ES2182197T3 - Procedimiento para la preparacion de granulados de fertilizantes de urea que contienen diciandiamida. - Google Patents

Procedimiento para la preparacion de granulados de fertilizantes de urea que contienen diciandiamida.

Info

Publication number
ES2182197T3
ES2182197T3 ES98118736T ES98118736T ES2182197T3 ES 2182197 T3 ES2182197 T3 ES 2182197T3 ES 98118736 T ES98118736 T ES 98118736T ES 98118736 T ES98118736 T ES 98118736T ES 2182197 T3 ES2182197 T3 ES 2182197T3
Authority
ES
Spain
Prior art keywords
dicyanodiamide
granulates
melt
containing urea
urea
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES98118736T
Other languages
English (en)
Inventor
Heinz Lange
Hans-Joachim Wachsmuth
Wolfgang Dr Kristof
Werner Elbe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKW Stickstoffwerke Piesteritz GmbH
Original Assignee
SKW Stickstoffwerke Piesteritz GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SKW Stickstoffwerke Piesteritz GmbH filed Critical SKW Stickstoffwerke Piesteritz GmbH
Application granted granted Critical
Publication of ES2182197T3 publication Critical patent/ES2182197T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C7/00—Fertilisers containing calcium or other cyanamides
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

SE DESCRIBE UN PROCEDIMIENTO PARA LA PREPARACION DE GRANULADOS DE ABONOS DE UREA QUE CONTIENEN DICIANDIAMIDA, EN EL CUAL A) SE INTRODUCE EN UNA MASA DE UREA POBRE EN AGUA Y BIURET DE 3 A 10 % EN PESO DE DICIANDIAMIDA CON RELACION AL PESO DE LA PASTA DE UREA, Y ESTA PASTA SE MEZCLA DE MANERA TURBULENTA, B) A CONTINUACION LA PASTA DE UREA QUE CONTIENEN DICIANDIAMIDA SE CALIENTA A UNA TEMPERATURA DE 120 A 140° C EN UN GRANULADOR DE LECHO FLUIDIZADO SE PULVERIZA SOBRE PARTICULAS DE UREA QUE CONTIENEN DICIANDIAMIDA CON LA AYUDA DE UNA TOBERA, Y LOS GRANULADOS QUE SE FORMAN EN EL LECHO FLUIDIZADO SE SEPARAN A UNA TEMPERATURA DE 70 A 90° C. DE ESTA MANERA SE PUEDEN PREPARAR CON UN GASTO BAJO EN CUANTO A TECNOLOGIA Y ENERGIA GRANULADOS DE UREA HOMOGENEOS QUE CONTIENEN DICIANDIAMIDA CON UN EFECTO INHIBIDOR ALTO DE NITRIFICACION Y PROPIEDADES EXCELENTES DE RESISTENCIA Y DE ALMACENAMIENTO.
ES98118736T 1997-10-08 1998-10-05 Procedimiento para la preparacion de granulados de fertilizantes de urea que contienen diciandiamida. Expired - Lifetime ES2182197T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19744404A DE19744404A1 (de) 1997-10-08 1997-10-08 Verfahren zur Herstellung von Dicyandiamid enthaltenden Harnstoff-Düngemittel-Granulaten

Publications (1)

Publication Number Publication Date
ES2182197T3 true ES2182197T3 (es) 2003-03-01

Family

ID=7844920

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98118736T Expired - Lifetime ES2182197T3 (es) 1997-10-08 1998-10-05 Procedimiento para la preparacion de granulados de fertilizantes de urea que contienen diciandiamida.

Country Status (4)

Country Link
EP (1) EP0908430B1 (es)
AT (1) ATE222578T1 (es)
DE (2) DE19744404A1 (es)
ES (1) ES2182197T3 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19826570C2 (de) * 1998-06-15 2002-10-31 Piesteritz Stickstoff Verfahren zur Herstellung von Harnstoff und Ammonsulfat enthaltenden Düngemittel-Granulaten
DE102004005907B4 (de) 2004-02-05 2006-01-05 Uhde Gmbh Anlage zur Herstellung von biuretarmem harnstoffhaltigem Düngemittelgranulat
DE102008022007A1 (de) * 2008-05-02 2009-11-05 Alzchem Trostberg Gmbh Dicyandiamid-Granulat mit hoher Lösungsgeschwindigkeit und guter Rieselfähigkeit sowie Verfahren zu dessen Herstellung
DE102009036229B4 (de) 2009-08-05 2015-02-12 Skw Stickstoffwerke Piesteritz Gmbh Antibackmittel für harnstoffbasierte Düngemittel, Düngemittelformulierungen mit diesem Antibackmittel und Verfahren zu deren Herstellung
DE102010022943A1 (de) 2010-06-08 2011-12-08 Skw Stickstoffwerke Piesteritz Gmbh Mischung zur Behandlung von Düngemitteln
DE102017005463A1 (de) 2017-06-08 2018-12-13 Skw Stickstoffwerke Piesteritz Gmbh Zusammensetzungen mit N-((3(5)-Methyl-1H-pyrazol-1-yl)methyl)acetamid und deren Vewendung zur Herstellung von lagerfähigen Fertigdüngemitteln mit dualer Stickstoffstabilisierung
DE102019118702A1 (de) 2019-07-10 2021-01-14 Thyssenkrupp Ag Reduzierung der biuretgeneration in der harnstoffproduktion

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2714601C2 (de) * 1977-04-01 1984-12-06 Skw Trostberg Ag, 8223 Trostberg Verfahren zur Herstellung eines Harnstoff-Dicyandiamid-Düngemittels
DE2922436A1 (de) * 1979-06-01 1980-12-18 Sueddeutsche Kalkstickstoff Verfahren zur gewinnung von harnstoffkoernern mit verbesserten eigenschaften
DD159988A1 (de) * 1981-06-29 1983-04-20 Dietrich Braumann Verfahren zur herstellung granulierter harnstoff-dicyandiamid-duenger
DD231226A3 (de) * 1982-11-02 1985-12-24 Komb Gisag Veb Stahlgiesserei Verfahren zur metallurgischen aufarbeitung von sekundaerrohstoffen
DE3543920A1 (de) * 1985-12-12 1987-06-19 Sueddeutsche Kalkstickstoff Stickstoffduengemittel mit langzeitwirkung und verfahren zu seiner herstellung
US4994100A (en) * 1988-12-29 1991-02-19 Freeport Mcmoran Resource Partners Homogeneous granular nitrogen fertilizer

Also Published As

Publication number Publication date
DE59805236D1 (de) 2002-09-26
ATE222578T1 (de) 2002-09-15
EP0908430B1 (de) 2002-08-21
DE19744404A1 (de) 1999-04-15
EP0908430A2 (de) 1999-04-14
EP0908430A3 (de) 2000-04-19

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