fractionating
41Mass production — This article is about large scale production. For the Iggy Pop piece, see The Idiot (album). For the American funk band, see Mass Production (band). Mass production (also flow production, repetitive flow production, series production, or serial… …
42Dalton's law — For the law of stoichiometry, see Law of multiple proportions. In chemistry and physics, Dalton s law (also called Dalton s law of partial pressures) states that the total pressure exerted by a gaseous mixture is equal to the sum of the partial… …
43Subduction — In geology, a subduction zone is an area on Earth where two tectonic plates meet and move towards one another, with one sliding underneath the other and moving down into the mantle, at rates typically measured in centimeters per year. An oceanic… …
44NaK — For other meanings, see Nak (disambiguation). NaK Identifiers CAS number …
45Raschig ring — Raschig rings are pieces of tube (approximately equal in length and diameter) used in large numbers as a packed bed within columns for distillations and other chemical engineering processes. They are usually ceramic or metal and provide a large… …
46Still — For other uses, see Still (disambiguation). A still is a permanent apparatus used to distill miscible or immiscible (eg. steam distillation) liquid mixtures by heating to selectively boil and then cooling to condense the vapor. Stills have been… …
47Column still — Legend: A. Analyzer B. Rectifier 1. Wash 2. Steam 3. Liquid out 4. Alcohol vapour 5. Recycled less volatile components 6. Most volatile components 7. Condenser A column still, also called a continuous still, patent still or Coffey still, is a… …
48Polybius square — In cryptography, the Polybius square, also known as the Polybius checkerboard, is a device invented by the Ancient Greek historian and scholar Polybius, described in [http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Polybius/10*.html#45.6 Hist.… …
49Magic (cryptography) — Magic was an Allied cryptanalysis project during World War II. It involved the United States Army s Signals Intelligence Section (SIS) and the United States Navy s Communication Special Unit. [1] Contents 1 Codebreaking 1.1 RED …
50Dry distillation — is the heating of solid materials to produce gaseous products (which may condense into liquids or solids). The method may or may not involve pyrolysis/thermolysis. The products are condensed and collected. This method usually requires higher… …
