RO85735B - Procedeu de obtinere a granulelor fertilizante cu continut de uree - Google Patents

Procedeu de obtinere a granulelor fertilizante cu continut de uree

Info

Publication number
RO85735B
RO85735B RO108038A RO10803882A RO85735B RO 85735 B RO85735 B RO 85735B RO 108038 A RO108038 A RO 108038A RO 10803882 A RO10803882 A RO 10803882A RO 85735 B RO85735 B RO 85735B
Authority
RO
Romania
Prior art keywords
solution
granules
melt
suspension
aluminum
Prior art date
Application number
RO108038A
Other languages
English (en)
Other versions
RO85735A (ro
Inventor
Hijfte Willy Henri Prudent Va
Luc Albert Vanmarcke
Original Assignee
Compagnie Neerlandaise De L'azote
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 Compagnie Neerlandaise De L'azote filed Critical Compagnie Neerlandaise De L'azote
Publication of RO85735A publication Critical patent/RO85735A/ro
Publication of RO85735B publication Critical patent/RO85735B/ro

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

Inventia se refera la un procedeu de obtinere a granulelor fertilizante cu continut de uree drept componenta principala, prin granulare unei topituri sau a unei solutii apoase de uree, cu sau fara adaosuri de agenti fertilizanti, constînd din sulfat de amoniu, fosfat mono sau biacid de amoniu în solutie si/sau suspensie, caracterizat prin aceea ca, în scopul eliminarii tendintei de aglutinare si al îmbunatatirii proprietatilor fizico-chimice ale granulelor obtinute care pot forma amestecuri heterogene cu granule unitare sau triple de superfosfat, se adauga la topitura solitia sau suspensia ce urmeaza sa fie granulata, o sare de aluminiu solubila în apa, constînd din clorura de aluminiu, sulfat de aluminiu si sodiu în proportie de 0,1... 1,0%, de preferinta 0,4...1,0% în greutate, calculata ca oxid de aluminiu, în raport cu continutul solid al topiturii, solutie sau suspensie.
RO108038A 1981-07-03 1982-07-01 Procedeu de obtinere a granulelor fertilizante cu continut de uree RO85735B (ro)

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
RO85735A RO85735A (ro) 1984-11-25
RO85735B true RO85735B (ro) 1984-11-30

Family

ID=26645713

Family Applications (1)

Application Number Title Priority Date Filing Date
RO108038A RO85735B (ro) 1981-07-03 1982-07-01 Procedeu de obtinere a granulelor fertilizante cu continut de uree

Country Status (26)

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

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 (ro) * 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
ES8402171A1 (es) 1984-02-01
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 (ro) 1982-07-01
YU144382A (en) 1985-04-30
MX159932A (es) 1989-10-06
IN157774B (ro) 1986-06-14
TR23125A (tr) 1989-04-03
NL8200552A (nl) 1983-02-01
NO154743B (no) 1986-09-08
CA1173660A (en) 1984-09-04
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 (ro) 1984-08-10
PT75144A (en) 1982-07-01
DD202417A5 (de) 1983-09-14
IT8222205A0 (it) 1982-07-02

Similar Documents

Publication Publication Date Title
RO85735B (ro) Procedeu de obtinere a granulelor fertilizante cu continut de uree
FR2395950A1 (fr) Purification de l'acide phosphorique
DE3672569D1 (de) Verfahren zur herstellung von harnstoff- und ammoniumsulfathaltigen duengemittelkoernchen.
FR2284568A1 (fr) Procede d'elimination de residus aqueux acides contenant des ions ferreux, par formation de particules polycristallines de composes de fer, et nouveaux produits ainsi obtenus
NO20001640L (no) FremgangsmÕte ved fremstilling av en kloraminoppløsning
MA22356A1 (fr) Procede de fabrication de produits phospho-azotes et produits obtenus
RO85736B (ro) Procedeu de obtinere a granulelor fertilizante cu continut de uree
RO85788B (ro) îNGRASAMîNT SUB FORMA DE GRANULE SI PROCEDEU DE OBTINERE A ACESTUIA
GB1275521A (en) Stabilized suspension fertilizer
IE34087B1 (en) Stabilized nh4no3-caco3 fertilizer compositions
SU1511251A1 (ru) Способ получени сульфата-нитрата аммони
SU1313842A1 (ru) Способ предотвращени слеживаемости гранулированной аммиачной селитры
SU1562335A1 (ru) Способ получени карбамида с цинксодержащим покрытием
RO90692B (ro) Catalizator de oxid de fier promotat sub forma de bloc si procedeu pentru obtinerea acestuia
SU1120000A1 (ru) Способ получени азотно-калийного удобрени
SU998446A1 (ru) Способ получени неслеживающегос гранулированного азотного удобрени
SU791393A1 (ru) Способ регенерации катионита
RU1048721C (ru) Способ получения триацетонамина
SU1444330A1 (ru) Способ кондиционировани водорастворимых солей
SU622758A1 (ru) Способ аммонизации раствора хлористого натри
SU1432043A1 (ru) Способ получени гранулированного суперфосфата
SU1065498A1 (ru) Порошкообразный состав дл титанировани стальных изделий
SU1388397A1 (ru) Способ получени аммофоса с цинком
Hikime et al. Precipitation of magnesium ammonium phosphate from homogeneous solution by means of hydrolysis of p-nitrophenylphosphate with an alkaline phosphatase
Mazurkiewicz Kinetics and analytical application of the reaction between thiourea and trimethylsulphoxonium iodide