[EN] CONTROLLED RELEASE FERTILIZERS EMPLOYING UREAFORM COMPOUNDS AND PROCESSES FOR MAKING SAME<br/>[FR] FERTILISANTS A LIBERATION REGULEE FAISANT APPEL A DES COMPOSES A BASE D'UREE-FORMALDEHYDE ET LEURS PROCEDES DE FABRICATION
申请人:NFT IND LLC
公开号:WO2005107454A2
公开(公告)日:2005-11-17
A controlled release agricultural absorbent based product including particles of an absorbent material containing capillaries/voids between 10-200 microns in cross-sectional diameter which is impregnated in an amount of 40-95 % of the capillaries/voids volume with an agriculturally beneficial material, at least including ureaform, and said beneficial material being selected from the group consisting of fertilizers, insecticides, herbicides and fungicides, being produced by a process including steps of 1) introducing water to particles of absorbent material to result in absorption of water within the absorbent material, 2) heating the absorbent particles and water to transform the water within the absorbent particles to steam, 3) introducing the absorbent particles to an agriculturally beneficial material, at least including ureaform, to saturate the beneficial material, 4) granulating the beneficial material and saturated absorbent particles to solidify and harden the mixture, resulting in the agglomeration of absorbent particles into granules, and drying the granules.