Liquid-ring-vacuum-pump-in-the-vacuum-distillation-industry
Vacuum distillation is also used for deep purification of some special gases. Some compounds have high boiling points. To boil such compounds, it is better to lower the pressure of boiling rather than 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 the distillation can proceed. The technology is called vacuum distillation and is commonly used in the laboratory as a vacuum carburetor. This technique is useful for compounds that boil at atmospheric pressure above their decomposition temperature, and any attempt to boil them at atmospheric pressure will break them down.
The application principle of roots pump in papermaking industry |
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