Patent · US Expired

Ammonium sulfate nitrate

US6689181B2 · kind B2 · utility

15Cited by

9References

23Claims

0Family size

Assignee

HONEYWELL INTERNATIONAL INC. · US

Inventors

Ronald Highsmith · Midlothian, US
James A. Kweeder · Chester, US
Steven Correale · Chester, US

Key dates

Filing date	Oct 4, 2001
Grant date	Feb 10, 2004
Priority date	—
Expiry date	Feb 28, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC05C1/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Ammonium sulfate nitrate composite materials useful as fertilizers having desirable levels of nitrate ions, superior stability against detonation, higher density, greater resistance to moisture, and a method for their manufacture. The ammonium sulfate nitrate composites have as essential constituents ammonium sulfate and the NH4SO4.2(NH4NO3) double salt with less than 5 wt. % in combined total of the more hazardous NH4SO4.3(NH4NO3) double salt and ammonium nitrate.

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