Patent ID: 11926573
Assignee: SULVARIS INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A method of producing a sulphur-urea fertilizer granule, comprising the steps of:
a) preparing and maintaining molten urea at a suitable temperature for injection into a granulator;
b) preparing and maintaining a suspension of micronized sulphur particles with at least 20% water content, with a relatively uniform micronized particle size distribution, for injection into the granulator;
c) prior to injection into the granulator, combining the urea and micronized sulphur suspension, wherein the water content of the suspension cools the mixture of urea and micronized sulphur suspension, and the micronized sulphur particles substantially remain in solid state; and
d) spraying the mixture of urea and micronized sulphur suspension into a granulator using a nozzle where about 20% wt. of the water content in the mixture of urea and micronized sulphur suspension is flashed off, wherein the granulator forms micronized sulphur-urea granules with a relatively uniform distribution of urea and micronized sulphur particles.