Acetone is a colorless, volatile liquid with a strong odor. It is widely used in various industries, such as medicine, petroleum, chemical, etc. Acetone can be used as a solvent, cleaning agent, adhesive, paint thinner, etc. In this article, we will introduce the manufacture of acetone.

The production of acetone mainly includes two steps: the first step is to produce acetone from acetic acid by catalytic reduction, and the second step is to separate and purify the acetone.

In the first step, acetic acid is used as raw material, and catalyst is used to carry out catalytic reduction reaction to obtain acetone. The commonly used catalysts are zinc powder, iron powder, etc. The reaction formula is as follows: CH3COOH + H2 → CH3COCH3. The reaction temperature is 150-250℃, and the reaction pressure is 1-5 MPa. The zinc powder and iron powder are regenerated after the reaction and can be used repeatedly.

In the second step, the mixture containing acetone is separated and purified. There are many methods for separating and purifying acetone, such as distillation method, absorption method, extraction method, etc. Among them, distillation method is the most commonly used method. This method uses different boiling points of substances to separate them by distillation. Acetone has a low boiling point and a high vapor pressure. Therefore, it can be separated from other substances by distillation under a high vacuum environment at low temperature. The separated acetone is then sent to the next process for further treatment.

In summary, the production of acetone includes two steps: catalytic reduction of acetic acid to obtain acetone and separation and purification of acetone. Acetone is an important chemical raw material in the petroleum, chemical, medicine and other industries. It has a wide range of applications in the fields of industry and life. In addition to the above methods, there are other methods for manufacturing acetone, such as fermentation method and hydrogenation method. These methods have their own characteristics and advantages in different applications.