DK104885C - Fremgangsmåde til syntese af urinstof af ammoniak og carbondioxid med tilbageføring af ikke til urinstof omsat ammoniumcarbamat og overskydende ammoniak. - Google Patents
Fremgangsmåde til syntese af urinstof af ammoniak og carbondioxid med tilbageføring af ikke til urinstof omsat ammoniumcarbamat og overskydende ammoniak.Info
- Publication number
- DK104885C DK104885C DK182961AA DK182961A DK104885C DK 104885 C DK104885 C DK 104885C DK 182961A A DK182961A A DK 182961AA DK 182961 A DK182961 A DK 182961A DK 104885 C DK104885 C DK 104885C
- Authority
- DK
- Denmark
- Prior art keywords
- urea
- ammonia
- synthesis
- return
- carbon dioxide
- 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
-
- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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 |
---|---|---|---|
CH859760A CH387015A (de) | 1960-07-28 | 1960-07-28 | Verfahren zur Rückführung von Kohlendioxyd und Ammoniak bei der Harnstoffsynthese |
Publications (1)
Publication Number | Publication Date |
---|---|
DK104885C true DK104885C (da) | 1966-07-18 |
Family
ID=4342422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK182961AA DK104885C (da) | 1960-07-28 | 1961-05-04 | Fremgangsmåde til syntese af urinstof af ammoniak og carbondioxid med tilbageføring af ikke til urinstof omsat ammoniumcarbamat og overskydende ammoniak. |
Country Status (9)
Country | Link |
---|---|
US (1) | US3248425A (da) |
BE (1) | BE605557A (da) |
CH (1) | CH387015A (da) |
DE (1) | DE1252198B (da) |
DK (1) | DK104885C (da) |
FI (1) | FI40710B (da) |
GB (1) | GB983812A (da) |
NL (1) | NL265331A (da) |
SE (1) | SE308517B (da) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3541146A (en) * | 1966-11-29 | 1970-11-17 | Inventa Ag | Process for the separation and recirculation of unreacted starting gases in the urea synthesis |
US3668250A (en) * | 1969-08-19 | 1972-06-06 | Chemical Construction Corp | Urea synthesis process |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1429483A (en) * | 1920-07-09 | 1922-09-19 | Basf Ag | Process of manufacturing urea |
DE372262C (de) * | 1920-08-17 | 1923-03-26 | Basf Ag | Verfahren zur Darstellung von Harnstoff |
US2848493A (en) * | 1955-06-27 | 1958-08-19 | Allied Chem | Process for synthesis of urea |
-
0
- DE DENDAT1252198D patent/DE1252198B/de active Pending
- NL NL265331D patent/NL265331A/xx unknown
-
1960
- 1960-07-28 CH CH859760A patent/CH387015A/de unknown
-
1961
- 1961-05-04 DK DK182961AA patent/DK104885C/da active
- 1961-05-13 FI FI0942/61A patent/FI40710B/fi active
- 1961-06-29 BE BE605557A patent/BE605557A/fr unknown
- 1961-07-11 US US123293A patent/US3248425A/en not_active Expired - Lifetime
- 1961-07-26 SE SE7664/61A patent/SE308517B/xx unknown
- 1961-07-28 GB GB27494/61A patent/GB983812A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FI40710B (da) | 1969-01-31 |
DE1252198B (da) | 1900-01-01 |
GB983812A (en) | 1965-02-17 |
BE605557A (fr) | 1961-11-16 |
US3248425A (en) | 1966-04-26 |
CH387015A (de) | 1965-01-31 |
SE308517B (da) | 1969-02-17 |
NL265331A (da) | 1900-01-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NL139282B (nl) | Werkwijze voor het afzonderlijk winnen van zwaveldioxyde en ammoniak, uit watervrij ammoniumsulfaat. | |
AR204277A1 (es) | Procedimiento integrado para la sintetesis de la urea y del amoniaco | |
DK107326C (da) | Herbicid og fremgangsmåde til fremstilling af et benzensulfonylcarbamat eller alkalimetal-, ammonium- eller aminsalte deraf til anvendelse i herbicidet. | |
DK118013B (da) | Fremgangsmåde til oparbejdning af den ved urinstofsyntese ud fra ammoniak og carbondioxid udvundne synteseblanding. | |
DK104885C (da) | Fremgangsmåde til syntese af urinstof af ammoniak og carbondioxid med tilbageføring af ikke til urinstof omsat ammoniumcarbamat og overskydende ammoniak. | |
ES392715A1 (es) | Procedimiento de sintesis de urea. | |
AT238213B (de) | Verfahren zur Herstellung eines hochreinen, insbesondere von Biuret und Ammoniak freien geschmolzenen Harnstoffs | |
DK104132C (da) | Fremgangsmåde ved fremstilling af urinstof ud fra carbondioxid og ammoniak. | |
NL7705973A (nl) | Werkwijze voor de katalytische omzetting van een ammoniumsulfaat in zwaveldioxyde en ammoniak. | |
ZM17669A1 (en) | Process for the production of urea from a solution containing ammonium carbamate,ammonia and water,with a total recycle of ammonia and carbon dioxide which were not transformed | |
FR1186458A (fr) | Procédé de synthèse de l'ammoniac et catalyseur destiné, en particulier, à ce procédé | |
NL138774B (nl) | Werkwijze voor het bereiden van ureum uit ammoniak en kooldioxyde. | |
AT249074B (de) | Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd | |
AT245577B (de) | Verfahren zur Rückführung von nicht umgesetztem Carbamat bei der Harnstoffsynthese aus Ammoniak und Kohlendioxyd | |
CA609695A (en) | Urea synthesis using excess ammonia | |
FI40710C (fi) | Förfarande för syntes av urinstoff av ammoniak och karbondioxid med tillbakaföring till reaktoren av icke till urinstoff omsatt ammoniumkarbamat och överskott av ammoniak | |
AU262869B2 (en) | A process for returned carbon dioxide and ammonia inthe synthesis of urea | |
CA541082A (en) | Urea process using alkali metal cyanate, ammonia and carbon dioxide | |
CA643738A (en) | Production of urea from ammonia and co2 | |
AU731861A (en) | A process for returned carbon dioxide and ammonia inthe synthesis of urea | |
GB823449A (en) | Fluid fertilisers | |
CA559465A (en) | Synthesis of guanidine from so2, co2 and nh3 | |
TR18243A (tr) | Islah edilmis hararet istihsali ve amonyum karbomat tekrar devrettirilmesi suretiile urea sentezi | |
GR22189B (el) | Συστημα παραγωγης ανυδρου αμμωνιας και υδροξειδιου του αμμωνιου. | |
CA536511A (en) | Urea process using ammonia and carbon dioxide |