The Recovery Of Volatile Solvents Classic Reprint

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.

The pressure is on to cut plant emissions while still maintaining a cost-effective operation. Choosing the best solvent, being aware of potential problems, and the recovery of solvents has never been so important. Traditionally, solvents had been chosen on the basis of whether they can do the job effectively and economically. However, with regulations on exposure to solvent vapors becoming more stringent, selecting the solvent that meets regulatory, efficiency, and economical criteria as early as possible in the process has become paramount. Solvent Recovery Handbook, Second Edition sets out the physical properties of the fifty most commonly used solvents. The book supplies information on their behavior during and after use, health and fire hazards, the photochemical ozone creation potential (POCP), and recovery processes including practical aspects of the design and operation of batch stills. It delivers state-of-the art coverage of every available recovery and disposal technology - including removing solvents from gas, water, and residues, separating used solvents, and drying solvents. What's more, you'll find fact-filled sections on the latest equipment, safe effective operating procedures, choosing solvents with recovery in mind, and much more. Updated and expanded, Ian Smallwood's Solvent Recovery Handbook, Second Edition hands you all the practical tools you need to efficiently and cost-effectively process harmful organic solvents after re-capture.

The current book gives an excellent insight into downstream processing technology and explains how to establish a successful strategy for an efficient recovery, isolation and purification of biosynthetic products. In addition to the overview of purification steps and unit operations, the authors provide practical information on capital and operating costs related to downstream processing.

The conventional solvents used in chemical, pharmaceutical, biomedical and separation processes represent a great challenge to green chemistry because of their toxicity and flammability. Since the beginning of “the 12 Principles of Green Chemistry” in 1998, a general effort has been made to replace conventional solvents with environmentally benign substitutes. Water has been the most popular choice so far, followed by ionic liquids, surfactant, supercritical fluids, fluorous solvents, liquid polymers, bio-solvents and switchable solvent systems. Green Solvents Volume I and II provides a throughout overview of the different types of solvents and discusses their extensive applications in fields such as extraction, organic synthesis, biocatalytic processes, production of fine chemicals, removal of hydrogen sulphide, biochemical transformations, composite material, energy storage devices and polymers. These volumes are written by leading international experts and cover all possible aspects of green solvents’ properties and applications available in today’s literature. Green Solvents Volume I and II is an invaluable guide to scientists, R&D industrial specialists, researchers, upper-level undergraduates and graduate students, Ph.D. scholars, college and university professors working in the field of chemistry and biochemistry.

The second edition of Comprehensive Biotechnology, Six Volume Set continues the tradition of the first inclusive work on this dynamic field with up-to-date and essential entries on the principles and practice of biotechnology. The integration of the latest relevant science and industry practice with fundamental biotechnology concepts is presented with entries from internationally recognized world leaders in their given fields. With two volumes covering basic fundamentals, and four volumes of applications, from environmental biotechnology and safety to medical biotechnology and healthcare, this work serves the needs of newcomers as well as established experts combining the latest relevant science and industry practice in a manageable format. It is a multi-authored work, written by experts and vetted by a prestigious advisory board and group of volume editors who are biotechnology innovators and educators with international influence. All six volumes are published at the same time, not as a series; this is not a conventional encyclopedia but a symbiotic integration of brief articles on established topics and longer chapters on new emerging areas. Hyperlinks provide sources of extensive additional related information; material authored and edited by world-renown experts in all aspects of the broad multidisciplinary field of biotechnology Scope and nature of the work are vetted by a prestigious International Advisory Board including three Nobel laureates Each article carries a glossary and a professional summary of the authors indicating their appropriate credentials An extensive index for the entire publication gives a complete list of the many topics treated in the increasingly expanding field

The aim of this book is to introduce the use of green solvents throughout chemistry and to provide a comprehensive reference for solvents currently applicable in green chemistry. The first section covers solvents in chemical perspective, and the second section is a guide to green solvents. Overall, this volume defines characteristics of green solvents and their current usage, and explores their importance ecologically and economically. It includes a full range of commercial, industrial, and academic green solvents, and discusses solvents in specific commercial and non-commercial practices. Green Solvents for Chemistry differs from other works on solvents in that only solvents for green chemistry are included along with their chemical properties and toxicological issues.