Nitrification inhibitors, and the use of polyacids which contain a nitrification inhibitor for the treatment of inorganic fertilizers

US6488734B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Thomas Barth · Ludwigshafen, DE
• Norbert Rieber · Mannheim, DE
• Randall Evan Gold · Schifferstadt, DE
• Jurgen Dressel · Schifferstadt, DE
• Klaus Erhardt
• Klaus Horchler von Locquengh · Schifferstadt, DE
• Edgar Leibold · Bischofswerda, DE
• Stefan Rittinger · Mannheim, DE

Key dates

• Filing date: Oct 6, 2000
• Grant date: Dec 3, 2002
• Expiry date: Nov 7, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S71/902
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The use of inorganic or organic polyacids for the treatment of inorganic fertilizers, in particular the use of the polyacids as a mixture with at least one nitrification inhibitor for the treatment of inorganic fertilizers; the use of selected pyrazole derivatives as nitrification inhibitor in inorganic fertilizers and also as stabilizers of liquid manure or liquid fertilizer formulations, as well as the corresponding treated inorganic fertilizers per se; and novel pyrazole derivatives which can be used as nitrification inhibitors in inorganic fertilizers and also as stabilizers of liquid manure or liquid fertilizer formulations are described.