Usually, spent lead-acid batteries are separated in lead recycling plants by dismantling and sorting into four fractions: lead paste, metallic fragments, waste acid, and plastic case ( Worrell and Reuter, 2014; Zhang et al., 2019 ). The processing of lead paste is relatively complex because it contains refractory lead sulphate.
The lead in paste was recovered via hydrometallurgical leaching and electrowinning in chloride solution. The leaching ratio of lead was >99% under optimum conditions: temperature of 90 °C, CaCl 2 concentration of 400 g/L, Fe 2+ concentration of 5 g/L, pH 1.0, and leaching time of 2 h.
The lead in the raw material was recovered via a direct leaching–electrowinning process in calcium chloride solution. Different from the traditional hydrometallurgical processes used to treat the lead paste, this new process does not require the desulphurisation step.
Lead paste was recovered via leaching and electrowinning in chloride solution. The leaching of lead was over 99% and the current efficiency was 96.3%. The energy consumption of the electrowinning was only 85.9 kWh/t Pb. The spent electrolyte was recyclable and the chlorine evolution was avoided.
Recycling spent lead-acid batteries has always been a research hotspot. Although traditional pyrometallurgical smelting is still the dominant process, it has serious environmental drawbacks, such as the emission of lead dust and SO 2, and high energy consumption. This study presents a clean process for recycling spent lead-acid battery paste.
A green lead hydrometallurgical process based on a hydrogen-lead oxide fuel cell. Nat. Commun. 4:2178 doi: 10.1038/ncomms3178 (2013). Roberts, H. Changing patterns in global lead supply and demand. J. Power Sources 116, 23–31 (2003).
This study presents a clean process for recycling spent lead-acid battery paste. The lead in paste was recovered via hydrometallurgical leaching and electrowinning in chloride …
Ultrafine leady oxide could be prepared from spent lead pastes via newly developed novel hydrometallurgical routes, and then applied as active materials in the cathode …
Recycling lead from spent lead-acid batteries has been demonstrated to be of paramount significance for both economic expansion and environmental preservation. …
Here we demonstrate a new green hydrometallurgical process to recover lead based on a hydrogen-lead oxide fuel cell. High-purity lead, along with electricity, is produced with only...
DOI: 10.1016/j.jhazmat.2009.07.026 Corpus ID: 38351993; Qualitative lead extraction from recycled lead-acid batteries slag. @article{Smaniotto2009QualitativeLE, …
Furthermore, an experimental batch of about 1000 starter batteries (see figure 2) has been produced with the hydro-metallurgical Lead Oxide Regeneration technology proposed by STC. …
In terms of environmental friendliness, economic applicability and lead recovery efficiency, the hydrometallurgical extraction of metallic lead from lead paste, based on the …
The proposed process is an attractive solution to extracting Pb from spent lead-acid battery paste. The lead in the raw material was recovered via a direct …
Pre-desulfurization-free combined electrolysis provides a new approach for the clean hydrometallurgical extraction of waste lead paste. ... clean process of recycling lead-acid …
A compatible environmental process consisted of hydrometallurgical desulfurization and vacuum thermal reduction to recycle lead was investigated in this …
Lead acid batteries are processed mainly by using pyrometallurgical operations with problems related to SO2 evolution. Many efforts have been devoted to solving this …
In this study, a green recycling process of discarded lead-acid battery paste, which could avoid both the smelting and electro-winning route has been developed. Leaching reagents …
The current situation and development of lead acid battery is summarized, the generation process of spent lead acid battery and the recovery technology widely adpoted for …
various products, such as lead-acid batteries, radioactive protective clothing, paints, and pig-ments.1 Among various applications of lead, lead-acid batteries (LABs) are the most …
Furthermore, an experimental batch of about 1000 starter batteries (see figure 2) has been produced with the hydro-metallurgical Lead Oxide Regeneration technology proposed by STC. …
KEYWORDS: Biomining, Extraction technology, Hydrometallurgy, Membrane electrolysis, Resource recovery Extraction of lead is driven by the use of the element for safe, long-life, and …
Here we demonstrate a new green hydrometallurgical process to recover lead based on a hydrogen-lead oxide fuel cell. High-purity lead, along with electricity, is produced …
Green hydrometallurgical extraction of metallic lead from spent lead paste in the methanesulfonic acid system. 2023, Separation and Purification Technology. Show abstract. …
In terms of environmental friendliness, economic applicability and lead recovery efficiency, the hydrometallurgical extraction of metallic lead from lead paste, based on the …
A new green hydrometallurgical process to recover lead based on a hydrogen-lead oxide fuel cell is demonstrated, which has a >99.5% lead yield, which greatly reduces lead pollution to the …
The invention relates to a hydrometallurgical process for the overall recovery of the components of exhausted lead-acid batteries, in a re-useable form, said components being mainly …
Ultrafine leady oxide could be prepared from spent lead pastes via newly developed novel hydrometallurgical routes, and then applied as active materials in the cathode …
Spent lead paste is the main component in lead-acid batteries reaching end of life. It contains about 55% lead sulphate and 35% lead dioxide, as well as minor amounts of …
This study presents a clean process for recycling spent lead-acid battery paste. The lead in paste was recovered via hydrometallurgical leaching and electrowinning in chloride solution. The …