廢鉛酸電池回收率提昇冶煉技術開發計畫(2年之第2年)
| 中文摘要 | 鉛酸電池為目前全球用量最大的二次電池，廢鉛酸電池數量亦逐年增加，電池回收已然成為產業與環保上重要議題，鉛酸電池中的含鉛物料佔鉛酸電池比重超過七成，國內回收率仍然低於國際領先技術，低回收率亦使得冶煉過程中產生的鉛渣含鉛量過高，鉛渣數量過多等環境問題。 冶煉溫度偏低是造成目前回收率偏低的主要原因之一，提升冶煉溫度的前提則需有合適的耐火材料，以避免高溫使得耐火材料快速耗損甚至參與熔渣反應。本計畫針對鉛冶煉用耐火材料進行分析與開發，經由物性，化性，機性等分析建立材料使用特性，並且導入鉛冶煉爐體，得以在冶煉溫度提昇上提供足夠防護與增加使用壽命，冶煉溫度的提昇使得原料鉛的平均回收效率亦由大約65.6%提昇至68%-70%之間，鉛渣中的含鉛量則降低60%-90%之間不等，批次冶煉之鉛渣比例則降低19%-30%之間不等，回收率提升以及鉛渣減量對於鉛回收冶煉而言，無論就經濟面與環境保護面而言均具有顯著效益。 | ||
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| 中文關鍵字 | 鉛、鉛酸電池、回收、鉛渣 | ||
基本資訊
| 專案計畫編號 | EPA-106-XA05 | 經費年度 | 106 | 計畫經費 | 3500 千元 |
|---|---|---|---|---|---|
| 專案開始日期 | 2017/01/01 | 專案結束日期 | 2017/11/30 | 專案主持人 | 蕭達慶 |
| 主辦單位 | 回收基管會 | 承辦人 | 李亮翰 | 執行單位 | 工業技術研究院材料與化工研究所 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | EPA-106-XA05-期末報告.pdf | 11MB |
Development and improvement of lead acid battery recycling technology
| 英文摘要 | Lead acid battery is globally highest in production value in all kinds of secondary batteries. With the rising of battery manufacturing quantity, recycling of lead acid battery is an important issue economically and environmentally. The percentage of lead-containing component in lead acid battery is more than 70%, however, domestical recycling rate is still not high enough compared to international leading technology. Low recycling rate of lead also cause high lead concentration and large volume of slag. Low melting and reduction temperature is one of the most important reasons to low recycling rate. The premise of high temperature process is suitable refractory material, which is critical to decrease the reaction between slag and furnace lining and increase the lifetime of refractory material. In this project, analysis of typical commercialized refractory material and technology development of new refractory material were carried out. The introduction of new refractory material into the furnance provide better protection and lifetime, and also the possibility of high temperatue operation. Recycling rate of lead component is raising from 65.6% to between 68% and 70%. Lead concentration in slag is improved and reduced to about 60-90%, as the slag rate is also decreased to 19%-30%. The increase of recycling rate and the reduction of lead slag and concentration are beneficial to lead industry economically and environmentally. | ||
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| 英文關鍵字 | lead, lead acid battery, recycle, slag | ||