IE780991L - Urea granulation - Google Patents

Urea granulation

Info

Publication number
IE780991L
IE780991L IE780991A IE99178A IE780991L IE 780991 L IE780991 L IE 780991L IE 780991 A IE780991 A IE 780991A IE 99178 A IE99178 A IE 99178A IE 780991 L IE780991 L IE 780991L
Authority
IE
Ireland
Prior art keywords
urea
soln
pref
particles
urea granulation
Prior art date
Application number
IE780991A
Other versions
IE46841B1 (en
Original Assignee
Azote Sa Cie Neerlandaise
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
Priority claimed from GB24160/77A external-priority patent/GB1581761A/en
Application filed by Azote Sa Cie Neerlandaise filed Critical Azote Sa Cie Neerlandaise
Publication of IE780991L publication Critical patent/IE780991L/en
Publication of IE46841B1 publication Critical patent/IE46841B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/005—Post-treatment
    • 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

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)
  • Manufacturing Of Micro-Capsules (AREA)
  • Medicinal Preparation (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

Prodn. of urea granules is carried out by spraying an aq. urea soln. onto fluidised urea particles at a temp. such that the H2O vaporises and the urea crystallises on the particles to form granules of the required size. The urea concn. in the aq. soln. is 70-99.9 (pref. 85-96) wt.%, and the soln. is sprayed in the form of droplets with an av. size of 20-120 (pref. 30-100, esp. 30-60)mu. [FR2393779A1]
IE991/78A 1977-06-09 1978-05-17 Improvements in or relating to urea granulation IE46841B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB24160/77A GB1581761A (en) 1977-06-09 1977-06-09 Urea granulation
GB1552978 1978-04-19

Publications (2)

Publication Number Publication Date
IE780991L true IE780991L (en) 1978-12-09
IE46841B1 IE46841B1 (en) 1983-10-05

Family

ID=26251359

Family Applications (1)

Application Number Title Priority Date Filing Date
IE991/78A IE46841B1 (en) 1977-06-09 1978-05-17 Improvements in or relating to urea granulation

Country Status (15)

Country Link
JP (1) JPS5416427A (en)
AT (1) AT363954B (en)
CA (1) CA1101641A (en)
DE (1) DE2825039C3 (en)
ES (1) ES470676A1 (en)
FI (1) FI65713C (en)
FR (1) FR2393779A1 (en)
GR (1) GR66015B (en)
IE (1) IE46841B1 (en)
IT (1) IT1096385B (en)
MX (1) MX5671E (en)
NL (1) NL173714C (en)
NO (1) NO151786C (en)
PT (1) PT68149A (en)
SE (1) SE432362B (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5855807B2 (en) * 1979-10-08 1983-12-12 三井東圧化学株式会社 Granulation method
JPS5921650B2 (en) * 1979-11-29 1984-05-21 東洋エンジニアリング株式会社 Granulation method
JPS56100756A (en) * 1980-01-16 1981-08-12 Chisso Corp Granulation of urea
NL191557C (en) * 1980-05-12 1995-09-19 Azote Sa Cie Neerlandaise A method for manufacturing granules built up from a core and an envelope.
NL8502838A (en) * 1985-10-17 1987-05-18 Azote Sa Cie Neerlandaise METHOD FOR MANUFACTURING UREA AND AMMONIUM SULFATE CONTAINING FERTILIZER GRAINS.
NL8700913A (en) * 1987-04-16 1988-11-16 Nl Stikstof METHOD FOR MANUFACTURING FERTILIZER GRANULES
DE4000572C1 (en) * 1990-01-10 1991-02-21 Herbert 7853 Steinen De Huettlin
GB2248219B (en) * 1990-09-07 1994-06-01 Daifuku Kk Truck having vertically movable goods-receiving portion field of the invention
JP3667418B2 (en) * 1996-02-01 2005-07-06 東洋エンジニアリング株式会社 Method for producing granular urea
NL1002862C2 (en) * 1996-04-15 1997-10-17 Dsm Nv Method for preparing granules.
NO312712B1 (en) * 1999-12-15 2002-06-24 Norsk Hydro As A sorting fluid bed granulator and method of fluid bed granulation
JP2002037689A (en) * 2000-07-24 2002-02-06 Chisso Corp Coated covering granular fertilizer
NL1017130C2 (en) 2001-01-17 2002-07-18 Dsm Nv Process for preparing granules.
GB2394956B (en) 2002-10-18 2004-10-27 Basic Solutions Ltd A urea based granule blend for ice-melting and reducing granule caking
JP4401669B2 (en) * 2003-03-27 2010-01-20 三菱ふそうトラック・バス株式会社 Urea water for reducing denitration and denitration apparatus using the same
DE10346519A1 (en) * 2003-10-02 2005-05-04 Uhde Gmbh Process for the removal of ammonia and dust from an exhaust gas resulting from the production of fertilizers
DE102004005907B4 (en) 2004-02-05 2006-01-05 Uhde Gmbh Plant for the production of biuretarmem urea-containing fertilizer granules
NL1025805C2 (en) * 2004-03-25 2005-09-27 Dsm Ip Assets Bv Process for the granulation of urea.
JP4852270B2 (en) * 2005-07-13 2012-01-11 東洋エンジニアリング株式会社 Method for producing granular urea product
DE102005037750A1 (en) * 2005-08-10 2007-02-22 Glatt Ingenieurtechnik Gmbh Process for the production of urea pellets
JP4455643B2 (en) 2007-10-30 2010-04-21 東洋エンジニアリング株式会社 Granulating apparatus and granulating method using the same
EP2305371A1 (en) * 2009-09-10 2011-04-06 Stamicarbon B.V. Process for producing granules
JP2012046381A (en) * 2010-08-27 2012-03-08 Sumitomo Chemical Co Ltd Method for producing resin-coated granular fertilizer
CN103748071B (en) * 2011-10-14 2017-03-08 斯塔米卡邦有限公司 Carbamide method for finishing processing
EP3472294B1 (en) * 2016-06-20 2020-07-22 Basf Se Powders and granules and process for making such powders and granules
EA038075B1 (en) * 2016-07-15 2021-07-01 Тиссенкрупп Фертилайзер Текнолоджи Гмбх Use of a urea composition to produce diesel exhaust fluid (aus 32)
WO2019215193A1 (en) * 2018-05-08 2019-11-14 Thyssenkrupp Fertilizer Technology Gmbh Internal cooling system for fluid-bed granulation plants
DE102019118702A1 (en) 2019-07-10 2021-01-14 Thyssenkrupp Ag REDUCING BIURET GENERATION IN UREA PRODUCTION

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1123488A (en) * 1954-05-05 1956-09-21 Ici Ltd Production of urea in granulated form
CH431576A (en) * 1964-01-07 1967-03-15 Inventa Ag Process for granulating nitrogenous fertilizers
NL149089B (en) * 1965-12-27 1976-04-15 Chemical & Ind Corp METHOD AND DEVICE FOR PREPARING SOLID, HARD FERTILIZER PELLETS OF AMMONIUM NITRATE OR UREA.
NL147404C (en) * 1970-08-06 1975-05-15
NL7114771A (en) * 1971-10-27 1973-05-02

Also Published As

Publication number Publication date
NL7806213A (en) 1978-12-12
SE7806601L (en) 1978-12-10
JPS5647181B2 (en) 1981-11-07
CA1101641A (en) 1981-05-26
FR2393779A1 (en) 1979-01-05
SE432362B (en) 1984-04-02
GR66015B (en) 1981-01-13
NO151786C (en) 1985-06-05
AT363954B (en) 1981-09-10
MX5671E (en) 1983-12-08
ATA356078A (en) 1981-02-15
IE46841B1 (en) 1983-10-05
FI781699A (en) 1978-12-10
DE2825039C3 (en) 1987-04-16
FI65713C (en) 1984-07-10
IT1096385B (en) 1985-08-26
NO151786B (en) 1985-02-25
NL173714C (en) 1984-03-01
DE2825039A1 (en) 1978-12-21
PT68149A (en) 1978-07-01
ES470676A1 (en) 1979-02-16
NO781952L (en) 1978-12-12
IT7824325A0 (en) 1978-06-08
FR2393779B1 (en) 1982-12-10
JPS5416427A (en) 1979-02-07
FI65713B (en) 1984-03-30
DE2825039B2 (en) 1981-01-08

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Legal Events

Date Code Title Description
MK9A Patent expired