順酐的主要經營方法有苯氧化法、丁烯氧化法和正丁烷氧化法，但仍以苯氧化法為主。
The main management methods of maleic anhydride include benzene oxidation, butene oxidation and n-butane oxidation, but benzene oxidation is still the main method.
1.苯氧化法苯在V-Mo-P系催化劑作用下，在固定床中發生氧化反應，生成山東順酐，反應溫度為365℃（反應床層也可用沸騰床，但消耗高）。然后用水吸收生成順丁烯二酸，再經共沸脫水和精餾，刮片得到成品。
The results show that: 1. Benzene is oxidized by v-mo-p catalyst in fixed bed to form Shandong maleic anhydride at 365 ℃ (boiling bed is also used in reaction bed, but the consumption is high). Then, maleic acid is formed by absorption with water, and then the product is obtained by azeotropic dehydration and distillation.
2.丁烷（或丁烯）氧化法丁烷（或丁烯）在V-Mo催化劑作用下，經空氣或氧氣氧化生成山東順酐，反應溫度350-400℃。然后再經水吸收，脫水和精制得到成品。
2. Butane (or butene) oxidation method butane (or butene) is oxidized by air or oxygen in the presence of v-mo catalyst, and the reaction temperature is 350-400 ℃. Then the product is absorbed by water, dehydrated and refined.
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