Abstract

Nearly every chemical manufacturing operation requires the use o f separation processes in order to recover and purify the desired product. In most cases, the efficiency of the separation process has a significant impact on both the quality and the cost of the product. Because of its simplicity and broad application, distillation has become t h e standard against which a1ternative separation technologies are compared. Other separation processes based on feed component physic-chemical properties, such as crystal1ization and solvent extraction, are also used in the chemical industry. However, there are many cases that involve the bulk separation o f chemically similar components o r the removal o f components that are present at low concentrations. I n these situations t h e traditional separation techniques based on physicochemical properties have limited usefulness and may even be unworkable. For this latter class of separation problems, adsorption offers a suitable approach. This chapter provides an overview of existing Sorbex processes, describe the desirable characteristics of adsorbents, discuss some o f the unique capabilities of zeolites as adsorbents and suggest potential applications for the future.

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