Cypriot and Phoenician metalworkers produced 15 million tons of pyrometallurgical residues at the vast dumps of Riotinto.
塞浦路斯和腓尼基的金属工人在里奥图的大型废料场生产了1500万吨的焦化废渣。
2
The existing pyrometallurgical process to prepare metal niobium is complex, expensive, energy intensive and probably polluting.
现有的金属铌和铌基合金制备工艺复杂、成本高、能耗大、污染环境。
3
Use pyrometallurgical to reclaim scrapped lead-acid battery has the defact of high energy consumption and severe pollution. The reclaim rate is only over 80%.