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一、世界铌矿石的生产在朝鲜战争期间,美国制造喷射器材料需要大量的铌,因此铌矿石供应不足,1952年美国制定了从国外进口铌矿石的计划,这就大大地刺激铌矿石的增产以及低品位矿石。小型矿床的开发.但是,美国购进铌矿石—宣告结束,铌矿石的价格就开始下降,产量减低.1960年由于焊接结构用钢加铌的问题开始在世界上普及,因此铌矿床的开发又受到重视。
I. Production of Niobium Ore in the World During the Korean War, the United States needed a large amount of niobium for producing ejector materials, so the supply of niobium ore was insufficient. In 1952, the United States formulated a plan to import niobium ore from abroad, which greatly stimulated the production of niobium ore As well as low grade ore. The development of small deposits, but the United States to buy niobium ore - the end of the announcement, the price of niobium ore began to decline, reduce production in 1960 due to the structural steel and niobium welding problems began to spread in the world, so the development of niobium ore Received attention.