早在1942年人们就发现了坦桑尼亚普古(Pugu)山区的高玲土矿藏,从那时起就有人对此矿床断续地进行小规模开采。近年来,除了国内市场对普古粘土的需求量明显增长以外,还要向非洲一些国家出口,使得坦桑尼亚国家矿业公司决定扩大高岭上的生产。计划投资1500万美元,建立一个新的精选厂,并于2至3年后投产。 As early as 1942, a high-Ling earth deposit was discovered in the Pugu mountains of Tanzania, and intermittent small-scale mining of the deposit has been carried out since then. In recent years, in addition to the notable increase in demand for Pu clay in the domestic market, it has also been exported to some African countries, allowing the Tanzanian national mining company to decide to expand its production at Kaolinite. Plans to invest 15 million U.S. dollars to establish a new concentrator plant and put it into operation in two to three years.