Fertilizer mixture containing nitrification inhibitor

• US 10,640,431 B2
• Filed: 12/12/2014
• Issued: 05/05/2020
• Est. Priority Date: 12/13/2013
• Status: Active Grant

• Current Assignee: Eurochem Agro GmbH
• Original Assignee: Eurochem Agro GmbH
• Inventors: Peters, Nils, Haehndel, Reinhardt
• Primary Examiner(s): Smith, Jennifer A
• Application Number:
  US15/103,827
• Publication Number:
  US 20170050894A1
• Time in Patent Office: 1,971 Days
• CPC Class Codes: C05C 1/02 Granulation apparatus B01J2/00; Pelletisation; Stabilisation; Colouring
• CPC Class Codes: C05C 3/005 Post-treatment
• CPC Class Codes: C05G 3/90 for affecting the nitrification of ammonium compounds or urea in the soil
• CPC Class Codes: C07D 231/12 with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
• CPC Class Codes: C09K 15/20 containing nitrogen and oxygen
• CPC Class Codes: Y02P 60/21 Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Abstract

The invention features a fertilizer mixture containing

• • (i) a calcium ammonium nitrate mineral fertilizer and (ii) 2-(N-3,4-dimethylpyrazole)succinic acid, or a salt thereof.

Claims

1. A fertilizer mixture comprising:

(a) as component A, a calcium ammonium nitrate mineral fertilizer which, besides ammonium nitrate and calcium carbonate and optionally water, may contain up to 15 wt %, based on the calcium ammonium nitrate mineral fertilizer without water, of further ingredients,

(b) as component B, from 100 to 10 000 ppm by weight, based on component A without water, of a salt form of 2-(N-3,4-dimethylpyrazole)succinic acid.

2. The fertilizer mixture as claimed in claim 1, wherein the salt form of 2-(N-3,4-dimethylpyrazole)succinic acid is a di-alkali metal salt.

3. The fertilizer mixture as claimed in claim 2, wherein the di-alkali metal salt is a dipotassium salt.

4. The fertilizer mixture as claimed in claim 1, characterized in that in component A, based on the calcium ammonium nitrate mineral fertilizer without water, the nitrogen content is at least 22 wt %.

5. The fertilizer mixture as claimed in claim 1, characterized in that in component A, based on the calcium ammonium nitrate mineral fertilizer without water, the calcium content is 6 to 15 wt %.

6. The fertilizer mixture as claimed in claim 1, characterized in that component A contains 0.5 to 7 wt %, based on the calcium ammonium nitrate mineral fertilizer without water, of MgO, Mg salt, or mixtures thereof.

7. The fertilizer mixture as claimed in claim 1, characterized in that component A contains 0.01 to 1 wt %, based on the calcium ammonium nitrate mineral fertilizer without water, of boron as element or in the form of boron compounds.

8. A process for producing a fertilizer mixture as claimed in claim 1 by introducing the salt form of 2-(N-3,4-dimethylpyrazole)succinic acid into the calcium ammonium nitrate mineral fertilizer and/or applying the salt form of 2-(N-3,4-dimethylpyrazole)succinic acid to the calcium ammonium nitrate mineral fertilizer.