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UREA PARTICLES, METHODS OF MANUFACTURE, AND USES

20170113977 ยท 2017-04-27

    Inventors

    Cpc classification

    International classification

    Abstract

    The disclosure relates to compositions comprising urea particles. The disclosure further provides methods of manufacturing the urea particles and their uses.

    Claims

    1. A composition comprising urea wherein the urea is in the form of urea particles having a size from greater than about 15 SGN to less than about 200 SGN.

    2. The composition of claim 1, wherein the urea particles have a size from greater than about 80 to less than about 200 SGN.

    3. The composition of claim 1, wherein the urea particles have a size from greater than about 130 to less than about 200 SGN.

    4. The composition of claim 1, wherein at least 50% of urea particles have the described size.

    5. A method of making urea particles comprising the steps of: (a) providing urea particles having a size greater than about 200 SGN; (b) optionally conditioning the urea particles provided in step (a); (c) cracking the urea particles having a size greater than about 200 SGN to obtain urea particles having a size from greater than about 15 SGN to less than about 200 SGN.

    6. The method of claim 5, wherein the urea particles in step (a) have size from greater than about 200 SGN to less than about 450 SGN.

    7. The method of claim 5, wherein the urea particles in step (a) have a size greater than 200 SGN.

    8. The method of claim 5, wherein the urea particles in step (c) have a size from greater than 15 SGN to less than 200 SGN.

    9. The method of claim 5, wherein at least 50% of the urea particles provided in step (a) have the described size.

    10. The method of claim 5, wherein at least 50% of the urea particles obtained in step (c) have the described size.

    11. The composition of claim 1, wherein the urea particles are used in animal feed.

    12. The composition of claim 1, wherein the urea particles are used in plant fertilizer.

    13. The method of claim 4, further comprising (d) formulating the urea particles from step (c) into an animal feed.

    14. The method of claim 5, further comprising (d) formulating the urea particles obtained from step (c) into a plant fertilizer.

    15. The method of claim 5, wherein the urea particles in step (a) are coated.

    16. The method of claim 5, further comprising (d) coating the urea particles obtained in step (c).

    17. The method of claim 5, wherein the urea particles obtained in step (c) are in substantially free-flowing form.

    18. An animal feed comprising a homogenous mixture of urea particles and another animal feed ingredient, wherein the animal feed is free flowing and at least 50% of the urea particles have a size great than 15 SGN and less than 200 SGN.

    19. The animal feed of claim 18, wherein the animal ingredient is a protein.

    20. The animal feed of claim 19, wherein the urea particles are coated with a fat.

    Description

    EXAMPLES

    [0040] The following example is provided for illustrative purposes only and is not intended to limit the scope of the invention.

    Example 1

    [0041] A batch of 100 kg urea having a particle size of about 280 SGN size was cracked for about 15 to 30 seconds to obtain urea particles having a size less than 200 SGN wherein at least 50% of the cracked urea particles have a size less than 200 SGN.