This paper summarize the existing problems in the cycle use of process water for phosphoric acid production, and also some measures to solve were put forward.
针对磷酸生产用水的特殊性，总结了大装置磷酸生产用水封闭循环使用存在的问题，并因地制宜地找到了解决此问题的方法。
The corrosion situation of some metal materials used for axial-flow pump and impeller of slurry pump in wet phosphoric acid production was studied.
研究了几种金属材料在湿法磷酸生产中的浓缩轴流泵和萃取槽料浆泵叶轮上的耐腐蚀使用情况。
The storage of the by-product phosphogypsum from wet phosphoric acid production not only takes a lot of space, but also poses a severe pollution of the environment.
湿法磷酸生产副产磷石膏的堆放不仅占用大量土地，而且严重污染环境。
The S-based NPK capacity enlargement leading to the increase of phosphogypsum in phosphoric acid production, mechanical faults occurred to the twin screw conveyor.
由于S NPK装置扩能，使磷酸生产的副产品磷石膏增加，致使输送磷石膏的双螺旋输送机常发生故障。
The production practice shows that addition of a proper amount of phosphoric acid for bricking of silicon carbide tray of the re-distiller is favorable for extending lifetime of the re-distiller body.
生产实践表明，添加适量的磷酸砌筑碳化硅塔盘，有利于延长塔体寿命。
The production method of potassium dihydrogen phosphate is discussed emphatically, in which ammonium bicarbonate, potassium chloride and phosphoric acid are used as raw materials.
重点介绍了以碳酸氢铵、氯化钾、磷酸为原料生产磷酸二氢钾的新方法。
The influences of phosphoric acid quality on the production of DAP are discussed from such 3 aspects as the concentration of phosphoric acid, impurity and temperature.
从磷酸浓度、杂质含量、温度3个方面分析磷酸质量对磷酸二铵生产造成的影响。
This article discusses the production of forage calcium hydrophosphate from sludge phosphoric acid.
研究了一种用贵州省丰富的泥磷酸生产饲料磷酸氢钙的方法。
The phosphor yield of domestic feed grade calcium monophosphate production processes is low, and there are a few production plants using the phosphoric acid concentration defluorination method.
国内饲料磷酸氢钙生产工艺的磷得率低，磷酸浓缩脱氟法的生产厂少。
The effect of empty tower used in wet-process phosphoric acid production is better by comparison with filled tower.
通过空塔与填料塔在湿法磷酸过程中的应用情况对比，说明空塔用于湿法磷酸生产运行效果良好。
The progress of these technologies leads to the practical stage in technical development of the hemihydrate process for phosphoric acid production and its commercialization is realized.
这些技术的进展使半水物湿法磷酸的技术开发进入了实用阶段，实现了工业化。
Production technologies of food grade calcium hydrogen phosphate such as phosphoric acid purification method, bone glue extraction method and applications are introduced in detail.
本文介绍了国内外食用磷酸钙盐的概况，详细介绍了磷酸净化法、骨胶浸取法等食品级磷酸氢钙的生产工艺以及应用情况。
A purification process of wet-process phosphoric acid, which is used for the production of toothpaste-grade calcium hydrogen phosphate, was studied.
以湿法磷酸为原料制取牙膏级磷酸氢钙的关键在于解决湿法磷酸的净化与脱氟问题。
A purification process of wet-process phosphoric acid, which is used for the production of toothpaste-grade calcium hydrogen phosphate, was studied.
以湿法磷酸为原料制取牙膏级磷酸氢钙的关键在于解决湿法磷酸的净化与脱氟问题。
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