1. Some calculations are made for the utilization of waste heat in the tail gas from preneutralization,pipe reaction and secondary ammoniation sections.
   介绍预中和反应的尾气与管式反应及二次氨化反应尾气混合洗涤后的尾气余热利用的有关计算。
2. An analysis is made of the present status of production of DAP by the mixed process of preneutralization reactor tank-pipe reactor,as the moisture content of the product fluctuates greatly.
   针对预中和反应槽-管式反应器混合工艺生产磷酸二铵产品时,产品水含量波动较大的生产现状进行了分析。

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