Patent ID: 7387770
Filing Date: 2008-06-17
Classification: C01G,Y10S

Abstract:
1. A process for manufacturing liquid ferric sulfate comprising: (a) combining and agitating in one or more closed reaction vessels streams of a reaction mixture of (b) heating said mixture to a reaction temperature while agitating the reactants and while controlling the temperature and pressure; (c) agitating and maintaining said mixture at a reaction temperature and pressure until the reaction is substantially complete; (d) separating the resultant crude reaction product stream into an aqueous ferric sulfate rich stream and a solids-rich stream; (e) feeding the ferric sulfate rich stream countercurrently to a stream of finely divided ferric oxide and recycled solids stream in a subsequent downstream reaction; and (f) collecting said aqueous ferric sulfate solution as a product of the process from the reaction of a series of reactions.