Patent ID: 11945919
Assignee: EVONIK OPERATIONS GMBH
Field: Other special machines (Mechanical engineering)
Classification: CPC C  B | IPC B  C

Claim 2:
3. The method according to claim 1, wherein cooling is performed until clouding of the solution starts, wherein cooling is continued at least until turbidity does not further increase, wherein cooling is continued after onset of clouding at a rate in a range of 0.05° C./min to 5° C./min or cooling of the solution is stopped at the onset of clouding for at least 5 min and then the solution is cooled at a rate in a range of 0.05° C./min to 5° C./min or cooling of the solution is continued for up to 3° C. after the onset of clouding and then stopped for at least 5 min and then the solution is cooled at a rate in a range of 0.05° C./min to 5° C./min.