Patent · US Active

Method for the manufacture of a urea-based particulate material containing elemental sulphur

US11572318B2 · kind B2 · utility

0Cited by

13References

13Claims

0Family size

Assignee

YARA INTERNATIONAL ASA · NO

Inventors

Francois Ledoux · Cormeilles-en-Parisis, FR
Filip Colpaert · Zwijnaarde, BE

Key dates

Filing date	Mar 23, 2021
Grant date	Feb 7, 2023
Priority date	—
Expiry date	Jun 22, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC05D9/00
WIPO fieldFood chemistry
WIPO sectorChemistry

Abstract

This invention relates to a method for the manufacture of a homogeneous, solid, particulate, urea-based material comprising elemental sulphur. The invention further relates to a homogeneous, solid, particulate urea-based material comprising small elemental sulphur phases in a urea-based base material and formed by an accretion process. The product is in particular suitable as a fertilizer.

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