Frequently Asked Questions

by B/R Instrument

How do I choose a distillation system for my application?

There are many considerations when choosing a distillation system. These include:

  • Volume of sample to be distilled
  • Difference in boiling points of chemicals to be separated
  • Desired Purity of the distilled material

Send us an email with the details of your application and we can make a recommendation for you.

What is the difference between spinning band distillation and packed column distillation?

All distillations attempt to separate a lower boiling material from a higher boiling material. Packed columns are "packed" with a material that creates a large surface area within the distillation column. Vapors rise through the column and are condensed by the condenser. The descending condensate "wets" the packing. Ascending vapors rise through the wet packing and are forced into intimate contact with the condensate. This intimate contact causes the vapor to become enriched in the lower boiling material. This process is often call rectification.

Spinning band distillation creates intimate contact between the vapors and the condensate in a completely different way. It uses a helix rotating at high speeds inside the distillation column. The rotating band forces vapors into intimate contact with the condensate on the wall of the distillation column. This contact takes place in a very thin layer that is refreshed thousands of times per minute. As a result, spinning band distillation gives a very large number of theoretical plates in a fairly short distillation column.

Is it time consuming to recycle solvents?

No! Solvent recycling is highly automated with B/R's solvent recycling systems. It only takes a few minutes each day to operate the equipment and manage the waste streams.

What range of automation is available for B/R distillation systems?

We offer manual, semi-automatic and fully automatic distillation systems. This range of automation allows the customer to choose a system that fits their needs and their budget.

What range of volumes can B/R's distillation system handle?

Our range of distillation systems can handle samples as small as 5 mls, as large as 200 liters and a wide variety of pot sizes in between.

What is the range of theoretical plates for the distillation columns made by B/R?

We have columns with as little as 1 theoretical plate and as many as 200 theoretical plates. The 200 theoretical plate column (36-100) is capable of separating materials that boil as close together as 0.5 C.

What types of applications can this distillation equipment be used for?

There are many applications including the following:

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