ES8402171A1 - Un procedimiento para la produccion de granulos que contienen urea como componente principal. - Google Patents

Un procedimiento para la produccion de granulos que contienen urea como componente principal.

Info

Publication number
ES8402171A1
ES8402171A1 ES513685A ES513685A ES8402171A1 ES 8402171 A1 ES8402171 A1 ES 8402171A1 ES 513685 A ES513685 A ES 513685A ES 513685 A ES513685 A ES 513685A ES 8402171 A1 ES8402171 A1 ES 8402171A1
Authority
ES
Spain
Prior art keywords
solution
melt
main component
granules containing
suspension
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
ES513685A
Other languages
English (en)
Other versions
ES513685A0 (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
Priority claimed from NL8103210A external-priority patent/NL8103210A/nl
Application filed by Azote SA Cie Neerlandaise filed Critical Azote SA Cie Neerlandaise
Publication of ES8402171A1 publication Critical patent/ES8402171A1/es
Publication of ES513685A0 publication Critical patent/ES513685A0/es
Granted legal-status Critical Current

Links

Classifications

    • 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)
  • Fertilizers (AREA)

Abstract

PROCEDIMIENTO PARA LA PRODUCCION DE GRANULOS QUE CONTIENEN UREA COMO COMPONENTE PRINCIPAL. COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, SE PULVERIZA UNA SOLUCION DE UREA CON UNA CONCENTRACION DE UREA DE POR LO MENOS UN 70 POR CIEN EN PESO, PREFERIBLEMENTE DE UN 85 A UN 96 POR CIEN EN PESO; SEGUNDA, A DICHA SOLUCION DE UREA PULVERIZADA SE LE AÑADE UNA SAL DE ALUMINIO INORGANICA SOLUBLE EN AGUA, COMO RETARDADOR DE LA CRISTALIZACION PARA LA UREA; TERCERA, A LA MENCIONADA SOLUCION DE UREA SE LE AÑADE OPCIONALMENTE UNO O MAS FERTILIZANTES ADICIONALES, TALES COMO SULFATO DE AMONIO, DIHIDROGENOFOSFATO DE AMONIO O HIDROGENOFOSFATO DE DIAMONIO; Y POR ULTIMO, LA SUSPENSION PULVERIZADA SE EVAPORA Y LA UREA O EL MATERIAL FERTILIZANTE SE SOLIDIFICAN, FORMANDOSE GRANULOS DEL TAMAÑO DESEADO.
ES513685A 1981-07-03 1982-07-02 Un procedimiento para la produccion de granulos que contienen urea como componente principal. Granted ES513685A0 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8103210A NL8103210A (nl) 1981-07-03 1981-07-03 Werkwijze voor het maken van ureumkorrels.
NLAANVRAGE8200552,A NL184769C (nl) 1981-07-03 1982-02-12 Werkwijze voor het vervaardigen van ureumkorrels.

Publications (2)

Publication Number Publication Date
ES8402171A1 true ES8402171A1 (es) 1984-02-01
ES513685A0 ES513685A0 (es) 1984-02-01

Family

ID=26645713

Family Applications (1)

Application Number Title Priority Date Filing Date
ES513685A Granted ES513685A0 (es) 1981-07-03 1982-07-02 Un procedimiento para la produccion de granulos que contienen urea como componente principal.

Country Status (26)

Country Link
US (1) US4500336A (es)
AT (1) AT382145B (es)
BG (1) BG36929A3 (es)
BR (1) BR8203893A (es)
CA (1) CA1173660A (es)
DD (1) DD202417A5 (es)
DE (1) DE3222157C2 (es)
EG (1) EG15739A (es)
ES (1) ES513685A0 (es)
FI (1) FI72115C (es)
FR (1) FR2508895B1 (es)
GB (1) GB2101129B (es)
GR (1) GR76400B (es)
HU (1) HU190805B (es)
IE (1) IE53202B1 (es)
IN (1) IN157774B (es)
IT (1) IT1156104B (es)
MX (1) MX159932A (es)
NL (2) NL184769C (es)
NO (1) NO154743C (es)
PL (1) PL136353B1 (es)
PT (1) PT75144B (es)
RO (1) RO85735B (es)
SE (1) SE456644B (es)
TR (1) TR23125A (es)
YU (1) YU42777B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8502838A (nl) * 1985-10-17 1987-05-18 Azote Sa Cie Neerlandaise Werkwijze ter vervaardiging van ureum en ammoniumsulfaat bevattende meststofkorrels.
US5435821A (en) * 1985-12-12 1995-07-25 Exxon Research & Engineering Co. Controlled release vegetation enhancement agents coated with sulfonated polymers, method of production and prcesses of use
US4701204A (en) * 1985-12-12 1987-10-20 Exxon Research And Engineering Company Composite comprising a substrate coated with polymeric complexes
GB9014985D0 (en) * 1990-07-06 1990-08-29 Dyno Industrier As Formaldehyde resin curing agents
AUPM383594A0 (en) * 1994-02-11 1994-03-10 Incitec Ltd Granular urea
US6749660B2 (en) * 2001-06-04 2004-06-15 Geovation Technologies, Inc. Solid-chemical composition and method of preparation for the anaerobic bioremediation of environmental contaminants coupled to denitrification
CA2855492A1 (en) 2011-11-14 2013-05-23 Intercontinental Potash Corp. (Usa) Methods of processing polyhalite ore, methods of producing potassium sulfate, and related systems
CA2883806C (en) 2012-09-12 2018-04-10 Intercontinental Potash Corporation Methods of processing potassium sulfate and magnesium sulfate, and related systems
DE102015108344A1 (de) * 2015-05-27 2016-12-01 Thyssenkrupp Ag Granulation von Ammoniumsulfat
GEP20207124B (en) * 2015-07-06 2020-06-25 Stamicarbon Granulation of urea products
EP3542899A1 (en) 2018-03-20 2019-09-25 Yara International ASA Method and reactor for producing urea ammonium sulphate
EP3594194A1 (en) 2018-07-12 2020-01-15 Casale Sa Urea granulation process
DE102021108187A1 (de) 2021-03-31 2022-10-06 Skw Stickstoffwerke Piesteritz Gmbh Granuliertes pH-neutrales Harnstoff-Ammoniumsulfat-Düngemittel mit Ureaseinhibitor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE612708C (de) * 1930-10-21 1935-05-03 I G Farbenindustrie Akt Ges Verfahren zur Herstellung nicht backender, ammonnitrathaltiger Mischduenger
DE1024533B (de) * 1956-10-02 1958-02-20 Basf Ag Verfahren zur Herstellung von lagerbestaendigem, nicht zusammenbackendem Harnstoff
GB894773A (en) * 1958-05-30 1962-04-26 Chemical & Ind Corp Process for the production of pellets
GB891562A (en) * 1959-03-05 1962-03-14 Belge Produits Chimiques Sa Process for the production of granular ammonium nitrate
US3130225A (en) * 1962-02-12 1964-04-21 Pullman Inc Urea production
GB1168444A (en) * 1965-12-08 1969-10-22 Fisons Ltd Improved Granular Materials
GB1384384A (en) * 1971-08-27 1975-02-19 Ici Ltd Agglomeration of soluble particles
NO133872C (es) * 1974-07-26 1976-07-14 Norsk Hydro As
GB1581761A (en) * 1977-06-09 1980-12-17 Azote Sa Cie Neerlandaise Urea granulation
DK531278A (da) * 1977-12-22 1979-06-23 Fisons Ltd Middel til formindskelse af ammoniaktab ved anvendelse af urinstof som goedning

Also Published As

Publication number Publication date
GB2101129B (en) 1985-07-17
FI822347A0 (fi) 1982-07-01
FR2508895A1 (fr) 1983-01-07
IT8222205A1 (it) 1984-01-02
AT382145B (de) 1987-01-12
BR8203893A (pt) 1983-06-28
FI72115B (fi) 1986-12-31
IE53202B1 (en) 1988-08-31
SE8204078L (es) 1982-07-01
YU144382A (en) 1985-04-30
MX159932A (es) 1989-10-06
IN157774B (es) 1986-06-14
TR23125A (tr) 1989-04-03
NL8200552A (nl) 1983-02-01
NO154743B (no) 1986-09-08
CA1173660A (en) 1984-09-04
RO85735B (ro) 1984-11-30
NO822259L (no) 1983-01-04
NL184769B (nl) 1989-06-01
ES513685A0 (es) 1984-02-01
YU42777B (en) 1988-12-31
BG36929A3 (en) 1985-02-15
IE821406L (en) 1983-01-03
SE456644B (sv) 1988-10-24
FI822347L (fi) 1983-01-04
FI72115C (fi) 1987-04-13
EG15739A (en) 1986-09-30
SE8204078D0 (sv) 1982-07-01
PT75144B (en) 1984-05-25
PL136353B1 (en) 1986-02-28
DE3222157C2 (de) 1986-07-10
RO85735A (ro) 1984-11-25
HU190805B (en) 1986-11-28
FR2508895B1 (fr) 1985-05-31
NL184769C (nl) 1989-11-01
NL8802299A (nl) 1989-01-02
US4500336A (en) 1985-02-19
GB2101129A (en) 1983-01-12
ATA244582A (de) 1986-06-15
IT1156104B (it) 1987-01-28
DE3222157A1 (de) 1983-01-20
PL237213A1 (en) 1983-01-17
NO154743C (no) 1986-12-17
GR76400B (es) 1984-08-10
PT75144A (en) 1982-07-01
DD202417A5 (de) 1983-09-14
IT8222205A0 (it) 1982-07-02

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19931122