水溶性聚磷酸铵肥料合成工艺研究  

Study on Synthesis Process of Water-soluble Ammonium Polyphosphate Fertilizer

作　　者：陆忠海 李永翔 杨先 舒艺周 李云东 刘晨曦 杨晓龙 马航 Lu Zhonghai;Li Yongxiang;Yang Xian;Shu Yizhou;Li Yundong;Liu Chenxi;Yang Xiaolong;Ma Hang(Research and Development Centre,Yunnan Yuntianhua Co.,Ltd.,Kunming 650228,China;Yunnan ICL YTH Phosphate Research and Technology Center Co.,Ltd.,Kunming 650228,China)

机构地区：[1]云南云天化股份有限公司研发中心,云南昆明650228 [2]云南云天化以化磷业研究技术有限公司,云南昆明650228

出　　处：《云南化工》2023年第12期30-32,共3页Yunnan Chemical Technology

基　　金：云南省重大科技专项(202102AB080002)。

摘　　要：水溶性聚磷酸铵(APP)是一种氮磷养分含量较高的新型肥料,具有易于溶解、兼容性强、结晶温度低和螯合性能好等优点。采用磷酸一铵(MAP)和尿素合成了水溶性APP肥料,针对原料配比、反应温度和反应时间等工艺参数进行了研究。结果表明,全水溶性APP合成的最佳工艺条件为:MAP和尿素原料质量配比为2~5∶1,反应温度为130~250℃,反应时间为30~120 min。该工艺制备的APP产品指标均较优,符合农用(APPQ/YPRTEC 01-2020)合格品应用标准,并且工艺相对稳定、成本较低,具有广阔的应用前景。Water-soluble ammonium polyphosphate(APP)is a new type of fertilizer with high nitrogen and phosphorus nutrient content.It has the advantages of easy dissolution,strong compatibility,low crystallization temperature and good chelating performance.In this paper,water-soluble APP fertilizer was synthesized by monoammonium phosphate(MAP)and urea.The process parameters such as raw material ratio,reaction temperature and reaction time were studied.The results showed that the synthesis conditions of water-soluble APP were as follows:the mass ratio of MAP and urea was 2~5∶1,the reaction temperature was 130~250°C,and the reaction time was 30~120 min.The polymerization process had a great influence on the product performance.The APP products prepared by this process had better indicators and met the application standards of agricultural(APPQ/YPRTEC 01-2020)qualified products.The process was relatively stable and the cost was low,which had broad application prospects.

关 键 词：聚磷酸铵 磷酸一铵 尿素 聚合反应 

分 类 号：TQ442.1[化学工程—化学肥料工业]