Fertilizer product and process for making and using it

Details Fertilizer product and process for making and using it Fertilizer product and process for making and using it

C - Chemistry, Metallurgy

05

C

71/23, 71/47

C05C 9/02 (2006.01) C05C 9/00 (2006.01)

Patent

CA 1208451

IMPROVED FERTILIZER PRODUCT AND PROCESS FOR MAKING AND USING IT ABSTRACT A process for making controlled release fertilizer product containing an increased amount of sustained- release nitrogen includes the step of mixing a partly water soluble thermoplastic binder, and urea-formaldehyde condensate and a pH modifier. The amount of pH modifier should be sufficient to bring the pH of the shaped fertil- izer product to the range from about 6 to about 12. The mixture is subjected to such conditions including temperature and pressure so as to produce a shaped fer- tilizer product. The resulting shaped fertilizer pro- duct includes approximately the same amount of sustained- release nitrogen as the urea-formaldehyde condensate in the mixture.

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