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用硝酸分解伴生稀土磷矿制备全水溶性硝酸磷肥和工业级碳酸钙、同时富集稀土的工艺可高效地利用贵州丰富的中低品位伴生稀土磷矿;结合织金煤炭资源优势可形成产业集群,在解决了磷化工对硫资源的过度依赖问题的同时,也避免了大量磷石膏的排放对环境造成的影响;对提高磷矿资源利用率、生产高附加值产品、促进企业清洁生产、发展循环经济、实现可持续发展具有重要战略意义。
Using nitric acid to decompose companion rare earth phosphate to prepare all-water-soluble nitrophosphate and industrial grade calcium carbonate, meanwhile enriching the rare earth technology can make full use of rich low-grade associated rare earth phosphate rock in Guizhou; , In addressing the phosphorous chemical sulfur resources over-reliance on the issue, but also to avoid a large number of phosphogypsum emissions on the environment; to improve the utilization of phosphate resources, production of high value-added products, and promote cleaner production and development Circular economy, to achieve sustainable development has an important strategic significance.