84 results about "Beryllium" patented technology

The invention provides a lithium ore roasting waste heat recovery device and a process for extracting beryllium from lithium-containing ore. The waste heat recovery device comprises a box body, an adjusting mechanism and a heat exchange pipe. A first dispersion cover and a second dispersion cover are mounted on the left side and the right side of the box body through bolts, and the adjusting mechanism is located outside the second dispersion cover; the adjusting mechanism comprises a discharge pipe, a mounting cover and an adjusting motor, the discharge pipe is fixedly arranged at the outlet end of the second dispersion cover, and the mounting cover is hermetically mounted at the outer end of the discharge pipe through a bolt. The flow channel of the heat exchange element is designed to be of a reducing structure with a thick inlet and a thin outlet, at the moment, a high-temperature section at the inlet position can fully exchange heat, but the heat of smoke entering a low-temperature section is not higher than that of the high-temperature section, the inner diameter of the outlet section can be reduced, the smoke flow is small at the moment, and therefore most smoke can be gathered in the low-temperature section, and full heat exchange of the low-temperature section can be achieved.

The invention belongs to the technical field of geological sample analysis and detection, and particularly discloses a method for measuring the amount of each element of lithium ore in a closed acid-soluble system, and the method comprises the following steps: pretreating the lithium ore; the pretreated lithium ore is weighed and put into a closed sample dissolving device, hydrofluoric acid and purified nitric acid are sequentially added, and the closed sample dissolving device is closed; carrying out heat preservation on the closed sample dissolving device twice to obtain a test solution; and measuring the test solution by using an inductively coupled plasma mass spectrometer to obtain a working curve, and calculating the content of the analysis element in the sample solution by using the working curve. The method for determining the amount of each element in the lithium ore by adopting the closed acid-soluble system has the characteristics of simplicity in operation, high efficiency and good stability, realizes simultaneous determination of the amount of lithium, rubidium, cesium, beryllium, strontium, niobium, tantalum, zirconium, hafnium and rare earth elements in the large-batch lithium ore, and further provides a reference for determination of main trace elements in the lithium ore.

The invention discloses a beryllium element mineralizing reagent for lithium slag or beryllium-containing waste slag, a curing method and application, and relates to the field of slag treatment. The invention aims to solve the problems that the beryllium element in the existing lithium slag or beryllium-containing waste slag is difficult to cure, the curing structure is unstable in an acid environment, the curing mode is tedious and difficult in engineering application, the dosage of a curing agent is large, the compatibilization rate of the waste slag is high, and secondary lithium extraction and beryllium curing of the lithium slag are realized. According to the method, only the acidic phosphate needs to be added into the beryllium-containing waste residues or the lithium residues, or the phosphate needs to be added into the beryllium-containing waste residues or the lithium residues, and the staged acid environment exists, so that the using amount of the phosphate needed for curing the beryllium in the lithium residues or the beryllium-containing waste residues can be greatly reduced, a more stable mineralization effect is achieved, and the formed cured body has the beryllium adsorption capacity.

The application provides a beryllium glass leaching solution purification method, and belongs to the technical field of hydrometallurgy, and comprises the following steps: the beryllium glass leaching solution is heated to a preset temperature, and an alkaline calcium-based ore slurry is added to carry out pre-neutralization reaction to obtain a pre-neutralized solution; the pre-neutralized solution is subjected to first liquid-solid separation treatment to obtain a pre-neutralized liquid and a filter residue; the pre-neutralized liquid is subjected to deep iron and aluminum removal treatment according to a first deep iron and aluminum removal route or a second deep iron and aluminum removal route to obtain a beryllium-containing leaching solution and an iron and aluminum-containing leaching residue, so as to complete the purification of the beryllium glass leaching solution; the first deep iron and aluminum removal route comprises neutralization reaction treatment, second liquid-solid separation treatment and first pressure leaching treatment; the second deep iron and aluminum removal route comprises oxidation neutralization reaction treatment and second pressure leaching treatment. The application can solve the problems of existing technologies, such as the introduction of impurities, strict control, complex process and large beryllium loss.

The invention discloses a beryllium sheet embedded type sand blasting surface treatment method, and belongs to the technical field of plate surface treatment. The method comprises the following steps that S1, a sand blasting template is manufactured according to the shape of a beryllium sheet; the beryllium sheet is embedded into a counter bore in the sand blasting template; step S2, filling a gap between the beryllium sheet and the counter bore with a sand material to be blasted, finally performing sand blasting on one surface of the beryllium sheet, and cleaning sand grains left on the sand blasting template and the beryllium sheet; and S3, the beryllium piece is turned over, and after sand blasting is conducted on the other face of the beryllium piece according to the step S1 and the step S2, burr treatment is conducted. According to the method, it can be guaranteed that beryllium sheets are firmly clamped and not prone to flying out in the sand blasting process, the defects such as scratches, pits and smudginess are avoided, the method can be suitable for surface treatment of beryllium sheets of small sizes and different shapes, and the transmission effect of X rays is guaranteed.

The utility model provides a diamond-based metal target suitable for high-power density electron beams, which comprises a diamond base and at least one metal layer, the metal layer is arranged on one surface of the diamond base, and the metal layer is made of metal with high melting point, low vapor pressure and high atomic number. The base material is replaced by the diamond material to be combined with the metal target material for use, the heat conductivity of the diamond material is larger than or equal to 2200 W / mK, heat dissipation of electron beams of the target surface under high density is better facilitated, the X-ray generation efficiency is higher, and the service life of the target surface is prolonged. Compared with the service life of the metal film on the beryllium sheet, the service life of the metal film on the diamond is prolonged by several times; and compared with the originally usable electron beam, the power density is improved, so that the imaging is clearer. The product is simple in structure, good in heat conduction and heat dissipation effect, high in ray excitation efficiency, good in stability, long in service life and beneficial to application and popularization.

The invention relates to an accelerator thermal neutron radiation field double-target beam automatic adjusting device and method, and the device is characterized in that a particle transmitting end is used for transmitting an ion beam; the particle receiving end is arranged on the emission axis of the ion beam; the particle receiving end comprises two semicircular beryllium targets and a tantalum target, the projections of the two semicircular beryllium targets form a complete circle on the ion beam emission axis, the tantalum target is arranged at the outermost side line of the two semicircular beryllium targets, and the area of the tantalum target is smaller than one third of the area of the two semicircular beryllium targets; and the xy guider is arranged between the particle transmitting end and the particle receiving end, a deflection electric field is arranged in the xy guider, and the xy guider is used for acquiring the quantity of ions received by the two semicircular beryllium targets and the quantity of ions received by the tantalum targets respectively, adjusting the electric field intensity of the deflection electric field based on the quantity of ions and changing the shooting direction of the ion beam. The technical effects that manual adjustment is not needed, the monitoring efficiency is improved, and meanwhile the experience degree needed by adjustment is reduced are achieved.

The application relates to a method for producing beryllium glass powder by a water atomization method, which comprises the following steps: uniformly mixing beryl powder and calcite powder according to a mass ratio of 2:(1-1.1) to obtain a mixture; under vacuum or a protective atmosphere, performing induction smelting on the mixture to obtain a glass melt; wherein the temperature of the induction smelting is 1500-1700 DEG C, and the time is 30-120 min; taking the glass melt as raw material, performing powdering by a high-pressure water atomization method, cooling, drying, and obtaining beryllium glass powder; wherein when the high-pressure water atomization is performed, the glass melt flows down through the leakage eye of a tundish while being sprayed by a high-pressure water jet. The beryllium glass powder prepared by the method has excellent quality, can preferably meet the requirement of further extracting beryllium from the beryllium glass powder, the process flow of the method is short, the conversion rate of the furnace charge is high, and the preparation cost is reduced.

The invention relates to the technical field of mineral processing, and particularly discloses a method for leaching beryllium from low-grade chrysoberyl type beryllium ore. According to the method for leaching beryllium from the low-grade chrysoberyl type beryllium ore, firstly, the silica-alumina ratio of chrysoberyl type flotation beryllium concentrate is regulated and controlled, then granulation is conducted, then low-temperature alkaline roasting is conducted, the roasting temperature is lower than the chrysoberyl melting temperature, leaching is conducted through a sulfuric acid solution after roasting, and beryllium-rich leaching liquid is obtained through separation. The method has the advantages of low roasting temperature and high beryllium leaching rate.

The invention relates to a method for removing beryllium and thallium from lithium smelting slag through organic acid complexation, which comprises the following steps: (1) carrying out first mixing on the lithium smelting slag and an organic acid complexing agent solution with the pH value of 2.0-3.5, leaching, and carrying out first solid-liquid separation to obtain beryllium and thallium containing leachate and detoxified slag; and (2) carrying out second mixing on the beryllium-thallium-containing leaching solution obtained in the step (1) and an alkaline reagent, carrying out a neutralization reaction, then adding a precipitant, carrying out a precipitation reaction, and carrying out second solid-liquid separation to obtain a beryllium-thallium precipitation enriched product and a beryllium-thallium-removed solution. According to the method, the organic acid complexing agent solution is added for the leaching reaction, effective selective removal of toxic components beryllium and thallium in the lithium smelting slag under the low-acid condition is achieved, and the method can be used for solving the problems that at present, the content of toxic components in the lithium smelting slag is high, and environmental pollution is serious.

The application provides a method for efficiently removing beryllium and thallium in lithium residue, comprising the following steps: S1, providing lithium residue; the lithium residue contains beryllium and thallium, and the lithium residue has calcium aluminosilicate; S2, performing hydrothermal treatment on the lithium residue and an acid solution to obtain a reaction liquid; the acid solution comprises one or more of sulfuric acid solution, hydrochloric acid solution, nitric acid solution and phosphoric acid solution; the concentration of the acid solution is not less than 1 mol / L; the temperature of the hydrothermal treatment is not less than 100 DEG C, and the time of the hydrothermal treatment is not less than 2 h; and S3, performing solid-liquid separation on the reaction liquid to obtain a beryllium and thallium separation liquid and a detoxification residue. The application has excellent removal effect on beryllium and thallium in lithium residue, and can realize low-cost detoxification and reuse of the lithium residue.

This invention provides a method for stabilizing beryllium in lepidolite leaching residue, belonging to the field of lepidolite residue treatment technology. The method comprises the following steps: mixing lepidolite leaching residue with clay powder in a specific ratio, adding water, and pressing the mixture into bricks; firing the bricks in a muffle furnace; and then crushing, grinding, and testing the leaching toxicity of the fired clay bricks. This invention directly uses lepidolite leaching residue as raw material to prepare waste residue that can be safely discharged. It has low production costs, not only achieving resource recycling but also effectively stabilizing the excessive beryllium leaching toxicity in the residue. Furthermore, the resulting clay bricks can possess other excellent properties, meeting industry standards for waste residue discharge.

This application relates to a reagent and method for immobilizing beryllium and thallium in solid waste, belonging to the field of solid waste treatment technology. The reagent consists of a soluble sulfide and a soluble phosphate, wherein the mass ratio of the soluble sulfide to the soluble phosphate is 1:0.5 to 1:2. The method of application utilizes the synergistic effect of the soluble sulfide and soluble phosphate, optimizing the reagent ratio and process parameters to achieve simultaneous solidification of beryllium and thallium under ambient temperature and pressure conditions. After treatment, the thallium leaching concentration is <5 μg / L and the beryllium concentration is <1 μg / L, exceeding national standards. The resulting solidified body exhibits high stability and low disposal costs, effectively avoiding the risk of secondary leaching, significantly reducing the environmental risk of beryllium and thallium-containing solid wastes such as lithium smelting slag, achieving harmless disposal, and effectively solving the pollution problem of such wastes.

Methods for densifying articles produced by additive manufacturing processes, such as binder injection processes and laser powder bed melting processes, are described herein. The method can be used for manufacturing beryllium-containing articles. The article may have open cavity, designed internal structural features. In one embodiment, the method uses a sintering step prior to isostatic pressing.

The application belongs to the technical field of solid waste treatment, and particularly relates to a method for synergistically treating beryllium and thallium-containing waste residues. The method comprises the following steps: pretreating the beryllium and thallium-containing waste residues to obtain homogenized slag; mixing the homogenized slag with inorganic mineral materials, wherein the inorganic mineral materials comprise at least one of fly ash, zeolite and steel slag; adding water to obtain a mixed system containing the homogenized slag and the inorganic mineral materials, stirring, and curing the mixed system. The method can simultaneously and efficiently treat beryllium and thallium in the waste residues, and has mild reaction conditions and no secondary pollution.

The application provides a lithium ore roasting waste heat recovery device and a process for extracting beryllium from lithium-containing ore. It relates to the technical field of waste heat recovery, comprising a box, an adjusting mechanism and a heat exchange pipe; first and second dispersion covers are installed on the left and right sides of the box through bolts, and the adjusting mechanism is located outside the second dispersion cover; the adjusting mechanism comprises a discharge pipe, a mounting cover and an adjusting motor, the discharge pipe is fixedly arranged at the outlet end of the second dispersion cover, and the mounting cover is sealingly installed at the outer end of the discharge pipe through bolts; the smoke discharge channel is designed to be linked and adjusted in diameter, a variable cross-section flow channel is designed, and the heat exchange element flow channel is designed as a variable-diameter structure with a wide inlet and a narrow outlet; at this time, the high-temperature section at the inlet position can fully form heat exchange, but the heat of the flue gas entering the low-temperature section is not as high as that of the high-temperature section, so the inner diameter of the outlet section can be reduced; at this time, the flue gas flow is small, so most of the flue gas will gather in the low-temperature section, and sufficient heat exchange in the low-temperature section can be achieved.

Disclosed is a pellicle membrane comprising three or more layers, the three or more layers comprising at least one inner layer and at least one outer layer on either side of said at least one inner layer, wherein the at least one inner layer comprises and / or consists of one or more of boron, zirconium, beryllium, niobium, yttrium, molybdenum and / or carbon and / or one or more compounds of each of these materials. Also disclosed is a metrology apparatus which uses such a pellicle membrane as a beamsplitter and / or filter.

This invention discloses a method and system for the harmless treatment and beryllium ultrastable mineralization of lithium slag through agent-slag synergy, belonging to the field of solid waste treatment technology. It includes: dissolving active silica-alumina excitation components according to mineral diagnostic data to obtain a structural excitation liquid; simultaneously activating the lithium slag and the excitation liquid through mechanochemical processes, reconstructing the interface of the adsorbed excitation components, and generating a modified lithium slag matrix; preparing a mineralization assembly liquid based on the beryllium exposure of the matrix; introducing the assembly liquid into the matrix in a segmented gradient, controlling the hydrogen ion concentration to induce in-situ crystallization at the interface, and obtaining a primary stabilizer; pressing the stabilizer and placing it in an alternating electromagnetic field coupled with an endogenous exothermic environment to generate beryllium ultrastable mineralization products. This invention employs a comprehensive treatment method combining deep mechanochemical simultaneous activation and exposure with slow-release ion in-situ crystallization and endogenous thermomagnetic coupling to drive ordered cross-linking of the microstructure. This method can destroy the dense inert framework of the waste slag and forcibly drive the migration and trapping of heavy metals, ultimately achieving deep ultrastable mineralization and seepage prevention of beryllium toxic ions.

Beam delivery and / or beam aiming subsystems included in a fast neutron therapy system. The beam delivery subsystem comprises a beamline having linear and curved portions. Quadrupoles along the beamline focus particles conveyed between an axled input and a neutron source (e.g., beryllium). A bend magnet(s) directs the particles to collide with the neutron source to release neutrons. A gantry (e.g., concrete, steel) includes an annular rim and opposing annular flanges that form a radial cavity and a perimeter “shield zone” channel. A collimator assembly (e.g., steel) projects radially inward from a slot void in the annular rim. A secondary collimator (e.g., steel, hydrogenous material) presents a barrel extending radially toward the gantry isocenter. The two collimators contour the neutrons into a high linear energy transfer (LET) beam. A drive rotates the gantry to set the delivery angle over approximately 360 degrees about the isocenter (e.g., patient table).

The application relates to a kind of near-isotropic high-beryllium-content beryllium copper slab cooling free forging methods, and relates to a kind of forging method.The application aims to solve the problems of low beryllium content in the strip prepared by the existing method, obvious edge crack phenomenon of high-beryllium-content beryllium copper strip, reduced processing efficiency and large equipment investment.Method: I, preparation of ingot;II, cooling forging;III, quenching and post-treatment, to obtain high-beryllium-content beryllium copper strip for multiplier pole.The application can realize the preparation of beryllium copper strip for multiplier pole with beryllium content up to 3.5wt.%, and can greatly break the second phase by using cooling multi-directional forging, inhibit the generation of needle-like dynamic precipitation structure, obtain near-isotropic plate, and compared with rolling forming and extrusion forming, can obtain dense structure, large coil weight finished product.The application can obtain a kind of near-isotropic high-beryllium-content beryllium copper slab free forging method.

The invention relates to a deep continuous separation process and system for metal beryllium in a fluoride molten salt electrolysis cathode product. The separation process comprises the following steps: crushing the fluoride molten salt electrolysis cathode product to prepare a first product; the first product comprises metal beryllium and fluoride molten salt; fusing the fluoride fused salt of the first product under a vacuum condition, and applying a first pulsed magnetic field and a first pulsed electric field to the first product; continuously heating the first product, switching the first pulse type magnetic field into a second pulse type magnetic field and switching the first pulse type electric field into a second pulse type electric field after heating is finished, and entering a vacuum distillation stage; performing vacuum distillation to remove fluoride fused salt on the upper layer to prepare primary metal beryllium; and cleaning the primary metal beryllium with an aluminum chloride solution, and drying to obtain the high-purity metal beryllium. The method has the beneficial effects that the metal beryllium separation and purification cost can be reduced, and the separation efficiency is improved.

The present application relates to a kind of for beryllium and thallium pollution in lithium residue-based artificial soil Control method, the control method is to carry out hierarchical repair to lithium residue-based artificial soil, including the following steps: using first composite passivation agent, second composite passivation agent and third composite passivation agent are respectively applied to the ecological function layer, buffer control layer and solidification sequestration layer of lithium residue-based artificial soil, repair is carried out;Wherein, first composite passivation agent includes modified biochar matrix, struvite, humus and microbial inoculant;Second composite passivation agent includes modified biochar matrix and alkaline buffer material;Third composite passivation agent includes modified biochar matrix and strong alkaline solidification material.The present application designs different, multi-level passivation scheme according to the function of each soil layer of artificial soil, realizes accurate repair, to systematically solve the potential risk problem of beryllium, thallium pollution metal vertical migration in lithium residue-based artificial soil, guarantee the safe use of artificial soil.

The invention belongs to the field of alloys, and particularly relates to a high-hardness and high-conductivity beryllium-silver-copper alloy and a preparation method and application thereof. The preparation method comprises the following steps: on the basis of low beryllium content, introducing silver and zirconium elements in a specific ratio; secondly, pre-alloyed powder with low beryllium content is prepared by adopting a gas atomization process, and microscopic uniformity of components is ensured; and a hot isostatic pressing technology is used for consolidation forming to obtain a blank with fine grains and a compact structure. And high-density dislocation and stored energy are introduced into the material through subsequent large-deformation cold machining. Firstly, pre-aging is conducted at the low temperature, beryllium atoms are promoted to be rapidly gathered through deformation defects, and a fine and dispersed initial precipitated phase is formed; and finally, finishing final aging at a relatively high temperature, so that the size of a precipitated phase is moderately increased and tends to be stable. According to the uniform structure obtained on the basis of the powder metallurgy path, macrosegregation which is difficult to avoid in a traditional casting method is eliminated, and the material performance is optimized.

The present application relates to a kind of free-cutting composite zinc white copper pipe and its preparation method, copper 60.0~64.0%, nickel 14.0~17.0%, zinc 16.0~19.0%, iron 0.10~0.30%, manganese 0.20~0.40%, silicon 0.05~0.15%, tin 0.05~0.10%, aluminum 0.02~0.06%, bismuth 0.03~0.08%, phosphorus 0.11~0.15%, lead 0.21~0.25%, beryllium 0.1~0.2%, titanium 0.01~0.02%, the rest is inevitable impurity;Adjust each alloy element cooperation to realize alloy hardness HB≥150, tensile strength σb≥530MPa, elongation δ10≥12% after breaking, realize the synergistic optimization of hardness, tensile strength and elongation, satisfy the requirement of special-shaped product turning and forming processing.

The application discloses a growth method of large-size potassium fluoro-beryllium-borate crystal, which comprises the following steps: 1) loading raw materials containing potassium fluoro-beryllium-borate and flux into a boat-shaped crucible; wherein the boat-shaped crucible comprises a main structure and a long and narrow capillary elimination structure at one end of the main structure; 2) heating to completely melt and uniformly mix the raw materials in the boat-shaped crucible to form a melt; 3) taking the capillary elimination structure end of the boat-shaped crucible as a starting end to make the boat-shaped crucible horizontally pass through a temperature gradient zone; 4) after the boat-shaped crucible completely enters a low-temperature zone, cooling to make the crystal continue to grow in a vertical direction; 5) after the growth is completed, cooling to room temperature, acid washing to remove the flux, and the remaining potassium fluoro-beryllium-borate crystal is obtained. The potassium fluoro-beryllium-borate crystal prepared by the method has large transverse and longitudinal dimensions, can be cut and processed according to a phase matching angle to make a frequency doubling device.

The invention discloses an entropy-stable lithium-rich layered oxide positive electrode material as well as a preparation method and application thereof. The chemical general formula of the entropy-stable lithium-rich layered oxide positive electrode material is Li < 1.2-2x > Be < x > Na < x > Mn < 0.54 > Ni < 0.13 > Co < 0.13 > O < 2-x > F < x >, x is the molar percentage of the doping element, and the value range of x is 0.01-0.03. Dissolving a lithium source, a nickel salt, a cobalt salt, a manganese salt and a sodium salt in a citric acid aqueous solution according to a stoichiometric ratio to obtain a first solution; mixing a beryllium source, a fluorine source and the first solution according to a stoichiometric ratio to obtain a precursor solution; continuously stirring the precursor solution at the temperature of 50-100 DEG C to form precursor gel; pre-sintering the precursor gel in an air atmosphere at the temperature of 300-500 DEG C for 3-5 hours; and sintering at 700-1000 DEG C for 8-15 hours to obtain the entropy-stable lithium-rich layered oxide positive electrode material. According to the lithium-rich layered oxide positive electrode material prepared through an entropy stabilization strategy, the Be element and the Na element are doped to replace the Li element, the F element is doped to replace the O element, and the coulombic efficiency and the cycling stability of first charging and discharging are improved.

Disclosed herein are methods and kits employing colorimetric assays in which the presence of beryllium is indicated by visible color changes. Advantageously, according to an embodiment, a color change occurs almost immediately when a dye-containing substrate contacts beryllium, enabling rapid, quasi-real-time detection of beryllium without the use of complex instruments.

The application discloses an extremely low-temperature infrared filter and belongs to the technical field of microwave radio communication. The extremely low-temperature infrared filter comprises a filter shell, a filter assembly, an input joint and an output joint. The filter assembly comprises infrared wave-absorbing material filled in the filter shell and an inner conductor penetratingly arranged in the infrared wave-absorbing material. The two ends of the inner conductor are connected with the input joint and the output joint through an insulator. An injection hole and a gas permeation hole are formed on the filter shell, and the injection hole and the gas permeation hole are both provided with a gland. The filter shell and the inner conductor are both made of beryllium bronze gold-plated material, and the gland is made of non-magnetic material. The application is configured with the gland on the injection hole and the gas permeation hole, effectively prevents the material leakage of the filter in the superconducting environment, and effectively reduces the disturbance quantum bits. Furthermore, the filter shell and the inner conductor are made of beryllium bronze gold-plated material, so that the filter is adapted to the 10-20 mK extremely low-temperature working condition.

The invention relates to the technical field of ore beneficiation, and discloses a beneficiation separation and recovery method for beryllium ore containing magnetic impurities, which comprises the following steps: 1) crushing, 2) dense medium beneficiation, 3) magnetic separation, 4) reverse flotation, and 5) concentration: adding water into rough concentrate, mixing pulp, performing concentration twice, adding sodium carbonate to adjust the pH value to 7.5-9 in the concentration operation, using sodium sulfide and ferric trichloride as activators, and separating and recovering the beryllium ore containing the magnetic impurities to obtain the beryllium ore containing the magnetic impurities. Collecting beryllium-containing minerals by using an oleic acid collecting agent to obtain beryllium concentrate; the method is simple in technological process, high in adaptability and convenient to operate.