| 1. | The de-asphalter unit is usually placed after the vacuum distillation tower.
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| 2. | Usually this crude glycerol has to be purified, typically by performing vacuum distillation.
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| 3. | Vacuum distillation increases the relative volatility of the key components in many applications.
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| 4. | A vacuum distillation unit was restarted in March 1994 and shut again in December.
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| 5. | One tool to reduce the number of stages needed is to utilize vacuum distillation.
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| 6. | The two main processing methods, vacuum distillation and reverse osmosis, use large quantities of energy.
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| 7. | Vacuum distillation systems operate at reduced pressure, thereby lowering the boiling points of the materials.
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| 8. | Preferable vacuum distillation so you don't blow everything up.
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| 9. | However, vacuum distillation is cheaper on an industrial scale.
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| 10. | The final products are separated by vacuum distillation.
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