【摘要】 在现行的氨碱法生产纯碱的过程中 ,预灰桶内CaSO4·2H2 O结疤现象严重。文章提出将预灰桶改造成结晶器 ,使CaSO4·2H2 O晶体能及时连续地排出 ,避免形成结疤 ,可以延长设备的运行周期。文章通过对CaSO4·2H2 O的结晶机理的探讨和试验 ,建立了CaSO4·2H2 O的结晶动力学数学模型 ,为工业上预灰桶 -结晶器的优化设计提供理论依据。更多还原

【Abstract】 The phenomenon of CaSO 4·2H 2O scaling in the prelimer is harmful to the continuous operation of soda production. In this paper, we suggest that the crystallizer is used as a substitute for the prelimer so that CaSO 4·2H 2O crystals can be removed, scaling can be avoided and the period of soda production can be prolonged. By the experiments the CaSO 4·2H 2O crystallization kinetical model is given.It is the theoretical basis of the optimal design of the prelimer crystallizer.更多还原