Method for preparing ethyl acetate through methanol carbonylation

The invention relates to the field of preparation of ethyl acetate, in particular to a method for preparing ethyl acetate through methanol carbonylation. The method comprises steps as follows: the temperature of a reactor is increased to 190-210 DEG C under the nitrogen atmosphere, and then nitrogen is introduced into the reactor; hydrogen and carbonic oxide are introduced into methanol containing organic halide, the components are heated by a preheater and mixed uniformly, feed gas is formed, passes a catalyst reactor accommodating a catalyst and is subjected to a reaction at reaction temperature of 50-850 DEG C, under the reaction pressure of 0.1-30 Mpa and at the gaseous hourly space velocity of 100-5,000 h, and ethyl acetate is obtained. According to the method, the catalyst and ethyl acetate are easy to separate, and pure methyl acetate can be directly prepared. 本发明涉及乙酸乙酯的制备领域，特别公开了种甲醇羰基化制备乙酸乙酯的方法。它的步骤为：在氮气气氛下将反应器升温到190-210℃，然后通进氮气；向含有有机卤化物的甲醇中通入氢气和氧化碳，通过预热器加热混合均匀成为原料气后通过装有催化剂的催化剂反应器，在反应温度50-850℃、反应压