25 results about "Metaphosphate" patented technology

A negative electrode material for secondary battery use includes silicon-containing particles and coating layers covering at least part of the surfaces of the silicon-containing particles. The silicon-containing particles each include an ion conductive phase and silicon phases dispersed in the ion conductive phase. The coating layers contain at least one phosphate compound selected from the group consisting of a phosphate compound, a polyphosphate compound, and a metaphosphate compound, each of which contains an anion represented by general formula (1):In general formula (1), A represents an organic group or an oxygen atom.

The invention belongs to the technical field of cables, and particularly relates to an explosion-proof cable and a preparation method thereof.The cable comprises a cable core, a metal explosion-proof layer and an outer sheath layer, the outer sheath layer is formed by extruding and wrapping an outer sheath layer material on the outer side of the metal explosion-proof layer, and the outer sheath layer material is made of polyvinyl chloride as a base material. According to the invention, wollastonite is taken as a raw material, a functional filler and the like are taken as additives, mixing and extrusion granulation are carried out to prepare the material, the functional filler is prepared by grafting a polymer modifier with a hyperbranched structure on the surface of the wollastonite, and the existence of the polymer modifier enables the wollastonite to exist in the material in the form of a network center, so that the mechanical strength of the material is enhanced; the structure of the high-molecular modifier contains phosphorus and silicon elements, and during combustion, the high-molecular modifier can react with wollastonite to form a calcium metaphosphate glass body and generate a calcium-phosphorus-silicate ceramic layer, and the calcium-phosphorus-silicate ceramic layer cooperates with a carbon layer generated by acid source catalysis, so that the flame retardant property of the material is greatly improved.

The invention discloses an iron-doped nickel-cobalt metaphosphate electrode material based on an oxide intermediate and a preparation method and application thereof, and relates to the technical field of supercapacitors, the preparation method comprises the following steps: preparing an electrolyte containing a nickel salt, a cobalt salt and an iron salt, and carrying out electro-deposition on a conductive substrate to obtain the iron-doped nickel-cobalt metaphosphate electrode material. A nickel-cobalt-iron layered double hydroxide precursor is obtained; sintering the nickel-cobalt-iron layered double hydroxide precursor to prepare an intermediate; and phosphating the intermediate by taking sodium hypophosphite as a phosphorus source to finish the preparation. The invention also discloses the iron-doped nickel-cobalt metaphosphate electrode material based on the oxide intermediate prepared by the method and an application of the iron-doped nickel-cobalt metaphosphate electrode material in preparation of a supercapacitor. Through a unique pre-oxidation process and substrate optimization, the electrochemical performance of the electrode material is remarkably improved, and the problems that an existing metaphosphate material is poor in conductivity and insufficient in active site are solved.

The invention relates to a part made from synthetic graphite, preferably isostatic synthetic graphite, impregnated with aluminium metaphosphate Al(PO3)3, and characterised in that the aluminium metaphosphate content is at least 1% by weight for the cubic form and does not exceed 0.4% by weight, and preferably does not exceed 0.3% by weight, for monoclinic forms. Such a part has good resistance to oxidation and can be used under hydrothermal conditions.

A flame-retardant metal-resin composite material according to the present disclosure is a metal-resin composite material in which metal layers are laminated on both surfaces of a core material layer containing a resin. The core material layer contains a metal hydroxide, a resin having a specific polar group, and a flame retardant containing at least one compound selected from the group consisting of an inorganic polyphosphate compound, an inorganic phosphite compound, an inorganic phosphinate compound, an inorganic metaphosphate compound, a melamine compound, and a triazine compound.

The invention discloses a preparation method of water-soluble calcium phosphate, which comprises the following steps: S1, respectively preparing a phosphoric acid solution and a calcium carbonate suspension, and adding citric acid and hexametaphosphate into the phosphoric acid solution; s2, mixing the phosphoric acid solution and the calcium carbonate suspension, and reacting until the solution is clear; s3, performing spray drying to obtain a water-soluble calcium phosphate product. The whole reaction is simple, no redundant waste exists in the reaction process, and the production concept of green chemistry is met; the product is good in solubility, the calcium-phosphorus ratio is 2: 1, the solubility reaches 9g / 100ml water or above, calcium is not easy to separate out after the solution is placed, the product is relatively stable, the application field is wider, and the application effect is better.

The invention relates to anti-yellowing regenerated spandex and a preparation method thereof, the anti-yellowing regenerated spandex comprises recycled spandex, a chain extender and a chelating agent, the recycled spandex comprises one or more of spandex waste silk, spandex waste or spandex components of waste fabrics; the chain extender comprises a bifunctional epoxy compound; the chelating agent is prepared from one or more of triphenyl phosphate, tripolyphosphate, hexametaphosphate, amino trimethylene phosphonate and hydroxyethylidene diphosphonate. Recycled spandex is adopted as a main raw material, and yellowing of a product in the storage and use process is remarkably delayed on the basis of guaranteeing the comprehensive performance of the fiber through repolymerization and addition of specific functional auxiliaries.

The invention discloses a purification method of magnetite concentrate, and belongs to the technical field of extreme purification of magnetite concentrate. The purification method comprises the following steps: carrying out ultrafine grinding on a magnetite concentrate raw material, adding alkali metal hexametaphosphate and alkali metal silicate, carrying out flocculation desliming to obtain primarily purified magnetite, and adding a magnetite inhibitor, a composite collector and an activator into ore pulp containing the primarily purified magnetite for reverse flotation, the composite collecting agent comprises fatty amine and a zwitterionic surfactant, and the activating agent comprises a calcium compound and a rare earth compound. The separation and removal effects of gangue minerals and impurity metal elements are greatly improved through flocculation desliming and a specific flotation reagent system, the yield and recovery rate of the high-purity magnetite concentrate are improved while the grade of the magnetite concentrate is improved, and the method is simple, low in cost, small in reagent dosage in the flotation process, environmentally friendly and suitable for industrial application.

A tooth whitening chewing gum composition is disclosed that includes a combination of polyphosphates that enhances tooth whitening benefits with a minimal salty taste profile. In one embodiment, the tooth whitening chewing gum composition includes a gum base, a bulk sweetener, and about 0.5% to about 12% by weight, based on the total weight of the composition, of an alkali or alkaline earth metal pyrophosphate, an alkali or alkaline earth metal hexametaphosphate, or a combination thereof, wherein the alkali or alkaline earth metal pyrophosphate has a particle size, as determined using sieve analysis, such that less than 50% of the particles pass through a 25 mesh (707 micron) screen, and the alkali or alkaline earth metal hexametaphosphate has a particle size, as determined using sieve analysis, such that less than 50% of the particles pass through a 140 mesh (105 micron) screen.

The invention discloses a material for constructing a non-Newtonian fluid, the non-Newtonian fluid, a preparation method and a blast hole blocking device, and belongs to the technical field of blasting engineering. The material for constructing the non-Newtonian fluid is prepared from the following components in parts by mass: 53 to 77 parts of sodium bentonite, 10 to 18 parts of modified hectorite, 1 to 4 parts of water-soluble carbonate, 1 to 2 parts of water-soluble hexametaphosphate, 0.3 to 4.5 parts of polyethylene glycol and 0.2 to 4.5 parts of silicon dioxide. After the material for constructing the non-Newtonian fluid is mixed with water, the non-Newtonian fluid with high static viscosity and limited recovery time period can be formed, the limited recovery time is less than or equal to 5.8 s, and the static viscosity is greater than or equal to 8000 mPa.s, so that the non-Newtonian fluid has excellent impact load absorption efficiency and can well meet the blast hole filling requirement.

The invention relates to the technical field of battery materials, and discloses a lanthanum metaphosphate coated lithium cobalt oxide composite material and a preparation method thereof. The preparation method comprises the following steps: taking trivalent metal lanthanum salt and phosphate as raw materials, obtaining high-purity lanthanum metaphosphate through a solid phase method, then dispersing the lanthanum metaphosphate into a solvent, adding lithium cobalt oxide, and carrying out wet coating, so as to obtain the lithium cobalt oxide material coated with a lanthanum metaphosphate shell. The lanthanum metaphosphate coated lithium cobalt oxide composite material provided by the invention has excellent conductivity, rate capability and cycle performance.

The invention discloses a silicon-carbon composite negative electrode material and a preparation method and application thereof. The silicon-carbon composite negative electrode material comprises an inner core and a coating layer coating the inner core, the inner core comprises one or more silicon nanowires with the pipe diameter of 2-10 nm and the pipe length of 10-20 nm, magnesium silicate is dispersed and distributed on the surface layers of the silicon nanowires, the magnesium silicate is one or two of Mg2SiO4 and MgSiO3, fast ion conductors are uniformly distributed on the surfaces of the nanowires, and the fast ion conductors are uniformly distributed on the surfaces of the nanowires. The fast ion conductor is one of lithium aluminate, lithium metaphosphate and lithium phosphate; and the coating layer is a high-conductivity outer carbon layer. The silicon-carbon composite negative electrode material provided by the invention has the advantages that the rate performance and the cycle performance of the material are improved, and the structural strength of the material is also improved.

The application discloses a kind of magnetite concentrate purification methods, belong to magnetite concentrate extreme purification technical field.The purification method is to carry out superfine grinding after magnetite concentrate raw materials are added alkali metal hexametaphosphate and alkali metal silicate and flocculation desliming, obtain preliminary purification magnetite, again to the ore pulp containing preliminary purification magnetite is added magnetite inhibitor, composite collector and activator and carries out reverse flotation, namely, wherein, the composite collector includes fatty amine and zwitterionic surfactant, and the activator includes calcium compound and rare earth compound.The application greatly improves the separation and removal effect of gangue mineral and impurity metal element by flocculation desliming and specific flotation reagent system, improves the grade of magnetite concentrate while improving the yield and recovery rate of high-purity magnetite concentrate, the method is simple, low in cost, small in dosage of reagent in flotation process, green and environmentally friendly, suitable for industrial application.

A nano-silicon-graphite composite negative electrode material with carbon coating and aluminum metaphosphate composite modification layer on surface and its preparation method are disclosed, which is mainly prepared from following components by mass percentage: 4-10 wt. % of aluminum metaphosphate, 10 wt. % of asphalt cracking carbon, 15 wt. % of spherical nano-silicon powder, and 71-65 wt. % of graphite powder. A nano-silicon powder is added to deionized water for ultrasonic dispersion to obtain a uniform dispersion, then graphite powder is added to mix uniformly, and then waterborne asphalt is added. After stirring and mixing evenly, spray drying is carried out, and the dried powder is compounded with metaphosphate for mechanical fusion. Finally, the same is transferred into vacuum furnace for high-temperature carbonization to obtain the product. The composite modification layer existing on the surface can well inhibit the corrosion of the nano-silicon material by electrolytes, alleviate volume expansion, improve electrical conductivity, and increase cycle life.

The invention relates to the field of preparation of electrocatalytic ethanol oxidation catalysts, and discloses a high-stability catalytic material as well as preparation and application thereof. The catalytic material comprises a carbon nano tube as well as Pd particles and nickel metaphosphate which are loaded on the carbon nano tube; wherein on the basis of the total mass of the catalytic material, the mass content of the nickel metaphosphate is 20-60%. According to the catalytic material, good catalytic activity is guaranteed, and meanwhile the electro-catalytic stability of the catalytic material is effectively improved.

A synthetic graphite part, preferably isostatic, impregnated with aluminum metaphosphate Al(PO3)3, and characterized in that the aluminum metaphosphate content is at least 1 wt% for the cubic form and does not exceed 0.4 wt%, and preferably does not exceed 0.3 wt%, for the monoclinic forms. Such a part has good resistance to oxidation and can be used under hydrothermal conditions.

The invention provides a mineral-based composite agent for phosphorus and fluorine polluted water and an ecological restoration method, the mineral-based composite agent adopts a gradient shell-core structure microsphere, and comprises a core, a middle layer and a shell layer; the core comprises magnesium-aluminum layered double hydroxide which is induced and reconstructed by metaphosphate or polyphosphate, a calcium magnesium silicate glass phase and a first sodium alginate-chitosan bonding system; the middle layer comprises charcoal loaded with lanthanum-zirconium bimetal (hydrogen) oxide active sites, calcium peroxide microcapsules and a second sodium alginate-chitosan bonding system; the shell layer is coated with composite gel formed by sodium alginate and silica sol as a continuous phase and disperses magnetic iron oxide and microcrystalline clinoptilolite. According to the composite agent disclosed by the invention, trapping-enriching-mineralizing integrated fixation of PO4 < 3-> / F <-> is realized, the whole process does not depend on polymeric flocculants such as polyaluminum chloride, and the secondary salt load and the flocculation residue risk are remarkably reduced.

The invention relates to the technical field of metaphosphate preparation, in particular to a preparation method of monodisperse micron-sized magnesium metaphosphate, which comprises the following steps: (S1) adding basic magnesium carbonate into a reaction container, adding water to prepare slurry I, slowly adding phosphoric acid, heating to 30-40 DEG C, continuously and slowly adding phosphoric acid, heating to 50-60 DEG C, concentrating, dehydrating, washing and drying to obtain a solid; (S2) preparing slurry II from the solid and deionized water, adding ethanol and a particle size regulating agent, uniformly mixing, and performing centrifugal spray drying to obtain a crude product; the particle size regulating agent is prepared from magnesium stearate, polyol, polyvinyl alcohol and nanoscale magnesium metaphosphate; and (S3) calcining the crude product to obtain a monodisperse micron-sized magnesium metaphosphate product. According to the preparation method disclosed by the invention, a crude product with uniform particle size can be obtained by spray drying, adding ethanol and a particle size regulating agent and reasonably controlling a formula and spray drying parameters, and finally, the crude product is calcined to obtain the monodisperse micron-sized magnesium metaphosphate.

Eutectic composites can be used in oil and gas services. For example, a method of making such a composite can include crosslinking a mixture including a polymer, a metaphosphate, and a plurality of eutectic alloy particles to produce a eutectic composite, and producing a plurality of eutectic composite particles from the eutectic composite. Further, an example composition can include a cement; water; and a plurality of eutectic composite particles including eutectic alloy particles dispersed in a polymer crosslinked with a metaphosphate.

The application provides an electrode sheet and a battery. The electrode sheet comprises a current collector, a protective layer arranged on the surface of the current collector, and an active material layer arranged on the surface of the protective layer away from the current collector; and the protective layer comprises a metaphosphate. The application can avoid the short circuit phenomenon in the battery, and improve the safety and other performances of the battery.

Disclosed in the present invention is a passivation treatment liquid for a tinplate, which passivation treatment liquid comprises: chromic anhydride, which has a content of 15-30 g / L; metaphosphoric acid and / or a metaphosphate, which has a content of 5-15 g / L; ammonium bromide, which has a content of 1-5 g / L; and a nitrogen-containing organic compound, which has a content of 0.2-2 g / L. Further disclosed in the present invention are a tinplate treated with the passivation treatment liquid and a method for manufacturing the tinplate. The surface of the tinplate has good coating wettability and better paint film adhesion.

The present invention relates to a nanosilicon-graphite composite negative electrode material having a carbon coating and an aluminum metaphosphate composite modified layer on the surface and a method for producing the same, which is mainly produced by mass % from 4-10wt.% aluminum metaphosphate, 10wt.% pitch decomposition carbon, 15wt.% spherical nanosilicon powder, and 71-65wt.% graphite powder, and the nanosilicon powder is added to deionized water and ultrasonically dispersed, and then graphite powder is added and uniformly ultrasonically stirred, and then aqueous asphalt is added and uniformly stirred and mixed, and then spray dried, and the dried powder is combined with metaphosphate and mechanically fused, and finally transferred to a vacuum furnace for high-temperature carbonization. The present invention discloses a nanosilicon-graphite composite negative electrode material having a carbon coating and an aluminum metaphosphate composite modified layer, and the composite modified layer on the surface can effectively inhibit the corrosion of the nanosilicon material by the electrolyte, mitigate the volume expansion, improve the electrical conductivity, and improve the cycle life.

The invention discloses a high-entropy metaphosphate catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: by taking ammonium phosphate salt as a P source and metal salt as a structure control agent, mixing and grinding, transferring into a crucible, putting the crucible into a muffle furnace, heating to 800 DEG C in an air atmosphere, and reacting for 2 hours, so as to prepare the high-entropy metaphosphate catalyst, the method has the advantages of simple process and equipment, low energy consumption and the like, large-scale production is easy to realize, and the obtained high-entropy metaphosphate catalyst can be used for degrading organic dyes through a three-electron oxygen reduction reaction.

This invention relates to a process for the manufacture of potassium chloride granulate from crystalline potassium chloride raw material, whereby the potassium chloride raw material is treated in the presence of water and prior to granulation with at least one alkali metal carbonate and at least one metaphosphate. The invention also relates to the potassium chloride granulate obtained by the process of the invention.

The application discloses a preparation method and application of an organic acid modified aluminum metaphosphate supported nickel-palladium catalyst. A carrier Al(PO3)3, 4-trifluoromethyl salicylic acid (TFMSA), a nickel source and a palladium source are added into acetone, a suspension obtained by stirring at room temperature is dried in a vacuum drying box after removing the solvent acetone by rotary evaporation, and the obtained solid is ground into a solid powder by using a mortar. The solid powder is calcined in a tube furnace under an inert atmosphere and at a specified temperature, and is reduced under H2 atmosphere and at a specified temperature to obtain a black solid powder, which is the organic acid modified aluminum metaphosphate supported nickel-palladium catalyst and is recorded as NiPd-TFMSA / Al(PO3)3. The application also discloses an application of the organic acid modified aluminum metaphosphate supported nickel-palladium catalyst in catalytic hydrogenolysis of lignite and model compounds thereof.