英语翻译Crystallization is one of the oldest unit operations in

英语翻译
Crystallization is one of the oldest unit operations in the portfolio of industrial and/or laboratory separations.Almost all separation techniques involve forma-tion of a second phase from a feed,and processing conditions must be selected that allow relatively easy segregation of the two or more resulting phases.This is also a requirement for crystallization,and there are a variety of other properties of the solid product that must be considered in the design and operation of a crystallizer.Interactions among process,function,product,and phenomena important in crystallization are illustrated in Figure 1.
1.1.Function.Figure 1 lists several possible functions that can be achieved by crystallization:separation,concentration,purification,solidification,and analysis.A few examples follow.