IE32209B1 - Process for the production of urea having a low carbamate content - Google Patents
Process for the production of urea having a low carbamate contentInfo
- Publication number
- IE32209B1 IE32209B1 IE894/68A IE89468A IE32209B1 IE 32209 B1 IE32209 B1 IE 32209B1 IE 894/68 A IE894/68 A IE 894/68A IE 89468 A IE89468 A IE 89468A IE 32209 B1 IE32209 B1 IE 32209B1
- Authority
- IE
- Ireland
- Prior art keywords
- urea
- excess
- solution
- synthesis zone
- gaseous
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 5
- 239000004202 carbamide Substances 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 title 1
- 230000015572 biosynthetic process Effects 0.000 abstract 5
- 238000003786 synthesis reaction Methods 0.000 abstract 5
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 abstract 3
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 abstract 3
- 238000000354 decomposition reaction Methods 0.000 abstract 3
- 239000007795 chemical reaction product Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000010408 film Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000002317 scanning near-field acoustic microscopy Methods 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
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 (2)
| Publication Number | Publication Date |
|---|---|
| IE32209L IE32209L (en) | 1969-03-29 |
| IE32209B1 true IE32209B1 (en) | 1973-05-16 |
Family
ID=11175595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE894/68A IE32209B1 (en) | 1967-09-29 | 1968-07-25 | Process for the production of urea having a low carbamate content |
Country Status (15)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO150512C (no) * | 1977-05-05 | 1984-10-31 | Montedison Spa | Fremgangsmaate ved fremstilling av urea. |
| 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 (enrdf_load_stackoverflow) * | 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 |
| WO2023121443A1 (en) | 2021-12-20 | 2023-06-29 | Stamicarbon B.V. | Thermal stripping urea production |
-
1968
- 1968-06-21 AT AT598768A patent/AT290545B/de not_active IP Right Cessation
- 1968-06-21 NO NO2461/68A patent/NO145949C/no unknown
- 1968-06-21 DK DK296968AA patent/DK118396B/da unknown
- 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 |
|---|---|
| FR1576811A (enrdf_load_stackoverflow) | 1969-08-01 |
| CS155191B2 (en) | 1974-05-30 |
| SE373574B (sv) | 1975-02-10 |
| NO145949B (no) | 1982-03-22 |
| NL161137C (nl) | 1980-01-15 |
| DE1768776A1 (de) | 1971-09-16 |
| GB1184004A (en) | 1970-03-11 |
| IE32209L (en) | 1969-03-29 |
| JPS5432767B1 (enrdf_load_stackoverflow) | 1979-10-16 |
| LU56630A1 (enrdf_load_stackoverflow) | 1968-11-14 |
| ES358855A1 (es) | 1970-05-16 |
| DE1768776B2 (de) | 1973-05-03 |
| AT290545B (de) | 1971-06-11 |
| NL161137B (nl) | 1979-08-15 |
| BE719035A (enrdf_load_stackoverflow) | 1969-01-16 |
| NO145949C (no) | 1982-06-30 |
| DK118396B (da) | 1970-08-17 |
| CH487855A (fr) | 1970-03-31 |
| NL6808895A (enrdf_load_stackoverflow) | 1969-04-01 |
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