Process for making granules containing urea as the main componen

Details Process for making granules containing urea as the main componen Process for making granules containing urea as the main componen

1982-06-18

1985-02-19

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

Organic material-containing

71 30, 427182, 427213, C05G 300, C05C 900

Patent

active

045003360

ABSTRACT:
A process for making granules containing urea as the main component by prilling or granulating a urea melt or an aqueous urea solution, which melt or solution may contain one or more other fertilizers, such as ammonium sulphate, ammonium dihydrogen phosphate and diammonium hydrogen phosphate, in solution and/or suspension. According to the invention, a water-soluble aluminum salt is added to the melt, solution or suspension to be prilled or granulated. Preferably the aluminum salt is added in a quantity equivalent to at least 0.1% by weight of Al.sub.2 O.sub.3, calculated on the solid content of the melt, solution or suspension.

REFERENCES:
patent: 4219589 (1980-08-01), Niks et al.
Derwent Abstract 17560, Wolf, 12-10-80.

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