patents on phosphate rock benefication

The term phosphate rock (or Phosphorite) is used to denote any rock with high phosphorus content. The largest and least expensive source of phosphorus is obtained by mining and concentrating phosphate rock from the .

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patents on phosphate rock benefication chemtech, patents on phosphate rock benefication,Phosphate beneficiation operations around the world which use flotation as the species so that the rock concentrate would be more amenable to ing the submission of an international patent application ...

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Phosphate rock is calcined under conditions calculated to completely oxidize the carbon and sulfur in the rock. rock phosphate beneficiation plant – Stone Crusher Machine . Phosphate rock is prolific in the . this type of concentrator is no longer applied calcination.

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11 21 Phosphate Rock Processing United States . ... use of spiral concentrator for ore benefication. ... Up to now, with 500 mine EPC projects, 70 kinds of ores mining technologies and experience and 20 patents, Xinhai has established overseas offices in Sudan, Zimbabwe, Tanzania, Peru and Indonesia and exported to more than 20 countries. ...

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An improved phosphate ore beneficiation process wherein phosphate ore containing coarse, ... ball mill system for rock phosphate; phosphate ore benefication in egypt; Contact Supplier ... Founded in 1987, AFB has attained 124 patents on crushers mills over the past 30 years. 22 overseas offices not only manifest our popularity, but also solve ...

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UNITED STATES PATENTS 2, 151,175 3/1939 Wuensch..... . . . 241/20 4 499. 49b 48 ... phosphate rock, wherein a first treatment section effects the ... BENEFICATION OF PHOSPHATEROCK This invention relates to the beneficiation treatment of phosphate rock .