Vacuum pump in vacuum distillation industry
Vacuum pump is widely used in industrial production. How to choose and use vacuum pump correctly is particularly important. The so-called vacuum distillation is a distillation method. It is usually used to separate substances that are easy to decompose when heated to boiling point at atmospheric pressure, or to combine with other distillation methods (such as steam distillation) to reduce distillation temperature and improve separation efficiency. Used for separation and purification of chemical, organic, metal compounds, metal alkoxides, etc.
Vacuum distillation is also used for deep purification of some special gases. Some compounds have very high boiling points. In order to boil these compounds, it is better to lower the pressure at which they boil than to raise the temperature. Once the pressure is reduced to the vapor pressure of the compound (at a certain temperature), the compound begins to boil and distillation can proceed. This technology is called vacuum distillation and is commonly used in laboratories in the form of vacuum carburetors. This technique is useful for compounds whose boiling point exceeds their decomposition temperature at atmospheric pressure, and attempts to boil such compounds at atmospheric pressure will cause them to decompose.
Vacuum pump in vacuum distillation industry should pay attention to:
1. What is the required vacuum degree and pumping speed in this vacuum distillation process?
2. Is the extracted gas corrosive?
3. Is the exhausted gas flammable or explosive?
4. Pipeline connection of the exhausted gas.
5. Whether the extracted gas contains condensable gases such as water vapor or not.