CA1146973A - Process for the production of urea grains with improved properties - Google Patents
Process for the production of urea grains with improved propertiesInfo
- Publication number
- CA1146973A CA1146973A CA000353129A CA353129A CA1146973A CA 1146973 A CA1146973 A CA 1146973A CA 000353129 A CA000353129 A CA 000353129A CA 353129 A CA353129 A CA 353129A CA 1146973 A CA1146973 A CA 1146973A
- Authority
- CA
- Canada
- Prior art keywords
- urea
- dicyandiamide
- grains
- weight
- molten
- 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
- 239000004202 carbamide Substances 0.000 title claims abstract description 55
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims description 7
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract 3
- 238000005299 abrasion Methods 0.000 abstract description 6
- 235000013877 carbamide Nutrition 0.000 description 35
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 239000000654 additive Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- 230000000996 additive effect Effects 0.000 description 5
- 241001062472 Stokellia anisodon Species 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- XJBNELXWSXDUFP-UHFFFAOYSA-N 1,1,3-tris(hydroxymethyl)urea Chemical compound OCNC(=O)N(CO)CO XJBNELXWSXDUFP-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229960005419 nitrogen Drugs 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C7/00—Fertilisers containing calcium or other cyanamides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP2922436.0 | 1979-06-01 | ||
| DE19792922436 DE2922436A1 (de) | 1979-06-01 | 1979-06-01 | Verfahren zur gewinnung von harnstoffkoernern mit verbesserten eigenschaften |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1146973A true CA1146973A (en) | 1983-05-24 |
Family
ID=6072317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000353129A Expired CA1146973A (en) | 1979-06-01 | 1980-05-30 | Process for the production of urea grains with improved properties |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0019881B1 (enrdf_load_html_response) |
| JP (1) | JPS565452A (enrdf_load_html_response) |
| AT (1) | ATE1095T1 (enrdf_load_html_response) |
| AU (1) | AU534680B2 (enrdf_load_html_response) |
| BR (1) | BR8003414A (enrdf_load_html_response) |
| CA (1) | CA1146973A (enrdf_load_html_response) |
| DE (1) | DE2922436A1 (enrdf_load_html_response) |
| IE (1) | IE50427B1 (enrdf_load_html_response) |
| IN (1) | IN153885B (enrdf_load_html_response) |
| PH (1) | PH16338A (enrdf_load_html_response) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7264746B2 (en) | 2002-10-18 | 2007-09-04 | Basic Solutions Limited | Urea based granule blend for ice-melting and reducing granule caking |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3140817C1 (de) * | 1981-10-13 | 1983-05-19 | Skw Trostberg Ag, 8223 Trostberg | Verwendung einer Dicyandiamid enthaltenden Mischung zur Hemmung der Nitrifikation |
| DE3144085A1 (de) * | 1981-11-06 | 1983-05-19 | Skw Trostberg Ag, 8223 Trostberg | Zusatzmittel zu duengern, insbesondere duengerloesungen |
| DE3237905A1 (de) * | 1982-10-13 | 1984-04-19 | Skw Trostberg Ag, 8223 Trostberg | Stickstoffduengemittel mit einem gehalt von nitrifikationshemmstoff |
| DE3543920A1 (de) * | 1985-12-12 | 1987-06-19 | Sueddeutsche Kalkstickstoff | Stickstoffduengemittel mit langzeitwirkung und verfahren zu seiner herstellung |
| US4994100A (en) * | 1988-12-29 | 1991-02-19 | Freeport Mcmoran Resource Partners | Homogeneous granular nitrogen fertilizer |
| AT397503B (de) * | 1992-03-18 | 1994-04-25 | Chemie Linz Gmbh | Mit einer melaminpulverschicht versehenes harnstoffgranulat |
| DE19744404A1 (de) * | 1997-10-08 | 1999-04-15 | Piesteritz Stickstoff | Verfahren zur Herstellung von Dicyandiamid enthaltenden Harnstoff-Düngemittel-Granulaten |
| MY141867A (en) | 2002-06-20 | 2010-07-16 | Vertex Pharma | Substituted pyrimidines useful as protein kinase inhibitors |
| AU2008247592A1 (en) | 2007-05-02 | 2008-11-13 | Vertex Pharmaceuticals Incorporated | Thiazoles and pyrazoles useful as kinase inhibitors |
| WO2010027921A1 (en) | 2008-09-03 | 2010-03-11 | Vertex Pharmaceuticals Incorporated | Co-crystals and pharmaceutical formulations comprising the same |
| DE102009036229B4 (de) | 2009-08-05 | 2015-02-12 | Skw Stickstoffwerke Piesteritz Gmbh | Antibackmittel für harnstoffbasierte Düngemittel, Düngemittelformulierungen mit diesem Antibackmittel und Verfahren zu deren Herstellung |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1232366A (fr) * | 1959-04-18 | 1960-10-07 | Azote Office Nat Ind | Engrais azotés nouveaux à nitrification temporairement inhibée |
| AT254206B (de) * | 1963-10-24 | 1967-05-10 | Lonza Ag | Verfahren zur Verbesserung der Lagereigenschaften von Harnstoff |
| NL7015284A (enrdf_load_html_response) * | 1969-10-22 | 1971-04-26 | ||
| DE2531962B2 (de) * | 1975-07-17 | 1977-05-18 | Süddeutsche Kalkstickstoff-Werke AG, 8223 Trostberg | Verfahren zur herstellung eines stickstoffduengemittels mit langzeitwirkung |
| DE2702284C2 (de) * | 1977-01-20 | 1985-01-31 | Skw Trostberg Ag, 8223 Trostberg | Stickstoffdüngemittel |
| DE2714601C2 (de) * | 1977-04-01 | 1984-12-06 | Skw Trostberg Ag, 8223 Trostberg | Verfahren zur Herstellung eines Harnstoff-Dicyandiamid-Düngemittels |
-
1979
- 1979-06-01 DE DE19792922436 patent/DE2922436A1/de not_active Ceased
-
1980
- 1980-05-15 IN IN581/CAL/80A patent/IN153885B/en unknown
- 1980-05-22 AU AU58649/80A patent/AU534680B2/en not_active Ceased
- 1980-05-23 EP EP80102893A patent/EP0019881B1/de not_active Expired
- 1980-05-23 AT AT80102893T patent/ATE1095T1/de active
- 1980-05-27 PH PH24068A patent/PH16338A/en unknown
- 1980-05-30 BR BR8003414A patent/BR8003414A/pt unknown
- 1980-05-30 IE IE1134/80A patent/IE50427B1/en unknown
- 1980-05-30 CA CA000353129A patent/CA1146973A/en not_active Expired
- 1980-06-02 JP JP7285380A patent/JPS565452A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7264746B2 (en) | 2002-10-18 | 2007-09-04 | Basic Solutions Limited | Urea based granule blend for ice-melting and reducing granule caking |
Also Published As
| Publication number | Publication date |
|---|---|
| IN153885B (enrdf_load_html_response) | 1984-08-25 |
| PH16338A (en) | 1983-09-05 |
| BR8003414A (pt) | 1981-01-05 |
| DE2922436A1 (de) | 1980-12-18 |
| JPS565452A (en) | 1981-01-20 |
| AU5864980A (en) | 1980-12-04 |
| AU534680B2 (en) | 1984-02-09 |
| IE50427B1 (en) | 1986-04-16 |
| ATE1095T1 (de) | 1982-06-15 |
| EP0019881B1 (de) | 1982-05-26 |
| IE801134L (en) | 1980-12-01 |
| EP0019881A1 (de) | 1980-12-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |