29 results about "Nickel fluoride" patented technology

The invention discloses a clean production process for cyclic utilization of nickel-containing waste, which comprises the following steps: placing nitrogen trifluoride electrolysis nickel-containing waste residue in an electrothermal furnace, sublimating or decomposing ammonium bifluoride in the nickel-containing waste residue, condensing, liquefying and crystallizing through a condensing system to re-synthesize ammonium bifluoride for sale or reuse; the main components of the material a heated and volatilized by the electrothermal furnace are nickel fluoride, ferric fluoride and copper fluoride; adding the material a into an alkaline material solution for conversion leaching to obtain nickel hydroxide, ferric hydroxide and copper hydroxide, and converting a sodium hydroxide or potassium hydroxide solution into a sodium fluoride or potassium fluoride solution; adding an acid-carrying anolyte of a nickel electrolysis system into the obtained nickel hydroxide, ferric hydroxide and copper hydroxide slag, dissolving nickel hydroxide, ferric hydroxide and copper hydroxide into an electrolyte by using acid in the anolyte, removing metal impurities, and filtering to obtain a pure nickel electrolysis pre-solution; and electrolytic nickel with the nickel content larger than 99.96% of Ni is produced through insoluble anode electrolysis.

The invention provides a preparation method of dichlorohexafluorocyclopentene. Perhalogenated cyclopentene or / and perhalogenated cyclopentadiene is used as a raw material and reacts with HF and Cl2 in a tubular reactor filled with a catalyst to generate dichlorohexafluorocyclopentene, the catalyst needs to be used after being activated for 2-12 h in a mixed gas of HF and F2 at the temperature of 200-600 DEG C, and the catalyst is one or more of molybdenum fluoride, nickel fluoride, cobalt fluoride or molybdenum fluoride; the reaction conditions are as follows: the molar ratio of HF to Cl2 to octachlorocyclopentene or hexachlorocyclopentadiene is (4-10): (1-5): 1, the reaction temperature is 200-500 DEG C, the reaction pressure is 0-2.0 MPa, and the catalyst contact time is 5-90 seconds. According to the method, the reaction process is simple, the needed target object is prepared through one-step gas-phase catalytic fluorination, the method is suitable for large-scale production of dichlorohexafluorocyclopentene, the requirement for equipment is low, and the catalyst activity and stability are high.

The invention relates to the technical field of energetic materials, in particular to nickel fluoride catalyzed ammonium perchlorate / aluminum composite fuel and a preparation method and application thereof. The ammonium perchlorate / aluminum composite fuel consists of the following components in percentage by mass: 50-70% of ammonium perchlorate, 0-10% of nickel fluoride and the balance of aluminum powder. Due to the addition of NiF2, high and low decomposition peaks of AP are combined into a violent exothermic peak, and the temperature of the high-temperature decomposition peak is reduced by about 30 DEG C, which means that the burning rate of the propellant can be greatly improved; the heat effect of the fluorination reaction (55.98 kJ. G <-1 >) of aluminum is far higher than the heat effect of the oxidation reaction (31.05 kJ. G <-1 >) of aluminum, so that the explosion heat is improved by about 10% while the reaction path is optimized. Besides, the anhydrous NiF2 used in the formula is stable in physical and chemical properties and does not absorb moisture and deliquesce, the problem of long-term storage of common fluorides such as CuF2 and FeF3 is solved, and the product reliability is extremely high.

The invention relates to the technical field of anodic oxidation treatment, and discloses an anodic oxidation normal-temperature and high-temperature sealing treatment agent, the sealing treatment agent comprises a normal-temperature treatment agent and a high-temperature treatment agent, each liter of normal-temperature sealing liquid is composed of 1-3 g of nickel fluoride, 5-8 g of potassium sodium tartrate tetrahydrate, 10-15 mL of boehmite sol and 0.05-0.2 g of SrTiO3 / BPQDs heterojunction catalyst; each liter of the high-temperature confining liquid is composed of 3-8 g of lanthanum nitrate, 5-15 g of aluminum citrate, 0.1-1 g of PNIPAM, 0.4 g of PNIPAM and 1-3 g of boric acid. According to the invention, a compact composite film layer can be finally obtained.

This invention relates to a high-interfacial-wetting cathode material and its preparation method in the field of thermal battery technology. The material comprises a cathode active material and a halide cathode additive, wherein the halide cathode additive accounts for 5% to 20% by mass. The cathode active material is a sulfide cathode, including one or more of FeS2, CoS2, and NiS2. The halide cathode additive is a metal halide, including one or more of nickel chloride, cobalt chloride, nickel fluoride, and copper fluoride. This solution significantly reduces the interfacial impedance between the cathode and the electrolyte, improving power performance and discharge capacity.

The utility model relates to a kind of composite function glass substrate, including following laminar structure: glass substrate, the front of glass substrate includes plating area and extension area, the back of glass substrate includes extension area, viewing area and non-viewing area;The front plating area of glass substrate is successively laminated with zinc oxide plating layer, nickel plating and fluorinated nickel plating layer from inside to outside;The back non-viewing area of glass substrate is successively laminated with photosensitive color-changing ink silk printing layer and polyurethane resin protective layer from inside to outside;Wherein, the extension area of the front of glass substrate is spaced apart with 3D printing plastic strip, and a layer of metal chromium layer is covered in the remaining area of plastic strip and extension area.The cover plate integrates excellent conductivity, high corrosion resistance, high hardness and unique visual effect, and has high application value.

The invention provides a positive electrode material, a preparation method thereof and a secondary battery. The positive electrode material comprises nickel fluoride, ferric fluoride and cobalt fluoride, the molar ratio of the nickel fluoride to the ferric fluoride to the cobalt fluoride is (0.3-0.5): (0.2-0.4): (0.2-0.4), and the positive electrode material is a eutectic material. The positive electrode material disclosed by the invention is beneficial to improving the cycle performance and stability of the secondary battery.

The application discloses a transition metal fluoride super ionic conductor dielectric film and a preparation method thereof. The super ionic conductor dielectric film is prepared by a thermal evaporation method from a transition metal fluoride super ionic conductor. The transition metal fluoride super ionic conductor is selected from scandium fluoride, yttrium fluoride, titanium fluoride, hafnium fluoride, manganese fluoride, ferrous fluoride and nickel fluoride. In the application, the source material of the transition metal fluoride is heated and evaporated into a gaseous state in an evaporation system by the thermal evaporation method. The gaseous fluoride is directly adhered to a substrate placed on the upper side of the source material and recrystallized, so that the thickness of the transition metal fluoride is controllable, the number of defects is controllable and the integration is very high. The super ionic transition metal fluoride dielectric material can show great potential in the design and manufacture of new functional devices.

The invention provides a preparation method of a cobalt-nickel loaded silica gel type catalyst, which comprises the following steps: silica gel and a loading agent are mixed, the loading agent is composed of cobalt fluoride and nickel fluoride, the mass ratio of the silica gel to the loading agent is 1: 3, and the mass ratio of cobalt fluoride to nickel fluoride is 0.1-9: 1. After mixing, raising the temperature to 550-800 DEG C at the temperature raising speed of 1-5 DEG C / min, calcining, and preserving heat and calcining for at least 24 hours to obtain the catalyst. The invention also provides application of the cobalt-nickel loaded silica gel type catalyst and a synthesis method of allyl alcohol polyoxyethylene polyoxypropylene ether. The catalyst provided by the invention is beneficial to improving the reaction activity, the reaction speed and the reaction conversion rate, thereby being beneficial to improving the double bond retention rate of allyl alcohol polyoxyethylene polyoxypropylene ether and narrowing molecular distribution.

The invention provides a supported catalyst as well as preparation and application thereof. The supported catalyst comprises a main catalytic component and a co-catalytic component which are supported on a carrier, wherein the main catalytic component is selected from potassium fluoride, cesium fluoride or a combination thereof; the co-catalysis component is selected from one or more of the following components: magnesium fluoride, calcium fluoride, aluminum fluoride, nickel fluoride and ferric fluoride (III). The catalyst can be used for catalyzing the catalytic rearrangement reaction of perfluoro-2, 3-epoxy-2-methylpentane with extremely high catalytic activity to prepare perfluoro-2-methyl-3-pentanone, and has the advantages that the reaction yield is improved, the target product selectivity is improved, catalytic reaction conditions are easy to control, the service life of the catalyst is long and the like.

Surface modified substrates and related methods are provided. A substrate having a modified surface comprises a first region and a second region. The first region is located above the second region. The first region comprises a nickel fluoride. The second region comprises a nickel alloy. A concentration of the nickel fluoride gradually decreases from the first region to the second region.

A positive electrode active material inhibiting a decrease in discharge capacity due to charge and discharge cycles and a secondary battery including the positive electrode active material are provided. Alternatively, a secondary battery with a high level of safety is provided. The secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode, and an electrolyte. The positive electrode active material is formed by a first step of mixing a composite oxide containing lithium, cobalt, and oxygen, a magnesium source, and a nickel source to form a mixture and a second step of heating the mixture. The nickel source is nickel fluoride. Magnesium, nickel, and fluorine are segregated on the surface of the composite oxide.

The invention relates to a method for treating nickel-containing waste residues generated by nitrogen trifluoride electrolysis. The method comprises the following steps: crushing fluorine-containing nickel residues into solid powder; dissolving the fluorine-containing nickel slag solid powder by using an oxidizing solution, controlling the temperature to be 30-60 DEG C and the pH to be 3.5-5, and stirring until the fluorine-containing nickel slag is completely dissolved, so as to obtain a mixed turbid liquid a containing nickel fluoride, ammonium bifluoride and ferric hydroxide; filtering to obtain ferric hydroxide precipitate and a mixed solution b; adjusting the pH value of the mixed solution b to 7-9 by using a sodium hydroxide solution, and filtering to obtain a nickel fluoride solid and a mixed solution c; heating and concentrating the mixed solution c, and cooling and crystallizing to obtain a sodium fluoride crystal and an ammonium fluoride solution; and evaporating the ammonium fluoride solution to dryness to obtain ammonium fluoride crystals. According to the method, comprehensive recycling of the nickel-containing waste residues generated in the nitrogen trifluoride electrolysis process is achieved, the main nickel element is recycled, and it is ensured that other valuable elements such as fluorine and ammonium in the waste residues are effectively extracted and reused.

The invention relates to the technical field of sodium ion batteries, in particular to a preparation method of a sodium-nickel fluoride battery positive electrode material, the positive electrode material, a battery positive electrode and a battery. The preparation method of the sodium-nickel fluoride battery positive electrode material comprises the following steps: in the presence of a precipitator, carrying out a co-precipitation reaction on nickel fluoride and a sodium source in a solvent to obtain a precipitate; and drying the precipitate, and sintering in a nitrogen atmosphere to obtain the sodium-nickel fluoride battery positive electrode material. According to the sodium-nickel fluoride battery, by optimizing the preparation process of the positive electrode material, the internal resistance is remarkably reduced, the rate capability is improved, and the sodium-nickel fluoride battery can stably work in high-power application.

The present invention belongs to the technical field of hydrometallurgical generation of anhydrous nickel fluoride, and specifically relates to a method for preparing anhydrous nickel fluoride, wherein the preparation method uses nickel salt and ammonium hydrogen fluoride as raw materials, and obtains anhydrous nickel fluoride through four steps of liquid phase synthesis, filtration and washing, drying and grinding, and high temperature de-crystallization water. Compared with the prior art, the method for preparing anhydrous nickel fluoride provided by the present invention has the advantages of high safety, low equipment requirements, low production energy consumption, simple operation, good product batch stability, high purity, etc.

The invention relates to a preparation method of a hydrated ferronickel fluoride functional nano material, in particular to a low-temperature preparation method of a ferronickel compound functional nano material, which comprises the following steps: 1, generating a precipitate of a hydrated ferronickel fluoride (NiFeF5. 7H2O) material through liquid-phase synthesis, and then centrifuging and washing; and 2, solvent heat treatment: putting the hydrated ferronickel fluoride (NiFeF5. 7H2O) material prepared in the step 1 and an alcohol solvent into a reaction kettle for solvent heat treatment. In solvent heat treatment, processes such as crystal water removal and the like are carried out, and morphology and phase conversion is carried out in the processes, so that the hydrated ferronickel fluoride nano material (NiFeF5. 2H2O) is finally obtained. The hydrated ferronickel fluoride (NiFeF5. 2H2O) functional nano material contains fluorine anions with high electronegativity, and nickel and iron bimetals have rich redox valence states and a unique crystal structure, so that the hydrated ferronickel fluoride (NiFeF5. 2H2O) functional nano material is suitable for the related fields and many fields of electrochemistry, electrocatalysis and the like. Therefore, the method has a plurality of application prospects and application values.

Method comprising: forming a dummy gate structure (75) over a semiconductor fin (64); forming a dielectric layer (90) on opposite sides of the dummy gate structure (75); removing the dummy gate structure (75) to form a recess (92) in the dielectric layer (90); successively forming a gate dielectric layer (94) and at least one conductive layer (96, 98) over side walls and a bottom surface of the recess (92);and treating the gate dielectric layer (94) and the at least one conductive layer (96, 98) with a fluoride-containing chemical, wherein the treatment comprises forming a film over the at least one conductive layer (96, 98) using a fluoride-containing precursor, wherein the fluoride-containing precursor is molybdenum hexafluoride, MoF6, iron(II) fluoride, FeF2, iron(III) fluoride, FeF3, nickel(II) fluoride, NiF2, cobalt(II) fluoride, CoF2, chromium(II) fluoride, CrF2, chromium(III) fluoride, CrF3, copper(I) fluoride, CuF, molybdenum(III) fluoride, MoF3, titanium(III) fluoride, TiF3, titanium(IV) fluoride, TiF4, aluminum fluoride, AlF3, tetrafluorosilane, SiF4, manganese(II) fluoride, MnF2, zirconium(IV) fluoride, ZrF4, niobium(V) fluoride, NbF5, hafnium(IV) fluoride, HfF4, tantalum(V) fluoride, TaF5, sodium fluoride, NaF, potassium fluoride, KF, lithium fluoride, LiF, magnesium fluoride, MgF2, calcium fluoride, CaF2, barium fluoride, BaF2, zinc fluoride, ZnF2 or lead(II) fluoride, PbF2.;

Surface modified substrates and related methods are provided. A substrate having a modified surface comprises a first region and a second region. The first region is located above the second region. The first region comprises a nickel fluoride. The second region comprises a nickel alloy. A concentration of the nickel fluoride gradually decreases from the first region to the second region.

The present disclosure relates to a metal material for a container for storing high-purity hydrogen fluoride, and to a manufacturing method therefor. Specifically, the disclosure relates to a metal material for a container for storing high-purity hydrogen fluoride, and a manufacturing method therefor. The metal material includes a graphite layer on the surface of a metal substance, and nickel fluoride films formed in structural defect spaces within the graphite layer, so that corrosion resistance and scratch resistance are improved, and thus high-purity hydrogen fluoride, which is a corrosive gas, can be stored and transferred without being contaminated.

The utility model relates to a dual-heating fluorination sample preparation device for refractory mineral oxygen isotope microcell in-situ analysis. The dual-heating fluorination sample preparation device comprises a BrF5 gas storage bottle, a first-stage heating fluorination assembly and a second-stage heating fluorination assembly, the first-stage heating fluorination assembly adopts an infrared laser internal heating mode to rapidly heat aerosol particles generated by femtosecond ultraviolet laser denudation; the secondary heating fluorination assembly is used for carrying out secondary heating fluorination on aerosol particles which are not completely reacted in the primary heating fluorination assembly, and the secondary heating fluorination assembly adopts a spiral nickel fluorination pipe, so that a high-temperature fluorination path is increased, the fluorination reaction time is prolonged, and the reaction is more thorough. According to the invention, through continuous two-stage heating fluorination reaction, refractory mineral aerosol particles are completely reacted, fractionation is not generated, and the accuracy of a test result is improved.

The present application belongs to the technical field of sealant preparation, and discloses a one-component sealant, which comprises, by mass, 40-50 parts of α, ω-dihydroxy polysiloxane, 5-10 parts of hydrophobic fumed silica, 40-50 parts of nano calcium carbonate, 5-10 parts of silicon micropowder, 0.5-1 parts of carbon black, 1-2 parts of a dehydrating agent, 6-13 parts of a cross-linking agent, 0.01-0.1 parts of a catalyst, and 1-8 parts of an organic metal compound, wherein the organic metal compound is selected from at least one of tri(triphenylphosphine) copper fluoride, tri(triphenylphosphine) copper chloride, tri(triphenylphosphine) copper bromide, bis(triphenylphosphine) nickel difluoride, bis(triphenylphosphine) nickel dichloride, and bis(triphenylphosphine) nickel dibromide. The present application obtains a one-component sealant with good heat resistance and UV resistance through the above design. In addition, the present application also discloses a preparation method of the one-component sealant.

The present invention discloses a surface-coated modified AlH3 and a treatment method and application thereof. In the product of the present invention, AlH3 particles are coated with an inorganic shell layer to form a core-shell structure, and the thickness of the inorganic shell layer ranges from 10nm to 60nm; the particle size of the AlH3 particles ranges from 10μm to 90μm. The method is to use a nickel fluoride dispersion as a surface treatment agent, and to construct an AlH3@NiF2 core-shell structure material by reacting nickel fluoride, water, and Al(OH)3, Al2O3, etc. on the surface of AlH3. This method can effectively strengthen the surface structure of AlH3, and the thermal stability of the treated AlH3 is significantly improved compared to that before treatment. It can be used in the application of butyl hydroxy propellant and nitrate plasticized propellant to achieve stable drug formation, and solve the problem of pores caused by hydrogen release of AlH3 in the propellant. The method is simple to operate, green and efficient, easy to industrialize, and can be used for new solid propellants to improve their energy performance.

Provided is a method for producing an anode that does not easily cause an anode effect even when used in the electrolytic synthesis of fluorine gas by electrolysis of an electrolyte solution containing hydrogen fluoride and a metal fluoride. This method for producing an anode for fluorine gas electrolytic synthesis is provided with an anode polarization treatment step. The present invention provides a method for manufacturing a lithium ion secondary battery, the method comprising an anodic polarization treatment step in which an anode base material having a carbon material is immersed as an anode (21) and a cathode (22) is immersed in a mixed solution (10) for manufacturing an anode containing hydrogen fluoride, a metal fluoride, and potassium hexafluoronickelate, and an electric current is passed between the anode (21) and the cathode (22) to perform anodic polarization treatment of the anode base material. And a step for adhering nickel fluoride to the surface of the anode base.

Provided is a method for manufacturing an anode where the anode effect is not likely to occur even when an electrolytic solution containing hydrogen fluoride and a metal fluoride is electrolyzed and used for electrolytically synthesizing fluorine gas. The method for manufacturing an anode for fluorine gas electrolytic synthesis includes an anodic treatment step. The anodic treatment step is a step of immersing not only an anode (21) that is an anode substrate including a carbon material but also a cathode (22) in a mixed liquid (10) for manufacturing an anode containing hydrogen fluoride, a metal fluoride, and potassium hexafluoronickelate (IV) and causing a current to flow between the anode (21) and the cathode (22) to perform an anodic treatment of the anode substrate such that nickel fluoride is attached to a surface of the anode substrate.

A high-voltage high-entropy metal fluoride positive electrode, a preparation method and applications thereof belong to the technical field of lithium ion batteries. Copper fluoride, iron fluoride, cobalt fluoride, nickel fluoride and manganese fluoride are mixed, sodium alginate is added, and high-entropy metal fluoride material uniformly fused with sodium alginate is obtained under argon protection ball milling; then, ketjen black is added under argon protection, and ball milling is carried out under the same conditions; the powder obtained by ball milling is mixed with a Mxene aqueous dispersion, coated on a titanium foil after ball milling, and dried to obtain a high-entropy metal fluoride positive electrode combined with a conductive binder. The application of high-entropy materials and high-conductivity cross-linked binders to copper fluoride positive electrodes utilizes the improvement of the two on the conductive capacity and the protection effect on copper fluoride, as well as the cross-linking effect among CuF2, SA and MXene, improves the conductive performance and cycle stability of the positive electrode, and enables the average discharge voltage of the full battery to break through 2.5V, so that it can be used for assembling full batteries.

The application discloses a kind of resource processing technology of nickel-containing etching waste liquid, comprising the following steps: S1, pretreatment: adding lye to nickel-containing etching waste liquid to adjust pH to 3.5~4.0, then heated stirring treatment, again, standing aging treatment, obtain containing nickel fluoride turbidity liquid;S2, centrifugal: the centrifugal treatment of containing nickel fluoride turbidity liquid;S3, main reaction: with hot water to clean nickel fluoride by-product, cleaning wastewater is added to the etching waste liquid after pretreatment, then add hydrofluoric acid to adjust the ratio of ammonium fluoride and hydrofluoric acid to 0.9~1.2:1, after reaction, obtain reaction liquid;S4, concentration;S6, centrifugal;S7, drying: ammonium bifluoride crystal is dried to obtain ammonium bifluoride product.The application controls precipitated nickel fluoride by adjusting process conditions, solves the influence of nickel-ammonium complexation on the direction of treating nickel-containing etching waste liquid by precipitation method by pH control, reduces auxiliary material addition and environmental pollution, realizes resource recycling, and reduces production cost.

Surface modified substrates and related methods are provided. A substrate having a modified surface comprises a first region and a second region. The first region is located above the second region. The first region comprises a nickel fluoride. The second region comprises a nickel alloy. A concentration of the nickel fluoride gradually decreases from the first region to the second region.

The invention relates to a nickel fluoride production technology nickel carbonate extraction method and system, a storage medium and an intelligent terminal, and relates to the field of nickel fluoride production technologies, and the nickel fluoride production technology comprises the steps that after nickel carbonate precipitates are generated and filtered, a preset calcium carbonate flotation preorder step is executed; a first side image is obtained after the calcium carbonate flotation preorder step is executed; analyzing the first side image to obtain a first boundary height; based on the first boundary height and a preset basic flotation subsequent step, a first actual flotation subsequent step is determined and executed, wherein the basic flotation subsequent step comprises the steps that foam is collected; filtering and washing the collected foam; the nickel carbonate extraction method has the advantages that the calcium carbonate is floated on the surface through the calcium carbonate flotation method, so that the calcium carbonate is separated from the nickel carbonate, and the nickel carbonate extraction purity is improved.

The present disclosure provides surface modified substrates and related methods. A substrate having a modified surface includes a first region and a second region. The first region is positioned over the second region. The first region includes nickel fluoride. The second region includes a nickel alloy. The concentration of the nickel fluoride is gradually reduced from the first region to the second region.