14 results about "Barium sulphide" patented technology

The invention relates to the technical field of barium carbonate preparation, and provides a barium carbonate synthesis reactor and an application method thereof.The barium carbonate synthesis reactor comprises a tower body, a reaction pipe, a flow guide pipe and a sprayer, and the tower body, the reaction pipe and the flow guide pipe are coaxially arranged; the reaction tube is positioned in the tower body, and one end of the reaction tube extends out of the tower body; the flow guide pipe is located in the reaction pipe, and the flow guide pipe and the reaction pipe form a turbulent flow part used for reducing the gas flow rate and discharging reaction gas; the spray head is arranged on the reaction tube, and the spraying end of the spray head is positioned in the reaction tube and corresponds to the turbulent flow part. The reaction pipe and the flow guide pipe are arranged in the tower body, the reaction pipe extends out of the tower body, carbon dioxide gas can be conveniently input, and the flow guide pipe can conduct gas flow guide, so that the carbon dioxide gas can fully react with a barium sulfide solution sprayed by the spray heads on the periphery of the reaction pipe; meanwhile, the flow guide pipe is also used for outputting gas, so that gas output in the tower is realized, and the device is suitable for preparing barium carbonate by taking a barium sulfide solution as a raw material.

The utility model discloses a liquid-phase synthesis system of lithium sulfide. Comprising a first lithium sulfate dissolving device, a first barium sulfide dissolving device, a chemical combination reaction device, a first separation device and a second separation device, the liquid phase after-treatment unit is used for concentrating, purifying and drying the liquid phase to obtain lithium sulfide, and the solid phase after-treatment unit is used for washing and drying the solid phase to obtain barium sulfate; the first lithium sulfate dissolving device and the first barium sulfide dissolving device are both connected with a raw material inlet of the combination reaction device; and a reaction product outlet of the combination reaction device is connected with the first separation device. The liquid-phase synthesis system of the lithium sulfide has the advantages that products are easy to separate, the purity of the lithium sulfide products is high, the liquid-phase synthesis system of the lithium sulfide is very suitable for industrial-scale production, and the produced high-purity anhydrous lithium sulfide is very suitable for solid-state battery anode materials and has huge potential economic benefits.

This invention discloses a resource-based treatment system and method for barium sulfide slag. The system involves crushing and leaching the barium sulfide slag using a pretreatment unit, thereby leaching out the barium sulfide. The barium-enriched washing solution is then processed through an electrophoretic deep treatment unit to achieve high-value recovery of sulfur and barium elements, ultimately realizing the resource utilization of the barium slag. The entire process is pollution-free and has the advantages of being environmentally friendly, having high added value, high sulfur utilization efficiency, low cost, and simple operation. It is suitable for large-scale industrial applications and has broad market prospects and significant economic benefits.

The invention discloses a method and a system for adding a 3N electrolytic manganese metal additive. The method comprises the steps that S1, a manganese sulfate neutral solution is prepared, after manganese carbonate ore powder is subjected to acid dissolution, sodium dimethyl dithiocarbamate and a barium sulfide purifying agent are added to conduct impurity removal, purification and acid collection on the manganese sulfate solution, then air is introduced to remove iron, the manganese sulfate solution obtained after filter pressing is neutralized with ammonia water, the pH value of the solution is adjusted, and the qualified manganese sulfate electrolyte is prepared. According to the 3N electrolytic manganese metal additive adding method and system, an ammonium sulfite adding method is changed from adding in a manganese sulfate neutral liquid tank to dropwise adding an ammonium sulfite aqueous solution at a liquid inlet port of an electrolytic bath, and the concentration and the liquid inlet speed of the ammonium sulfite aqueous solution are controlled, so that the content of ammonium sulfite in the electrolytic bath is stable, and the condition of the electrolytic bath is stable; the addition amount of the additive is reduced, introduction of impurities is avoided, and meanwhile, oxidation-reduction reaction caused by too long retention time of ammonium sulfite in the liquid is reduced.

The invention provides a barium chloride production waste residue treatment method, and relates to the technical field of barium chloride production waste residue treatment, and the barium chloride production waste residue treatment method comprises the following steps: S1, carrying out ball milling on waste residues containing barium sulfate and barium sulfide, and then carrying out pre-oxidation and hydration treatment to obtain a barium hydroxide-containing turbid liquid; s2, dehydrating and drying the turbid liquid in the S1; s3, mixing and calcining the dried material and sodium carbonate to obtain a calcined product containing barium carbonate; s4, the calcined product is subjected to hot water leaching to remove soluble sodium salt, and water leaching residues are obtained; s5, first-stage acid leaching is conducted on the water leaching residues through low-concentration hydrochloric acid, and first-stage leaching liquid and first-stage filter residues are obtained through filtering; performing second-stage acid leaching on the first-stage filter residue by using high-concentration hydrochloric acid, and filtering to obtain a second-stage leaching solution; and S6, combining the first-stage leaching solution and the second-stage leaching solution, adjusting the pH value to 4.0-5.0, filtering and separating precipitates, and concentrating and crystallizing to obtain a barium chloride product. According to the method, efficient conversion and resource utilization of barium in the waste residues are achieved through the processes of pre-oxidation toxicity control, calcination conversion, gradient acid leaching and deep purification.

The present application relates to carbonization furnace technical field, especially point to barium sulfide black ash continuous reduction carbonization furnace, including base, the conveying pipeline far away from carbonization furnace body one end is connected with the purification box, the outer surface of the limiting block is connected with the air filter plate, the inside wall of the purification box is equipped with first clamping groove, the left side of the air filter plate and the inside of first clamping groove are engaged, the outer surface of the purification box is equipped with second clamping groove, the right upper end of the air filter plate is fixedly connected with the fixed block, the side surface of the purification box is equipped with installation groove, the bottom of the connecting column is fixedly connected with the clamping block, the outer surface of the connecting column is movably connected with the second spring, the first spring and the air filter plate are set, the air filter plate is convenient to take, the fixed block and the clamping block are set, and the efficiency of the purification box cleaning is improved.

The utility model discloses an integrated crude barium clarifying and washing system, the clarifying and washing system is used in a crude barium sulfide leaching device, and the crude barium sulfide leaching device comprises a feeding system, an auger leaching system, a clarifying and washing system and a deslagging system; the clarification washing system is formed by sequentially connecting a plurality of integrated clarification washing units, each integrated clarification washing unit comprises a clarification tank, a feeding auger, a tee joint, a first sludge pump, a connector, a second sludge pump, a connecting pipe and a transmission shaft, and the transmission shaft is a through shaft. The clarifying tank sequentially penetrates through the feeding auger, the tee joint, the first sludge pump, the connector and the second sludge pump, and the clarifying tank is positioned above the feeding auger and is integrated with the feeding auger. And the extraction rate of barium sulfide is improved.

The utility model discloses a continuous leaching device for crude barium sulfide. The continuous leaching device comprises a feeding system, an auger leaching system, a clarifying and washing system and a deslagging system, the feeding system, the auger leaching system, the clarifying and washing system and the deslagging system are sequentially connected, the feeding system is used for conveying coarse barium to the auger leaching system, the coarse barium in the auger leaching system is mixed with production return water injected into the auger leaching system, first leaching is completed, and a coarse barium sulfide solution is obtained; the crude barium sulfide solution enters the clarifying and washing system, the crude barium sulfide solution is subjected to continuous multiple clarification and washing in the clarifying and washing system to complete secondary leaching, and finished brine and sludge are obtained; the finished marinating liquid is fed into a finished product tank, and the slag sludge is discharged through the slag discharging system. And the extraction rate of barium sulfide is improved.

The invention relates to the technical field of barium carbonate preparation, and provides synthesis equipment and a preparation method of barium carbonate, the synthesis equipment comprises a reaction tower, injection valves, a medium pipe, a reaction pipe and a gas inlet pipe, the reaction tower is internally provided with a plurality of injection valves; the medium pipe is rotationally arranged in the reaction tower and is used for supplying a barium sulfide solution to the injection valve and driving the injection valve to be opened and closed; the reaction tube is arranged on one side of the injection valve, one end of the reaction tube extends out of the reaction tower and is opened, and the reaction tube is provided with an opening corresponding to the injection valve; one end of the gas inlet pipe is communicated with the reaction pipe, and the other end extends to the outer side of the reaction tower. The injection valve disclosed by the invention can perform intermittent injection to reserve time to increase the concentration of carbon dioxide in the reaction tube, so that sufficient reaction is ensured, and the yield of barium carbonate is favorably increased; meanwhile, the barium sulfide solution reacts with the carbon dioxide gas in the reaction tube, so that the residual hydrogen sulfide in the reaction tower can be reduced, the potential safety hazard is reduced, and the production safety is ensured.

The invention provides industrial-grade barium carbonate and a production method thereof, and relates to the technical field of barium carbonate production. The method comprises the following steps: S1, pretreating a barium sulfide crude product, performing hot filtration under the protection of inert gas, and then performing vacuum concentration and cooling to obtain a barium sulfide concentrated solution; s2, adjusting the barium sulfide concentrated solution to be alkaline, adding an antioxidant and a hydrolysis inhibitor into the barium sulfide concentrated solution under a stirring condition, and filtering through a PVDF membrane to obtain a barium sulfide solution; and S3, under the protection of inert gas, introducing carbon dioxide into the barium sulfide solution, and then carrying out desulfurization washing, vacuum filtration, drying and crushing to obtain barium carbonate. The purity of the industrial-grade barium carbonate is not lower than 99.9%, the content of chloride ions is not higher than 8 ppm, the content of sulfide is smaller than 50 ppm, the content of sulfate is smaller than 0.03%, the content of sulfite is smaller than 0.05%, and the content of iron ions is smaller than 5 ppm.

The invention provides a method for synchronously removing lead and arsenic from a solution containing nickel, lead and arsenic, which comprises the following steps: oxidizing the solution containing nickel, lead and arsenic to obtain an oxidized material; the oxidized material and barium sulfide are subjected to impurity removal treatment, and a purified material is obtained. The method provided by the invention can realize synchronous precipitation removal of lead and arsenic in the anolyte, the reaction process is short, the time is short, the slag amount is small, the production efficiency can be greatly improved, and the impurity removal cost is reduced.

The application relates to the technical field of barium element utilization in barite minerals, and specifically discloses a method for improving the utilization efficiency of barium elements in barite minerals. The method comprises the following steps: mixing crushed barite and crushed coal in a weight ratio of 1:(0.2-0.25), and then extruding and balling to obtain pellets, wherein the particle size of the pellets is 20-80 mm; the pellets are subjected to microwave roasting and crushing, the crushing product is subjected to water leaching to obtain a barium sulfide solution, and the barium residue is subjected to acid liquid dissolution and leaching, and then subjected to solid-liquid separation to obtain a barium ion solution and a residue stone. The method can significantly improve the yield of water-soluble BaS and the comprehensive utilization rate of barium elements in barite, and the process is environmentally friendly, low in pollution and high in production efficiency.

This disclosure provides a sulfide solid electrolyte prepared from barium slag leached from black ash and its preparation method. The preparation method of the sulfide solid electrolyte prepared from the aforementioned barium slag leached from black ash includes the following steps: mixing and ball-milling the barium slag leached from black ash with deionized water, and leaching it in a leaching device; hot filtering the leached residue to obtain barium sulfide leachate; pre-purifying industrial lithium sulfate; adding the barium sulfate leachate and purified lithium sulfate to a precursor and heating the mixture for reaction; hot filtering to obtain an electrolyte suspension; sequentially performing graded washing, solid-liquid extraction, and recrystallization on the electrolyte suspension using an organic solvent to separate and obtain a purified filter cake; vacuum drying and calcination to obtain a high-purity sulfide solid electrolyte. The low liquid-to-solid ratio leaching combined with co-current and counter-current leaching achieves resource utilization of the waste residue and improves the leaching rate. Multi-stage purification with organic solvents deeply removes impurities, resulting in a high-purity sulfide solid electrolyte.

The present invention provides an industrial-grade barium carbonate and a production method thereof, relating to the technical field of barium carbonate production. The method comprises the following steps: S1. After pre-treating crude barium sulfide, hot filtration is performed under inert gas protection, followed by reduced pressure concentration, and cooling to obtain a barium sulfide concentrate; S2. The barium sulfide concentrate is adjusted to alkalinity, and an antioxidant and a hydrolysis inhibitor are added thereto while stirring. The solution is filtered through a PVDF membrane to obtain a barium sulfide solution; S3. Under inert gas protection, carbon dioxide is introduced into the barium sulfide solution, followed by desulfurization and washing, vacuum filtration, drying and pulverization to obtain barium carbonate. The industrial-grade barium carbonate of the present invention has a purity of not less than 99.9%, a chloride ion content of not more than 8 ppm, a sulfide content of less than 50 ppm, a sulfate content of less than 0.03%, a sulfite content of less than 0.05%, and an iron ion content of less than 5 ppm.