IN159537B - - Google Patents
Info
- Publication number
- IN159537B IN159537B IN520/CAL/83A IN520CA1983A IN159537B IN 159537 B IN159537 B IN 159537B IN 520CA1983 A IN520CA1983 A IN 520CA1983A IN 159537 B IN159537 B IN 159537B
- Authority
- IN
- India
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 |
|---|---|---|---|
| NL8201652A NL8201652A (nl) | 1982-04-21 | 1982-04-21 | Werkwijze voor de bereiding van ureum. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN159537B true IN159537B (de) | 1987-05-23 |
Family
ID=19839623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN520/CAL/83A IN159537B (de) | 1982-04-21 | 1983-04-28 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4539077A (de) |
| EP (1) | EP0093466B1 (de) |
| JP (1) | JPS58189153A (de) |
| DE (1) | DE3360512D1 (de) |
| IN (1) | IN159537B (de) |
| NL (1) | NL8201652A (de) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8303888A (nl) * | 1983-11-13 | 1985-06-03 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| DE3869490D1 (de) * | 1987-06-29 | 1992-04-30 | Atomic Energy Authority Uk | Verfahren zur elektrochemischen behandlung von stoffen. |
| NL8800259A (nl) * | 1988-02-04 | 1989-09-01 | Stamicarbon | Werkwijze voor het concentreren van een ureumoplossing. |
| US4966654A (en) * | 1988-09-19 | 1990-10-30 | Awd Technologies, Inc. | Soil and groundwater remediation system |
| IT1240675B (it) * | 1990-04-24 | 1993-12-17 | Snam Progetti | Procedimento per la concentrazione sotto vuoto di soluzioni di urea |
| US5316554A (en) * | 1992-06-03 | 1994-05-31 | Hansen Charles N | Method for processing crystalline ammonium carbamate |
| US5352335A (en) * | 1992-11-09 | 1994-10-04 | Albemarle Corporation | Groundwater treatment process |
| US5779861A (en) * | 1993-09-03 | 1998-07-14 | Farmland Industries, Inc. | Method for treating process condensate |
| US5643420A (en) * | 1993-09-03 | 1997-07-01 | Farmland Industries, Inc. | Method for treating process condensate |
| US5385646A (en) * | 1993-09-03 | 1995-01-31 | Farmland Industries, Inc. | Method of treating chemical process effluent |
| CA2141886E (en) | 1994-05-11 | 1999-10-12 | Federico Zardi | Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature |
| CZ198197A3 (cs) * | 1994-12-23 | 1998-04-15 | Urea Casale S. A. | Způsob výroby močoviny, zařízení k provádění tohoto způsobu a způsob modernizace existujícího zařízení pro výrobu močoviny |
| CA2146070C (en) * | 1995-03-15 | 2002-01-29 | Kees Jonckers | Improved reactor for the synthesis of urea |
| US5597454A (en) * | 1995-04-06 | 1997-01-28 | Lee; Jing M. | Process for producing urea |
| DE69708627T2 (de) * | 1997-09-20 | 2002-08-08 | Urea Casale S.A., Lugano | Verfahren zur kombinierten Erzeugung von Ammoniak und Harnstoff |
| NL1022526C2 (nl) * | 2003-01-30 | 2004-08-04 | Dsm Nv | Werkwijze voor het afscheiden van NH3, en optioneel tevens CO2 en H2O, uit een mengsel bevattende NH3, CO2 en H2O. |
| EP3782979A1 (de) * | 2019-08-20 | 2021-02-24 | Yara International ASA | Herstellung einer harnstofflösung und anlage dafür |
| CN114901373B (zh) * | 2019-12-30 | 2022-12-23 | 斯塔米卡邦有限公司 | 使用多个蒸发器的尿素生产 |
| JP7277672B2 (ja) | 2019-12-30 | 2023-05-19 | スタミカーボン・ベー・フェー | 尿素仕上げからのアンモニア除去 |
| WO2022260524A1 (en) * | 2021-06-11 | 2022-12-15 | Stamicarbon B.V. | Urea production with triple mp streams |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2701262A (en) * | 1953-02-02 | 1955-02-01 | Chemical Construction Corp | Urea purification |
| DE1248639B (de) * | 1959-07-03 | |||
| US3232982A (en) * | 1960-01-08 | 1966-02-01 | Pullman Inc | Urea synthesis |
| US3172911A (en) * | 1961-06-16 | 1965-03-09 | Urea synthesis process | |
| US3759992A (en) * | 1970-06-29 | 1973-09-18 | I Mavrovic | Urea synthesis |
| US3824283A (en) * | 1970-11-02 | 1974-07-16 | Chemical Construction Corp | Urea synthesis process |
| NL168506C (nl) * | 1970-12-31 | 1982-04-16 | Stamicarbon | Werkwijze voor de bereiding van ureum. |
| BE787832A (fr) * | 1971-09-02 | 1973-02-22 | Stamicarbon | Procede pour la preparation d'uree |
| NL7612162A (nl) * | 1976-11-03 | 1978-05-08 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van een ureum- oplossing uit nh3 en co2. |
| US4231839A (en) * | 1979-01-30 | 1980-11-04 | Cf Industries, Inc. | After-treatment processes and apparatus, especially for urea and ammonium nitrate plants |
| DD146752A3 (de) * | 1980-01-08 | 1981-03-04 | Lothar Guenther | Verfahren zur reinigung von prozessabwasser der harnstoffsynthese |
| CA2601662A1 (en) * | 2006-09-18 | 2008-03-18 | Matthias Mullenborn | Wireless interface for programming hearing assistance devices |
-
1982
- 1982-04-21 NL NL8201652A patent/NL8201652A/nl not_active Application Discontinuation
-
1983
- 1983-04-15 EP EP83200545A patent/EP0093466B1/de not_active Expired
- 1983-04-15 DE DE8383200545T patent/DE3360512D1/de not_active Expired
- 1983-04-21 US US06/487,091 patent/US4539077A/en not_active Expired - Fee Related
- 1983-04-21 JP JP58070832A patent/JPS58189153A/ja active Pending
- 1983-04-28 IN IN520/CAL/83A patent/IN159537B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3360512D1 (en) | 1985-09-12 |
| EP0093466A1 (de) | 1983-11-09 |
| NL8201652A (nl) | 1983-11-16 |
| US4539077A (en) | 1985-09-03 |
| EP0093466B1 (de) | 1985-08-07 |
| JPS58189153A (ja) | 1983-11-04 |