The invention discloses a method for producing sulfur-containing ammonium phosphates. The method comprises the steps that firstly, byproduct sulfur paste of synthesis ammonia, coking coal and other factories is added into a phosphoric acid storage tank on the basis of the calculated amount and conveyed to a reactor after being stirred to be uniform, and pelleting and drying …
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Recycling of spent lead‐acid batteries (LABs) is extremely urgent in view of environmental protection and resources reuse. The current challenge is to reduce high consumption of …
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A compatible environmental process consisted of hydrometallurgical desulfurization and vacuum thermal reduction to recycle lead was investigated in this research. Lead paste was firstly desulfurized with sodium carbonate, by which, the content of …
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the method of battery paste desulphurization consists in extracting lead(II) sulphate contained in the battery paste with a circulating aqueous solution of a polyamine, preferably...
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The optimal SLBP desulfurization condition (S/S = 2:1, L/S = 5:1, T = 90 °C, and t = 4 h) was maintained by adding fresh Na 2 MoO 4 and deionized water. Figure 3c shows the …
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The invention discloses a lead plaster desulfurization method for recycling waste lead-acid storage batteries, which comprises the steps of crushing waste batteries to obtain lead plaster placed in battery electrodes, and storing the lead plaster in a container with the effective volume of 2L; mixing the slurry with gypsum crystal and CaCl 2 Unreacted limestone, CaF 2 Mixing with …
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Pre-desulfurization technology is the key to the entire process. It uses a desulfurizer to convert high-melting point lead sulfate into low-melting point lead compounds, which effectively reduces SO 2 emissions and smelting energy consumption (Fu, 2007, Li, 2011).At present, desulfurizers used for lead paste pre-desulfurization include NaOH, Na 2 CO 3, NaHCO 3, NH …
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Get reliable Multifunctional Lead-Acid Storage Battery Pulse Desulfurization Comprehensive Testing & Repair Equipment from our factory. Quality guaranteed! ... Lead-acid battery repair method . Marine Lead-Acid Batteries: Rugged and Reliable SEP.03,2024 Healthcare Applications: Reliable Lead-Acid Batteries SEP.03,2024 Off-Grid Solutions: Lead ...
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The invention discloses a lead paste desulfurization method based on a grinding mechanism and belongs to the field of regeneration of waste lead-acid storage batteries. The method is a process of converting lead sulfate in lead paste slurry into sulfur-free lead sediment such as lead carbonate by virtue of a desulfurizing agent in a reactor having a grinding function, so that the …
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More patents, such as patents with application numbers 200710044751, 201010173380, and 200610031074, all utilize the difference in the solubility of ammonium thiosulfate and ammonium thiocyanate with temperature, and …
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2. according to right 1 described Waste lead acid storage battery lead paste desulfurization method, it is characterized in that described lead plaster main chemical compositions and content thereof are: PbSO 4 Be 55 ~ 70wt%, PbO 2 Be 24 ~ 35wt%, PbO …
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The invention discloses a method for desulfurizing the scrap lead paste of a lead-acid storage battery at a low temperature.
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The invention discloses a lead paste desulfurization method based on a grinding mechanism and belongs to the field of regeneration of waste lead-acid storage batteries.
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Provided are a method and apparatus for purifying a desulfurization lead plaster filtrate. The method comprises the steps of: adjusting a pH value of a filtrate, carrying out iron-carbon microelectrolysis to remove part of heavy metals, and carrying out decolorization and ion exchange to further remove high-valence cations. The apparatus comprises a filtrate storage …
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The invention provides an efficient production method of high-purity semi-water desulphurization paste, and relates to the technical field of building decoration materials. The high-efficiency production method of the high-purity semi-water desulfurization paste comprises the steps of taking desulfurization gypsum as a raw material, taking a dilute sulfuric acid solution with the …
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A lead-acid battery and lead paste technology, applied in the field of waste lead paste desulfurization, can solve the problems of increased sulfur content of lead paste, incomplete desulfurization reaction, hindering desulfurization reaction, etc. ... Lead plaster desulfurization method for recycling waste lead-acid storage battery.
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A compatible environmental process consisted of hydrometallurgical desulfurization and vacuum thermal reduction to recycle lead was investigated in this research. Lead paste …
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The invention provides a method, a system, equipment and a storage medium for evaluating the operation performance of desulfurization equipment, belonging to the technical field of prediction of the operation performance of process equipment in the power industry. The evaluation method comprises the following steps: acquiring actual operation data of the desulfurization …
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A self-collision, lead paste technology, applied in the field of lead paste desulfurization, can solve the problems of high sulfur content of materials, slow reaction of lead paste desulfurization, and different usage levels, and achieves stable operation and reduced sulfur content of lead paste., the effect of simple operation
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The invention relates to a method of desulphurizing battery paste in the process of recycling lead-acid batteries. The paste desulphurizing stage of the method according to the invention is carried out in an aqueous solution of a defined amine or of a mixture of polyamines, wherein the said solution is saturated with carbon dioxide to remove the remainder of calcium from the solution …
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The invention relates to a method and a device for two-stage mechanical reinforced desulfurization of waste lead paste. The invention also discloses a device special for the method, and the core components of the device are a primary desulfurization reactor, a secondary desulfurization reactor, a slurry circulation part and a product efficient collection part.
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The common desulfurization methods in industry include hydrodesulfurization (HDS) [1][2][3], ... Three different manure-handling/storage methods (a batch study, a semi-batch study, and a field ...
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A hydrothermal method was adopted to strengthen the desulfurization reaction of PbSO4 with the aim of addressing the problem of incomplete desulfurization and large reagent consumption in the ...
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The application provides a desulfurization optimization method, a desulfurization optimization device, electronic equipment and a storage medium, which are used for solving the problem that the effect of desulfurization optimization on flue gas is not ideal. The method comprises the following steps: acquiring various time sequence data generated by desulfurization equipment …
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The desulfurization effects of Na 2 CO 3 and NH 4 HCO 3 on lead paste have been investigated. ... energy storage systems are required for grid storage so as to balance the energy input and output [9,10]. ... Ultra-Fast Recyclable and Value-Added Desulfation Method for Spent Lead Paste via Dual Intensification Processes. 2023, Advanced Science ...
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The invention discloses a treatment method of desulfurization solid waste, which comprises the following steps: step a, mixing sulfur paste or sulfur mud with mixed double salt to obtain a sulfur salt mixture; step b, adding a sulfur-containing agent into the sulfur salt mixture obtained in the step a, adding water, and uniformly stirring to obtain sulfur salt mixed slurry; c, drying the …
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The invention provides a sodium-calcium dual-alkali flue gas desulfurization method and system. The method comprises the steps of flue gas desulfurization and sodium-based desulfurizer regeneration; in the flue gas desulfurization step, a sodium hydroxide solution is adopted as a desulfurization starting agent, the prepared sodium hydroxide solution is directly put into a …
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Regenerative FGD method is advantageous over other methods due to high desulfurization efficiency, sorbent regenerability, and reduction in waste handling. The capital costs of regenerative ...
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AIP Conference Proceedings. Due to the most recent environmental requirements, wide desulfurization has become an increasingly important way to obtain ultra-clean fuels for transportation of less than 15 ppmw of sulfur, such as diesel, gasoline, and jet fuel. as a result of the strict requirements for transportation fuels.
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The traditional sodium desulfurization process for waste lead-acid batteries is beneficial to the environment; however, it is limited by poor economic viability as the cost of desulfurizer is much higher than the value of desulfurization by-products. This study proposes a new closed-loop pre-desulfurization process for lead paste, which consumes only lime as the …
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