The calcium citrate is then washed, heated, and filtered to remove any number of the contaminants.
Depending on the specific design of the purification scheme, filters can be placed before the first reaction with calcium carbonate, in series between the two precipitation reactions or in any other combination that works. Also, it is important to choose the best kind of filter for what is being removed. For simplicity, the filters here will remove larger contaminants first (sucrose and salts) and the smaller contaminants later.
Ex. Plate filter, Rotary presses, rack-and-frame presses
Calcium Citrate as a precipitate plus contaminantsCalcium Citrate, biomass, waterPurification of Citric acid