CS241112B2 - Method of urea granulae production - Google Patents

Method of urea granulae production Download PDF

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Publication number
CS241112B2
CS241112B2 CS824945A CS494582A CS241112B2 CS 241112 B2 CS241112 B2 CS 241112B2 CS 824945 A CS824945 A CS 824945A CS 494582 A CS494582 A CS 494582A CS 241112 B2 CS241112 B2 CS 241112B2
Authority
CS
Czechoslovakia
Prior art keywords
urea
granules
solution
particles
retarder
Prior art date
Application number
CS824945A
Other languages
Czech (cs)
English (en)
Other versions
CS494582A2 (en
Inventor
Willy Henri Prudent Van Hijfte
Luc Albert Vanmarcke
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 CS494582A2 publication Critical patent/CS494582A2/cs
Publication of CS241112B2 publication Critical patent/CS241112B2/cs

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
    • 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
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/005—Post-treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0078—Recirculation systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fertilizers (AREA)
CS824945A 1981-07-03 1982-06-30 Method of urea granulae production CS241112B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8103205 1981-07-03

Publications (2)

Publication Number Publication Date
CS494582A2 CS494582A2 (en) 1985-06-13
CS241112B2 true CS241112B2 (en) 1986-03-13

Family

ID=19837740

Family Applications (1)

Application Number Title Priority Date Filing Date
CS824945A CS241112B2 (en) 1981-07-03 1982-06-30 Method of urea granulae production

Country Status (28)

Country Link
US (1) US4478632A (de)
JP (1) JPS5849684A (de)
AT (1) AT382610B (de)
BE (1) BE893716A (de)
BR (1) BR8203890A (de)
CA (1) CA1190059A (de)
CS (1) CS241112B2 (de)
DD (1) DD208972A5 (de)
DE (1) DE3223139C2 (de)
EG (1) EG15823A (de)
ES (1) ES8503256A1 (de)
FI (1) FI71922C (de)
FR (1) FR2508894A1 (de)
GB (1) GB2103209B (de)
GR (1) GR76402B (de)
HU (1) HU190401B (de)
IE (1) IE53381B1 (de)
IN (1) IN157765B (de)
IT (1) IT1190903B (de)
MX (1) MX159933A (de)
NO (1) NO154683C (de)
PL (1) PL138045B1 (de)
PT (1) PT75172B (de)
RO (1) RO85736B (de)
SE (1) SE456643B (de)
TR (1) TR21523A (de)
YU (1) YU42778B (de)
ZA (1) ZA824698B (de)

Families Citing this family (7)

* 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.
NL8700913A (nl) * 1987-04-16 1988-11-16 Nl Stikstof Werkwijze voor het vervaardigen van kunstmestgranules.
AUPM383594A0 (en) * 1994-02-11 1994-03-10 Incitec Ltd Granular urea
US5676729A (en) * 1995-06-29 1997-10-14 Western Industrial Clay Products, Ltd. Particulate urea with mineral filler incorporated for hardness
CA2600771C (en) * 2005-04-18 2016-06-07 Dsm Ip Assets B.V. Process for the production of urea-comprising particles
AU2018302519B2 (en) * 2017-07-21 2023-10-12 SABIC Agri-Nutrients Company Calcium sulfate urea granules and methods for producing and using the same
DE102021108187A1 (de) 2021-03-31 2022-10-06 Skw Stickstoffwerke Piesteritz Gmbh Granuliertes pH-neutrales Harnstoff-Ammoniumsulfat-Düngemittel mit Ureaseinhibitor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1581761A (en) * 1977-06-09 1980-12-17 Azote Sa Cie Neerlandaise Urea granulation
NL8002912A (nl) * 1980-05-20 1981-12-16 Azote Sa Cie Neerlandaise Werkwijze voor het maken van ureumkorrels, alsmede aldus verkregen ureumkorrels bevattende kunstmestmengsels.

Also Published As

Publication number Publication date
FI71922B (fi) 1986-11-28
CA1190059A (en) 1985-07-09
BE893716A (nl) 1983-01-03
TR21523A (tr) 1984-08-10
SE456643B (sv) 1988-10-24
DD208972A5 (de) 1984-04-18
BR8203890A (pt) 1983-06-28
RO85736B (ro) 1984-11-30
AT382610B (de) 1987-03-25
US4478632A (en) 1984-10-23
IE53381B1 (en) 1988-10-26
IE821555L (en) 1983-01-03
DE3223139C2 (de) 1985-02-07
GB2103209B (en) 1985-07-24
IT1190903B (it) 1988-02-24
PL237215A1 (en) 1983-02-14
NO822260L (no) 1983-01-04
NO154683B (no) 1986-08-25
EG15823A (en) 1987-04-30
ATA248782A (de) 1986-08-15
PL138045B1 (en) 1986-08-30
SE8204077L (de) 1983-02-25
JPH0222036B2 (de) 1990-05-17
JPS5849684A (ja) 1983-03-23
GR76402B (de) 1984-08-10
YU144482A (en) 1985-04-30
YU42778B (en) 1988-12-31
MX159933A (es) 1989-10-06
CS494582A2 (en) 1985-06-13
HU190401B (en) 1986-09-29
IN157765B (de) 1986-06-14
ES513684A0 (es) 1985-02-16
FI822346A0 (fi) 1982-07-01
FR2508894B1 (de) 1983-12-23
RO85736A (ro) 1984-11-25
IT8222206A0 (it) 1982-07-02
ES8503256A1 (es) 1985-02-16
FI822346L (fi) 1983-01-04
PT75172B (en) 1984-06-27
FR2508894A1 (fr) 1983-01-07
GB2103209A (en) 1983-02-16
DE3223139A1 (de) 1983-01-27
ZA824698B (en) 1983-04-27
PT75172A (en) 1982-08-01
FI71922C (fi) 1987-03-09
SE8204077D0 (sv) 1982-07-01
NO154683C (no) 1986-12-03

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