某工厂用CaSO4、NH3、H2O、CO2制备(NH4)2SO4,其工艺流程如下: 下列

某工厂用CaSO4NH3H2OCO2制备(NH42SO4,其工艺流程如下:

下列推断不合理的是(                                                                             

A.直接蒸干滤液得到纯净的(NH42SO4

B.生成1molNH42SO4至少消耗2molNH3

CCO2可被循环使用

D.往甲中通CO2有利于(NH42SO4生成

答案

A

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