Manufacturers today use many different agglomeration methods, which depend on the materials used, the desired final product, and marketing concerns. This column looks at examples from the dry detergent industry.
First of all, the manufacturer may have to convert slurry detergent into a dry solid. Typically, this is done by spray drying. While it’s not agglomeration in the classic sense, spray drying does produce a minigranular solid end product, often in the form of a hollow bead. These beads can make up a powdered detergent that’s used as is, with a specific quantity being measured into the dishwasher or washing sink.