副产盐酸分解磷矿转鼓法生产低浓度复合肥的应用研究  

Application Study of Production of Low- Concentration Compound Fertilizer by Decomposing Phosphate Rock with Byproduct Hydrochloric Acid by Drum Method

作　　者：赵永清[1] 冯学宁 朱德林 张祖华 余永德 ZHAO Yongqing;FENG Xuening;ZHU Delin;ZHANG Zuhua;YU Yongde(Sichuan Lutianhua Co. , Ltd. , Luzhou 646300, China;Jiuhe Co. , Ltd. , Chongqing 402260, China)

机构地区：[1]四川泸天化股份有限公司,四川泸州646300 [2]九禾股份有限公司,重庆402260

出　　处：《化肥工业》2019年第4期18-21,29,共5页Chemical Fertilizer Industry

摘　　要：介绍了以硫酸钾生产过程中副产的盐酸以及磷矿粉、氨、尿素、氯化铵、氯化钾为原料生产低浓度复合肥(N-P2O5-K2O=15-5-5)的小试试验和工业化应用情况。通过小试试验和工业化应用的优化改进,开发成功低浓度复合肥绿色生产工艺,所生产的低浓度复合肥产品各项指标达到或超过国家标准的要求。An introduction is given of the small- scale test and industrial application of production of low- concentration compound fertilizer (N- P 2 O 5 - K 2 O=15- 5- 5) by using byproduct hydrochloric acid in the production of potassium sulfate, phosphate rock powder, ammonia, urea, ammonium chloride and potassium chloride as raw materials. Through small-scale tests and optimization and improvement of industrial application, the low-concentration compound fertilizer green production process is successfully developed, and the indexes of the low-concentration compound fertilizer product produced meet or exceed the requirements of national standards.

关 键 词：盐酸 分解 磷矿 低浓度复合肥 

分 类 号：TQ444.5[化学工程—化学肥料工业]