氢氧化钠羰基化合成甲酸钠工艺深入研究

通过热力学计算证明一氧化碳水合反应无法进行,同时对氢氧化钠羰基合成甲酸钠反应机理进一步探讨。对甲酸钠合成的化学反应焓变进行理论计算,为-90.131 kJ/mol。在此理论基础上,围绕优化甲酸钠反应条件开展研究,摸索出了生产中预热器温度控制的适宜范围(145~155℃)。通过实验发现:一氧化碳压力越高,反应速度越快,反应时间越短;在一氧化碳分压一定的情况下,氮气分压高低对甲酸钠的合成反应速度和转化率都没有影响。

Futher Study on Synthesis of Sodium Formate with Sodium Hydroxide Carbonylation

Thermodynamic calculation indicate that the action of carbon monoxide hydratization was unworkable and simuhaneously the reaction mechanism of synthesis of sodium formate with sodium hydroxide earbonylation was further discussed. Chemical reaction enthalpy of ,zynthesis of sodium formate was calculated, The is -90. 131 kJ/mol. On the basis of the theory, the production process of sodium formate was discussed. The preheater temperature should be controlled at 145 - 155℃. It was found that the reaction is faster and the time is lower with pressure of CO is higher by experimental studying; Nitrogen partial pressure will not effect the reaction rate and conversion in the fixed partial pressure of carbon monoxide.