US 12,077,480 B2
High solids suspension fertilizer
Renil John Anthony, Lenexa, KS (US)
Assigned to Koch Agronomic Services, LLC, Wichita, KS (US)
Filed by Koch Agronomic Services, LLC, Wichita, KS (US)
Filed on Sep. 28, 2018, as Appl. No. 16/146,282.
Claims priority of provisional application 62/565,943, filed on Sep. 29, 2017.
Prior Publication US 2019/0100471 A1, Apr. 4, 2019
Int. Cl. C05B 17/02 (2006.01); C05C 11/00 (2006.01); C05D 9/02 (2006.01); C05G 3/50 (2020.01); C05G 3/60 (2020.01); C05G 3/70 (2020.01); C05G 5/27 (2020.01); C05G 5/30 (2020.01)
CPC C05B 17/02 (2013.01) [C05C 11/00 (2013.01); C05D 9/02 (2013.01); C05G 3/50 (2020.02); C05G 3/60 (2020.02); C05G 3/70 (2020.02); C05G 5/27 (2020.02); C05G 5/37 (2020.02)] 7 Claims
 
1. An aqueous liquid fertilizer composition comprising:
(a) a nutrient source comprising a source of zinc and a source of manganese and one or more sources of macronutrients, wherein the zinc is present in the nutrient source in an amount of about 15% to about 25% by weight and the manganese is present in the nutrient source in an amount of about 1% to about 10% weight based on the total weight of the source of the nutrient taken as 100% by weight, and wherein the one or more sources of macronutrients include phosphorus in a content of about 20% to about 30% by weight and nitrogen in a content of about 0.5% to about 8% by weight, based on the total weight of the source of the nutrient taken as 100% by weight,
(b) from about 0.01% to about 1% by weight of a thickener, based on the total weight of the liquid fertilizer composition taken as 100% weight, and
(c) from about 0.1% to about 10% by weight of a dispersant, based on the total weight of the liquid fertilizer composition taken as 100% weight, and
wherein the composition has a suspended solids content of at least about 30% by weight, and
wherein the composition comprises less than about 2% by weight styrene(meth)acrylic copolymer based on the total weight of the liquid fertilizer composition taken as 100% weight, and
wherein the nutrient source is provided as a powder having an average particle size of about 100 mesh to about 325 mesh, and
wherein the liquid fertilizer composition comprises about 20% to about 80% by weight of the nutrient source, based on the total weight of the liquid fertilizer composition taken as 100% by weight.