Urea-formaldehyde granular fertilizer

Details Urea-formaldehyde granular fertilizer Urea-formaldehyde granular fertilizer

1980-01-23

1981-07-28

Bashore, S. Leon

Chemistry: fertilizers

Processes and products

Organic material-containing

71 28, 71 29, 71 61, 71 64G, 71DIG1, C05F 1100

Patent

active

042808308

ABSTRACT:
A free-flowing granular fertilizer composition and a process for its preparation in which the granules comprise expanded, substantially oil-free coffee grounds as a carrier coated and impregnated with a urea-formaldehyde condensation product. The condensation product has from 1 to 3 moles of urea for each mole of formaldehyde and the composition has at least 15% of the total nitrogen in cold water insoluble form.

REFERENCES:
patent: 93607 (1869-08-01), Fish
patent: 2347730 (1951-04-01), Arnold et al.
patent: 2867521 (1959-01-01), Jeffreys
patent: 3076700 (1963-02-01), Renner
patent: 3252785 (1966-05-01), Hoblit
patent: 3497345 (1970-02-01), Duyfies
patent: 3640696 (1972-02-01), Goldmann

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