10 results about "Rubidium nitrate" patented technology

The present invention relates to a water-resistant, sulfur-resistant, and poison-resistant ultra-low temperature denitration catalyst and a preparation method thereof, and belongs to the technical field of flue gas denitration catalysts. The mixture of copper nitrate, nickel nitrate, and chromium nitrate in the catalyst synergizes with rubidium nitrate, and after mixing, extrusion, and roasting, a highly active catalytic center is formed, which can effectively promote NO at low temperatures. x The reduction reaction improves the low-temperature activity of the catalyst; the ZSM‑5 molecular sieve and titanium dioxide in the catalyst carrier have excellent selectivity and hydrophobicity, which can effectively prevent SO2, SO3, water molecules, etc. from occupying and destroying the active sites of the catalyst. The addition of silane coupling agent KH550 further enhances the sulfur and water resistance of the carrier, so that the catalyst can still maintain a high catalytic activity in a sulfur-containing and water-containing flue gas environment; the auxiliary agent ammonium heptamolybdate in the catalyst helps to improve the catalyst's anti-poisoning ability.

The application discloses an energetic metal complex and a synthesis method thereof, and the method is characterized by the molar ratio of 3-aminomethyl-4,5-diamino-1,2,4-triazole, rubidium nitrate and nitric acid being 1:1:1-6, after the feeding is completed, the reaction system is heated to 25-100 DEG C to react, and the reaction time is 0.5-4 hours. After the reaction is completed, the reaction system is cooled to room temperature, filtered, washed and dried to obtain the energetic metal complex [TATT][Rb](NO3)3. The triazol ring with high nitrogen content is selected as a basic skeleton, and the metal complex is obtained by further reacting with the rubidium nitrate and the nitric acid, the single crystal density of the metal complex at normal temperature reaches 2.078 g / cm 3 , the thermal stability reaches 230 DEG C, the electronic density is as high as 4.6419*10 21 / m 3 , the electronic temperature reaches 0.58683 eV, and the metal complex has a great application prospect in the direction of plasma explosives.

The invention relates to a preparation method of a high-strength heat-resistant aluminum alloy wire, and belongs to the technical field of alloy preparation. Cerium nitrate and rubidium nitrate are mixed, ground and dispersed in a graphene oxide solution, then a silane coupling agent is added for treatment, then the rare earth metal modification additive is prepared, rare earth elements in the rare earth metal modification additive can refine crystal grains of the aluminum alloy, and therefore the mechanical property and heat resistance of the aluminum alloy are improved; the refining agent is formed by mixing sodium metaaluminate, sodium fluosilicate and aluminum silicate according to the mass ratio of 1: 1: 1, the refining agent can chemically react with gas and impurities in the aluminum alloy at the high temperature, gas compounds and precipitates are generated, and non-metallic inclusions and tiny metal particles are removed through slagging-off treatment. Meanwhile, the refining agent can refine grains of the aluminum alloy and improve the mechanical property and the processability of the aluminum alloy, so that the electric conductivity and the heat resistance of the aluminum alloy wire are improved.

The present invention belongs to the field of catalyst technology and provides a vanadium-based catalyst, a preparation method thereof, and its application in the preparation of homogenized anhydrides. The method comprises the following steps: mixing vanadium pentoxide, phosphoric acid, rubidium nitrate, oxalic acid, and water to obtain an active component slurry A; mixing titanyl sulfate, lanthanum nitrate, rubidium nitrate, ammonia water, and water, and calcining to obtain a composite oxide; mixing ammonium metavanadate, ammonium heptamolybdate, the composite oxide, oxalic acid, and water to obtain an active component slurry B; spraying the active component slurries A and B onto a support in sequence and calcining to obtain a vanadium-based catalyst. By selecting specific types and contents of active components, arranging the active components in a double layer, and preparing the composite oxide as a support within the outer layer of the active components, the activity and stability of the catalyst are improved, thereby increasing the yield of homogenized anhydrides. When the vanadium-based catalyst prepared by the present invention is applied to the preparation of homogenized anhydrides, the homogenized anhydride yield reaches as high as 112.7 wt%.

This invention discloses a separation process for a mixed salt containing rubidium nitrate and sodium nitrate. Based on the ternary system (RbNO3-NaNO3-H2O) phase diagram, the process achieves the separation of rubidium nitrate and sodium nitrate by utilizing the salt precipitation pattern during heating and cooling. The two circulating mother liquors (E2 and E3, or E1 and E3) can be recycled in the production process, resulting in no wastewater or waste residue discharge. The rubidium nitrate and sodium nitrate obtained by this method have high purity, and the process is simple to operate, environmentally friendly, stable, and reliable, making it suitable for industrial production.

The invention provides an electrolyte functional additive, an electrolyte and a lithium metal battery. The functional additive comprises rubidium nitrate and / or lithium nitrate. The lithium metal battery non-aqueous electrolyte comprises a lithium salt, a non-aqueous organic solvent and a functional additive. Rubidium nitrate (RbNO3) and lithium nitrate (LiNO3) are used as electrolyte dual additives, NO3 <-> is used as a film-forming additive to participate in formation and decomposition of an SEI film to form an SEI film component with high ionic conductivity, and the ionic conductivity of the SEI film is improved; and Rb + provides an electrostatic shielding effect, is not consumed in the circulation process, can continuously play a role in long-term circulation, and promotes uniform lithium deposition. Rubidium nitrate (RbNO3) and lithium nitrate (LiNO3) cooperate with each other, so that the coulombic efficiency is improved while lithium dendrites are inhibited, and dual targets of dendrite-free morphology and high coulombic efficiency of the lithium metal battery are achieved.

The invention discloses an SCR (Selective Catalytic Reduction) modified honeycomb catalyst for synergistically removing mercury and nitrate at low temperature and a preparation method of the SCR modified honeycomb catalyst, and belongs to the technical field of catalysts. According to the technical scheme, the modified honeycomb catalyst comprises a porous honeycomb carrier and an active component impregnation liquid, the porous honeycomb carrier is prepared from the following raw materials: amphoteric oxide, rubidium nitrate, polyethylene glycol, sodium carboxymethyl cellulose, triethanolamine, silicon dioxide, aluminum oxide, calcium oxide, quartz fiber, soybean oil and water; the active component impregnation liquid is prepared from the following raw materials in parts by weight: ammonium metavanadate, ammonium metatungstate, ammonium molybdate tetrahydrate, oxalic acid, manganous nitrate, cerous nitrate, palladium nitrate, platinum nitrate, alkylphenol ethoxylates and water. The low-temperature denitration demercuration catalyst has efficient denitration and demercuration synergic performance under the low-temperature condition.

The invention discloses an electrolyte for preparing metal rubidium through low-temperature electrodeposition and a preparation method of the metal rubidium, and belongs to the technical field of preparation of alkali metal rubidium. The electrolyte is composed of an aprotic strong polar solvent triethyl phosphate and anhydrous rubidium chloride or anhydrous rubidium nitrate, and the molar concentration of rubidium chloride or rubidium nitrate in the electrolyte is 0.1-1.5 mol / L; the preparation method comprises the following steps: adding electrolyte into an electrolytic bath, setting an anode as a high-purity graphite plate, setting a cathode as a high-purity tin plate or a high-purity copper plate or a high-purity aluminum plate, setting constant-potential electrolytic voltage as-3 to-4.5 V vs Ag, electrifying and electrolyzing at-10 to 25 DEG C for at least 45 minutes, depositing metal rubidium on the cathode plate, and sealing the deposited metal rubidium with argon or packaging the deposited metal rubidium with paraffin oil. According to the method, the metal rubidium can be prepared through electro-deposition at the low temperature by means of an electrolyte system composed of rubidium chloride or rubidium nitrate and triethyl phosphate, the technological process is simple and short, energy consumption is low, the product purity is high, and the purity of the metal rubidium is 99.9% or above.

The invention discloses a catalytic synthesis method of trifluoroiodomethane, which comprises the following steps: introducing gaseous CF3H, I2 and O2 into a reaction container according to a feeding ratio of CF3H: I2: O2 of 3: 1: 0.4, and reacting by taking rubidium nitrate loaded activated carbon as a catalyst; adjusting the addition amount of oxygen according to the conversion rate of CF3H; when the conversion rate of the CF3H is lower than 30%, the introduction of the CF3H, the I2 and the O2 is stopped. According to the catalytic synthesis method of trifluoroiodomethane, generation of carbon deposition is reduced by adjusting the introduction amount of oxygen, meanwhile, excessive ablation of the activated carbon carrier is avoided, and the service life of the catalyst is prolonged.

This invention provides a stepwise extraction process for potassium-rich multi-component brine. The extraction sequence is as follows: negative pressure desulfurization of brine to produce sodium sulfide; brine alkali adjustment system; adsorption method for strontium extraction to produce strontium carbonate; adsorption method for boron extraction to produce boric acid; lime method reaction to produce magnesium hydroxide and calcium sulfate; stage I evaporation and crystallization to produce sodium chloride; soda ash method to produce calcium carbonate; brine acidification system; adsorption for lithium extraction to produce lithium carbonate; oxidation and blowing of iodine and bromine to produce iodine and bromine; adsorption for cesium extraction to produce cesium nitrate; adsorption for rubidium extraction to produce rubidium nitrate; stage II evaporation and concentration to produce sodium chloride and potassium chloride. The process route of this invention is clear and well-defined, with relaxed production conditions, avoiding interference between elements. It also produces high-quality products, high element yields, low production costs, simple operation, and low labor intensity. The extraction process achieves closed-loop circulation, resulting in zero emissions of waste gas, wastewater, and solid waste, thus achieving green and environmentally friendly production.