152751-57-0 → 845273-93-0

Participants

Reaction Conditions

Reaction Steps

Sevelamer hydrochloride (1.1 Kg) was added into 15.5 L solution of sodium bicarbonate (1.1 Kg NaHCO3 in 14.3 L water). The obtained mixture was stirred at 60-65° C. for 4 hrs. The obtained material was filtered by centrifuge filter. The obtained wet cake was added into 15.5 L solution of sodium bicarbonate (1.1 Kg NaHCO3 in 14.3 L water) and stirring was maintained at 60-65° C. for 4 hrs. The material was filtered by centrifuge filter assembly and obtained wet cake was stirred in 11 L water for 1 hr at 60-65° C. The material was filtered by centrifuge filter. The washings of the wet cake with water were repeated thrice at 60-65° C. The obtained wet cake was dried in air tray dryer (ATD) at about 90-100° C. for 30-36 hrs and LOD was checked after every five hours till LOD was in the range of 5 to 10% to get Sevelamer carbonate (0.995 Kg).

Provenance & Evidence