The Recovery Of Volatile Solvents Classic Reprint PDF Download

Excerpt from The Recovery of Volatile Solvents Among the many applications of chemical engineering to the industries, that of the recovery of volatile solvents is among the most recent. This is due to several facts. In the first place the industries making use of solvents in appreciable amounts were up to within recent years of very limited extent, both as to numbers and as to size, and in the second place, the increasing cost of the solvents themselves as well as their increasing scarcity in many cases has only recently forced the industries to attempt their recovery. There has also arisen a new field in which the methods of solvent recovery are applicable which was not known a few years ago, that of the recovery of gasolene from natural gas. In view of the newness of the industry it is therefore not surprising that there has so far appeared no book dealing exclusively with this important subject, but it is rather surprising to find that the technical literature is full of references to it. The author has been able to make a search of the literature of the last forty years and has found, especially in the patent literature, a great mass of information to do with this subject, the greater part of which is included in the abstract of literature which goes to make up a portion of this volume. He believes from his experience in this field, that this portion of the book will be of the very greatest aid to engineers in connection with their design of solvent recovery apparatus, especially in connection with the search of the previous art in making patent applications. He has been very much surprised to find that, in many cases, devices that he believed to be new had been anticipated many years before. In fact he believes that so far as basic principles of solvent recovery are concerned, there is very little opportunity for inventors in this field and that future improvements in solvent recovery must lie largely in design of suitable apparatus and in improved applications of old principles. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.