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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CN115357057A

The invention discloses a method, a system, equipment and a storage medium for controlling the discharge amount of desulfurization wastewater, wherein the method comprises the following steps: determining the first desulfurization wastewater discharge P1 of a limestone-gypsum wet desulfurization system based on the balance of chloride ions in the desulfurization slurry; …

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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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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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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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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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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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CN112110423A

The invention provides a system and a method for preparing acid from desulfurization waste liquid, and relates to the field of acid preparation. The system comprises a pretreatment unit, a concentration unit, a pulping unit, an incineration unit, a purification unit and a dry absorption conversion unit, wherein a dilute sulfuric acid outlet in the purification unit is connected with a …

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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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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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Method of Desulfurization Process Selection Based on Improved …

With the increasingly prominent global energy and environmental problems, more and more enterprises have been required to desulfurize the exhausted gases. Different enterprises have different demands for the desulfurization process, thus the choice of desulfurization process methods has become a focus of attention. Since the evaluation of the …

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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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CN104263944A

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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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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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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CN104651616A

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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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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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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Lead paste desulfurization method based on grinding mechanism

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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Method for desulfurizing waste lead-acid battery diachylon

The invention belongs to the recovery and utilization technology field of waste lead acid battery lead cream, be specifically related to a kind of Waste lead acid storage battery lead paste...

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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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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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Progress in Waste Lead Paste Recycling Technology from Spent …

However, efficient methods for the development of clean and economical conversion reagents, the economic treatment of wastewater, and the disposal of the resulting byproducts are urgently needed. Pre-desulfurization-free combined electrolysis provides a new approach for the clean hydrometallurgical extraction of waste lead paste.

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Analysis of a more sustainable method for recycling waste lead

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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CN112216351A

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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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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CN114870425A

The invention relates to a desublimation purification system for desulfurization sulfur paste and an operation method thereof.A cooling gas source is connected with a gas inlet pipe orifice of an electric hot blast stove through an air inlet pipeline of an air furnace and a centrifugal fan, an outlet of the electric hot blast stove is connected with a solid-gas separator through the air inlet ...

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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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CN117402088A

Compared with the existing sulfur melting method for producing sulfur, the method greatly improves the value of the sulfur paste, prepares high-value taurine products widely applied to industries such as medicines, food processing, feeds and the like, and simultaneously produces ammonium chloride as a byproduct, thereby realizing the recycling ...

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