乙烯酮法，也称为醋酸裂解法，是一种以醋酸为原料生产醋酸的低压高温反应。

The ketene method, also known as the acetic acid cracking method, is a low-pressure high-temperature reaction that uses acetic acid as a raw material to produce acetic acid. The raw materials and triethyl phosphate are used as catalysts. The whole process is divided into two steps. First, acetic acid in the gas phase is broken to produce ketene, and then acetic acid and ketene are absorbed to produce crude acid hydride, and acetic acid with higher purity is obtained through distillation and purification. The biggest feature of this method is the complex production process, many side effects, and large energy consumption, but due to the near-perfect process, the production safety is high. In addition, the acetic acid cracking part requires lower quality of acetic acid, and other devices and recovered acetic acid can be used. Therefore, this method is still widely used in the early construction of domestic and foreign equipment. Ketene is the product of acetic acid cracking and is an important intermediate. It can be used as raw material for the production of pesticides and food preservatives. This product was not formed during the carbonization process. Therefore, the cracking process of vinyl ketone is very feasible.

Ethylene ketone method, also known as acetic cracking, is a low-pressure high temperature reaction that produces acetic acid as raw material. Raw materials and triethyl phosphates are used as catalysts. The whole process is divided into two steps. First, gas-phase acetic acid rupture produces ethylene ketones, which are then absorbed and ethylene ketones are absorbed to produce coarse hydroxides, which are distilled and purified to obtain higher purity acetic acid. The most important feature of this method is the complex production process, many side effects, large energy consumption, but because the process is close to perfect, production safety is high. In addition, the acetic acid lysis section has lower quality requirements for acetic acid, which can be used using other devices and recycled acetic acid. Therefore, this method is still widely used in the early construction of domestic and foreign equipment. Ethylene ketone is the product of acetic acid cracking and is an important intermediate. It can be used as a raw material for the production of pesticides and food preservatives. This product is not formed during the carbonization process. Therefore, the cracking process of ethylene ketones is very feasible.

Vinyl ketone process, also known as acetic acid cracking process, is a low-pressure and high-temperature reaction to produce acetic acid from acetic acid. Raw materials and triethylphosphate were used as catalysts. The whole process is divided into two steps. First, the gas phase acetic acid breaks to produce vinyl ketone, then absorbs acetic acid and vinyl ketone to produce crude acid hydrides, and obtains higher purity acetic acid through distillation and purification. The biggest characteristic of this method is that the production process is complex, there are many side effects, and the energy consumption is large. In addition, the quality requirements for acetic acid in the acetic acid cracking part are relatively low, and other devices and recovered acetic acid can be used. Therefore, this method is still widely used in the early construction of equipment at home and abroad. Ketene is the product of acetic acid cracking and an important intermediate. It can be used as raw materials for the production of pesticides and food preservatives. This product is not formed during carbonization. Therefore, the cracking process of vinyl ketone is very feasible.<br>