Phosphate consumption and supply state in China
In 1996 to 1998 China produced about 26 million tons of phosphate rock per year, most of which supplied domestic demand. There are two types of phosphate rock produced in China: one type is phosphate rock which is sold to the users directly after mined without dressing (or crushing and sieving). This type of phosphate rock is mainly used in the production of calcium superphosphate and calcium-magnesium phosphate. All the small mines and part of medium-sized mines produce this type of phosphate rock. The other type is phosphate rock mined by state-owned large mines. Besides the high-grade phosphate rock (with P2O5 30%) mined, the remaining phosphate rock with P2O5 30% is all dressed into high-quality phosphate concentrate. One part of the concentrate is processed to high-phosphate fertilizer in these mining enterprises and the other part is marketed to phosphate fertilizer plants throughout China to produce high-phosphate fertilizer and phosphate chemicals.Henan Hongxing Mining Machinery Co., Ltd is the professional manufacturer of complete sets of mining machinery, for example,vibrating screen,sand making machine Welcome all of you to visit our official website.mobile jaw crushers:http://www.hxjq-crusher.com/1.html
At the present the structure of China’s phosphate consumption is as follows: phosphate fertilizer, 84 to 88%; yellow phosphorus, 7%; the rest are phosphorus products.
Phosphate fertilizers produced in China mainly include calcium superphosphate, calcium-magnesium phosphate, double superphosphate, ammonium phosphate, potassium dihydrogen phosphate and other high-efficiency compound fertilizers. According to the data of the former Ministry of Chemical Industry, China’s production of phosphate fertilizer in 1997 was 6.4076 million tons (or 7.15 million tons of P2O5% according to the Statistical Yearbook of China), an increase of 11.43% over the previous year, of which high-concentration compound phosphate fertilizer and compound-mixed fertilizer were 4.3726 million tons, an increase of 266,700 tons over the previous year. China’s high-concentration compound fertilizer still falls far short of the agricultural demand.
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