ES8300311A1 - Perfeccionamientos en los procedimientos de producir granu- los de urea. - Google Patents

Perfeccionamientos en los procedimientos de producir granu- los de urea.

Info

Publication number
ES8300311A1
ES8300311A1 ES502903A ES502903A ES8300311A1 ES 8300311 A1 ES8300311 A1 ES 8300311A1 ES 502903 A ES502903 A ES 502903A ES 502903 A ES502903 A ES 502903A ES 8300311 A1 ES8300311 A1 ES 8300311A1
Authority
ES
Spain
Prior art keywords
urea
production
granules
urea granules
melt
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
Application number
ES502903A
Other languages
English (en)
Other versions
ES502903A0 (es
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.)
Azote SA Cie Neerlandaise
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
Application filed by Azote SA Cie Neerlandaise filed Critical Azote SA Cie Neerlandaise
Publication of ES502903A0 publication Critical patent/ES502903A0/es
Publication of ES8300311A1 publication Critical patent/ES8300311A1/es
Expired legal-status Critical Current

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
    • B01J2/30—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B19/00—Granulation or pelletisation of phosphatic fertilisers, other than slag
    • C05B19/02—Granulation or pelletisation of phosphatic fertilisers, other than slag of superphosphates or mixtures containing them
    • 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)
  • Medicinal Preparation (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

PROCEDIMIENTO PARA PRODUCIR GRANULOS DE UREA. A UNA MASA FUNDIDA DE UREA SUBSTANCIALMENTE ANHIDRA SE LE INCORPORA OXIDO DE MANGESIO EN FORMA DE DOLOMITA SELECTIVA O COMPLETAMENTE CALCINADA, EN UNA CANTIDAD DE AL MENOS 0''1% EN PESO, CALCULADA EN BASE A LA UREA DE LA MASA FUNDIDA. DICHA MASA FUNDIDA SE GRANULA POR PULVERIZACION EN UNA COLUMNA DE FORMACION DE GRANOS EN UNA CORRIENTE DE AIRE ASCENDENTE, EN UN TAMBOR ROTATIVO, EN UNA BANDEJA ROTATIVA O EN UN LECHO FLUIDIZADO DE PARTICULAS DE UREA.
ES502903A 1980-05-20 1981-05-20 Perfeccionamientos en los procedimientos de producir granu- los de urea. Expired ES8300311A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8002912A NL8002912A (nl) 1980-05-20 1980-05-20 Werkwijze voor het maken van ureumkorrels, alsmede aldus verkregen ureumkorrels bevattende kunstmestmengsels.

Publications (2)

Publication Number Publication Date
ES502903A0 ES502903A0 (es) 1982-11-01
ES8300311A1 true ES8300311A1 (es) 1982-11-01

Family

ID=19835332

Family Applications (1)

Application Number Title Priority Date Filing Date
ES502903A Expired ES8300311A1 (es) 1980-05-20 1981-05-20 Perfeccionamientos en los procedimientos de producir granu- los de urea.

Country Status (28)

Country Link
JP (1) JPS6035320B2 (es)
AT (1) AT375917B (es)
BE (1) BE888842A (es)
BG (1) BG49613A3 (es)
BR (1) BR8103139A (es)
CA (1) CA1157288A (es)
CS (1) CS259506B2 (es)
DD (1) DD159040A5 (es)
DE (1) DE3118454C2 (es)
EG (1) EG15440A (es)
ES (1) ES8300311A1 (es)
FI (1) FI71721C (es)
FR (1) FR2482871B1 (es)
GB (1) GB2077722B (es)
GR (1) GR75604B (es)
HU (1) HU184438B (es)
IE (1) IE51964B1 (es)
IN (1) IN153960B (es)
IT (1) IT1136617B (es)
MX (1) MX160067A (es)
NL (2) NL8002912A (es)
NO (1) NO151648C (es)
PL (1) PL134458B1 (es)
PT (1) PT73053B (es)
SE (1) SE446625B (es)
TR (1) TR21674A (es)
YU (1) YU42568B (es)
ZA (1) ZA813280B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2050634A1 (es) * 1992-09-29 1994-05-16 Kali & Salz Ag Procedimiento para evitar la formacion de polvo durante la carga y el transporte de granulados fertilizantes sulfatados.

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3117542A1 (de) * 1981-05-04 1983-02-10 Franz Josef Gattys Ingenieurbüro für Chem. Maschinen- und Apparatebau, 6078 Neu-Isenburg Verfahren zur stabilisierung von dehydratisiertem magnesiumschlorid gegen rueck-hydratisierung
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
NL8502838A (nl) * 1985-10-17 1987-05-18 Azote Sa Cie Neerlandaise Werkwijze ter vervaardiging van ureum en ammoniumsulfaat bevattende meststofkorrels.
AU679330B2 (en) * 1994-02-11 1997-06-26 Incitec Ltd Granular urea
AUPM383594A0 (en) * 1994-02-11 1994-03-10 Incitec Ltd Granular urea
DE102005018949A1 (de) 2005-04-18 2006-10-19 Ami-Agrolinz Melamine International Gmbh Harnstoffpartikel, Verfahren zu dessen Herstellung und dessen Verwendung
DE102021108187A1 (de) 2021-03-31 2022-10-06 Skw Stickstoffwerke Piesteritz Gmbh Granuliertes pH-neutrales Harnstoff-Ammoniumsulfat-Düngemittel mit Ureaseinhibitor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB731686A (en) * 1952-06-25 1955-06-15 Ici Ltd Improvements in and relating to urea compositions
GB837163A (en) * 1958-01-31 1960-06-09 Ici Ltd Improvements in and relating to urea compositions
GB1220826A (en) * 1967-09-13 1971-01-27 Fisons Ltd Process for the production of particulate urea

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2050634A1 (es) * 1992-09-29 1994-05-16 Kali & Salz Ag Procedimiento para evitar la formacion de polvo durante la carga y el transporte de granulados fertilizantes sulfatados.

Also Published As

Publication number Publication date
ZA813280B (en) 1982-05-26
AT375917B (de) 1984-09-25
ES502903A0 (es) 1982-11-01
DE3118454A1 (de) 1982-02-18
IN153960B (es) 1984-09-08
NO811697L (no) 1981-11-23
FI811539L (fi) 1981-11-21
PT73053A (en) 1981-06-01
SE8103139L (sv) 1981-11-21
YU128581A (en) 1983-06-30
DD159040A5 (de) 1983-02-16
MX160067A (es) 1989-11-17
ATA215381A (de) 1984-02-15
DE3118454C2 (de) 1984-04-26
GB2077722B (en) 1984-02-15
BG49613A3 (en) 1991-12-15
NO151648B (no) 1985-02-04
IT1136617B (it) 1986-09-03
EG15440A (en) 1985-12-31
CS259506B2 (en) 1988-10-14
NL8102191A (nl) 1981-12-16
PL134458B1 (en) 1985-08-31
NL8002912A (nl) 1981-12-16
HU184438B (en) 1984-08-28
IE811062L (en) 1981-11-20
BR8103139A (pt) 1982-02-09
FR2482871B1 (fr) 1986-05-09
JPS5717487A (en) 1982-01-29
GR75604B (es) 1984-08-01
FI71721B (fi) 1986-10-31
JPS6035320B2 (ja) 1985-08-14
YU42568B (en) 1988-10-31
GB2077722A (en) 1981-12-23
NO151648C (no) 1985-05-15
IE51964B1 (en) 1987-05-13
IT8121817A0 (it) 1981-05-19
SE446625B (sv) 1986-09-29
BE888842A (nl) 1981-11-19
CA1157288A (en) 1983-11-22
PT73053B (en) 1982-07-01
PL231271A1 (es) 1981-12-23
FI71721C (fi) 1987-02-09
CS372081A2 (en) 1988-03-15
FR2482871A1 (fr) 1981-11-27
TR21674A (tr) 1985-01-21

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970303