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1. (WO1987003579) PROCESS FOR PRODUCING NITROGEN FERTILIZERS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1987/003579 International Application No.: PCT/EP1986/000752
Publication Date: 18.06.1987 International Filing Date: 16.12.1986
IPC:
C05C 3/00 (2006.01) ,C05G 3/00 (2006.01) ,C05G 3/08 (2006.01)
C CHEMISTRY; METALLURGY
05
FERTILISERS; MANUFACTURE THEREOF
C
NITROGENOUS FERTILISERS
3
Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
C CHEMISTRY; METALLURGY
05
FERTILISERS; MANUFACTURE THEREOF
G
MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C0595; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
3
Mixtures of one or more fertilisers with materials not having a specifically fertilising activity
C CHEMISTRY; METALLURGY
05
FERTILISERS; MANUFACTURE THEREOF
G
MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C0595; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
3
Mixtures of one or more fertilisers with materials not having a specifically fertilising activity
08
with agents affecting the nitrification of ammonium compounds or urea in the soil
Applicants:
SKW TROSTBERG AKTIENGESELLSCHAFT [DE/DE]; Dr.-Albert-Frank-Strasse 32 D-8223 Trostberg, DE
Inventors:
SOLANSKY, Svatopluk; DE
KRISTOF, Wolfgang; DE
Agent:
WEICKMANN, H. @; Möhlstrasse 22 D-8000 München 80, DE
Priority Data:
P 35 44 399.516.12.1985DE
Title (EN) PROCESS FOR PRODUCING NITROGEN FERTILIZERS
(FR) PROCEDE DE FABRICATION D'ENGRAIS AZOTES
Abstract:
(EN) Process as described based on the use of ammonia salts containing dicyandiamide, whereby the surface of the ammonia fertilizer grain is sprayed with a molten polyethylene glycol at a temperature of 50o to 90oC, after which the dicyandiamide is applied to the grain and the granular material is cooled until the polyethylene glycol hardens again. The granular material thus produced has a slight tendency to agglomerate and to the attrition of the dicyandiamide.
(FR) Procédé ci-décrit basé sur l'utilisation de sels d'ammoniac contenant de la dicyandiamide, dans lequel la surface des granules d'engrais d'ammoniac est enrobée par projection d'un glycol de polyéthylène fondu à une température de 50o à 90oC, après quoi on leur applique la dicyandiamide; les granulés sont ensuite refroidis jusqu'à durcissement du glycol de polyéthylène. Les granulés ainsi produits ont une légère tendance à s'agglomérer et à provoquer l'enlèvement par attrition de la dicyandiamide.
Designated States: DK, FI, NO
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
FI873538NO19873340EP0250509