How to improve the rotary evaporator recovery rate?

[GroovyOctopusLabs]

Optimizing your RotoVap

It’s not really a big deal, certainly not a safety issue just a little pump general knowledge. On another note, she RIPS. Only ran for about 15 minutes tonight, have a few good vacuum leaks to fix still but we clocked around 40 lph. We’ll see if it’ll do 60 when the leaks are fixed and the feed is preheated [iMarkup_20210218_193216]

Optimizing your RotoVap

One of the most common methods of recovering solvent from hash in the lab is with a rotary evaporator. This distillation apparatus operates under vacuum to reduce the boiling point of the solvent, allowing us to evaporate off our solvent without damaging the cannabinoids, at much lower temperatures. The boiling flask rotates to create a thin film, which speeds up the evaporation. After the solvent is evaporated, and is traveling towards the vacuum pump in the vapor stream, it passes over the c…

Dry Ice use for Roto Optimization

I’ve got a 20L E Lab Roto Vap with a 2502 Welch Diaphram and the 1.5HP Polyscience Duachiller. We were only hitting 6.5L/Hour recovery rate and not sure why, we had previously been hitting bigger numbers. We have now rigged up a copper coil in a -20 freezer and have been feeding it dry ice to bring our cooler temp down and enhance our condensation rate. We have also added a 1L cold trap which we stock with dry ice. While we have got our recovery rate up to 10L/Hr we are going through an insane a…

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