公开(公告)号：EP4368577A1

公开(公告)日：2024-05-15

申请号：EP22383073.8

申请日：2022-11-08

申请人： OXOLIFE, S.L.

发明人： ARBAT BUGIÉ, Agnès ,  TORRES FERRAZ, Rosa ,  BESSA BELLMUNT, Jordi ,  TAMAYO HARO, Abel ,  CANALS ALMAZÁN, Ignacio

IPC分类号： C01G41/00 ,  A61K33/00

CPC分类号： C01G41/00 ,  C01P2006/8020130101 ,  C01P2002/8220130101 ,  A61K33/00 ,  C01P2006/8220130101

摘要： The present invention provides a process for preparing tungsten (VI) salts hydrates, the process comprising (a) Preparing a tungsten (VI) salt in an alkaline aqueous solution; (b) Filtering the aqueous solution at a temperature at which the tungsten (VI) salt remains dissolved; (c) Precipitating the tungsten (VI) salt hydrate from the filtrate resulting from step (b); (d) Filtering; (e) Washing the resulting filter cake with a water-miscible solvent; and (f) Drying the washed cake under conditions that allow the removal of the water-miscible solvent.
The resulting salts show a level of impurities and solvents so low that they are suitable in the fields of pharmacy, veterinary and dietary.