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过热蒸汽流化床制备粒状磷酸一铵的实验研究
Experimental investigation on production of granular MAP by reaction and drying in a superheated steam fluidized bed
【摘要】 实验研究了过热蒸汽流化床反应干燥一步法制备粒状MAP的工艺条件,在70 kPa,100~130℃,进料n(NH3)/n(H3PO4)为1.2~1.6条件下,床层操作稳定,制得了性状良好的球形磷酸一铵产品。
【Abstract】 An experiment is conducted to investigate the reaction-drying technology of one-step process for producing granular MAP with a superheated steam fluidized bed.The results show that the fluidized bed can work stably when the pressure is 70 kPa,the temperature within the range of 100 ~130 ℃ and the feeding molar fraction of NH3 to H3PO4 1.2~1.6.The spherical MAP product is obtained.
【关键词】 流化床;
过热蒸汽;
反应干燥;
磷酸一铵;
【Key words】 fluidized bed; superheated steam; reaction-drying; monoammonium phosphate(MAP);
【Key words】 fluidized bed; superheated steam; reaction-drying; monoammonium phosphate(MAP);
【基金】 国家863计划(2006AA05Z235)
- 【文献出处】 磷肥与复肥 ,Phosphate & Compound Fertilizer , 编辑部邮箱 ,2007年05期
- 【分类号】TQ442
- 【被引频次】1
- 【下载频次】189