Modeling of Synergistic Effect of Cyanex 302 and D2EHPA on Separation of Nickel and Cadmium from Sulfate Leach Liquors of Spent Ni—Cd Batteries

Vahidi, Ehsan; Babakhani, Ataollah; Rashchi, Fereshteh; Zakeri, Alireza

doi:10.1002/9781118679401.ch27

Cited by 1 publication

(2 citation statements)

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“…the solvent extraction of cadmium using D2EHPA as it is commonly used for extracting cadmium [39][40][41] and was evaluated in a pilot scale process for recycling CdTe module recycling.…”

Section: Solvent Extraction Of Cadmiummentioning

confidence: 99%

“…The energy and material requirements for solvent extraction of cadmium is determined from literature (Section 3 SI). [39][40][41][42][43][44] Similar to the ion-exchange process, there is no reported data on the purity of the Cd and Te recovered through solvent extraction. As a result, we assume the Cd and Te is subsequently purified in a downstream process operated by a third party.…”

Section: Solvent Extraction Of Cadmiummentioning

confidence: 99%

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Environmentally improved CdTe photovoltaic recycling through novel technologies and facility location strategies

Ravikumar

Seager

Sinha

et al. 2020

Progress in Photovoltaics

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Photovoltaic waste is projected to reach up to 78 million tons across globally dispersed locations through 2050. Current recycling infrastructure is inadequate to process these waste volumes responsibly. This necessitates commercializing novel, environmentally advantageous photovoltaic recycling technologies that improve upon incumbent industrial operations. CdTe photovoltaic recycling is a promising candidate for improvements as 25,000 tons of spent modules are recycled worldwide annually. This paper evaluates the operational performance and compares six novel technologies, the incumbent technology used in industry and one technology which extends the incumbent process across ten environmental impact categories. The tradeoff between incurring a transportation burden (ship or road) to recycle in a large-scale centralized facility with a higher operational efficiency and avoiding transportation by recycling in a smallscale decentralized facility with a lower operational efficiency is evaluated. Thermal delamination to eliminate the ethylene vinyl acetate and separate the photovoltaic glass panels is This article is protected by copyright. All rights reserved. This is the author manuscript accepted for publication and has undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1002/pip.3279 preferable to the incumbent mechanical process across nine environmental impact categories and decreases the climate-change impact of CdTe photovoltaic recycling by 23%. Bath and probe sonication are ineffective for delamination, and the use of organic solvents is more environmentally burdensome than the incumbent mechanical process. Centralized recycling with shipping is environmentally preferable than with road-based transportation. For every 100-km increase in road transportation from the decentralized to the centralized facility, the inventory requirement in the centralized facility should be 6% lower than the decentralized facility for centralized recycling to have a lower climate-change impact than decentralized recycling. The corresponding value for shipping is 0.4%.

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“…the solvent extraction of cadmium using D2EHPA as it is commonly used for extracting cadmium [39][40][41] and was evaluated in a pilot scale process for recycling CdTe module recycling.…”

Section: Solvent Extraction Of Cadmiummentioning

confidence: 99%