摘要:
磷石膏是磷工业生产时的副产物,伴随着磷肥、磷酸工业的快速发展,磷石膏的排放量日益增加且大多采用堆积的处理方式,利用率较低,严重限制了磷肥工业的生存与发展。磷石膏的综合开发利用已成为当前急需解决的安全及环保问题。概述了磷石膏的综合利用现状,分析了磷石膏中磷、氟和有机质等杂质对其综合利用的影响及其预处理方法。开发磷石膏中具有潜在价值的资源,将磷石膏再次资源化,实现磷石膏的大规模综合利用刻不容缓。
Abstract:
Phosphogypsum is a by-product of phosphate in industrial production. Along with rapid development of phosphate fertilizer, phosphate industry, emission of phosphogypsum is increasing and most of them are treated by accumulation, of which the utilization rate is low, seriously restric-ting the survival and development of the phosphate fertilizer industry. Comprehensive utilization of phosphogypsum has become an urgent need for safety and environmental protection. In this paper, the current situation of comprehensive utilization of phosphogypsum was briefly summarized, analy-sis of the pretreatment method of P2 O5 in phosphogypsum was made, fluoride and organic matter and the influence of impurities on its comprehensive utilization were also discussed. With the devel-opment of the potential value of phosphogypsum, they can become resources again. Large-scale comprehensive utilization of phosphogypsum brooks admit of no delay.
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