Chloroacetic acid is an important organic chemical product, mainly used in the production of fine chemicals such as medicines, pesticides, dyes, and fragrances. It can be prepared through different synthetic routes, including sulfuric acid-catalyzed routes and sulfur-catalyzed routes. The market demand for chloroacetic acid is closely related to the application of its downstream products. With the continuous development of the fine chemical industry, the demand for chloroacetic acid is also growing.