MX172709B - Un metodo para producir granulos de fertilizantes que contienen urea y sulfato de amonio y granulos semejantes - Google Patents

Un metodo para producir granulos de fertilizantes que contienen urea y sulfato de amonio y granulos semejantes

Info

Publication number
MX172709B
MX172709B MX004056A MX405686A MX172709B MX 172709 B MX172709 B MX 172709B MX 004056 A MX004056 A MX 004056A MX 405686 A MX405686 A MX 405686A MX 172709 B MX172709 B MX 172709B
Authority
MX
Mexico
Prior art keywords
ammonium sulphate
urea
granules
producing fertilizer
containing urea
Prior art date
Application number
MX004056A
Other languages
English (en)
Inventor
Luc Albert Vanmarcke
Walter Edmond Mathilde Cardon
Original Assignee
Nl Stikstof
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 Nl Stikstof filed Critical Nl Stikstof
Publication of MX172709B publication Critical patent/MX172709B/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/005—Post-treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
    • C05C3/005—Post-treatment

Abstract

La presente invención se refiere a un metodo para producir gránulos de fertilizante que contienen urea y sulfato de amonio, granulando para ello una mezcla que contiene urea, sulfato de amonio y agua; caracterizado por el hecho de que el sulfato de amonio se disuelve completamente en una solución acuosa de urea, con una concentración de la urea del 70 a 85 por ciento en peso y la solución resultante se espesa a un contenido de producto seco del 92 al 97 por ciento en peso, agregándose en cualquiera etapa del tratamiento un retardador de la cristalización apropiado para la urea, despues de lo cual la solución espesada se granula en un lecho fluidificado de núcleos que contienen urea y sulfato de amonio.
MX004056A 1985-10-17 1986-10-16 Un metodo para producir granulos de fertilizantes que contienen urea y sulfato de amonio y granulos semejantes MX172709B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8502838A NL8502838A (nl) 1985-10-17 1985-10-17 Werkwijze ter vervaardiging van ureum en ammoniumsulfaat bevattende meststofkorrels.

Publications (1)

Publication Number Publication Date
MX172709B true MX172709B (es) 1994-01-10

Family

ID=19846728

Family Applications (1)

Application Number Title Priority Date Filing Date
MX004056A MX172709B (es) 1985-10-17 1986-10-16 Un metodo para producir granulos de fertilizantes que contienen urea y sulfato de amonio y granulos semejantes

Country Status (21)

Country Link
US (1) US4943308A (es)
EP (1) EP0223276B1 (es)
JP (1) JPH0784355B2 (es)
CN (1) CN1011891B (es)
AT (1) ATE54438T1 (es)
AU (1) AU590015B2 (es)
BR (1) BR8605068A (es)
CA (1) CA1281911C (es)
DE (1) DE3672569D1 (es)
ES (1) ES2016797B3 (es)
FI (1) FI88150C (es)
GR (1) GR3001016T3 (es)
IE (1) IE59436B1 (es)
IN (1) IN166616B (es)
MX (1) MX172709B (es)
MY (1) MY100026A (es)
NL (1) NL8502838A (es)
NO (1) NO168636C (es)
NZ (1) NZ217900A (es)
SU (1) SU1671162A3 (es)
ZA (1) ZA867665B (es)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8700913A (nl) * 1987-04-16 1988-11-16 Nl Stikstof Werkwijze voor het vervaardigen van kunstmestgranules.
US4994100A (en) * 1988-12-29 1991-02-19 Freeport Mcmoran Resource Partners Homogeneous granular nitrogen fertilizer
GB9014985D0 (en) * 1990-07-06 1990-08-29 Dyno Industrier As Formaldehyde resin curing agents
US5330552A (en) * 1993-07-08 1994-07-19 Rizzo John M Method for increasing crop yield
AUPM383594A0 (en) * 1994-02-11 1994-03-10 Incitec Ltd Granular urea
US6299663B1 (en) 1996-04-19 2001-10-09 Airborne Industrial Minerals Inc. Granulation method and apparatus therefor
IL122558A (en) * 1996-04-19 2000-06-29 Airborne Ind Minerals Inc Granulation method and apparatus therefor
NZ331531A (en) * 1997-09-04 2000-01-28 Toyo Engineering Corp method for granulation and granulator
US6331193B1 (en) 1998-04-17 2001-12-18 Airborne Industrial Minerals Inc. Wet granulation method generating sulfur granules
US6454979B1 (en) 1998-04-17 2002-09-24 Airborne Industrial Minerals Inc. Wet granulation method for generating granules
US6132484A (en) * 1998-04-17 2000-10-17 Airborne Industrial Minerals Inc. Wet granulation method for generating fertilizer granules
US6293985B1 (en) 1998-04-17 2001-09-25 Airborne Industrial Minerals Fertilizer granulation method
DE19826570C2 (de) 1998-06-15 2002-10-31 Piesteritz Stickstoff Verfahren zur Herstellung von Harnstoff und Ammonsulfat enthaltenden Düngemittel-Granulaten
US6582637B1 (en) 1999-05-05 2003-06-24 Agronomic Growth Industries Ltd. Compost granulation method
DE10001082B4 (de) 2000-01-13 2004-11-18 Skw Stickstoffwerke Piesteritz Gmbh Verfahren zur Herstellung eines Ammoniumsulfat und Harnstoff enthaltenden Düngemittels
DE102004005907B4 (de) * 2004-02-05 2006-01-05 Uhde Gmbh Anlage zur Herstellung von biuretarmem harnstoffhaltigem Düngemittelgranulat
NO326272B1 (no) * 2004-07-01 2008-10-27 Yara Int Asa Fremgangsmate for produksjon av gjodningsmiddel som inneholder urea og ammoniumsulfat
CN100413812C (zh) * 2004-08-23 2008-08-27 徐耀武 复合硫基大颗粒尿素生产工艺
EP2431346A1 (en) * 2010-09-15 2012-03-21 Uhde Fertilizer Technology B.V. Method for producing urea fertilizer with low moisture absorption tendencies
US8617286B2 (en) 2010-10-21 2013-12-31 John M. Rizzo Method for increasing crop yield
EP2489429A1 (en) 2011-02-21 2012-08-22 Urea Casale S.A. Fluid bed granulation of urea and related apparatus
NO336052B1 (no) 2012-08-29 2015-04-27 Yara Int Asa Sikre blandinger av ammoniumnitrat (AN) med urea, eller av et AN-omfattende produkt med et urea-omfattende produkt
BR112016010982A8 (pt) 2013-08-23 2023-03-07 Koch Agronomic Services Llc Composições estabilizantes de ureia e nitrogênio
EP3542899A1 (en) 2018-03-20 2019-09-25 Yara International ASA Method and reactor for producing urea ammonium sulphate
DE102021108187A1 (de) 2021-03-31 2022-10-06 Skw Stickstoffwerke Piesteritz Gmbh Granuliertes pH-neutrales Harnstoff-Ammoniumsulfat-Düngemittel mit Ureaseinhibitor
EP4347536A2 (en) * 2021-08-11 2024-04-10 INWATEC GmbH & Co. KG Composition for granular urea-based fertilizer

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US101803A (en) * 1870-04-12 Improvement in padlocks
GB810760A (en) * 1956-08-03 1959-03-25 Bergwerksgesellschaft Hibernia A method for the preparation of a fertilizer containing urea and ammonium sulphate, with a high nitrogen content
DE1112091B (de) * 1957-11-21 1961-08-03 Inventa A G Fuer Forschung Verfahren zur Herstellung von lagerbestaendigen, granulierten Mischduengemitteln ausHarnstoff und Ammoniumsulfat
CH364277A (de) * 1962-05-24 1962-09-15 Lonza Ag Verfahren zur Herstellung von biuretarmen, magnesiumhaltigen Harnstoffprills
CH431576A (de) * 1964-01-07 1967-03-15 Inventa Ag Verfahren zum Granulieren von stickstoffhaltigen Düngemitteln
US3785796A (en) * 1972-01-27 1974-01-15 Tennessee Valley Autority Production of urea-ammonium sulfate
US4033747A (en) * 1974-08-05 1977-07-05 Union Oil Company Of California Silvicultural fertilization
US3928015A (en) * 1974-10-29 1975-12-23 Tennessee Valley Authority Manufacture of urea-ammonium sulate from sulfuric acid, ammonia, and urea
SU635080A1 (ru) * 1976-01-15 1978-11-30 Предприятие П/Я В-2609 Способ получени граннулированного карбамида
GB1581761A (en) * 1977-06-09 1980-12-17 Azote Sa Cie Neerlandaise Urea granulation
CA1101641A (en) * 1977-06-09 1981-05-26 Anton Niks Urea granulation
US4388101A (en) * 1979-03-14 1983-06-14 Occidental Chemical Agricultural Products, Inc. Non-pressure nitrogen carrier fertilizer solutions and dispersions and process of manufacture
US4239522A (en) * 1979-06-13 1980-12-16 Phillips Petroleum Company Fertilizer solutions containing sulfur and having low crystallization temperature
NL8002912A (nl) * 1980-05-20 1981-12-16 Azote Sa Cie Neerlandaise Werkwijze voor het maken van ureumkorrels, alsmede aldus verkregen ureumkorrels bevattende kunstmestmengsels.
NL8103210A (nl) * 1981-07-03 1983-02-01 Azote Sa Cie Neerlandaise Werkwijze voor het maken van ureumkorrels.
DE3223139C2 (de) * 1981-07-03 1985-02-07 Compagnie Néerlandaise de l'Azote S.A., Bruxelles Verfahren zur Herstellung von Harnstoff als Hauptbestandteil enthaltenden Düngemittelkörnern
NL184769C (nl) * 1981-07-03 1989-11-01 Azote Sa Cie Neerlandaise Werkwijze voor het vervaardigen van ureumkorrels.
UST101803I4 (en) 1981-07-27 1982-05-04 Jones Thomas M Production of urea-ammonium sulfate suspension fertilizer

Also Published As

Publication number Publication date
EP0223276A1 (en) 1987-05-27
AU590015B2 (en) 1989-10-26
NO168636C (no) 1992-03-18
FI864127A0 (fi) 1986-10-13
FI88150C (fi) 1993-04-13
IN166616B (es) 1990-06-16
BR8605068A (pt) 1987-07-21
NZ217900A (en) 1990-01-29
MY100026A (en) 1989-04-20
EP0223276B1 (en) 1990-07-11
ZA867665B (en) 1987-05-27
FI864127A (fi) 1987-04-18
JPS6291484A (ja) 1987-04-25
NL8502838A (nl) 1987-05-18
CN1011891B (zh) 1991-03-06
NO864144D0 (no) 1986-10-17
IE862697L (en) 1987-04-17
SU1671162A3 (ru) 1991-08-15
AU6416886A (en) 1987-04-30
DE3672569D1 (de) 1990-08-16
NO864144L (no) 1987-04-21
NO168636B (no) 1991-12-09
CA1281911C (en) 1991-03-26
ATE54438T1 (de) 1990-07-15
JPH0784355B2 (ja) 1995-09-13
GR3001016T3 (en) 1991-12-30
IE59436B1 (en) 1994-02-23
FI88150B (fi) 1992-12-31
CN86106555A (zh) 1987-04-15
ES2016797B3 (es) 1990-12-01
US4943308A (en) 1990-07-24

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