Patent · US Active

Spray nozzle for producing a urea-sulfur fertilizer

US12221398B2 · kind B2 · utility

0Cited by

15References

18Claims

0Family size

Assignees

thyssenkrupp Fertilizer Technology GmbH · DE
thyssenkrupp AG · DE

Inventors

Matthias Potthoff · Dortmund, DE
Harald Franzrahe · Dortmund, DE
Thomas Johner · Wuppertal, DE
Luc Vanmarcke · Eeklo, BE

Key dates

Filing date	Jun 7, 2019
Grant date	Feb 11, 2025
Priority date	—
Expiry date	Feb 27, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05B15/18
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A spray nozzle for production of urea fertilizer granules and/or urea-sulfur fertilizer granules has a conveying channel and an atomizing gas channel. The conveying channel has at least one separating pin and the atomizing channel has at least one swirl element. The swirl element has inserts, cutouts and moving and fixed elements. The disclosure also sets out a fluidized bed granulator with a spray nozzle for production of a urea-sulfur fertilizer, a process for producing a urea-sulfur fertilizer, and the use of the spray nozzle for production of fertilizer granules.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.