近15年来,世界磷酸盐生产呈增长趋势。北非、近东及美国是世界主要的磷酸盐产区。美国是世界上磷酸盐产量最大的国家,1986年估计总产曼为4000万吨,比1985年减少了1100万吨,这主要是由于一些矿山关闭或缩减生产规模以适应世界市场情况所致。 The past 15 years, the world’s phosphate production showed a growing trend. North Africa, Near East and the United States are the world’s major phosphate producing areas. The United States is the country with the largest phosphate production in the world. Estimated total production of Manchuria in 1986 was 40 million tons, 11 million tons less than in 1985, mainly due to the closure or downsizing of some mines to adapt to world market conditions.