Method for granulating powder

A method for granulating powder in a co-rotating twin screw extruder comprising separate zones within the co-rotating twin screw extruder including a conveying zone, a mixing zone, a granulating zone, a drying zone, and a discharging zone, the method comprising:

• continuously introducing the powder and a granulating fluid to the conveying zone of the co-rotating twin screw extruder followed by the mixing zone of the co-rotating twin screw extruder;
• passing the powder and the granulating fluid through the granulating zone of the co-rotating twin screw extruder to form wet granules;
• passing the wet granules through the drying zone of the co-rotating twin screw extruder;
• passing dried granules obtained from the drying zone through the discharge zone of the co-rotating twin screw extruder;
• and
• continuously discharging the granules from the co-rotating twin screw extruder wherein the co-rotating twin screw extruder is not a fluid bed processor, wherein the granulation zone and the drying zone of the co-rotating twin screw extruder include one or more fractional lobe elements, wherein the granulation zone is located upstream of the drying zone and the discharge zone and downstream of the mixing zone, and wherein each of mixing zone, the granulation zone, the drying zone, and the discharge zone are formed, separately, in order, by the co-rotating twin screw extruder.