Trend on the Recycling Technologies for Spent Electric Wire by the Patent and Paper Analysis

Ku, Jae-Kwan; Kim, Sang-Su; Lee, Yong-Ho; Kim, Byung-Geol; Cho, Young-Ju; Cho, Bong-Gyoo

doi:10.7844/kirr.2013.22.5.63

Journal of the Korean Institute of Resources Recycling

2013

DOI: 10.7844/kirr.2013.22.5.63

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Trend on the Recycling Technologies for Spent Electric Wire by the Patent and Paper Analysis

Jae-Kwan Ku¹,

Sang-Su Kim²,

Yong-Ho Lee³

et al.

Abstract: There are generated the hundreds of tons of waste electric wire per year due to replace for increase transmission capacity and/ or replacement of old electric wire by Korea's national power grid and/or private industrial factories. Recently, the wire recycling technologies studied extensively in terms of effieiency by of economic aspects and environment aspects. In this paper, the patents and papers for the recycling technologies of spent electric wire were collected and analyzed. The range of search was limit… Show more

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Cited by 3 publications

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Upcycling of Waste Jelly-Filled Communication Cables

Cho¹,

Lee²,

Hong³

et al. 2015

Journal of the Korean Institute of Resources Recycling

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A feasibility test was carried out for upcycling of waste jelly-filled communication cables together with the development of environmentally friendly processes and equipments. High pressure water injection is proved to be an exceptionally environmentally friendly and highly efficient mechanical process. A batch-type cable barking equipment is designed and built on the basis of computational fluid dynamics modelling. It is optimized in terms of energy consumption and productivity with very high copper recovery of 99.5%. Copper nano-powder is prepared by an electrical wire explosion in ethanol media in order to improve the value of final products, and the preliminary economical assessment is also conducted.

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Upcycling of Waste Jelly-Filled Communication Cables

Cho¹,

Lee²,

Hong³

et al. 2015

Journal of the Korean Institute of Resources Recycling

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Highly Efficient Mechanical Separation Process for the Recycling of Waste Jelly-Filled Communication Cables

Lee¹,

Uhm²,

Seo³

et al. 2016

Journal of the Korean Institute of Resources Recycling

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Highly efficient and environmentally friendly mechanical process was developed for the higher recovery rate and productivity in the recycling of waste jelly-filled communication cables. Only the simplest mechanical method was designed and built for a continuous process, further proved experimentally along with the addition of several parts such as brush-type rollers and scrappers. In this process, the recovery rate and productivity were 98% and 55 Kg/hr respectively. This process is thought to be simple but highly advanced method for the commercialization of green process.

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Aggregation of Thin Copper Wire by Ball Milling Treatment

Hwang

Cho

Seong

et al. 2020

J. of Korean Inst. of Resources Recycling

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Recycling processes of spent copper wires cosisnt of several steps of cutting and chopping processes for peeling covering materials followed by gravity separation processes, where copper is recovered. Because copper thin wires could be lost during further recycling processes, the wire may need to be further treated. In the present study, the copper thin wire was treated with ball milling to prevent the loss. Since the aggregation of the copper wire could be formed by bending and entangling the copper wire each other, the degree of flexion of the copper wire was measured after ball milling. When the 0.5 cm and 3 cm copper wires were used, the 0.5 cm copper wire was not bent and the 3 cm copper wires were aggregated regardless of the ball addition. When the 1 cm and 2 cm copper wires were used, the degree of flexion was remarkable when the balls were added. In the tests using 2 cm copper wires, the aggregation ratio of the copper wire gradually increased with the amount of the 20 mm alumina ball, and when 200 ml of 30 mm alumina ball was used, the aggregation ratio increased to 89.29 %, but after increasing the ball amount further, the aggregation ratio decreased. Thus, it is expected that the loss of the copper wire could be reducedif when the copper thin wire is treated with ball milling by the aggregation of copper thin wires.

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Trend on the Recycling Technologies for Spent Electric Wire by the Patent and Paper Analysis

Cited by 3 publications

References 3 publications

Upcycling of Waste Jelly-Filled Communication Cables

Upcycling of Waste Jelly-Filled Communication Cables

Highly Efficient Mechanical Separation Process for the Recycling of Waste Jelly-Filled Communication Cables

Aggregation of Thin Copper Wire by Ball Milling Treatment

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