GB1428429A - Process for preparing urea - Google Patents
Process for preparing ureaInfo
- Publication number
- GB1428429A GB1428429A GB2787573A GB2787573A GB1428429A GB 1428429 A GB1428429 A GB 1428429A GB 2787573 A GB2787573 A GB 2787573A GB 2787573 A GB2787573 A GB 2787573A GB 1428429 A GB1428429 A GB 1428429A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- gaseous medium
- june
- gaseous
- stripped
- 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
- 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 1
- 230000015572 biosynthetic process Effects 0.000 abstract 3
- 238000003786 synthesis reaction Methods 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 230000001174 ascending effect Effects 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 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
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 |
|---|---|---|---|
| NLAANVRAGE7207940,A NL172058C (nl) | 1972-06-12 | 1972-06-12 | Werkwijze voor de bereiding van ureum. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1428429A true GB1428429A (en) | 1976-03-17 |
Family
ID=19816254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2787573A Expired GB1428429A (en) | 1972-06-12 | 1973-06-12 | Process for preparing urea |
Country Status (28)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE790015A (fr) * | 1971-10-19 | 1973-04-12 | Mavrovic Ivo | Synthese de l'uree avec conversion et recuperation de chaleur ameliorees |
| US4036878A (en) * | 1972-06-12 | 1977-07-19 | Unie Van Kunstmestfabrieken, B.V. | Process for preparing urea |
| IT1065422B (it) * | 1976-12-23 | 1985-02-25 | Snam Progetti | Processo ammoniaca-urea integrato per la produzione di urea |
| 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. |
| IT1174366B (it) * | 1978-07-24 | 1987-07-01 | Ortu Francesco | Decompositore di carbammato per produzione industriale di urea |
| JPS5573651A (en) * | 1978-11-30 | 1980-06-03 | Toyo Eng Corp | Preparation of urea |
| JPS5750954A (en) * | 1980-09-12 | 1982-03-25 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| US4433146A (en) * | 1982-04-07 | 1984-02-21 | Stamicarbon B.V. | Process for the preparation of melamine |
| NL8502227A (nl) * | 1985-08-12 | 1987-03-02 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8502228A (nl) * | 1985-08-12 | 1987-03-02 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| US5779861A (en) * | 1993-09-03 | 1998-07-14 | Farmland Industries, Inc. | Method for treating process condensate |
| NL1004977C2 (nl) * | 1997-01-13 | 1998-07-15 | Dsm Nv | Methode om de capaciteit van een bestaand ureum proces te verhogen. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL102507C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1958-08-08 | 1900-01-01 | ||
| NL250349A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1960-04-08 | |||
| US3544628A (en) * | 1965-09-20 | 1970-12-01 | Pullman Inc | Urea synthesis |
-
1972
- 1972-06-12 NL NLAANVRAGE7207940,A patent/NL172058C/xx not_active IP Right Cessation
-
1973
- 1973-06-08 NO NO2412/73A patent/NO149734C/no unknown
- 1973-06-08 IL IL42469A patent/IL42469A/en unknown
- 1973-06-11 CA CA173,671A patent/CA996136A/en not_active Expired
- 1973-06-11 IT IT50677/73A patent/IT985413B/it active
- 1973-06-11 ES ES415803A patent/ES415803A1/es not_active Expired
- 1973-06-11 ZA ZA733937A patent/ZA733937B/xx unknown
- 1973-06-11 SU SU1929884A patent/SU474139A3/ru active
- 1973-06-11 BG BG023852A patent/BG26810A3/xx unknown
- 1973-06-11 HU HU73KU472A patent/HU175487B/hu unknown
- 1973-06-12 SE SE7308266A patent/SE402280B/xx unknown
- 1973-06-12 BR BR4377/73A patent/BR7304377D0/pt unknown
- 1973-06-12 BE BE132170A patent/BE800798A/xx not_active IP Right Cessation
- 1973-06-12 CS CS734251A patent/CS168033B2/cs unknown
- 1973-06-12 AT AT512273A patent/AT347965B/de not_active IP Right Cessation
- 1973-06-12 FR FR7321250A patent/FR2187770B1/fr not_active Expired
- 1973-06-12 YU YU01561/73A patent/YU156173A/xx unknown
- 1973-06-12 TR TR17309A patent/TR17309A/xx unknown
- 1973-06-12 DD DD171486A patent/DD107023A5/xx unknown
- 1973-06-12 AU AU56856/73A patent/AU474236B2/en not_active Expired
- 1973-06-12 IE IE953/73A patent/IE37788B1/xx unknown
- 1973-06-12 JP JP6625473A patent/JPS5734258B2/ja not_active Expired
- 1973-06-12 AR AR248535A patent/AR194803A1/es active
- 1973-06-12 GB GB2787573A patent/GB1428429A/en not_active Expired
- 1973-06-12 US US05/369,391 patent/US3936500A/en not_active Expired - Lifetime
- 1973-06-12 DE DE2329733A patent/DE2329733C2/de not_active Expired
- 1973-06-12 PL PL1973163288A patent/PL89777B1/pl unknown
- 1973-07-02 IN IN1535/CAL/73A patent/IN139310B/en unknown
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |