CA996136A - Process for preparing urea - Google Patents
Process for preparing ureaInfo
- Publication number
- CA996136A CA996136A CA173,671A CA173671A CA996136A CA 996136 A CA996136 A CA 996136A CA 173671 A CA173671 A CA 173671A CA 996136 A CA996136 A CA 996136A
- 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)
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 |
---|---|
CA996136A true CA996136A (en) | 1976-08-31 |
Family
ID=19816254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA173,671A Expired CA996136A (en) | 1972-06-12 | 1973-06-11 | Process for preparing urea |
Country Status (28)
Country | Link |
---|---|
US (1) | US3936500A (pl) |
JP (1) | JPS5734258B2 (pl) |
AR (1) | AR194803A1 (pl) |
AT (1) | AT347965B (pl) |
AU (1) | AU474236B2 (pl) |
BE (1) | BE800798A (pl) |
BG (1) | BG26810A3 (pl) |
BR (1) | BR7304377D0 (pl) |
CA (1) | CA996136A (pl) |
CS (1) | CS168033B2 (pl) |
DD (1) | DD107023A5 (pl) |
DE (1) | DE2329733C2 (pl) |
ES (1) | ES415803A1 (pl) |
FR (1) | FR2187770B1 (pl) |
GB (1) | GB1428429A (pl) |
HU (1) | HU175487B (pl) |
IE (1) | IE37788B1 (pl) |
IL (1) | IL42469A (pl) |
IN (1) | IN139310B (pl) |
IT (1) | IT985413B (pl) |
NL (1) | NL172058C (pl) |
NO (1) | NO149734C (pl) |
PL (1) | PL89777B1 (pl) |
SE (1) | SE402280B (pl) |
SU (1) | SU474139A3 (pl) |
TR (1) | TR17309A (pl) |
YU (1) | YU156173A (pl) |
ZA (1) | ZA733937B (pl) |
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 |
---|---|---|---|---|
NL230353A (pl) * | 1958-08-08 | 1900-01-01 | ||
NL101446C (pl) * | 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 ZA ZA733937A patent/ZA733937B/xx unknown
- 1973-06-11 BG BG023852A patent/BG26810A3/xx unknown
- 1973-06-11 HU HU73KU472A patent/HU175487B/hu unknown
- 1973-06-11 IT IT50677/73A patent/IT985413B/it active
- 1973-06-11 SU SU1929884A patent/SU474139A3/ru active
- 1973-06-11 ES ES415803A patent/ES415803A1/es not_active Expired
- 1973-06-11 CA CA173,671A patent/CA996136A/en not_active Expired
- 1973-06-12 CS CS734251A patent/CS168033B2/cs unknown
- 1973-06-12 US US05/369,391 patent/US3936500A/en not_active Expired - Lifetime
- 1973-06-12 GB GB2787573A patent/GB1428429A/en not_active Expired
- 1973-06-12 DE DE2329733A patent/DE2329733C2/de not_active Expired
- 1973-06-12 TR TR17309A patent/TR17309A/xx unknown
- 1973-06-12 IE IE953/73A patent/IE37788B1/xx 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 JP JP6625473A patent/JPS5734258B2/ja not_active Expired
- 1973-06-12 BR BR4377/73A patent/BR7304377D0/pt unknown
- 1973-06-12 SE SE7308266A patent/SE402280B/xx unknown
- 1973-06-12 AR AR248535A patent/AR194803A1/es active
- 1973-06-12 PL PL1973163288A patent/PL89777B1/pl unknown
- 1973-06-12 YU YU01561/73A patent/YU156173A/xx unknown
- 1973-06-12 DD DD171486A patent/DD107023A5/xx unknown
- 1973-06-12 BE BE132170A patent/BE800798A/xx not_active IP Right Cessation
- 1973-06-12 AU AU56856/73A patent/AU474236B2/en not_active Expired
- 1973-07-02 IN IN1535/CAL/73A patent/IN139310B/en unknown
Also Published As
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