AR047118A1 - Proceso para la preparacion de granulos de urea - Google Patents

Proceso para la preparacion de granulos de urea

Info

Publication number
AR047118A1
AR047118A1 ARP040104122A ARP040104122A AR047118A1 AR 047118 A1 AR047118 A1 AR 047118A1 AR P040104122 A ARP040104122 A AR P040104122A AR P040104122 A ARP040104122 A AR P040104122A AR 047118 A1 AR047118 A1 AR 047118A1
Authority
AR
Argentina
Prior art keywords
urea
weight
urea granules
molten
biuret
Prior art date
Application number
ARP040104122A
Other languages
English (en)
Original Assignee
Dsm Ip Assets Bv
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 Dsm Ip Assets Bv filed Critical Dsm Ip Assets Bv
Publication of AR047118A1 publication Critical patent/AR047118A1/es

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fertilizers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Glanulating (AREA)
  • Medicinal Preparation (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

Un proceso para preparar gránulos de urea en un granulador de lecho fluido, usando al menos un dispositivo de suministro para introducir urea fundida, bajo la forma de una película, en un lecho fluido con nucleos de urea solidos, después de lo cual los nucleos crecen al solidificarse la urea fundida sobre ellos, donde las cantidades de biuret y agua en la urea fundida y los gránulos de urea satisface la siguiente relacion: bm . bg = 0,1-20; wm . (wm-wg); donde bm = % en peso de biuret en la urea fundida; bg = % en peso de biuret en los gránulos de urea; wm = % en peso de agua en la urea fundida; wg = % en peso de agua en los gránulos de urea.
ARP040104122A 2003-11-10 2004-11-09 Proceso para la preparacion de granulos de urea AR047118A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03078522 2003-11-10

Publications (1)

Publication Number Publication Date
AR047118A1 true AR047118A1 (es) 2006-01-11

Family

ID=34610068

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP040104122A AR047118A1 (es) 2003-11-10 2004-11-09 Proceso para la preparacion de granulos de urea

Country Status (13)

Country Link
US (1) US7498055B2 (es)
EP (1) EP1682255B1 (es)
CN (1) CN100434152C (es)
AR (1) AR047118A1 (es)
AU (1) AU2004291238B2 (es)
BR (1) BRPI0416384B1 (es)
CA (1) CA2545073C (es)
EA (1) EA009533B1 (es)
EG (1) EG24323A (es)
MY (1) MY141017A (es)
PL (1) PL1682255T3 (es)
UA (1) UA86207C2 (es)
WO (1) WO2005049193A1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2600771C (en) * 2005-04-18 2016-06-07 Dsm Ip Assets B.V. Process for the production of urea-comprising particles
JP4852270B2 (ja) * 2005-07-13 2012-01-11 東洋エンジニアリング株式会社 顆粒尿素製品の製造方法
EP2077147A1 (en) 2008-01-04 2009-07-08 Urea Casale S.A. Fluid bed granulation process and apparatus
EP2489429A1 (en) * 2011-02-21 2012-08-22 Urea Casale S.A. Fluid bed granulation of urea and related apparatus
EP3112332A1 (en) * 2015-07-03 2017-01-04 Casale SA Method for producing solid urea by granulation
DE102017108842A1 (de) * 2017-04-25 2018-10-25 Thyssenkrupp Ag Verfahren und Vorrichtung zur Herstellung von Harnstoff
DE102019118702A1 (de) * 2019-07-10 2021-01-14 Thyssenkrupp Ag Reduzierung der biuretgeneration in der harnstoffproduktion
EP3995488A1 (en) * 2020-11-06 2022-05-11 Casale Sa Process for producing feed-grade urea

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB767716A (en) 1952-10-25 1957-02-06 Chemical Construction Corp Improvements in a method for granulating urea
US3117020A (en) * 1957-11-29 1964-01-07 Montedison Spa Process for the spherical granulation of water-soluble nitrogenous material
CH411834A (de) 1961-10-10 1966-04-30 Stamicarbon Biuretarme Harnstoffprills
GB1581761A (en) * 1977-06-09 1980-12-17 Azote Sa Cie Neerlandaise Urea granulation
JPS6034517B2 (ja) * 1978-03-03 1985-08-09 宇部興産株式会社 流動層で尿素を造粒する方法
JPS5855807B2 (ja) * 1979-10-08 1983-12-12 三井東圧化学株式会社 造粒方法
US4345099A (en) * 1981-08-10 1982-08-17 Union Oil Company Of California Method of selectively removing biuret from urea and compositions for use therein
NL8302999A (nl) 1983-08-27 1985-03-18 Unie Van Kunstmestfab Bv Werkwijze voor het bereiden van granules.
NL8700913A (nl) * 1987-04-16 1988-11-16 Nl Stikstof Werkwijze voor het vervaardigen van kunstmestgranules.
UA26359C2 (uk) * 1992-08-07 1999-08-30 Хідро Агрі Слейскіл Б.В. Спосіб виробhицтва граhул сечовиhи
US6217630B1 (en) * 1999-05-03 2001-04-17 Cargill, Incorporated Conditioned fertilizer product, method for conditioning fertilizer, and method for using conditioned fertilizer product
EP1205455B1 (en) * 2000-11-14 2012-05-30 Urea Casale S.A. Method and apparatus for obtaining urea prills
CN1288129C (zh) * 2002-04-16 2006-12-06 李思斌 一种改进的大颗粒尿素组合转鼓造粒方法及设备

Also Published As

Publication number Publication date
EP1682255B1 (en) 2016-07-27
BRPI0416384A (pt) 2007-02-21
AU2004291238B2 (en) 2009-09-17
EA009533B1 (ru) 2008-02-28
EG24323A (en) 2009-01-25
CN100434152C (zh) 2008-11-19
WO2005049193A1 (en) 2005-06-02
PL1682255T3 (pl) 2017-02-28
CA2545073A1 (en) 2005-06-02
US7498055B2 (en) 2009-03-03
UA86207C2 (uk) 2009-04-10
AU2004291238A1 (en) 2005-06-02
EA200600954A1 (ru) 2006-08-25
CN1878608A (zh) 2006-12-13
US20070059446A1 (en) 2007-03-15
MY141017A (en) 2010-02-25
BRPI0416384B1 (pt) 2014-07-08
CA2545073C (en) 2013-02-19
EP1682255A1 (en) 2006-07-26

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