| 单词 | fractional distillation |
| 释义 | fractional distillationnoun Chemistry.the separation of volatile components of different boiling points in a mixture by the gradual increase of temperature and the separate collection of each component. Origin of fractional distillationFirst recorded in 1855–60 Words nearby fractional distillationfracted, fraction, fractional, fractional crystallization, fractional currency, fractional distillation, fractionalize, fractional orbital bombardment system, fractionate, fractionating column, fractionation Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for fractional distillationfractional distillation nounthe process of separating the constituents of a liquid mixture by heating it and condensing separately the components according to their different boiling points a distillation in which the vapour is brought into contact with a countercurrent of condensed liquid to increase the purity of the final products Sometimes shortened to: distillation Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for fractional distillationfractional distillation A process by which a chemical compound is separated into components by distillation. In fractional distillation the compound is heated and, as each of its constituent components comes to a boil, its vapors are separated and cooled, so it can be removed in its pure form. Fractional distillation is used to refine petroleum. See also distillation. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
| 随便看 |
英语词典包含192737条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。