Environmentally friendly approach for sustainable recycling of spent SCR catalysts and Al alloy scrap to prepare TiAl3 and low-Fe Al alloys

A new environmentally friendly (no waste gas, liquid, and slag), efficient (two steps), and low-cost (wastes as raw material) approach is proposed to recycle spent SCR catalysts and Al alloy scrap for preparing TiAl 3 and low-Fe Al alloys.