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发明公开
CN102366724A 一种甲醇羰基化合成醋酸的催化剂体系及应用 失效 - 权利终止

一种甲醇羰基化合成醋酸的催化剂体系及应用
摘要：
一种甲醇羰基化合成醋酸的催化剂体系及应用，该催化剂体系中由主催化剂IrCl3•3H2O、助催化剂CH3I和过渡金属卤盐CoCl2•6H2O、NiCl2•6H2O、CuCl2•2H2O、ZnCl2或ZnI2、以及作为极性调节剂的离子液体[BMIM]Tf2N或[Bupy]Tf2N构成。该催化剂体系占反应体系质量的61％以下，CH3OH相对于所述反应体系的质量浓度不少于39％；在本发明的催化剂体系和反应体系中也不需添加水，不但提高了催化剂体系的活性与稳定性；真正为简化后续醋酸和水的分离提供了极大的便利。与现有技术相比，本发明的生产总成本降低得更多。
摘要（英）：

The invention provides a catalyst system for synthesizing acetic acid through carbonylation of methanol and application. The catalyst system comprises a main catalyst IrCl3.3H2O, a cocatalyst CH3I, a halogen salt of transition metals CoCl2.6H2O, NiCl2.6H2O, CuCl2.2H2O, ZnCl2 or ZnI2, and ionic liquid [BMIM]Tf2N or [Bupy]Tf2N used as a polarity regulator. The mass of the catalyst system accounts for less than 61% of the mass of a whole reaction system, and the mass concentration of CH3OH is no less than 39% on a basis of the reaction system; no water is need to be added in the catalyst system and the reaction system in the invention, thereby improving the activity and stability of the catalyst system and truly providing great convenience for simplification of subsequent separation of acetic acid from water. Compared to the prior art, the invention has the advantage of substantially reduced total production cost.

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