Chemistry: fertilizers – Processes and products – Organic material-containing
Patent
1999-09-17
2000-06-27
Langel, Wayne
Chemistry: fertilizers
Processes and products
Organic material-containing
71 18, 71 27, 71 28, 71 31, 71 33, 71 34, 71 63, 71 6407, C05G 302, C05G 500
Patent
active
060802219
ABSTRACT:
A method of coating fertilizer particles exhibiting porous surfaces under vacuum to form attrition resistant controlled release particulate fertilizers, by drawing a vacuum on the fertilizer particles and applying thereto a water insoluble fluid resin at about atmospheric pressure, so that the fluid resin is forced into the porous surfaces of the fertilizer particles by differences in pressure, and then hardening the fluid resin to form a solid resin, tenaciously bonded onto, and into, the porous surfaces of the fertilizer particles. Porous surfaced water soluble, slow releasing and sulfur coated, fertilizers may be effectively coated. Granular, briquetted, compacted and other special shaped fertilizers may also be effectively vacuum coated to provide controlled release products. Pesticides may also be effectively included in these attrition resistant products. Fertilizers are provided which exhibit substantially improved resistance to attrition.
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Agri-Nutrients Technology Group, Inc.
Langel Wayne
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