Free-flowing granular urea nutrient supplements
AssigneeUnited States Gypsum Company
InventorsKenneth R. Watkins, Michael L. Bolind
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AssigneeUnited States Gypsum Company
InventorsKenneth R. Watkins, Michael L. Bolind
Estimating the term…
A homogeneous, free-flowing urea containing composition which has particular utility as an animal feed supplement or a fertilizer material and an improved process for preparing same are disclosed. In the process urea and particular forms of calcium sulphate are intimately mixed, optionally with calcium phosphate and one or more desired additives, and pelletized or granulated as by compression compaction. In one embodiment, micronutrients are blended into the urea-calcium sulphate mixture before compaction and the granules so produced may be subsequently utilized as a fertilizer supplement or in combination with primary nutrients as a complete fertilizer. In a second embodiment, the urea-calcium sulphate constitute an animal feed supplement to be blended with other, non-hygroscopic, nutrients such as calcium phosphate and the like in forming a silage or complete animal feed.
A method of making a nutrient composition containing urea in granular, substantially free-flowing form consisting essentially of the steps of:
Dependencies are inferred from the claim text.