1756 results about "Alkaline earth metal" patented technology

A solid electrolyte includes: LiaAbEc(SO4)dJeXfHh, A is selected from alkaline earth metals and alkali metals other than Li, E is selected from Al, Ga, In, Sc, Y, Ti, Zr, Hf, and lanthanides, J is selected from OH, BO2, BO3, BO4, B3O6, B4O7, CO3, NO3, AlO2, SiO3, SiO4, Si2O7, Si3O9, Si4O11, Si6O18, PO3, PO4, P2O7, P3O10, SO3, SO5, S2O3, S2O4, S2O5, S2O6, S2O7, S2O8, BF4, PF6, BOB, (COO)2, N, AlCl4, CF3SO3, CH3COO, CF3COO, OOC—(CH2)2—COO, OOC—CH2—COO, OOC—CH(OH)—CH(OH)—COO, OOC—CH(OH)—CH2—COO, C6H5SO3, OOC—CH═CH—COO, OOC—CH═CH—COO, C(OH)(CH2COOH)2COO, AsO4, BiO4, CrO4, MnO4, PtF6, PtCl6, PtBr6, PtI6, SbO4, SeO4, TeO4, HCOO, and O, X is selected from F, Cl, Br, and I, 0.5≤a<6, 0≤b<6,0<c<2,0.1<d≤6.0, 0<e≤6.0, 0<f≤6.1, and 0≤h≤0.2, and a peak is observed at a diffraction angle 2θ=22.3°±1.0° in an X-ray diffraction pattern in which Cu-Kα is used as a line source.

To provide a concrete composition with a portion of aggregate thereof replaced with carbonate light aggregate, excellent in fresh characteristics and in post-curing strength and freeze damage resistance.SOLUTION: An aspect of the present invention relates to a concrete composition including (a) cement, (b) coarse aggregate, (c) fine aggregate, (d) granulated carbonate light aggregate of alkali earth metal, (e) and water, where the carbonate light aggregate has a cumulative pore volume of 0.06 mL / g or more, each pore having a pore size of 100 nm or less.SELECTED DRAWING: None

A method including pretreating ground lithium-containing ceramics to form alkali coated ceramics, leaching the alkali coated ceramics to form a leachate comprising a filtrate and a solid residue, preferentially extracting lithium from the filtrate to form a lithium rich solution and a raffinate, precipitating a crude lithium carbonate from the lithium rich solution and purifying the crude lithium carbonate to produce a battery grade lithium carbonate. A method including leaching a slurry comprising lithium-containing ceramics, water, a strong base, and an alkaline earth metal oxide / hydroxide at a pressure ranging from 0 to 1450 psi and at a temperature ranging from 100 to 500°C to form a leached slurry comprising a liquid filtrate and a solid residue, processing the liquid filtrate to recover a lithium-rich organic solution, and processing the lithium-rich organic solution to produce a battery-grade lithium compound and sodium sulfate.

An adsorbent for removing organic sulfide, and a preparation method therefor and a use thereof, relating to the technical field of desulfurization adsorbents. The adsorbent for removing organic sulfide comprises a high-pore-volume core and a coating layer attached to the high-pore-volume core; the high-pore-volume core is obtained by mixing a nonionic surfactant, an alkali metal precursor and / or an alkaline-earth metal precursor, and an aluminum-containing compound and then carrying out forming and drying on same; and the coating layer is formed by an Ag and Ce co-modified high-silicon molecular sieve and a composition Al2(OH)nCl6-n (n=1-5). The adsorbent has the characteristics of high desulfurization efficiency, wide desulfurization range, high desulfurization precision, mild use conditions, long service life and the like, can achieve deep removal of organic sulfur under normal-temperature and normal-pressure conditions, can remove the organic sulfur in raw materials to 10 ppb or below, and is particularly suitable for desulfurization and purification of liquefied petroleum gas or natural gas.

The present invention relates to the technical field of inorganic materials, and particularly to a method for clean smelting of beryllium oxide and beryllium oxide. The smelting method includes using iron powder to remove trivalent iron in the acid leaching solution of beryllium ore; using a non-saponified extraction system without sodium ions and ammonium cations, and the non-saponified extraction system exchanges hydrogen ions with itself when extracting beryllium ions. The present invention solves the problems existing in beryllium smelting preparation in the prior art, such as low beryllium recovery rate, easy interference by associated elements, large pollution, and difficult waste liquid treatment. An alkaline earth metal compound is used as a raffinate impurity removal reagent and a non-saponified extraction system, and the raffinate after impurity removal is recycled for beryllium ore leaching, improving the beryllium recovery rate and reducing the environmental pollution caused by waste liquid discharge.

The instant disclosure generally relates to lubricating compositions having an oil of lubricating viscosity, an ashless phosphorus-containing antiwear agent an alkaline earth metal detergent, an ashless antioxidant, and an ashless dispersant where the lubricating compositions are substantially free of zinc and methods of lubricating an engine with such lubricating compositions. The instant lubricating compositions are useful as alternative lubricating compositions the reduce and / or eliminate zinc to achieve a desired performance goal of the lubricating composition.

Clean version of Abstract A catalyst and anode for hydrogen production by electrolysis as well as a preparation method, activation method and use thereof are provided. The anode for hydrogen production by electrolysis includes a catalyst which is nickel iron barium hydrotalcite with a nano hexagonal sheet structure and a thickness of 100-200 nm. The catalyst can be prepared by a one-step solvothermal reaction method. Alkaline-earth metal ions are evenly doped in the nickel iron barium hydrotalcite and are in atomic level dispersion, so that the anode for hydrogen production by electrolysis based on the catalyst, when being applied to a process for hydrogen production by electrolysis of an aqueous solution containing chlorine ions, not only can maintain good catalytic performance, but also has greatly improved chlorine ion corrosion resistance, leading to significant improvement of working stability and service life.

The invention relates to the technical field of ceramic production, and discloses a high-temperature hard glaze formula for bone china and a bone china production process. 4%-6% of aluminum oxide; 2%-5% of boron oxide; 3%-7% of zinc oxide; 3%-10% of an alkaline earth metal oxide; 7%-13% of alkali metal oxide; 0.5%-2% of zirconium oxide; and 0.5%-1.5% of titanium dioxide. According to the high-temperature hard glaze formula for the bone china and the bone china production process, a proper amount of boric oxide, zinc oxide and lithium oxide are added into the glaze, so that the thermal expansion coefficient of the glaze is effectively reduced, and the thermal stability of the bone china is improved; by adding aluminum oxide, the breaking strength of the bone china can be greatly improved; by adopting a lead-free formula, lead pollution is avoided, and the environment-friendly requirement is met; through the optimized glaze formula and process, the bone china surface has good glossiness and smoothness.

S-Beta-hydroxybutyric acid compositions for oral delivery are effective in rapidly raising blood ketone levels without causing acute acidosis or gastrointestinal (GI) distress when consumed in sufficiently dilute form and / or as a gel or suspension. By limiting added beta-hydroxybutyrate salts containing alkali or alkaline earth metal ions, beta-hydroxybutyric acid solutions, gels, or suspensions can deliver exogenous ketone bodies without significantly altering electrolyte balance. Although aqueous beta-hydroxybutyric acid solutions are moderately acidic with a pH of about 3.5 to 4, when diluted with sufficient water, the water acts as a pseudo buffering agent that offsets otherwise harsh acidic effects when consumed orally. Gels and suspensions can also ameliorate acidic effects by partially encapsulating the beta-hydroxybutyric acid. Beta-hydroxybutyric acid can be pure S-beta-hydroxybutyric acid or a non-racemic mixture enriched with S-beta-hydroxybutyric acid relative to R-beta-hydroxybutyric acid.

The present invention relates to an activator for cementless binders comprising: a silicate of an alkali metal or alkaline earth metal or a hydrate thereof; a carbonate of an alkali metal or alkaline earth metal or a hydrate thereof; and a hydroxide of an alkali metal or alkaline earth metal or a hydrate thereof. The invention also relates to a cementless binder comprising said activator and to a cementless cementitious material comprising said cementless binder. Compared with the traditional ordinary Portland cement, the building material containing the cement-based cementing material has better compressive strength and has the characteristic of environmental protection.

The invention discloses a preparation method of an ion exchange nanofiber membrane with high ion exchange capacity, which comprises the following steps: grinding and sieving a certain amount of strongly acidic cation exchange resin, adding the cation exchange resin into a PVDF (Polyvinylidene Fluoride) solution with DMAc as a solvent, uniformly mixing and stirring, and obtaining a nanoscale out-phase PVDF cation exchange membrane by adopting an electrostatic spinning processing method. A large number of ion exchange resin particles are dispersed in the heterogeneous PVDF cation exchange membrane and on the surface of the heterogeneous PVDF cation exchange membrane, and when the resin particles are in an aqueous solution, sulfonic acid groups (HSO3 < 2->) in the resin can exchange with ions in water, namely, a replacement reaction is carried out, so that metal ions dissolved in the water are removed. The prepared ion exchange membrane can remove alkali metal and alkaline earth metal ions in an aqueous solution, so that the total content of the alkali metal and alkaline earth metal ions in the solution is lower than 300mg / L.

The invention relates to the field of catalytic cracking, in particular to a modified catalytic cracking catalyst and a preparation method and application thereof. The modified catalytic cracking catalyst is of a core-shell structure and comprises an inner core and an outer shell, the inner core contains catalytic cracking catalyst finished product particles and alkaline earth metal elements, and the outer shell contains the alkaline earth metal elements and rare earth metal elements. Compared with other catalysts of the same type, the modified catalytic cracking catalyst has more excellent nickel resistance on the basis of not influencing the catalytic cracking performance, and also has lower dehydrogenation activity.

A light-emitting device includes a light-emitting element, and a light-reflective member that includes an inorganic member and reflects light from the light-emitting element. The inorganic member contains silicon oxide, an alkali metal, and a hydroxide containing an alkaline earth metal.

The invention relates to the technical field of polymer composite materials. The invention provides a high-impact high-modulus PP (polypropylene) composite material for automotive interiors. The high-impact high-modulus PP composite material comprises the following components in parts by weight: 25-40 parts of polypropylene A, 25-40 parts of polypropylene B, 10-18 parts of a toughening agent, 3-5 parts of a compatilizer and 5-10 parts of negative ion functional powder. The invention also provides a preparation method of the high-impact high-modulus PP composite material for the automotive trim. The preparation method comprises the following steps: S1, preparing the negative ion functional powder; s2, uniformly mixing the polypropylene A, the polypropylene B, the flexibilizer, the compatilizer, the talcum powder, the needle-like alkaline earth metal salt, the negative ion functional powder, the antioxidant, the lubricant, the light stabilizer and the color master batch at a high speed, adding the mixture into a double-screw extruder for melting, and then performing extrusion and granulation to obtain the high-impact high-modulus PP composite material for the automotive trim. According to the invention, the impact and modulus of the composite material are improved, and high-concentration sustainable release of negative ions is realized.

The invention provides a composite carrier supported palladium catalyst for preparing succinic anhydride through maleic anhydride hydrogenation and a preparation method and application thereof.The structural general formula of the composite carrier supported palladium catalyst is Pd-A-X-Y / (Z1 + Z2), Z1 in a composite carrier is made of a high-specific-surface-area porous material, Z2 is made of a high-thermal-conductivity compact material, and X is larger than or equal to 1 and smaller than or equal to 2. The active component is composed of metal Pd and transition metal such as Ni or precious metal such as Ru, and the auxiliary agent is composed of oxides of alkali metal, alkaline earth metal or rare earth elements and oxides of high-valence elements such as Mo. The catalyst is prepared by an impregnation method, and the composite carrier supported palladium catalyst has excellent low-temperature activity, tolerance and stability in a reaction for preparing succinic anhydride by maleic anhydride hydrogenation, can bear high maleic anhydride concentration and high liquid hourly space velocity at low temperature, low pressure and low hydrogen-anhydride ratio, and simultaneously obtains high maleic anhydride conversion rate and succinic anhydride selectivity.

The invention belongs to the technical field of catalysts, and particularly relates to a ruthenium-based supported catalyst as well as a preparation method and application thereof. The ruthenium-based supported catalyst provided by the invention comprises a composite carrier and ruthenium supported on the composite carrier, the composite carrier is one or more of a perovskite type metal oxide and an alkali metal oxide, an alkali metal hydroxide, an alkaline earth metal oxide and an alkaline earth metal hydroxide which are dispersed on the surface of the perovskite type metal oxide; the preparation method of the composite carrier comprises the following steps: mixing a perovskite type oxide with an alkali metal hydride and / or an alkaline earth metal hydride, and carrying out first calcination; soaking the first calcined product in a solvent to obtain a composite carrier; the perovskite type oxide comprises one or two of MgTiO3 (magnesium titanate), SrTiO5 (strontium titanate), BaTiO3 (barium titanate) and CaTiO3 (calcium titanate); the solvent comprises an alcohol solvent and / or water. The catalyst provided by the invention can catalyze an ammonia synthesis reaction under a relatively low pressure.

The invention relates to the technical field of refractory materials, in particular to an antioxidant and application thereof in steel ladle slag line bricks, and the antioxidant comprises a Si / SiC multiphase material, modified nano Al2O3 and CaF2; the ladle slag line brick comprises an antioxidant, fused magnesite, crystalline flake graphite and phenolic resin. Si-SiC compound waste is subjected to magnetic separation and acid pickling, then a SiO2 passivation layer is formed through pre-oxidation, moisture and air in the storage period are isolated, and a titanate coupling agent is introduced to improve the wettability and compatibility with phenolic resin. P2O5 released by phosphate on the surface of the modified nano Al2O3 at a high temperature reacts with alkali (earth) metal migrated to a SiO2 oxide layer to prevent the alkali (earth) metal from forming a low-melting-point eutectic substance, CaF2 reacts with SiO2 along with temperature rise, a passivation layer is broken, internal Si and SiC are directly exposed, and boron oxide of the modified nano Al2O3 remarkably reduces activation energy and a temperature threshold value of the reaction of CaF2 and SiO2.

The present invention relates to a sodium zirconium silicon phosphorus oxygen solid electrolyte material, a preparation method thereof, and an application thereof. The chemical general formula of the sodium zirconium silicon phosphorus oxygen solid electrolyte material is Na 3‑x+y Zr 2‑x Ta x Si 2‑y Al y PO 12 ; wherein, the value ranges of x and y are 0.01 ≤ y ≤ x < 2, and the values of x and y satisfy the charge balance of the chemical formula. By designing a Ta-Al double substitution strategy, Ta + substitutes Zr 4+ sites in sodium zirconium silicon phosphorus oxygen, which can generate more sodium vacancies during the sintering process, thereby increasing the hopping probability of Na + , significantly changing the distribution of Na + , promoting the disordered Na + framework of the sodium zirconium silicon phosphorus oxygen solid electrolyte material, and further stabilizing its crystal phase and increasing the ionic conductivity. To prevent the reduction of the concentration of mobile Na + and the ionic conductivity caused by excessive sodium vacancies, a double substitution method of low-valent alkaline earth metal cations Al 3+ is used to adjust the optimal Na + concentration by substituting and doping inequivalent cations at the Si or Zr sites to increase the ionic conductivity. This material can be used in solid sodium ion batteries and metal sodium batteries.

The present application relates to the field of carbon capture. Embodiments of the present application provide systems, devices, and methods relating to metal hydroxide looping for capturing atmospheric carbon dioxide. Related systems for the electrolytic production of acids and bases for chemical processing and for materials handling are also described.

The present disclosure relates to a method for processing of liquefied waste plastics (LWP). The method includes subjecting a liquefied waste plastic-based feedstock to heat treatment (HT processing) in an aqueous solution containing alkali metal hydroxide and / or alkaline earth metal hydroxide to form a heat treated effluent, transferring the heat treated effluent to a separator, subjecting the heat treated effluent to phase separation to isolate at least an oil phase including treated LWP and an aqueous phase including contaminated material, and recycling at least a part of the aqueous phase back to the HT processing.

The invention discloses a preparation method of a doped and modified silicon-based negative electrode material, and aims to solve the problems of poor cycle performance and the like caused by large volume expansion and poor conductivity of the existing silicon-based negative electrode material. The method comprises the following steps: mixing nano silicon powder with a transition metal and alkaline earth metal composite doping source and a carbon source in a specific ratio, carrying out differential ball milling treatment twice, carrying out a gradient calcination process, and finally carrying out carbon nanotube coating in a fluidized bed by utilizing a chemical vapor deposition method. According to the invention, a conductive-buffer dual-function network is constructed through dual-metal synergistic doping, and a gradient heat treatment process is combined to optimize the crystallinity and pore structure of the material, so that the first coulombic efficiency of the prepared negative electrode material reaches 87% or more, the volume expansion rate is reduced to 150%, and the capacity retention rate exceeds 92% after 100 cycles; and the electrochemical performance and the structural stability of the silicon-based negative electrode material are remarkably improved.

The invention relates to the technical field of glass, in particular to an alkali-free aluminoborosilicate glass composite clarifying agent and a clarifying method thereof. The alkali-free aluminoborosilicate glass composite clarifying agent is prepared from the following raw materials in percentage by mass on the basis of the total mass of alkali-free aluminoborosilicate glass: 0.4 to 5.5 percent of halogen alkaline earth metal salt, 0.03 to 0.4 percent of lanthanum oxide, 0.01 to 0.4 percent of tin dioxide and 0.01 to 0.3 percent of cerium dioxide. The alkali-free aluminoborosilicate glass composite clarifying agent is applied to alkali-free aluminoborosilicate glass, and the problems that the alkali-free aluminoborosilicate glass is poor in clarifying effect and has many bubble defects are solved; the corrosion of high-temperature molten glass to refractory materials at parts such as a tank furnace and the like is reduced, so that the number of stone defects of the refractory materials in the glass is reduced, and the service life of the refractory materials of the furnace is prolonged.

The present disclosure, in various embodiments, discloses hydrothermal methods, hydrothermally modified materials and dried hydrothermally modified materials. Certain dried hydrothermally modified materials can readily releases ionic species such as alkali metal ions (K+, Na+), silicate salts, and alkaline earth metal ions (Mg2+, Ca2+). Some dried hydrothermally modified materials can readily release aluminum ions and / or silicon, such as in the form of soluble silicates. Such processes and materials are useful, for example in economically preparing potassium releasing fertilizers.

The invention provides an impurity removal method of a gallium-rich solution for a gallium-based fluorescent powder precursor, and belongs to the field of preparation of gallium-based fluorescent powder precursors. The method comprises the following steps: adding an oxidizing agent into an initial gallium-rich solution to carry out a first reaction so as to remove organic impurities in the initial gallium-rich solution and obtain a first gallium-rich solution; adding a composite impurity removal reagent into the first gallium-rich solution to carry out a second reaction to remove impurity elements such as calcium, silicon and vanadium in the first gallium-rich solution so as to obtain a second gallium-rich solution; and adding a sulfide type reagent into the second gallium-rich solution to carry out a third reaction so as to remove copper and iron impurity elements in the second gallium-rich solution, thereby obtaining the gallium-rich solution for the gallium-based fluorescent powder precursor. According to the method, various key impurity elements such as organic matters, alkaline earth metals, metalloids and heavy metals are directionally and efficiently removed through the impurity removal logic of oxidation impurity breaking, synergistic precipitation and deep vulcanization, so that the total content of the key impurity elements in the gallium-rich solution is remarkably reduced.

The present invention relates to a sodium ion battery comprising a positive electrode composition having improved battery performance and moisture and air stability. The positive electrode composition has the general formula NaxAzNiiMyMnjTikSbfO2, where A is an alkali metal or alkaline earth metal selected from Ca, Li, M is a divalent element or trivalent element selected from Fe, Mg, Zn, Cu, Al, Co, and Ni is a divalent element, Mn, Ti are tetravalent elements, and Sb is a pentavalent element / trivalent element, where (i + j + k + f + y = 1), 0.7 < = x < = 1, 0 < = z < = 0.2, 0.1 < = i < = 0.6, 0 < = y < = 0.5, 0.1 < = j < = 0.5, 0.05 < = k < = 0.4, and 0 < = f < = 0.2. The invention is suitable for energy storage application.

The invention discloses a hazelnut shell-based porous adsorption carbon material as well as a preparation method and application thereof, and the method for preparing the hazelnut shell-based porous adsorption carbon material comprises the following steps: carrying out pyrolysis carbonization on hazelnut shells to obtain hazelnut shell carbon; grinding and mixing the hazelnut shell carbon and an activating agent, and activating and pore-forming; and performing acid pickling, water washing and drying on the activated and pore-formed material to obtain the hazelnut shell-based porous carbon material. The hazelnut shell is used as a raw material, and the hazelnut shell-based porous adsorption carbon material with high specific surface area, high hardness, high pore volume, excellent adsorption performance and excellent cycle stability is prepared through an alkali activation process by combining the characteristics of high hardness and rich alkali metal and alkaline earth metal of the hazelnut shell; the method can be effectively applied to treatment of textile wastewater, papermaking wastewater or dye wastewater and the like, pollutants can be removed, resource utilization of waste biomass can be achieved, and the development concept of treating pollution with waste is achieved.

Provided are an electrode composition for an all-solid-state secondary battery, containing an amorphous solid electrolyte and an active material, in which the solid electrolyte contains a metal-containing oxide containing at least one of an alkali metal element or an alkaline earth metal element and an oxygen element, at least one metal salt of an alkali metal salt or an alkaline earth metal salt, and water, and a ratio of a median diameter M of the active material to a median diameter N of the solid electrolyte is 1.2 ≤ M / N ≤ 5.0; an electrode sheet for an all-solid-state secondary battery and an all-solid-state secondary battery using the same; and a manufacturing method thereof.

The invention relates to a composition in powder form, comprising an alkaline earth metal peroxide, alkalophilic or alkalotolerant aerobic saprophytic microorganisms, nutritive ingredients for these microorganisms, and optionally a base; and a solution as well as microspheres, their preparation processes and their uses in the decontamination of environments such as soils and aqueous media. figure for abstract: no figure

The present invention is drawn to an adhesive or binder composition comprising, —a cationic polyelectrolyte, —an anionic polyelectrolyte, —a mineral salt selected from the group consisting of alkaline metal or alkaline earth metal halogenides, —a particulate mineral filler, —a water-soluble polyphenol comprising at least one polyhydroxylated aromatic ring structure, and —water It is also drawn to the use of such a composition as an adhesive, binder, coating or sealant in the construction industry.

The invention provides a conductive paste and a preparation method and application thereof, and the conductive paste comprises 84-91 wt% of a conductive phase, 0.8-5.2 wt% of a glass phase, 4-11 wt% of an organic carrier, 0.1-3 wt% of a dispersant, and the balance of a solvent. The conductive phase comprises 5-60 wt% of nickel alloy powder and 40-95 wt% of silver powder, the nickel alloy powder comprises at least one nickel alloy compound, the nickel alloy compound has a general formula of Ni-alpha-beta-gamma, alpha, beta and gamma are three non-nickel elements which are different from one another, and the sum of the alpha, the beta and the gamma is 100%. The elements alpha, beta and gamma are respectively selected from any one of transition metal, rare earth metal, alkaline earth metal and other non-nickel elements, the mass content of the nickel element is 10-99 wt%, and the sum of the mass content of the elements alpha, beta and gamma is 1-90 wt%. Nickel elements and non-nickel elements alpha, beta and gamma in a proper mass ratio are screened to form nickel alloy powder, so that the physical and chemical properties of the nickel alloy powder are improved, the ratio of the nickel alloy powder for replacing silver powder is increased, the electrical properties in the conductive slurry can be guaranteed, and the cost of the slurry is remarkably reduced.