US 12,030,827 B2
Liquid fertilizer comprising thiosulfate
Michael Massoud Hojjatie, Tucson, AZ (US); Constance Lynn Frank Lockhart, Tucson, AZ (US); Thomas Fairweather, Dundee, OR (US); and Terry Ludwig, Phoenix, AZ (US)
Assigned to Tessenderlo Kerley, Inc., Phoenix, AZ (US)
Appl. No. 17/266,589
Filed by Tessenderlo Kerley, Inc., Phoenix, AZ (US)
PCT Filed Jul. 9, 2019, PCT No. PCT/US2019/041074
§ 371(c)(1), (2) Date Feb. 6, 2021,
PCT Pub. No. WO2020/033094, PCT Pub. Date Feb. 13, 2020.
Claims priority of provisional application 62/715,350, filed on Aug. 7, 2018.
Prior Publication US 2021/0309584 A1, Oct. 7, 2021
Int. Cl. C05G 5/20 (2020.01); C05C 3/00 (2006.01); C05C 9/00 (2006.01); C05G 1/00 (2006.01); C05G 5/23 (2020.01)
CPC C05G 5/20 (2020.02) [C05C 3/005 (2013.01); C05C 9/00 (2013.01); C05C 9/005 (2013.01); C05G 1/00 (2013.01); C05G 5/23 (2020.02)] 15 Claims
 
1. An aqueous liquid fertilizer composition having a 4 wt % to about 30 wt % nitrogen content and 8 wt % to about 27 wt % sulfur content comprising more than about 20 wt % ammonium thiosulfate, calculated as dry matter, and at least about 2 wt %, calculated as dry matter, of one other compound selected from the group consisting of a sulfite, bisulfite, urea-triazone compound and zinc sulfate hexahydrate or mixtures thereof, wherein the composition has a salt out temperature of about 0° C. or less as measured with the FFF-method.