随着全球工业生产的不断发展,人类对矿产资源的开发有增无减。受世界经济周期性波动影响,矿产资源的供需或过剩或紧张,但是由于矿产资源的不可再生性,全球优质矿产资源供应越来越少,部分资源已到了穷途末路的境地。美国、欧洲等国家和地区电解铝工业发展较早,铝土矿已临枯竭。? With the continuous development of global industrial production, mankind’s development of mineral resources is on the rise. Due to the cyclical fluctuations in the world economy, the supply and demand of mineral resources are excess or tense. However, due to the non-renewable mineral resources, the global supply of high-quality mineral resources is getting fewer and fewer and some resources have reached a dead end. The United States, Europe and other countries and regions earlier development of electrolytic aluminum industry, bauxite mine has come to an end. ?