"Development of key materials recycling and pollution control te
「"Development of key materials recycling and pollution control te」於資料集「EPQSummary_WasteManagement」由單位「行政院環境保護署」的郭先生所提供，聯繫電話是02-2311-7722 EXT.2399，最近更新時間為：2022-01-15 01:13:53。 欄位Project Title的內容是"Development of key materials recycling and pollution control technologies for waste Lithium-Cobalt battery" ， 欄位Project Subject的內容是"This research cooperated with UWin Nanotech Co., Ltd. to recover, separate and purify lithium and cobalt metals in waste lithium-cobalt batteries. The use of nitric acid with impregnant can effectively improve the extraction efficiency of metals. In the process, nitric acid waste liquid treated by vacuum distillation to recover the waste acid before discharge, and the crystals after distillation will be dissolved in water for the electrochemical module for separation and purification. The goal of this research is to establish a waste lithium cobalt battery recycling process, including the development of impregnant and electrochemical separation technology, the recovery of nitric acid in the impregnation waste liquid by vacuum distillation, and the establishment of a systematic functional assessment of its environment, economy and engineering.
The results of the study found that in the 50 g waste lithium cobalt battery powder immersion test, it was found that nitric acid has a higher extraction efficiency, and 175 ml of 68% nitric acid was used with 75 ml of UW-530 impregnant, at a temperature of 80 oC, solid-liquid ratio of 1:5, it has a high extraction efficiency of 99.1% cobalt and 99.5% lithium, and for a 1 kg test with a larger volume, 99.93% and 99.85% of lithium and cobalt can be extracted under the same conditions. In addition, the waste liquid after metals stripping was treated by vacuum distillation. After vacuum distillation, the amount of waste liquid can be reduced by 93.5%, For the separation of electrochemical module, the batch experiment is carried out with a solution containing 1 g/L Cobalt with 0.5 g/L lithium, and the applied voltage is 16 volts. Within 70 minutes, a separation efficiency of 99.9% for lithium ion and 98.6% for cobalt ion can be achieved. The energy consumption is 0.019 kWh/g cobalt and 0.011 kWh/g lithium with productivity 17.4 g/hr/m2 and 30.8 g/hr/m2. For real sample, the proportion of lithium can be purified from 4.40% to 29.25% in base recovery cell, and the proportion of cobalt is 53.45% purity in acid recovery cell. The energy consumption of cobalt and lithium are 0.020 kWh/g and 0.098 kWh/g." ， 欄位Project Year的內容是2021 ， 欄位Organizer的內容是"Recycling Fund Management Board" ， 欄位Executive Unit的內容是"國立臺灣大學" ， 欄位Reporting download URL的內容是https://epq.epa.gov.tw/project/filedownload.aspx?fid=261780 ， 欄位Publish Date的內容是20220201 。
Project Title
"Development of key materials recycling and pollution control technologies for waste Lithium-Cobalt battery"
Project Subject
"This research cooperated with UWin Nanotech Co., Ltd. to recover, separate and purify lithium and cobalt metals in waste lithium-cobalt batteries. The use of nitric acid with impregnant can effectively improve the extraction efficiency of metals. In the process, nitric acid waste liquid treated by vacuum distillation to recover the waste acid before discharge, and the crystals after distillation will be dissolved in water for the electrochemical module for separation and purification. The goal of this research is to establish a waste lithium cobalt battery recycling process, including the development of impregnant and electrochemical separation technology, the recovery of nitric acid in the impregnation waste liquid by vacuum distillation, and the establishment of a systematic functional assessment of its environment, economy and engineering. The results of the study found that in the 50 g waste lithium cobalt battery powder immersion test, it was found that nitric acid has a higher extraction efficiency, and 175 ml of 68% nitric acid was used with 75 ml of UW-530 impregnant, at a temperature of 80 oC, solid-liquid ratio of 1:5, it has a high extraction efficiency of 99.1% cobalt and 99.5% lithium, and for a 1 kg test with a larger volume, 99.93% and 99.85% of lithium and cobalt can be extracted under the same conditions. In addition, the waste liquid after metals stripping was treated by vacuum distillation. After vacuum distillation, the amount of waste liquid can be reduced by 93.5%, For the separation of electrochemical module, the batch experiment is carried out with a solution containing 1 g/L Cobalt with 0.5 g/L lithium, and the applied voltage is 16 volts. Within 70 minutes, a separation efficiency of 99.9% for lithium ion and 98.6% for cobalt ion can be achieved. The energy consumption is 0.019 kWh/g cobalt and 0.011 kWh/g lithium with productivity 17.4 g/hr/m2 and 30.8 g/hr/m2. For real sample, the proportion of lithium can be purified from 4.40% to 29.25% in base recovery cell, and the proportion of cobalt is 53.45% purity in acid recovery cell. The energy consumption of cobalt and lithium are 0.020 kWh/g and 0.098 kWh/g."
Project Year
2021
Organizer
"Recycling Fund Management Board"
Executive Unit
"國立臺灣大學"
Reporting download URL
Publish Date
20220201
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