浓缩酸性料浆制磷酸铵的研究  

Study on Ammonium Phosphate Production from Concentrated Acidic Slurry

作　　者：张允湘[1] 蒋绍志[1] 罗洪波[1] 钟本和[1] 应建康[1] 

机构地区：[1]四川大学化学工程学院,四川成都610065

出　　处：《硫磷设计与粉体工程》2008年第6期1-4,共4页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：对以金河磷矿为原料制得的磷酸铵酸性料浆,进行了料浆中和度与pH值、料浆沸点与其w(H2O)、料浆中w(H2O)与黏度、料浆温度与黏度、料浆中w(H2O)与密度等的实验研究。结果表明:当中和度为0.52时,料浆中w(H2O)≤10时,浓缩操作可以顺利进行,此时在130℃时料浆黏度为285mPa.s。利用此酸性料浆浓缩得到的MAP产品中w(P2O5)有效≥42,P2O5有效率[w(P2O5)有效/w(P2O5)全]≥98,此实验数据可为进一步工业性试验提供参考依据。For the acidic slurry of ammonium phosphate produced from Jinhe phosphorite as the raw material,experimental study was conducted on the neutralization degree and pH value of the slurry,boiling point and w(H2O) of the slurry,w(H2O) and viscosity of the slurry,temperature and viscosity of the slurry,w(H2O) and density of the slurry,etc.The results indicate that,when the neutralization degree is 0.52,and w(H2O)≤10% in the slurry,the concentration operation can proceed smoothly,and at 130 ℃,the slurry viscosity is 285 mPa·s.In the MAP product obtained from concentration of this acidic slurry,the w(P2O5)effective≥42%,and the effectiveness ratio of P2O5[w(P2O5)effective/w(P2O5)full]≥98%.The experimental data can provide reference for further industrial test.

关 键 词：磷酸-铵 酸性料浆 浓缩 中和度 黏度 试验 

分 类 号：TQ442.14[化学工程—化学肥料工业]