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CN113357652A
The invention discloses a method for treating desulfurization waste liquid and sulfur , and relates to the technical field of waste liquid treatment. ... and directly spraying into fluidized bed furnace for combustion with sulfur paste. The desulfurization waste liquid and the sulfur are heated at high temperatureTotal decomposition ...
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CN117213887A
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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CN113398953A
The invention discloses a plasma-assisted catalyst desulfurization and storage bit thermal regeneration method and application, and belongs to the technical field of nitrogen oxide control in environmental protection. Putting the sulfur poisoning catalyst into a non-thermal equilibrium plasma catalytic reactor, introducing mixed gas containing reducing gas into the reactor, and …
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Sodium-calcium dual-alkali flue gas desulfurization method and …
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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CN103000968A
The invention discloses a lead plaster desulfurization transforming method for waste lead-acid storage batteries, which belongs to the field of waste battery disposal. The method comprises the following steps: (1) the preparation of a lead plaster original sample: carrying out decomposition on waste lead-acid storage batteries, taking out a grid alloy, taking out lead plaster from a grid ...
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System and method for integrated roasting and smelting of waste …
A waste lead battery and desulfurization lead paste technology, applied in the field of recycled lead, can solve the problems of unfavorable reduction reaction, unfavorable efficient utilization of heat energy, and influence on the local temperature of the molten liquid, etc., so as to reduce refining energy consumption, high heat energy utilization, The effect of simplifying the refining …
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CN105950870A
The invention discloses a hydrothermal deep conversion desulfurization method for waste lead plaster of a lead-acid storage battery. The method includes the steps that the waste lead plaster and aqueous alkali are mixed and then added into a high pressure reactor, and reacting is carried out under the required temperature and nitrogen partial pressure, so that lead sulfate is …
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Sulfur from biogas desulfurization: Fate of S during storage in …
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 method for desulfurization of lead paste based on throttling self
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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A new desulfation process of spent lead paste via cyclic utilization …
The new strategy provides a new method for separating gypsum from the desulfurized lead paste to obtain high-purity gypsum, realizing the desulfation process with …
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Hydrothermal desulfurization of spent lead paste based on
A hydrothermal method was adopted to strengthen the desulfurization reaction of PbSO 4 with the aim of addressing the problem of incomplete desulfurization and large reagent consumption in the pretreatment process of spent lead paste. Mineral liberation analysis showed that lead sulfate disseminates in lead oxide and they become mixed with each other, which is …
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Efficient Desulfurizer Recycling during Spent Lead–Acid Batteries …
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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Method for desulphurization of battery paste
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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Treatment method of desulfurization solid waste
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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Recovery of lead from lead paste in spent lead acid battery by
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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Recovery of Lead from Spent Lead Paste by Pre …
The treatment of spent lead paste is essential for the recycling of spent lead-acid batteries. In this study, we propose a facile route for the recovery of lead from spent lead paste by pre-desulfurization followed by low-temperature reduction smelting. The effects of two desulfurization methods, i.e., high-
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Lead-acid battery desulfurization and repair equipment
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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System and method for waste lead storage battery desulfurization …
A waste lead battery and desulfurization lead paste technology, applied in the field of recycled lead, can solve the problems of unfavorable reduction reaction, unfavorable efficient utilization of heat energy, and influence on the local temperature of the molten liquid, etc., so as to reduce refining energy consumption, high heat energy utilization, The effect of simplifying the refining …
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Recycling lead from waste lead-acid batteries by the combination …
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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CN110282606B
The invention discloses a wet treatment system and a wet treatment process for aqueous sulfur paste and desulfurization waste liquid. The wet processing system of the present invention comprises: a sulfur melting device, a combustion device, a purifying device, a denitration reactor, a combined reactor, a sulfuric acid steam condenser, a sulfuric acid mixing tank and a tail gas …
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WO2016029613A1
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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Hydrothermal desulfurization of spent lead paste based on
The results show that the hydrothermal method has the advantages of a high desulfurization efficiency, low reagent consumption, and a simple process, and it provides a …
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Analysis of a more sustainable method for recycling waste lead
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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CN114317947A
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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Lead plaster desulfurization transforming method for waste lead …
A waste lead-acid battery, desulfurization conversion technology, applied in battery recycling, waste collector recycling, recycling technology and other directions, can solve the problems of polluting lead paste pyro-smelting cost, low recycling rate, etc., and reduce SO2 emissions., the effect of improving the recovery rate of lead metal and reducing energy consumption
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CN106316510A
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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Recovery of Lead from Spent Lead Paste by Pre-desulfurization …
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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Recovery of lead from lead paste in spent lead acid battery by
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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Method for extracting sulfur and inorganic salt from …
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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CN112850773A
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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