AT250980B - Verfahren zum Verdampfen von Harnstoff - Google Patents
Verfahren zum Verdampfen von HarnstoffInfo
- Publication number
- AT250980B AT250980B AT279065A AT279065A AT250980B AT 250980 B AT250980 B AT 250980B AT 279065 A AT279065 A AT 279065A AT 279065 A AT279065 A AT 279065A AT 250980 B AT250980 B AT 250980B
- Authority
- AT
- Austria
- Prior art keywords
- vaporizing
- urea
- vaporizing urea
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title 1
- 239000004202 carbamide Substances 0.000 title 1
- 230000008016 vaporization Effects 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
- C07D251/60—Preparation of melamine from urea or from carbon dioxide and ammonia
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/14—Cyanic or isocyanic acid; Salts thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB76108A DE1208306B (de) | 1964-03-28 | 1964-03-28 | Verfahren zum Verdampfen von Harnstoff fuer die Herstellung von Melamin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT250980B true AT250980B (de) | 1966-12-12 |
Family
ID=6978943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT279065A AT250980B (de) | 1964-03-28 | 1965-03-26 | Verfahren zum Verdampfen von Harnstoff |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3300492A (de) |
| AT (1) | AT250980B (de) |
| BE (1) | BE661694A (de) |
| CH (1) | CH445503A (de) |
| DE (1) | DE1208306B (de) |
| GB (1) | GB1092662A (de) |
| NL (1) | NL6503911A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3138419A1 (de) * | 1981-09-26 | 1983-04-14 | Basf Ag, 6700 Ludwigshafen | Verfahren zur verbesserung der melaminqualitaet durch reaktivierung von bei der melaminsynthese eingesetzten katalysatoren |
| US7325517B2 (en) * | 2005-04-29 | 2008-02-05 | Tendix Development, Llc | Radial impulse engine, pump, and compressor systems, and associated methods of operation |
| RU2495876C1 (ru) * | 2012-09-10 | 2013-10-20 | Открытое Акционерное Общество "Научно-Исследовательский И Проектный Институт Карбамида И Продуктов Органического Синтеза" (Оао Ниик) | Способ очистки меламина |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3095416A (en) * | 1963-06-25 | Urea to melamine process | ||
| US2712491A (en) * | 1954-03-16 | 1955-07-05 | American Cyanamid Co | Preparation of ammonium cyanate from urea |
| GB908609A (en) * | 1959-10-22 | 1962-10-24 | Grace W R & Co | Improvements in or relating to the production of nitrogenous vapour mixtures |
| US3239522A (en) * | 1963-03-12 | 1966-03-08 | Chemical Construction Corp | Synthesis of urea and melamine |
-
1964
- 1964-03-28 DE DEB76108A patent/DE1208306B/de active Pending
-
1965
- 1965-03-15 CH CH356665A patent/CH445503A/de unknown
- 1965-03-23 US US442175A patent/US3300492A/en not_active Expired - Lifetime
- 1965-03-26 GB GB12863/65A patent/GB1092662A/en not_active Expired
- 1965-03-26 AT AT279065A patent/AT250980B/de active
- 1965-03-26 BE BE661694D patent/BE661694A/xx unknown
- 1965-03-26 NL NL6503911A patent/NL6503911A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6503911A (de) | 1965-09-29 |
| GB1092662A (en) | 1967-11-29 |
| CH445503A (de) | 1967-10-31 |
| US3300492A (en) | 1967-01-24 |
| DE1208306B (de) | 1966-01-05 |
| BE661694A (de) | 1965-09-27 |
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