Post-consumer wastes including: Waste Electronic and Electrical Equipment (WEEE), Printed Circuit Boards (PCBs), batteries, and fluorescent bulbs, contain valuable metals such as Precious Group Metals (PGMs), base metals, and Rare Earth Elements (REEE), capable of recovery by the metallurgical industry. The metallurgical industry itself produces a number of slags, dusts or wastes some of which are classified as hazardous, e.g. Electric Arc Furnace (EAF) dust, and Spent Pot Lining (SPL). Recycling of these diverse materials is hindered by factors including: (i) logistics (collection), (ii) economics (low value and complex processing), (iii) human psychology (NIMBY), (iii) lack of political will, (iv) technical complexity (low grade, heterogeneous, high standard deviation, varying physical characteristics), (iv) lack of proven processing technologies (first-of-a-kind or one-of-a-kind processes), etc. Current and best practices related to these issues will be explored and some examples given based on direct experience with WEEE, battery, EAF dust and SPL recycling.