Synthetic gypsum fertilizer product and method of making
AssigneeCharah, LLC
InventorsTerrell Dallas Ginn, Danny Lynn Gray
Life of this patent
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Abstract
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
Claims34
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.
A fertilizer comprising:
- a plurality of extruded pellets, the plurality of extruded pellets comprising synthetic gypsum and a binder composition, wherein the synthetic gypsum and the binder composition are mixed prior to extrusion, the pellets further comprising mean pellet SGN from approximately 150 to approximately 300, wherein pellets have a crush strength from approximately 2 to approximately 12 lbf.
A method of producing a fertilizer comprising:
- feeding synthetic gypsum to a mixing device;
- feeding a binder composition to the mixing device, wherein the binder composition comprises starch or a starch derivative;
- 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.
An extruded fertilizer product prepared by a process comprising the steps of:
- 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.
An extruded fertilizer product prepared by a process comprising the steps of:
- feeding synthetic gypsum to a mixing device;
- feeding a binder composition to the mixing device, wherein the binder composition comprises starch or a starch derivative;
- 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.
Dependencies are inferred from the claim text.