DE3223139C2 - Verfahren zur Herstellung von Harnstoff als Hauptbestandteil enthaltenden Düngemittelkörnern - Google Patents
Verfahren zur Herstellung von Harnstoff als Hauptbestandteil enthaltenden DüngemittelkörnernInfo
- Publication number
- DE3223139C2 DE3223139C2 DE3223139A DE3223139A DE3223139C2 DE 3223139 C2 DE3223139 C2 DE 3223139C2 DE 3223139 A DE3223139 A DE 3223139A DE 3223139 A DE3223139 A DE 3223139A DE 3223139 C2 DE3223139 C2 DE 3223139C2
- Authority
- DE
- Germany
- Prior art keywords
- urea
- grains
- solution
- weight
- phosphate
- 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
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8103205 | 1981-07-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3223139A1 DE3223139A1 (de) | 1983-01-27 |
| DE3223139C2 true DE3223139C2 (de) | 1985-02-07 |
Family
ID=19837740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3223139A Expired DE3223139C2 (de) | 1981-07-03 | 1982-06-22 | Verfahren zur Herstellung von Harnstoff als Hauptbestandteil enthaltenden Düngemittelkörnern |
Country Status (28)
Families Citing this family (7)
| 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 |
| JP5649781B2 (ja) * | 2005-04-18 | 2015-01-07 | スタミカーボン ビー． ブイ． | 尿素含有粒子の製造方法 |
| 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)
| 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. |
-
1982
- 1982-06-22 GR GR68517A patent/GR76402B/el unknown
- 1982-06-22 DE DE3223139A patent/DE3223139C2/de not_active Expired
- 1982-06-26 IN IN752/CAL/82A patent/IN157765B/en unknown
- 1982-06-28 GB GB08218689A patent/GB2103209B/en not_active Expired
- 1982-06-28 IE IE1555/82A patent/IE53381B1/en not_active IP Right Cessation
- 1982-06-28 AT AT0248782A patent/AT382610B/de not_active IP Right Cessation
- 1982-06-29 FR FR8211362A patent/FR2508894A1/fr active Granted
- 1982-06-30 TR TR21523A patent/TR21523A/xx unknown
- 1982-06-30 CS CS824945A patent/CS241112B2/cs unknown
- 1982-06-30 US US06/393,656 patent/US4478632A/en not_active Expired - Fee Related
- 1982-06-30 NO NO822260A patent/NO154683C/no unknown
- 1982-07-01 PL PL1982237215A patent/PL138045B1/pl unknown
- 1982-07-01 SE SE8204077A patent/SE456643B/sv not_active IP Right Cessation
- 1982-07-01 PT PT75172A patent/PT75172B/pt not_active IP Right Cessation
- 1982-07-01 BE BE2/59759A patent/BE893716A/nl not_active IP Right Cessation
- 1982-07-01 ZA ZA824698A patent/ZA824698B/xx unknown
- 1982-07-01 RO RO108039A patent/RO85736B/ro unknown
- 1982-07-01 FI FI822346A patent/FI71922C/fi not_active IP Right Cessation
- 1982-07-02 IT IT22206/82A patent/IT1190903B/it active
- 1982-07-02 JP JP57114102A patent/JPS5849684A/ja active Granted
- 1982-07-02 DD DD82241372A patent/DD208972A5/de not_active IP Right Cessation
- 1982-07-02 HU HU822179A patent/HU190401B/hu not_active IP Right Cessation
- 1982-07-02 CA CA000406484A patent/CA1190059A/en not_active Expired
- 1982-07-02 MX MX193431A patent/MX159933A/es unknown
- 1982-07-02 BR BR8203890A patent/BR8203890A/pt not_active IP Right Cessation
- 1982-07-02 YU YU1444/82A patent/YU42778B/xx unknown
- 1982-07-02 ES ES513684A patent/ES513684A0/es active Granted
- 1982-07-03 EG EG396/82A patent/EG15823A/xx active
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |