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Purification of waste sulfuric acid from lead-acid batteries

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

Extraction of Lignosulfonate from Jute Sticks and its Application in

Kurzweil P (2010) Gaston Planté and his invention of the lead–acid battery—the genesis of the first practical rechargeable battery. J Power Sour 195:4424–4434. Article Google Scholar Tian X, Wu Y, Gong Y, Zuo T (2015) The lead-acid battery industry in China: outlook for production and recycling. Waste Manage Res 33:986–994

(PDF) Sustainable Treatment for Sulfate and Lead

In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed using the

An Emission-Free Vacuum Chlorinating Process for

This study developed a vacuum chlorinating process for simultaneous sulfur fixation and high-purity lead chloride (PbCl 2) recovery from spent lead paste by using calcium chloride (CaCl 2) and silicon dioxide (SiO 2)

Sustainable Treatment for Sulfate and Lead Removal from Battery

Abstract: In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed

Progress in Waste Lead Paste Recycling Technology from Spent Lead–Acid

Pre-desulfurization-free combined electrolysis provides a new approach for the clean hydrometallurgical extraction of waste lead paste. Lead is an important nonferrous metal that has good ductility and corrosion resistance. It is widely utilized in many industries, such as LABs, cable sheaths, machine manufacturing, ships, and military projects.

[PDF] Recycling of Spent Lead-Acid Battery for Lead Extraction

This study proposed a cleaner pyrometallurgical lead-acid battery (LAB) recycling method for lead extraction and sulfur conservation without an excessive amount of SO2 generation. A reducing atmosphere was introduced to the lead paste recycling system to selectively reduce PbSO4 to PbS.

Life Cycle Assessment of Spent Sulfuric Acid from Lead-acid

Index Terms—Lead-acid battery, sulfuric acid, material flow analysis, life cycle assessment. I. INTRODUCTION. During 2015 - 2017, Industrial Waste Management Division, Department of Industrial

Process for the recovery of sulphur from lead-acid battery scrap

Spent lead-acid batteries contain a substantial amount of sulfur in the form of H2SO from the electrolyte and even more as PbSO4 in the active material as the product of the battery...

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

Review on clean recovery of discarded/spent lead-acid battery and

Two technological challenges in hydrometallurgical recovery process for spent lead-acid battery are recognized as: removal of impurity elements (such as Fe and Ba) and

The Role of PbO2 in the Metal Lead Recovery from Lead Paste Via

The suspension electrolysis system using sulfuric acid as the electrolyte (SE II system) provides a zero-emission strategy to recover high-purity lead from lead paste. It realized one-step lead recovery without desulfurization pre-treatment process. The dilemma of SE II system for lead past recovery is the difficulty of its main component poor conductive PbSO4

Technical guidelines for the environmentally sound management of waste

However, considering that a normal battery also contains sulfuric acid and several kinds of plastics, the recycling process may be a potentially dangerous process if not properly controlled. These technical guidelines are, therefore, meant to provide guidance to countries which are planning to improve their capacity in order to manage the used lead-acid battery wastes. A

Review on clean recovery of discarded/spent lead-acid battery

Two technological challenges in hydrometallurgical recovery process for spent lead-acid battery are recognized as: removal of impurity elements (such as Fe and Ba) and loop reuse for reducing dosage of leaching reagents.

Pollution-free recycling of lead and sulfur from spent lead-acid

Vacuum roasting for spent lead-acid batteries recycling reduces carbon emissions. Lead paste is converted into PbO in a vacuum environment of 500 °C. Lead and sulfur are pollution-freely recovered.

Recovery of excess sulfuric acid in the lithium-ion batteries

The hydro-metallurgical processing of spent lithium-ion batteries (LIB) aims at the extraction and separation of value materials from the black mass, a recycling fraction consisting of both the cathode and anode active material [1], [2] pending on the battery technology the value materials are present in different quantities.

Sustainable Treatment for Sulfate and Lead Removal from Battery

Abstract: In this study, we present a low-cost and simple method to treat spent lead–acid battery wastewater using quicklime and slaked lime. The sulfate and lead were successfully removed using the precipitation method. The structure of quicklime, slaked lime, and resultant residues were measured by X-ray di raction.

Technical guidelines for the environmentally sound management

In most countries, nowadays, used lead-acid batteries are returned for lead recycling. However, considering that a normal battery also contains sulfuric acid and several kinds of plastics, the

Progress in Waste Lead Paste Recycling Technology from Spent

Pre-desulfurization-free combined electrolysis provides a new approach for the clean hydrometallurgical extraction of waste lead paste. Lead is an important nonferrous metal

Progress in Waste Lead Paste Recycling Technology from Spent Lead–Acid

The waste sulfuric acid electrolyte can be recycled after purification or neutralization, lead and lead alloy grids can be recycled by a short process, and organic matter (such as polypropylene plastic) can be recycled to produce battery shells . Waste lead paste is a brown slurry that is formed after the charge–discharge process of electrode materials (e.g.,

Purification of waste sulfuric acid from lead-acid batteries [PDF]

6 FAQs about [Purification of waste sulfuric acid from lead-acid batteries]

How are lead-acid batteries recycled?

Most small lead-recycling enterprises adopt the mixed smelting of spent LABs on the alloy grid plate and waste lead paste reverberatory furnaces before preprocessing, resulting in the underutilization of alloy components . America, which has a slightly lower lead–acid battery output than China, has only six recycling enterprises.

How is lead oxidized in a battery?

For battery manufacturing, the lead ingot (metallic lead) is then oxidized by ball-milling or by atomizing molten lead in a stream of air. The product is typically a mixture of lead oxide and metallic lead which is known as leady oxide which is used as the precursor material for making anode and cathode paste in battery production.

How to recover a spent lead-acid battery?

Organic acid leaching followed by calcination process shows a facile and mild route in recovery of spent lead-acid battery with low-emission of hazardous gases, which are the most studied processes for the recovery of spent lead paste.

Which reagent is used to desulfurize lead sulfate?

Thus, desulfurization of lead sulfate into other lead compounds which can easily react with acid is a common pretreatment process for the spent lead paste . Carbonate and alkali are the most commonly used reagents for desulfurization of the spent lead paste.

How pyrometallurgical process is used in battery production?

In the pyrometallurgical process for the recovery of spent lead paste, lead ingot is the recovered product. For the battery production, the lead ingot should be transported, melted, oxidized by Ball-mill or Baton pot method to produce leady oxide, which is a mixture of PbO and metallic lead.

Why do we need a surface update for lead-acid batteries?

Adopt the surface update strengthens the alkali-making reaction. 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.

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