SYNTHETIC GYPSUM FERTILIZER PRODUCT AND METHOD OF MAKING

摘要

Embodiments of the invention are directed to pelletized synthetic gypsum and methods and systems for producing pelletized synthetic gypsum. Synthetic gypsum is combined with a binder composition and pelletized to a desired size. The binder composition may include lignosulfonate. Additives may be included in the pellets such as various plant nutrients and micro-nutrients. An additive may include elemental sulfur. The resulting pellets may have a mean pellet size guide number (SGN) from approximately 150 to approximately 300 and a crush strength from approximately 2 lbf to approximately 12 lbf

主权项

1. A method of producing a fertilizer comprising:
feeding synthetic gypsum to a mixing device; feeding a binder composition to the mixing device; mixing the synthetic gypsum and binder composition to form a mixture; feeding the mixture to a forming device, wherein the forming device comprises an extruder; and forming the mixture into pellets having a mean pellet size guide number (SGN) from approximately 150 to approximately 300, wherein the resulting pelletized synthetic pellets have a crush strength from approximately 2 lbf to approximately 12 lbf.