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

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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.
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结晶是工业与实验室分离的最古老的单元操作.几乎所有的分离工艺都涉及进料的二次成型,所选用的工艺条件必须允许相对容易的两种或多种相态分离.这也是结晶的要求,在结晶器设计与操作过程中,必须要考虑到固体产品也具有其它化学性质.图一描述了结晶的工艺、功能、产品与现象.
1.1 功能 图一列出了结晶可以实现的几个可能的功能:分离、浓缩、提纯、固化与分析.举例如下.