The manufacturing process of triacetin
This is the method of manufacturing triacetin. The first step is to prepare materials, acetic acid and glycerin are the main materials, and the ratio of the two is carefully controlled to obtain good results. The acetic acid needs to be selected as pure, and impurities should not enter, so as not to hinder the reaction. Glycerin is also pure in quality. According to the calculation and quantification, the adaptation ratio of the two is the reaction group.
Then, put it in the reactor. The kettle needs to be clean and free of filth. Pour the prepared acetic acid and glycerin in, and add a catalyst to promote the reaction. The amount of catalyst should be used with caution. If the amount is small, the reaction will be slow, and if the amount is large or the side should be introduced.
Turn on the temperature control device and gradually heat up. The temperature is raised to a suitable temperature, between about one hundred and fifty to one hundred and eighty degrees Celsius, to maintain a constant temperature, so that the reaction is sufficient. During the reaction, stir often, and the materials are mixed evenly, promoting molecular collision and increasing the reaction speed.
After the reaction is completed, the product contains impurities and needs to be purified. At the beginning, the low-boiling material is removed by distillation, and the main product is left. After that, the extraction method is used to adapt the extractant to remove impurities and make the product pure. After extraction, the organic phase is separated into phases, and then dried to remove moisture to obtain pure triacetin.
At the end, the purity and physical properties of the product are measured. If it meets the standard, it can be packaged and stored. The packaging should be made of a cleaner, which is tightly sealed, protected from light and moisture This is the approximate manufacturing process of triacetin.