Synthetic gypsum fertilizer product and method of making
AssigneeSul4R-Plus, 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
Claims23
A method of producing a fertilizer comprising:
- feeding synthetic gypsum to a forming device;
- feeding a binder composition comprising lignosulfonate having 18% to 40% solids to the forming device;
- and
- forming the material fed to the forming device to a mean pellet size guide number (SGN) from approximately 100 to approximately 500, wherein the resulting pelletized synthetic gypsum has a crush strength from approximately 2 lbf to approximately 12 lbf.
A fertilizer comprising:
- pellets, the pellets comprising synthetic gypsum and a binder composition comprising lignosulfonate, wherein the binder composition initially has 18% to 40% solids at the time of contact with the synthetic gypsum, the pellets further comprising mean pellet SGN from approximately 100 to approximately 500, wherein the pellets have a crush strength from approximately 2 to approximately 12 lbf.
A process for producing a fertilizer comprising:
- feeding synthetic gypsum to a dryer;
- feeding dried synthetic gypsum and a binder composition comprising lignosulfonate having 18% to 40% solids to a mixer;
- mixing the material fed to the mixer;
- feeding the mixed material to a forming device;
- pelletizing the material fed to the forming device;
- feeding the pelletized material to a dryer;
- drying the pelletized material;
- feeding the dried pelletized material to a screener;
- and
- screening the material fed to the screener to a mean pellet size guide number (SGN) from
- approximately 100 to approximately 500, wherein the resulting pelletized synthetic gypsum has a crush strength from approximately 2 lbf to approximately 12 lbf.
Dependencies are inferred from the claim text.