Granular fertilizer with a decomposable coating and process...

Details Granular fertilizer with a decomposable coating and process... Granular fertilizer with a decomposable coating and process...

C - Chemistry, Metallurgy

05

G

71/47

C05G 3/00 (2006.01)

Patent

CA 1295849

ABSTRACT OF THE DISCLOSURE A granular fertilizer with a coating which is decomposable by soil microorganisms, preferably a coating which is decomposed and degraded both on the surface layer of the soil and in the soil, and a process for producing the granular fertilizer , which coating contains a poly 3-hydroxy-3-alkylpropionic acid as an indispensable ingredient, and if necessary, a resin or a low-molecular resin and further, if necessary, an inorganic or organic powder, and which process comprises adding an organic solvent solution of the poly 3-hydroxy-3-alkylpropionic acid, and if necessary, the resin, and if necessary the powder (dispersed in the solution) to a granular fertilizer in fluided state in the form of spray, and when added, blowing a high speed hot air stream onto the fertilizer to thereby instantaneously remove the solvent and also dry the resulting fertilizer.

543441

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