Process for the crystallization of sterically hindered compounds
AssigneeAmersham Health AS
InventorJan Cervenka
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Abstract
A process for the crystallisation of a sterically hindered organic compound from a saturated or supersaturated solution of said compound in a solvent therefor, characterised in that crystallisation is effected under elevated pressure at a temperature above the boiling point of said solution at atmospheric pressure and up to the boiling point of said solution at said elevated pressure.
Claims8
In a process for the crystallization of a sterically hindered organic compound form a saturated or supersaturated solution of said compound in a solvent therefor, the improvement comprising crystallizing said compound under elevated pressure at a temperature at least 10° C. above the boiling point of said solution at atmospheric pressure (1 bar) and up to the boiling point of said solution at said elevated pressure.
Dependencies are inferred from the claim text.