Recycling Aluminum Casting Alloy Scrap Using Molten Salt Electrolysis
Recycling Aluminum Casting Alloy Scrap Using Molten Salt Electrolysis
复制标题
熔盐电解回收铝合金铸造废料
DOI：
10.1007/978-3-030-92529-1_136
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Zhu Hongmin
中科院分区：
文献类型：
--
作者：
Lu Xin;Watanabe Kyosuke;Takeda Osamu;Zhu Hongmin
铝是一种重要的基础金属，由于其优异的性能，如重量轻（2.7 g cm-3），高比强度和高耐腐蚀性，被广泛用于各种行业。然而，从铝矿中提取和熔炼铝的过程是非常耗能的，使得对铝的回收给予了显著的关注。目前，约1/3的铝由废铝供应。然而，目前通过重熔工艺回收铝是一种降级的方法，因为铝废料中含有的合金元素不能有效地分离，从而富集在回收的铝中。目前再生铝中的高合金化浓度限制了其在铝铸造合金中的应用，铝铸造合金具有比锻造合金高得多的合金化元素容许浓度。为了实现铝的升级回收，采用熔盐电解法分离典型铸造铝合金中最重要的两种合金元素硅和铜。
Aluminum is an important base metal that is widely used in various industries owing to its excellent properties, such as light weight (2.7 g cm−3), high specific strength, and high corrosion resistance. However, the extraction and smelting process of aluminum from aluminum ore is extremely energy-intensive, such that significant attention is being given to aluminum recycling. Currently, approximately 1/3 of aluminum is supplied from aluminum scrap. However, the current aluminum recycling by remelting process is a downgrade approach because the alloying elements contained in the aluminum scrap cannot be efficiently separated hence enriches in the recycled aluminum. The high alloying concentration in the current recycled aluminum limits its application to aluminum casting alloys, which have much higher tolerable concentration for alloying elements than that of wrought alloys. To achieve an upgrade recycling of aluminum, in this study, separation of the silicon and copper, the two most important alloying elements in typical aluminum casting alloys, were carried out by using a molten salt electrolysis process.
熔融 LiCl-KCl 体系中合成 SiH 4 的新型电化学方法，第二部分：Si-Cu 合金阳极的优点
影响因子：
2.5
作者：
T. Nohira;D. Miura;Y. Ito
通讯作者：
Y. Ito