium carbonate addition.