Reflux Still Designs

For neutral spirits you want a reflux condenser, so that the falling precondensate washes the rising vapour, reducing the water and impurity content, giving a cleaner, safer, and higher purity product. The more contact you can achieve between the liquid & vapour, the cleaner and purer the product will be. To do this, increase the reflux ratio (the ratio of liquid falling to vapour rising) and the surface area that it is occuring over. A reflux can be made by packing the upper section of the column with inert packers (eg marbles (OK), rachig rings (better), or best - stainless steel pot cleaners (the ones that look like little springs, NOT the fine weave ones, or God forbid, those already soaped ready for use)), and cooling them by wrapping the cooling water hose around the outside, or passing a couple of cooling lines through the top of the column. Even better is to have either a separate condensor above them, or best - totally condense all the vapour above the packing, divert some to keep, and return the rest to the top of the packing.     This page last modified Tue, 20 Jan 2015 20:51:05 -0800