为了增加磷肥的产量,在磷块岩原料基地不足和矿石质量下降的情况下,有必要制定新的有效流程和选别方法。苏联磷块岩矿石的特点是P_2O_5含量低,难选。因此,叶戈里耶夫、上卡姆和金吉谢普矿床的矿石是采用预先洗矿的浮选法选别。现代选矿工艺的主要作业和辅助作业需要使用大量的水。选别1吨磷矿石需用5—10米~3水,而且约占矿石准备和洗矿用水量的一半。 In order to increase the production of phosphate fertilizer, it is necessary to formulate new effective processes and sorting methods when the raw material base of phosphorous rock is insufficient and the quality of ore is declining. Soviet Union phosphorite ore is characterized by low P_2O_5, difficult to pick. Therefore, the ores of Yegoriyev, Kamchatka and Jinjiseip deposits are sorted by pre-washing flotation. The major operations and auxiliary operations of modern beneficiation processes require the use of large amounts of water. Select 1 ton of phosphate rock 5-10 meters to 3 water, but also about half of ore preparation and washing water.