Back to results
US 12,291,493 B2Granted
Organic chelated zinc coated fertilizer for better crops and soil health
AssigneeSabic Agri-Nutrients Company
InventorsRajamalleswaramma Koripelly, Satish Burla, Samik Gupta
Life of this patent
Estimating the term…
Abstract
Organic chelated zinc coated fertilizer core, methods for their use, and production thereof, are disclosed. The organic chelated zinc coating can contain 0.02 wt. % to 0.5 wt. % or more, based on the total weight of the coated fertilizer, of zinc from the organic chelated zinc. The coating can optionally contain or exclude a binder. An oil based coating can be at least partially positioned between the surface of the fertilizer core and the organic chelated zinc coating.
Claims19
A coated fertilizer comprising:
- a fertilizer core comprising a urea-based fertilizer;
- and
- a coating comprising an organic chelated zinc that covers at least a portion of a surface of the fertilizer core,
- wherein the coated fertilizer comprises 0.02 wt. % to 0.5 wt. % of zinc from the organic chelated zinc relative to total weight of the coated fertilizer,
- wherein the coating comprising an organic chelated zinc comprises one or more binders having a weight ratio of the one or more binder to the organic chelated zinc of 1:1 to 2:1;
- and
- wherein:
- i) an oil based coating is at least partially positioned between the surface of the fertilizer core and the coating comprising an organic chelated zinc;
- and/or
- ii) the coating comprising an organic chelated zinc is a powder coating comprising organic chelated zinc particles with a mean average diameter of 10 to 350 microns.
7 more elements
Dependencies are inferred from the claim text.