论文部分内容阅读
磷矿主要(90％以上)是用于制造磷肥。由于农业对磷肥的需要量不断增长,为了满足磷肥加工的需要,各国对低品位磷矿的选矿、特别是钙质磷块岩的选矿日益重视。例如,在十一届国际选矿会议后专门召开了低品位钙质磷矿的选矿座谈会,会上提出了二十二篇报告。定于1977年8月在巴西圣保罗市召开的十二届国际选矿会议上将组织专门的磷矿选矿座谈会继续讨论关于低品位磷矿的选矿问题。我国解放后,在伟大领袖和导师毛主席的领导下,磷矿的地质勘探和选矿同其他工业一样飞跃发展,积累了丰富的资料。这些资料为我们深入认识问题提供了依据。
Phosphate rock is mainly (90%) is used to make phosphate fertilizer. Due to the increasing demand for phosphate fertilizer from agriculture, in order to meet the needs of phosphate fertilizer processing, various countries pay more and more attention to the beneficiation of low-grade phosphate rock, especially calcium phosphate rock. For example, after the 11th International Conference on Mineral Dressing held a special discussion on the beneficiation of low grade calcitic phosphate rock, twenty two reports were submitted. Scheduled for the 12th International Beneficiation Conference to be held in São Paulo, Brazil, in August 1977, a special workshop on phosphate rock beneficiation will be organized to continue discussions on the beneficiation of low-grade phosphate rock. After the liberation of our country, under the leadership of Chairman Mao and the great leader and mentor, the geological prospecting and beneficiation of phosphate rock have enjoyed the same rapid development as other industries and accumulated rich information. These materials provide the basis for our in-depth understanding of the issue.