用磁力驱动双搅拌反应器研究磷酸氨化的宏观动力学

A STUDY ON THE MACRO-KINETICS OF AMMONIATION OF PHOSPHORIC ACID BY DOUBLE MAGNETIC STIRRING REACTOR

用磁力驱动双搅拌反应器研究磷酸氨化的宏观动力学崔萍，刘期崇，王建华（成都科技大学化工系，成都６１００６５）关键词：双搅拌反应器，磷酸氨化，宏观动力学１前言用“料浆浓缩法￣［１］（简称料浆法）生产磷铵，已在我国迅速推广。外环流氨化反应器，即快速氨化蒸发...

The reaction kinetics of ammoniation of wet phosphoric acid was studied by using a doublemagnetic stirring reactor.Under similar conditions of slurry concentration method of am moniumphosphate production it can be found that the reaction between wet phosphoric acid and gaseousammonia was a rapid reaction controlled by the gas-film mass transfer.The empirical telationbetween the gas-film mass transfer coefficient and other factors was obtained as follow Sh=2.01 x10￣(-4)Re￣(2.49) The above relation provides an experimental basis which can be used for the process scale upand intensification of the ammonium phosphate production by the《slurry method》.