Several points about phosphate resources scatter
1) Abundant phosphate resources but too concentrated distribution
Phosphate is one of China’s dominant mineral resources with very large resource and reserve potential. However, the distribution of phosphate resoruces in China is very uneven. 74.40% of retained reserves are concentrated in Yunnan, Guizhou and Sichuan provinces in Southwest China and Hubei and Hunan provinces in South-central China. Except for Sichuan Province where phosphate production can supply most of its demand, phosphate needed in most regions of China relies on the supply by Yunnan, Guizhou and Hubei, thus resulting in the situation that ‘phosphate in the south and west is transported to the north and east’. This situation has had much influence on transportation, material supply of phosphate fertilizer and costs of products.
2) Less high-grade phosphate rock and more low-grade phosphate rock
The presence of abundant phosphate resources is a strong point of China but the pre-sence of less high-grade phosphate rock and more low-grade phosphate rock is a weak point. The retained reserves of high-grade phosphate rock with P2O5 30% in China are only 1.135 billion tons, accounting for 8.51% of the total explored reserves. The average P2O5 grade of China’s phosphate rock is only 18.45% and the reserves of the phosphate rock with P2O5 18% take up about half of the total reserves.Henan Hongxing Mining Machinery Co., Ltd is the professional manufacturer of complete sets of mining machinery, for example,spiral separator,classifiers Welcome all of you to visit our official website.cone crusher manufacturer:http://www.hxjq-crusher.com/8.html
3) More refractory phosphate rock and less easily dressed phosphate rock
Phosphorite reserves make up 85% of China’s retained phosphate reserves and most of the phosphorite is medium- and low-grade. Some high-grade phosphorite can be directly used as material for the production of high-efficiency phosphate fertilizer, but most of it can be industrially used only through dressing. Low-grade phosphorite generally has relatively high contents of harmful impurities and the phosphorite grains are fine and closely interlocked; so dressing is difficult.
4) More thin to moderately thick, inclined to gently inclined phosphate beds that are difficult to mine and less phosphate bodies that are suitable for large-scale, high-intensity mining
Most of China’s phosphate deposits are very old in age and strongly lithified and the phosphate rock is densely cemented; moreover, over 75% of the phosphate beds are inclined to gently inclined and thin to moderately thick. Such occurrence characteristics bring a series of technical problems in high-intensity mining and usually cause a heavy loss, a high dilution rate and a low recovery of phosphate.
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