Batch Crystallization: Crystallization Data Tab

Variable Definitions, Ranges and Default Values

The following table shows a brief description of the variables appearing in this tab. The table also displays their default values and their generally acceptable range:

Variable	Default Value	Range

○ Crystallizable? Check this box to specify a component as crystallizable and set its Crystal Form.	No	Yes/No
○ Crystal Form Indicates the crystal form of a crystallizable component. Click on the list box to bring up a list of registered pure components in order to select one.	<none>	Any Pure Component
○ A Crystallization constant.	0.0	Positive
○ B Crystallization constant.	0.0	Positive
○ C Crystallization constant.	0.0	Positive
○ Component that Crystallizes Indicates the component that crystallizes. Click on the list box to bring up a list of available components in order to select one.	<none>	Any Pure Component
○ Crystallization Yield (%) The crystallization yield of the component that crystallizes.	90.0	(0,100)
○ Crystallization Heat (kcal/kg) The heat of crystallization of the component that crystallizes.	0.0	Positive

Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output

Specification Choices / Comments

The following list describes the available specification choices in this tab; for more details on how these are implemented, seeBatch Crystallization: Modeling Calculations.

•Crystallization Constants...

The constants A, B and C are used to calculate the crystallization yield of a component (usually an impurity) relative to the yield of the product component.