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ILLUSTRATED HANDBOOK OFChemical Separations

ILLUSTRATED HANDBOOK OFChemical Separations

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    Chemical separations is a method used in chemistry to purify substances or to isolate them from other substances, for either preparative or analytical purposes. In industrial applications the ultimate goal is the isolation of a product of given purity, whereas in analysis the primary goal is the determination of the amount or concentration of that substance in a sample. This illustrated handbook provides detailed coverage of the principles, equipment, and techniques involved in the separation methods. It discovers all major categories of separation, including those involving phase changes, extraction, chromatography, ion-exchange resins, electric fields, flotation, membranes, and others.

Separation processes are essential to the chemical, petroleum refining, and materials processing industries. The word ?separation,? however, refers to different processes and functions for different industries. Separation processes comprise a large portion of the activity in the chemical and petrochemical industries. In the forest products industry, separation ranges from separating wood chips of different sizes to converting black liquor for reuse. In the aluminum and steel industries, as well as the metal casting and glass industries, the most important area of separation technology is separation of different types of scrap, sand, and cullet. Finding common ground among these definitions of separation processes or technologies is a difficult task. Separation processes can be thought of in general terms as performing similar functions in all industries. In industrial applications the ultimate goal is the isolation of a product of given purity, whereas in analysis the primary goal is the determination of the amount or concentration of that substance in a sample. In principle it is always more convenient to carry out quantitative determinations directly on portions of the original sample. In cases where the analytical methods available are not sufficiently selective to permit this direct approach, it is necessary to employ preliminary separations to reduce the concentration of, or to remove completely, those substances which interfere in the final estimation.

Illustrated Handbook of Chemical Separations aims to present a comprehensive treatment of both fundamental aspects and practical applications of chemical separations, purification and related techniques. This book outlines several applications of process techniques in the chemical industry, reviews the available processes for the field, and discusses the huge potential of this technology in chemical processes. The main objective of this Illustrated Text is to familiarize students with the fundamental principles of separation processes used in analytical chemistry such as various extraction techniques, gas and liquid chromatography, size and ion chromatography and electrophoresis. In the chemical industry, many separation technologies are already highly developed available for most processes. However, these separation technologies could be improved in terms of energy efficiency, raw materials use, or cost effectiveness. In addition, changing technologies and changing customer demands continually create new needs for the chemical industry. Opportunities for improving separation technologies for the chemical industry are identified and discussed in this Text.