Crystallization process
AssigneeThe Lummus Company
InventorGeorge D. Suciu
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Abstract
In the crystallization of a material from a liquid solution thereof wherein normal rapid cooling produces a non-filterable solid, the mixture of material and liquid is subjected to a high shear force field to produce a filterable slurry of the material, with the mixture being subjected to the shear force either during the cooling or subsequent thereto. The process is particularly applicable to recovering nicotinamide from a supersaturated aqueous solution thereof.
Claims6
A process for recovering nicotinamide from an aqueous solution of nicotinamide, which solution when subjected to rapid cooling produces a non-filterable solid, comprising:
- rapidly cooling said solution to crystallize nicotinamide from the solution, and applying to the nicotinamide and water a high shear force field sufficient to produce a filterable slurry of the nicotinamide.
Dependencies are inferred from the claim text.