Method for producing coated fertilizer

Details Method for producing coated fertilizer Method for producing coated fertilizer

1974-12-03

1977-04-26

Spear, Jr., Frank A.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 35, 427212, C05C 502

Patent

active

040198901

ABSTRACT:
Granular slow-releasing fertilizers completely coated with water-resisting resin are produced in such a manner that the coated granules do not stick together, through one step operation by spraying a solution of the resin which has the property capable of maintaining the solution state while it is hot but turning into jelly-like gel when it is cooled, on granules of fertilizer and drying the said granules with a high speed drying hot air on the spot upon being sprayed with the solution of the resin.

REFERENCES:
patent: 3259482 (1966-05-01), Hansen
patent: 3276857 (1966-10-01), Stansbury
patent: 3372019 (1968-03-01), Fox
patent: 3388990 (1968-06-01), Maruta et al.
patent: 3734707 (1973-05-01), Seymour
patent: 3873734 (1975-03-01), Higgins et al.

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