... continuous filtration for the separation of suspended, fast draining, crystalline, granular or fibrous solids from the liquid phase. the solids can ... , adipic acid, sodium chloride, iron sulphate, sodium sulphate, copper sulphate, sodium bichromate. • fertilisers : ammonium sulphate, potash, urea, calcium nitrate, potassium sulphate. • food stuff animal feeds : extraction ...