54 results about "Barium Ion" patented technology

The invention discloses a low-molecular scale-inhibiting thickening agent for deep coal rock gas reservoir fracturing and a preparation method of the thickening agent. The thickening agent comprises 25-40 parts of a hydrophilic monomer; 3-6 parts of a scale inhibition monomer; 3-5 parts of a functional monomer; 50 to 55 parts of deionized water; 0.5 to 0.8 part of an emulsifier; 0.15 part to 0.2 part of an initiator; 1.5 to 3 parts of hydrophobic monomer; and a proper amount of a pH regulator. According to the prepared scale inhibitor, the sand-carrying performance of fracturing fluid is met, meanwhile, groups with the scale inhibition function are innovatively introduced, during gel breaking, macromolecular chains are broken to release the scale inhibition groups, the scale inhibition groups are complexed with calcium and barium ions in formation water, scale deposition is inhibited, the effect and safety of fracturing construction can be further improved, and powerful guarantee is provided for efficient development of oil and gas fields.

The invention relates to an adsorbent based on an X molecular sieve and preparation and application thereof, and a preparation method of the adsorbent comprises the following steps: (1) mixing the X molecular sieve with a binder, molding and roasting to obtain a molded body; (2) treating the molded body obtained in the step (1) with an alkali solution to perform in-situ crystallization on the binder in the molded body to obtain a crystallized product; (3) carrying out partial barium ion exchange on the crystallized product obtained in the step (2) by using a barium salt solution, and drying to obtain a dried product; (4) carrying out ammonium ion exchange on the dried product obtained in the step (3) by using an ammonium salt solution, and roasting in a flowing atmosphere to obtain a roasted product; and (5) performing barium ion exchange and optional potassium ion exchange on the roasted product obtained in the step (4), and then drying to obtain the adsorbent. The adsorbent has at least two kinds of mesoporous channels with different apertures, has high barium ion exchange capacity, high adsorption capacity and compressive strength, and shows good adsorption selectivity and mass transfer performance when used for adsorption separation of p-xylene.

The invention relates to the technical field of organic high-molecular compounds, and discloses a carbon black-containing polyurethane-based foaming composite material and a preparation method thereof. The preparation method of the carbon black-containing polyurethane-based foaming composite material comprises the following steps: reacting p-aminobenzaldehyde with phosphoric acid to generate a phosphorus-containing compound, and introducing barium ions to obtain a modified phosphorus-containing compound; reacting the modified phosphorus-containing compound with the polyhydroxy esterification product to obtain flame-retardant polyol; modifying polyethylene glycol by a nitrogen-containing compound to obtain modified polyethylene glycol; the preparation method comprises the following steps: adding modified polyethylene glycol, flame-retardant polyol and modified carbon black into a polyurethane system to prepare a polyurethane foam material; introducing a silicon dioxide aerogel layer on the surface of the polyurethane foaming material to obtain a polyurethane-based foaming composite material containing carbon black; the carbon black-containing polyurethane-based foaming composite material disclosed by the invention has excellent flame retardant property, antistatic property and mechanical property.

The invention belongs to the technical field of crystals, and particularly relates to a calcium fluoride crystal doped with metal ions, a preparation method of the calcium fluoride crystal and application of the calcium fluoride crystal in optical elements. The crystal is a calcium fluoride crystal doped with magnesium ions and barium ions, and in the preparation method of the crystal, the magnesium ions and the barium ions for doping are pretreated and coated with a calcium fluoride precursor, and the calcium fluoride crystal which is uniform in doping and excellent in performance is prepared by combining a traditional Bridgman-Stockbarger method with a gradient doping process. The crystal is applied to an excimer laser lighting system, and after an optical element manufactured by the crystal is exposed to gamma radiation larger than 2.8 Mrads, the 515 / 380 nm transmittance loss ratio of the optical element is lower than 0.4.

The invention relates to the technical field of fuel cell new materials and new energy, in particular to an A-site high-entropy perovskite cathode material and a preparation method thereof. According to the technical scheme, the material comprises the following raw materials: Pr (NO3) 3.6 H2O, La (NO3) 3.6 H2O, Co (NO3) 2.6 H2O, CaCO3, BaCO3, SrCO3 and citric acid. The molar ratio of the praseodymium ions to the lanthanum ions to the cobalt ions to the calcium ions to the barium ions to the strontium ions to the citric acid is 1: (1-2). According to the invention, the A site of the perovskite material is doped with a plurality of elements, a rapid quenching preparation process is combined, the oxygen vacancy concentration and the proton conduction path can be optimized, the ORR activity and the conductivity can be improved, and excellent electrochemical performance and thermal stability can be shown through the synergistic effect of the plurality of elements and structural regulation and control, so that the performance of the cell can be improved.

The invention provides a positive electrode electrolyte, a preparation method of the positive electrode electrolyte and a flow battery, the positive electrode electrolyte comprises: an active material suitable for providing positive pentavalent vanadium ions; a dispersant; the cations comprise at least one of calcium ions, magnesium ions, sodium ions, barium ions, strontium ions and ammonium ions; and chloride ions. Therefore, the positive electrode electrolyte has relatively good stability, the solubility and the dispersity of positive pentavalent vanadium ions in the positive electrode electrolyte can be improved, precipitation is avoided, and the capacity and the energy density of the battery are further improved.

This invention relates to the field of high-purity material analysis technology, and discloses a method for simultaneously separating and enriching copper, cadmium, nickel, cobalt, zinc, lead, and barium in lithium carbonate. The steps are as follows: dissolving a lithium carbonate sample in nitric acid to obtain an acidified sample solution; adjusting the acidified sample solution to an alkaline pH range of 9.5-10.5 using an ammonia-ammonium acetate alkaline buffer solution; passing the alkaline solution through a solid-phase extraction column filled with iminodiacetic acid-type chelating resin, where copper, cadmium, nickel, cobalt, zinc, lead, and barium ions are selectively adsorbed onto the resin; and eluting the adsorbed heavy metal ions with acid to achieve separation and enrichment. This invention effectively overcomes the inhibition and interference of the lithium carbonate matrix on the detection of trace heavy metals, and in particular significantly improves the adsorption and recovery rate of elements such as barium. It achieves efficient separation and enrichment of multiple heavy metals in complex matrices, providing a reliable pretreatment solution for high-sensitivity and high-accuracy quality control analysis of lithium carbonate products.

A coated nanocluster (10) comprises: a core (20) including an aggregate of magnesium oxide particles; and a shell (30) covering the core (20). The shell (30) has a coating layer (31) containing at least one of a nitrate and a nitrite, and carbonate particles (32) dispersed in the coating layer (31). At least one of the nitrate and the nitrite contains an alkali metal ion. The carbonate particles (32) contain at least one selected from a calcium ion, a strontium ion, and a barium ion. The molar ratio of the carbonate particles (32) constituting the shell (30) to the magnesium oxide particles constituting the core (20) is more than 0.005 and 0.015 or less.

The application belongs to the technical field of ion detection, and particularly relates to a furan fused derivative material and application thereof in barium ion detection. In order to solve the problems of the prior art, such as complicated and complex detection, high cost, poor detection sensitivity, and unsuitability for real-time analysis, etc. in the detection of barium ions, the application provides a furan fused derivative material. The furan fused derivative material is used as an active layer of an OECT, a designed and synthesized azacrown-6 crown ether material is modified above the active layer, selectivity is provided by the azacrown ether, a full-plane barium ion sensor is prepared, and the purpose of real-time detection of barium ion concentration with rapidity, accuracy and high sensitivity can be achieved. The detection limit is as low as 10nM, which is superior to most of the currently reported barium ion sensors, and greatly meets the detection requirements of environmental water samples.

The present invention relates to a device for electro-slowly releasing sulfate radicals in wastewater removal, which comprises a sulfate radical precipitation unit and a precipitation removal unit connected in sequence, and a sulfate radical detection unit arranged on the upstream pipeline communicating with the water inlet of the sulfate radical precipitation unit; the sulfate radical detection unit is used for detecting the concentration of sulfate ions contained in the raw water before entering the sulfate radical precipitation unit; the sulfate radical precipitation unit is used for releasing barium ions to the raw water according to the detected sulfate ion concentration, so that the barium ions react with the sulfate ions to generate barium sulfate, and the sulfate radical precipitation product water containing barium sulfate is obtained; the precipitation removal unit is used for removing the barium sulfate contained in the sulfate radical precipitation product water to obtain the precipitation removal product water. The present invention can accurately control the release rate of barium ions according to the concentration of sulfate radicals in the water body, and can recover the excessive barium ions in the water, overcoming the secondary pollution caused by the inability to accurately control the dosage of barium ions in the traditional precipitation method, and reducing the amount of sludge generated at the same time.

The invention relates to the field of photovoltaic technology, and discloses a photovoltaic cell gap reflective film and a preparation method and application thereof. The preparation method comprises the following steps: mixing a metal complexing agent and a PET material according to a mass ratio of (1-5): 100, and carrying out melt extrusion granulation to obtain PET master batches; the preparation method comprises the following steps: carrying out three-layer melt co-extrusion, two-way stretching and sizing on PET master batches, bonding resin and ionic polymer particles in specific parts by weight to obtain a base film; immersing the surface of the PET layer of the base film into a barium salt solution, adjusting the pH value of the solution system to 7-11, and stirring to enable barium ions to be fully complexed with the metal complexing agent on the surface of the PET layer; and dropwise adding a sulfate solution into the solution system, and maintaining stirring, so that the white BaSO4 layer is uniformly precipitated on the surface of the PET layer, and the gap reflective film is prepared. According to the method, the working procedures of coating, EVA film spraying, aluminum sputtering and the like are omitted, the efficiency is higher, the cost is lower, the reflectivity of the gap reflective film is high, the interlayer cohesiveness is higher, the service life of the gap reflective film is prolonged, and the reflection effect of the gap reflective film is improved.

A trapped ion system (100) for quantum computing configured to encode a first qubit in first and second metastable hyperfine states of a barium ion (105). 5

The invention discloses a method for extracting trace radium in uranium tailings. The method comprises the steps of tailings pretreatment, leaching, coprecipitation, dissolution and separation. According to the method, the characteristic that phosphate is difficult to dissolve is utilized, ions such as UO2 < 2 + >, Fe < 3 + >, Al < 3 + >, Ca < 2 + > and Ba < 2 + > existing in the uranium tailing leaching solution and Ra < 2 + > generate phosphate precipitates, synchronous enrichment of radium is achieved, after the radium is dissolved through diluted hydrochloric acid, the coexisting ions are separated and removed by utilizing the property difference between the coexisting ions and the Ra < 2 + >, and the radium-containing solution is obtained through purification. Compared with the prior art, the method has the advantages that the carbonate conversion step of sulfate is omitted, so that CO2 aerosol and radium-containing aerosol pollution generated by carbonate conversion is eliminated; the separation process time is shortened, and the operation difficulty is greatly reduced; barium ions are not additionally introduced in the whole process, and competitive ions similar to radium in property are greatly reduced; and the recovery rate of radium is improved by optimizing the leaching process.

A system and method of propane removal in a pre-purification unit (PPU) for an air separation unit is provided. The disclosed system and method involves the use of a capping layer of zeolite exchanged with moderate amounts of barium cations, preferably a barium exchange level of 50% on an equivalent basis. This reduced or moderate level of barium exchange achieves the required propane removal but with reduced costs and reduced environmental hazards compared to prior art solutions using highly exchanged barium levels. The barium containing zeolite for the capping layer is preferably in an agglomerated form, including beads and / or pellets, having an average particle size in a range of about 1 mm to 5 mm.

The invention discloses an environment-friendly flexible wearable anti-radiation composite material and a preparation method thereof. The anti-radiation composite material comprises: a support layer made of a high polymer material; the ionizing radiation shielding layer A is arranged on the supporting layer in a stacked mode, and the ionizing radiation shielding layer A is prepared from, by weight, a polymer base material, anti-radiation composite powder, a binding agent and an auxiliary agent; the flexible ionizing radiation shielding layer B is arranged on the ionizing radiation shielding layer A in a stacked mode, and the flexible ionizing radiation shielding layer B is a fiber material containing barium ions obtained through sulfonation reaction and ion exchange reaction. The anti-radiation composite material provided by the invention is flexible, non-toxic and wearable, has efficient ionizing radiation shielding performance, and can be used for manufacturing protective clothing, protective tents and the like.

The present invention relates to the technical field of scale and corrosion inhibitors, and discloses a preparation process of a neutral amino acid-based scale and corrosion inhibitor. The present invention reacts 3,5-dihydroxybenzaldehyde, taurine, epichlorohydrin, and N,N,N',N'-tetramethylethylenediamine to obtain a scale and corrosion inhibitor. The sulfonate and hydroxyl groups contained in the scale and corrosion inhibitor form stable chelates with barium ions and strontium ions, which can prevent the barium ions and strontium ions from combining with anions such as sulfate to form insoluble precipitates such as barium sulfate and strontium sulfate, thereby achieving excellent scale inhibition performance. The scale and corrosion inhibitor contains multiple active coordination centers of quaternary ammonium salt cations, sulfonate, and hydroxyl groups, which interact with the surface of a steel sheet to form a tight and firm protective film on the surface, preventing corrosive media such as hydrochloric acid from contacting the steel sheet, achieving excellent anti-corrosion and corrosion inhibition performance at high temperatures, and has good practical applications in oil field water injection and oil production.

A system and method of propane removal in a pre-purification unit (PPU) for an air separation unit is provided. The disclosed system and method involves the use of a capping layer of zeolite exchanged with moderate amounts of barium cations, preferably a barium exchange level of 50% on an equivalent basis. This reduced or moderate level of barium exchange achieves the required propane removal but with reduced costs and reduced environmental hazards compared to prior art solutions using highly exchanged barium levels. The barium containing zeolite for the capping layer is preferably in an agglomerated form, including beads and / or pellets, having an average particle size in a range of about 1 mm to 5 mm.

The invention discloses a phosphate radical-based multi-metal oxide radiation protection paste as well as a preparation method and application thereof. The radiation protection paste is a shear thinning paste formed by uniformly dispersing a nano-scale multi-metal phosphate radiation protection filler in a cross-linked polymer hydrogel matrix, the nano-scale multi-metal phosphate anti-radiation filler is nano-scale multi-metal phosphate prepared from phosphate ions, bismuth ions, barium ions and zirconium ions through an in-situ coordination precipitation method, and the molar ratio of the bismuth ions to the barium ions to the zirconium ions is (3-4): (1.5-2.5): 1. The mass of the nanoscale multi-metal phosphate accounts for 35%-65% of the total mass of the multi-metal oxide radiation protection paste; the cross-linked polymer hydrogel matrix is calcium ion cross-linked alginate hydrogel. The radiation protection paste has the remarkable advantages of being convenient to construct, free of lead or low in toxicity, high in adaptability to complex structures and the like, and an efficient, flexible and environment-friendly new scheme is provided for radiation protection.

The application provides a method for rapid detection of barium ions in oil-based drilling fluid and a method for preventing drill pipe blockage, the method for rapid detection of barium ions comprising the steps of: mixing an oil-based drilling fluid sample and a demulsification solvent, stirring uniformly to obtain a mixed solution; mixing the mixed solution with distilled water, stirring and then standing until oil and water are separated; filtering the lower water phase to obtain a colorless and clear liquid, adding a sodium chromate solution, and observing whether a yellow precipitate appears, if a yellow precipitate appears, it indicates that the oil-based drilling fluid contains barium ions, and if no yellow precipitate appears, it indicates that the oil-based drilling fluid does not contain barium ions. The method for preventing drill pipe blockage comprises: taking an oil-based drilling fluid sample to be detected to detect whether it contains barium ions; and taking preventive measures in advance to prevent the internal circulation channel of the drill pipe from being blocked in the case that it is determined that the oil-based drilling fluid contains barium ions. The application has the advantages of simple and rapid operation, low cost, and the result can be obtained within 30 min without special instruments, equipment and medicines.

The application discloses a microwave dielectric ceramic material, a preparation method and application thereof. The microwave dielectric ceramic material comprises a main crystal phase and a doping cation. The chemical formula of the main crystal phase is Mg(Ti2O5) x -Mg(Al2O4) (1‑x) wherein 0.17<=x<=0.26; the doping cation comprises at least one of barium ions, calcium ions, zinc ions, lanthanum ions, niobium ions and bismuth ions; the barium ions and the calcium ions replace magnesium ions in the main crystal phase, and the zinc ions, the lanthanum ions, the niobium ions and the bismuth ions replace magnesium ions, aluminum ions or titanium ions in the main crystal phase; the magnesium ions, the aluminum ions and the titanium ions in the main crystal phase are replaced by the barium ions, the calcium ions, the zinc ions, the lanthanum ions, the niobium ions and the bismuth ions, so that the crystal lattice in the main crystal phase is distorted, the final synthesis temperature is reduced, the dielectric constant and the volume temperature coefficient are adjusted, the dielectric loss is reduced, and the comprehensive performance of the microwave dielectric ceramic material is improved.

The invention relates to the technical field of blocking removers, and discloses a polymer composite blocking remover for an oil field and a preparation method thereof.A methacrylate-based phthalic acid monomer is subjected to a self-polymerization reaction under the initiation action of potassium persulfate to obtain a sodium phthalate polymer, and the sodium phthalate polymer is compounded with chelating agents such as ethylene diamine tetraacetic acid and the like to obtain the polymer composite blocking remover for the oil field. The polymer composite blocking remover is obtained. The sodium o-benzoate polymer contains a sodium phthalate group and has higher chelation adsorption capacity to barium ions, and meanwhile, the sodium o-benzoate polymer contains a nitrogen-containing urea group and also has certain coordination capacity to the barium ions, so that the blocking remover shows a very high corrosion rate to barium sulfate; and the sodium o-benzoate polymer is not easy to thermally decompose at a high temperature, still has a very high corrosion rate on barium sulfate, and is suitable for the field of blockage removal of barium scale in a high-temperature reservoir.

The invention belongs to the technical field of lithium ion battery materials, and discloses a method for preparing battery-grade lithium fluoride from lithium sulfate brine. The method comprises the following preparation steps: (1) preparing lithium oxalate: putting lithium sulfate brine into a reaction kettle, then adding barium oxalate for reaction, filtering, taking filtrate, concentrating, cooling and crystallizing to obtain lithium oxalate; (2) removing barium from lithium oxalate: dissolving lithium oxalate with deionized water, and performing deep barium removal in a resin impurity removal manner to ensure that the concentration of barium ions is less than or equal to 5ppm; and (3) charging reaction: adding the barium-removed lithium oxalate solution into an ammonium fluoride solution, stirring to react, filtering after the reaction is completed, taking a solid phase, washing, and drying to obtain the battery-grade lithium fluoride. According to the method disclosed by the invention, the battery-grade lithium fluoride can be prepared by adopting the lithium sulfate brine with high sodium level, the technological process is simple and short, the loss of lithium is reduced, and the raw material cost in the whole process is low.

This application discloses a continuous preparation method and system for nano-barium sulfate based on waste acid resource utilization and internal circulation. It belongs to the interdisciplinary technical field of industrial waste resource utilization and advanced inorganic nanomaterial preparation. It aims to solve the technical bottlenecks of traditional processes for preparing barium sulfate, such as wide particle size distribution, low purity, pollution caused by the formation of soluble barium nitrate from nitrate ions, and low resource utilization. The method uses industrial waste acid containing sulfuric acid and nitric acid and a barium source as raw materials. The two are fed into a dual-channel centrifugal atomizer for atomization, mixing and reaction. The molar ratio of sulfate ions to barium ions is controlled. After separation and washing of the reaction products, most of the acidic washing liquid is recycled for slurry preparation, a small part is bypassed for purification, and CO2 is recovered and recycled. Finally, the product is dried to obtain nano-barium sulfate powder.

The invention discloses a method for innocent treatment of manganese slag and barium slag through alternate washing, and belongs to the technical field of industrial dangerous solid waste treatment and recycling, and the method comprises the following steps: alternately washing the manganese slag and the barium slag with water for more than three times to realize innocent treatment of the manganese slag and the barium slag. According to the method, water is used as a carrier, soluble ions in one kind of waste are carried into another kind of waste, mutual solidification is achieved through a precipitation reaction, and therefore the leaching toxicity of the barium ions in the barium slag and the content of soluble manganese in the manganese slag are reduced at the same time, and cyclic utilization of washing water is achieved.

A method for removing sulfates from seawater by immersing a barium adsorbent into produced water to adsorb the barium ions from the produced water. The adsorbent is combined with an acidic solution that pulls the barium ions into the acidic solution. The acidic solution containing barium ions is combined with seawater to precipitate the sulfate as barium sulfate (BaSO4).

The invention relates to the technical field of barium slag innocent treatment, in particular to a method and device for co-production of barium carbonate through barium slag innocent treatment, barium slag is crushed and sieved, and the particle size of barium slag powder is strictly controlled to be smaller than or equal to 5 mm; then barium slag powder and a hydrochloric acid solution are mixed, heated and stirred for a reaction, the contact area of the action of barium slag and the hydrochloric acid solution is increased, the leaching treatment efficiency of the hydrochloric acid solution is improved, and through plate-frame pressure filtration, pressure filtration liquid can be fully separated from the pressure filtration liquid, and a large number of available barium resources are promoted to enter the pressure filtration liquid; the content of soluble barium in press filter residues is reduced, the leaching rate of barium ions in harmless residues is reduced, and the harmlessness is reduced; the press filtrate is subjected to collaborative sedimentation treatment by adopting a precipitator and a flocculant, so that barium ions dissolved in the press filtrate are fully utilized to generate a barium carbonate product, and then the steps of washing and drying are performed, so that the quality of the barium carbonate product is improved, the additional value of the whole process is improved, and the harmless treatment cost of the barium slag is reduced.

A method of selecting a pair of energy levels of an isotope of an ion for a quantum computer qubit, where the energy levels are metastable states. The qubit may be approximately magnetic field insensitive. First and second metastable states may comprise a D3 / 2 state or a D5 / 2 state and may be hyperfine states. The ion may be a barium ion. A magnetic field strength may be calculated where the qubit frequency is first order insensitive to the magnetic field for each pair of energy levels in a list and pairs of energy levels where the magnetic field strength has a value outside a magnetic field range are being discarded from the list. Pairs of energy levels for a qubit from the list may be selected where for each selected pair a ratio of one of off resonant shifts and a transition matrix element is one of: greater than a threshold ratio value; equal to the threshold ratio value; or less than the threshold ratio value. A gate simulation for each pair of energy levels on the list may be performed to determine a simulated error for a fixed noise model. One or more energy levels for the qubit from the list may be selected, where for each selected pair the simulated error is less than an error threshold value. The method may be used in a trapped ion system for quantum computing.

The invention relates to the technical field of coal gasification water treatment, and discloses a method for rapidly determining the content of sulfate radicals in a grey water dispersing agent. The method comprises the following steps: diluting a grey water dispersing agent to a required concentration, mixing a diluted to-be-detected sample solution with a hydrochloric acid solution for reaction, and eliminating the interference of carbonate and phosphate radicals in the dispersing agent; then mixing and reacting with an excessive barium chloride solution, so that sulfate radicals in the dispersing agent are completely converted into a barium sulfate indissolvable precipitate; then adding an ethylene diamine tetraacetic acid disodium magnesium solution, enhancing the terminal color mutation under the chrome black T indicator system through the replacement effect of excess barium ions and magnesium, and improving the terminal judgment sensitivity; in addition, the method further analyzes the total amount of calcium and magnesium in the dispersant, eliminates interference of calcium and magnesium ions, and ensures the accuracy of a test result. The method is simple to operate, wide in application range, small in analysis error, high in environmental friendliness and wide in application prospect in the field of coal gasification water treatment, and the use of a large amount of alcohol ketone solvents is avoided.

A method for utilising a trapped ion, e.g. a barium ion, for a quantum computing system, the trapped ion having an encoded quantum information unit, e.g. an encoded qubit, configurable to be in any one of a plurality of quantum states, the method comprising: a quantum operation process 150 that adjusts the quantum state of the quantum information unit, comprising the steps of: performing a check observation 110 of the trapped ion; and raising an error flag 112 in response to detecting the quantum information unit; and performing the corrective action 114 in response to the error flag. Quantum states comprise: an error state, a ground state; a metastable state manifold. The error state may comprise a loss state of the ion escaping entrapment. The check observation can be a fluorescence readout check and may comprise decay ground check. The quantum operation may comprise laser cooling. The method addresses errors in preparation and measurement of metastable qubits.

The invention relates to the technical field of building materials, in particular to a durable building material for resource utilization of solid waste barium slag and a preparation method of the durable building material. The material is composed of Portland cement, mineral powder, fly ash, stabilized barium slag, aggregate, a water reducing agent and the like. The barium slag modifier which is synthesized through three-step reaction and integrates the functions of chelation, permeation and oxidation has a synergistic effect with a sulfate radical slow-release agent and a trapping agent, soluble barium ions and sulfides in barium slag are converted into stable barium sulfate, and free sulfate radicals are removed. The stabilized barium slag serves as inert functional powder, and after the stabilized barium slag is compounded with other raw materials, the effects of micro aggregate filling and interface strengthening are achieved. According to the method, efficient detoxification and bulk digestion of the barium slag are achieved, the obtained material is low in leaching toxicity and good in mechanical property, has excellent sulfate corrosion resistance, volume stability and durability, is adaptive to existing production equipment, does not need to be greatly improved, conforms to the green and low-carbon development concept, and provides a reliable way for solid waste recycling.