CA973564A - Process for preparing urea - Google Patents
Process for preparing ureaInfo
- Publication number
- CA973564A CA973564A CA131,228A CA131228A CA973564A CA 973564 A CA973564 A CA 973564A CA 131228 A CA131228 A CA 131228A CA 973564 A CA973564 A CA 973564A
- Authority
- CA
- Canada
- Prior art keywords
- preparing urea
- urea
- preparing
- 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
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)
- Microwave Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7019056,A NL168506C (nl) | 1970-12-31 | 1970-12-31 | Werkwijze voor de bereiding van ureum. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA973564A true CA973564A (en) | 1975-08-26 |
Family
ID=19811940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA131,228A Expired CA973564A (en) | 1970-12-31 | 1971-12-29 | Process for preparing urea |
Country Status (23)
| Country | Link |
|---|---|
| US (1) | US3867442A (es) |
| JP (1) | JPS511691B1 (es) |
| AT (1) | AT319965B (es) |
| BE (1) | BE777470A (es) |
| BG (1) | BG26665A3 (es) |
| BR (1) | BR7108671D0 (es) |
| CA (1) | CA973564A (es) |
| CS (1) | CS171245B2 (es) |
| DE (1) | DE2165711C3 (es) |
| ES (1) | ES398493A1 (es) |
| FI (1) | FI54914C (es) |
| FR (1) | FR2121068A5 (es) |
| GB (1) | GB1365707A (es) |
| HU (1) | HU168681B (es) |
| IT (1) | IT945737B (es) |
| NL (1) | NL168506C (es) |
| NO (1) | NO135246C (es) |
| PL (1) | PL90701B1 (es) |
| RO (1) | RO63722A (es) |
| SE (1) | SE420719B (es) |
| SU (1) | SU651692A3 (es) |
| YU (1) | YU39704B (es) |
| ZA (1) | ZA718580B (es) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4092358A (en) * | 1968-09-03 | 1978-05-30 | Snamprogetti S.P.A. | Process for the production of urea having a low carbamate content |
| BE790015A (fr) * | 1971-10-19 | 1973-04-12 | Mavrovic Ivo | Synthese de l'uree avec conversion et recuperation de chaleur ameliorees |
| CA1017535A (en) * | 1974-03-29 | 1977-09-20 | Charles Vydra | Method and apparatus for the continuous condensation of a gaseous mixture of ammonia, carbon dioxide and water vapour |
| NL7612162A (nl) * | 1976-11-03 | 1978-05-08 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van een ureum- oplossing uit nh3 en co2. |
| NO150512C (no) * | 1977-05-05 | 1984-10-31 | Montedison Spa | Fremgangsmaate ved fremstilling av urea. |
| JPS55119464A (en) * | 1979-03-09 | 1980-09-13 | Ee K Deyuaru Kk | Sealant coating device to screw thread of joint and valve |
| NL8101174A (nl) * | 1981-03-11 | 1982-10-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8104040A (nl) * | 1981-09-01 | 1983-04-05 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8104039A (nl) * | 1981-09-01 | 1983-04-05 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8201652A (nl) * | 1982-04-21 | 1983-11-16 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8303888A (nl) * | 1983-11-13 | 1985-06-03 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| WO1996020170A1 (en) * | 1994-12-23 | 1996-07-04 | Urea Casale S.A. | Process and plant for urea production with reaction spaces having differentiated yields |
| IT1275451B (it) † | 1995-06-30 | 1997-08-07 | Snam Progetti | Procedimento per la sintesi dell'urea comprendente due separate zone di reazione |
| JP3987607B2 (ja) * | 1996-10-07 | 2007-10-10 | 東洋エンジニアリング株式会社 | 改良された尿素合成方法および装置 |
| EP1491526A1 (en) * | 2003-06-27 | 2004-12-29 | Urea Casale S.A. | Process and plant for urea production |
| US7238231B1 (en) * | 2006-11-16 | 2007-07-03 | Tronox Llc | Process for manufacturing zirconia-treated titanium dioxide pigments |
| DE102010009502A1 (de) * | 2010-02-26 | 2011-09-01 | Spawnt Private S.À.R.L. | Verfahren zur Herstellung von Harnstoff |
| CN110590605B (zh) * | 2019-10-11 | 2021-08-24 | 重庆化工职业学院 | 一种氨基甲酸甲酯的生产方法 |
| CN114733336A (zh) * | 2022-04-08 | 2022-07-12 | 华润电力(宁武)有限公司 | 一种防止尿素溶液输送管路堵塞的系统 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3310376A (en) * | 1963-09-09 | 1967-03-21 | Chemical Construction Corp | Process for combined production of ammonia and urea |
| US3406201A (en) * | 1965-06-18 | 1968-10-15 | Exxon Research Engineering Co | Urea synthesis |
| US3503970A (en) * | 1967-07-19 | 1970-03-31 | Mitsui Toatsu Chemicals | Integrated process for producing urea and melamine |
-
1970
- 1970-12-31 NL NLAANVRAGE7019056,A patent/NL168506C/xx not_active IP Right Cessation
-
1971
- 1971-12-22 ZA ZA718580A patent/ZA718580B/xx unknown
- 1971-12-28 SU SU711731621A patent/SU651692A3/ru active
- 1971-12-28 US US213115A patent/US3867442A/en not_active Expired - Lifetime
- 1971-12-28 JP JP47003828A patent/JPS511691B1/ja active Pending
- 1971-12-29 CA CA131,228A patent/CA973564A/en not_active Expired
- 1971-12-29 FR FR7147281A patent/FR2121068A5/fr not_active Expired
- 1971-12-29 PL PL1971152555A patent/PL90701B1/pl unknown
- 1971-12-29 NO NO4930/71A patent/NO135246C/no unknown
- 1971-12-29 AT AT1121671A patent/AT319965B/de not_active IP Right Cessation
- 1971-12-29 GB GB6034371A patent/GB1365707A/en not_active Expired
- 1971-12-29 BE BE777470A patent/BE777470A/xx not_active IP Right Cessation
- 1971-12-29 HU HUSA2297A patent/HU168681B/hu unknown
- 1971-12-30 CS CS9139A patent/CS171245B2/cs unknown
- 1971-12-30 SE SE7116946A patent/SE420719B/xx unknown
- 1971-12-30 BR BR8671/71A patent/BR7108671D0/pt unknown
- 1971-12-30 IT IT55121/71A patent/IT945737B/it active
- 1971-12-30 ES ES398493A patent/ES398493A1/es not_active Expired
- 1971-12-30 RO RO7100069266A patent/RO63722A/ro unknown
- 1971-12-30 DE DE2165711A patent/DE2165711C3/de not_active Expired
- 1971-12-31 FI FI3764/71A patent/FI54914C/fi active
- 1971-12-31 YU YU3326/71A patent/YU39704B/xx unknown
- 1971-12-31 BG BG019391A patent/BG26665A3/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU3730171A (en) | 1973-06-28 |
| ES398493A1 (es) | 1974-08-16 |
| BE777470A (fr) | 1972-06-29 |
| NL168506C (nl) | 1982-04-16 |
| JPS511691B1 (es) | 1976-01-20 |
| NO135246B (es) | 1976-11-29 |
| IT945737B (it) | 1973-05-10 |
| PL90701B1 (es) | 1977-01-31 |
| NL7019056A (es) | 1972-07-04 |
| BG26665A3 (bg) | 1979-05-15 |
| HU168681B (es) | 1976-06-28 |
| CS171245B2 (es) | 1976-10-29 |
| NL168506B (nl) | 1981-11-16 |
| FI54914C (fi) | 1979-04-10 |
| FR2121068A5 (es) | 1972-08-18 |
| GB1365707A (en) | 1974-09-04 |
| US3867442A (en) | 1975-02-18 |
| YU332671A (en) | 1982-02-28 |
| SU651692A3 (ru) | 1979-03-05 |
| DE2165711C3 (de) | 1974-01-31 |
| SE420719B (sv) | 1981-10-26 |
| ZA718580B (en) | 1972-09-27 |
| NO135246C (es) | 1977-03-09 |
| DE2165711B2 (de) | 1973-06-28 |
| AT319965B (de) | 1975-01-27 |
| YU39704B (en) | 1985-04-30 |
| RO63722A (fr) | 1978-12-15 |
| DE2165711A1 (de) | 1972-07-06 |
| FI54914B (fi) | 1978-12-29 |
| BR7108671D0 (pt) | 1973-05-15 |
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