AT290545B - Verfahren zur Herstellung von Harnstoff mit niedrigem Carbamatgehalt - Google Patents
Verfahren zur Herstellung von Harnstoff mit niedrigem CarbamatgehaltInfo
- Publication number
- AT290545B AT290545B AT598768A AT598768A AT290545B AT 290545 B AT290545 B AT 290545B AT 598768 A AT598768 A AT 598768A AT 598768 A AT598768 A AT 598768A AT 290545 B AT290545 B AT 290545B
- Authority
- AT
- Austria
- Prior art keywords
- production
- carbamate urea
- low
- low carbamate
- urea
- Prior art date
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
- C07C273/04—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 from carbon dioxide and ammonia
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
- H01J17/066—Cold cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
- H01J2893/0065—Electrode systems
- H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2102767 | 1967-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT290545B true AT290545B (de) | 1971-06-11 |
Family
ID=11175595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT598768A AT290545B (de) | 1967-09-29 | 1968-06-21 | Verfahren zur Herstellung von Harnstoff mit niedrigem Carbamatgehalt |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS5432767B1 (cs) |
| AT (1) | AT290545B (cs) |
| BE (1) | BE719035A (cs) |
| CH (1) | CH487855A (cs) |
| CS (1) | CS155191B2 (cs) |
| DE (1) | DE1768776B2 (cs) |
| DK (1) | DK118396B (cs) |
| ES (1) | ES358855A1 (cs) |
| FR (1) | FR1576811A (cs) |
| GB (1) | GB1184004A (cs) |
| IE (1) | IE32209B1 (cs) |
| LU (1) | LU56630A1 (cs) |
| NL (1) | NL161137C (cs) |
| NO (1) | NO145949C (cs) |
| SE (1) | SE373574B (cs) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL174548C (nl) * | 1977-05-05 | 1988-05-16 | Montedison Spa | Werkwijze voor het bereiden van ureum door reaktie van ammoniak en kooldioxyde. |
| NL7713190A (nl) * | 1977-11-30 | 1979-06-01 | Unie Van Kunstmestfab Bv | Werkwijze en inrichting voor het verwijderen van ammoniumcarbamaat uit een ureumsynthese- oplossing. |
| IT1209532B (it) * | 1984-04-20 | 1989-08-30 | Snam Progetti | Processo per la sintesi di urea e materiale utilizzato nello stesso. |
| IN169678B (cs) * | 1987-08-13 | 1991-11-30 | Austral Pacific Fertilizers | |
| IT1274362B (it) | 1995-02-16 | 1997-07-17 | Snam Progetti | Procedimento ad alta resa per la sintesi dell'urea |
| ITMI20120013A1 (it) | 2012-01-09 | 2013-07-10 | Saipem Spa | Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper |
| US20240092730A1 (en) | 2021-12-20 | 2024-03-21 | Stamicarbon B.V. | Thermal stripping urea production |
-
1968
- 1968-06-21 NO NO2461/68A patent/NO145949C/no unknown
- 1968-06-21 DK DK296968AA patent/DK118396B/da unknown
- 1968-06-21 AT AT598768A patent/AT290545B/de not_active IP Right Cessation
- 1968-06-25 NL NL6808895.A patent/NL161137C/xx not_active IP Right Cessation
- 1968-06-27 GB GB30814/68A patent/GB1184004A/en not_active Expired
- 1968-06-28 SE SE6808922A patent/SE373574B/xx unknown
- 1968-06-28 DE DE19681768776 patent/DE1768776B2/de not_active Ceased
- 1968-07-08 JP JP4720368A patent/JPS5432767B1/ja active Pending
- 1968-07-25 IE IE894/68A patent/IE32209B1/xx unknown
- 1968-08-01 LU LU56630D patent/LU56630A1/xx unknown
- 1968-08-02 BE BE719035D patent/BE719035A/xx not_active IP Right Cessation
- 1968-08-02 FR FR1576811D patent/FR1576811A/fr not_active Expired
- 1968-08-03 CH CH1166268A patent/CH487855A/fr not_active IP Right Cessation
- 1968-09-16 CS CS686495A patent/CS155191B2/cs unknown
- 1968-09-25 ES ES358855A patent/ES358855A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1768776B2 (de) | 1973-05-03 |
| ES358855A1 (es) | 1970-05-16 |
| CH487855A (fr) | 1970-03-31 |
| CS155191B2 (en) | 1974-05-30 |
| GB1184004A (en) | 1970-03-11 |
| FR1576811A (cs) | 1969-08-01 |
| IE32209L (en) | 1969-03-29 |
| DE1768776A1 (de) | 1971-09-16 |
| JPS5432767B1 (cs) | 1979-10-16 |
| NL161137C (nl) | 1980-01-15 |
| NL6808895A (cs) | 1969-04-01 |
| NL161137B (nl) | 1979-08-15 |
| BE719035A (cs) | 1969-01-16 |
| SE373574B (sv) | 1975-02-10 |
| LU56630A1 (cs) | 1968-11-14 |
| DK118396B (da) | 1970-08-17 |
| NO145949C (no) | 1982-06-30 |
| NO145949B (no) | 1982-03-22 |
| IE32209B1 (en) | 1973-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELA | Expired due to lapse of time |