CS205083B2 - Method of producing urea with the contemporary purification of obtained water - Google Patents
Method of producing urea with the contemporary purification of obtained water Download PDFInfo
- Publication number
- CS205083B2 CS205083B2 CS775684A CS568477A CS205083B2 CS 205083 B2 CS205083 B2 CS 205083B2 CS 775684 A CS775684 A CS 775684A CS 568477 A CS568477 A CS 568477A CS 205083 B2 CS205083 B2 CS 205083B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- pressure
- ammonia
- carbon dioxide
- urea
- weight
- Prior art date
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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/025—Thermal hydrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
- C02F11/08—Wet air oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT27024/76A IT1068268B (it) | 1976-09-09 | 1976-09-09 | Procedimento per la produzione di urea e purificazione delle acque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS205083B2 true CS205083B2 (en) | 1981-04-30 |
Family
ID=11220800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS775684A CS205083B2 (en) | 1976-09-09 | 1977-08-31 | Method of producing urea with the contemporary purification of obtained water |
Country Status (24)
| Country | Link |
|---|---|
| US (1) | US4314077A (xx) |
| JP (1) | JPS6058228B2 (xx) |
| AR (1) | AR219502A1 (xx) |
| AU (1) | AU511880B2 (xx) |
| BE (1) | BE858574A (xx) |
| BR (1) | BR7706063A (xx) |
| CA (1) | CA1106404A (xx) |
| CH (1) | CH625505A5 (xx) |
| CS (1) | CS205083B2 (xx) |
| DD (1) | DD133091A5 (xx) |
| DE (1) | DE2740358C2 (xx) |
| DK (1) | DK399577A (xx) |
| ES (1) | ES462234A1 (xx) |
| FR (1) | FR2364203A1 (xx) |
| GB (1) | GB1542371A (xx) |
| IE (1) | IE45681B1 (xx) |
| IN (1) | IN147029B (xx) |
| IT (1) | IT1068268B (xx) |
| LU (1) | LU78097A1 (xx) |
| MX (1) | MX150529A (xx) |
| NL (1) | NL7709968A (xx) |
| PL (1) | PL116475B1 (xx) |
| SE (1) | SE425972B (xx) |
| YU (1) | YU39132B (xx) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1141030B (it) * | 1980-08-29 | 1986-10-01 | Snam Progetti | Procedimento per la produzione di urea |
| NL8102391A (nl) * | 1981-05-15 | 1982-12-01 | Unie Van Kunstmestfab Bv | Werkwijze voor het winnen van waardevolle bestanddelen uit de afvalstromen verkregen bij de ureumbereiding. |
| IT1211125B (it) * | 1981-10-16 | 1989-09-29 | Ortu Francesco | Composti azotati. processo per la preparazione di |
| JPS5867661A (ja) * | 1981-10-16 | 1983-04-22 | Mitsui Toatsu Chem Inc | 尿素合成法 |
| JPS61109760A (ja) * | 1984-11-02 | 1986-05-28 | Toyo Eng Corp | 尿素製造法 |
| NL8502228A (nl) * | 1985-08-12 | 1987-03-02 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8502227A (nl) * | 1985-08-12 | 1987-03-02 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| JPS63112552A (ja) * | 1986-10-30 | 1988-05-17 | Toyo Eng Corp | 未転化物の分離方法 |
| IT1232670B (it) * | 1989-09-15 | 1992-03-02 | Snam Progetti | Procedimento per la purificazione delle acque reflue prodotte dagli impianti di produzione dell'urea. |
| IT1232669B (it) * | 1989-09-15 | 1992-03-02 | Snam Progetti | Procedimento per la produzione di urea con elevato rendimento energetico. |
| JP2000054950A (ja) * | 1998-06-05 | 2000-02-22 | Hanako Narutomi | 常温度熱機関 |
| US6511644B1 (en) | 2000-08-28 | 2003-01-28 | The Chemithon Corporation | Method for removing contaminants in reactors |
| US6761868B2 (en) * | 2001-05-16 | 2004-07-13 | The Chemithon Corporation | Process for quantitatively converting urea to ammonia on demand |
| NL1019848C2 (nl) * | 2002-01-28 | 2003-07-30 | Dsm Nv | Werkwijze voor de bereiding van ureum. |
| US6887449B2 (en) * | 2002-11-21 | 2005-05-03 | The Chemithon Corporation | Method of quantitatively producing ammonia from urea |
| US6990691B2 (en) * | 2003-07-18 | 2006-01-31 | Depuy Products, Inc. | Head gear apparatus |
| EP1918273A1 (en) † | 2006-11-04 | 2008-05-07 | Urea Casale S.A. | Process for urea production and related plant |
| EP2128129A1 (en) | 2008-05-20 | 2009-12-02 | Urea Casale S.A. | Method for the modernization of a urea production plant |
| EP2199279A1 (en) | 2008-12-17 | 2010-06-23 | Urea Casale S.A. | Improvement to the high-pressure loop in a process for synthesis of urea |
| EP2397463A1 (en) * | 2010-06-16 | 2011-12-21 | Urea Casale SA | Method for revamping a self-stripping urea plant |
| EP2502881A1 (en) | 2011-03-24 | 2012-09-26 | Urea Casale S.A. | Process and plant for ammonia-urea production |
| ITMI20120013A1 (it) | 2012-01-09 | 2013-07-10 | Saipem Spa | Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper |
| EP2784062A1 (en) | 2013-03-27 | 2014-10-01 | Urea Casale SA | Method for revamping a self-stripping urea plant |
| US10376859B2 (en) | 2016-03-30 | 2019-08-13 | Stamicarbon B.V. | Urea production with bi-pressurized synthesis |
| MY179668A (en) | 2016-05-03 | 2020-11-11 | Stamicarbon | Controlling biuret in urea production |
| UA123548C2 (uk) | 2016-05-03 | 2021-04-21 | Стамікарбон Б.В. | Виробництво карбаміду з контрольованим біуретом |
| JP6862381B2 (ja) | 2018-03-02 | 2021-04-21 | 株式会社東芝 | 半導体装置 |
| JP7088770B2 (ja) | 2018-07-26 | 2022-06-21 | 東洋エンジニアリング株式会社 | 尿素製造方法および装置 |
| CN113195449B (zh) * | 2018-12-21 | 2022-05-24 | 斯塔米卡邦有限公司 | 在低压回收段具有热整合的尿素生产方法和装置 |
| CN113603113A (zh) * | 2021-09-17 | 2021-11-05 | 浙江建业微电子材料有限公司 | 一种适用于电子级氨气与氨水的生产装置及其生产方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU37505A1 (xx) * | 1958-08-08 | |||
| CH468356A (de) * | 1966-04-05 | 1969-02-15 | Inventa Ag | Verfahren zur Aufarbeitung des bei der Synthese von Harnstoff aus Ammoniak und Kohlendioxyd in einem Synthesereaktor bei erhöhtem Druck und erhöhter Temperatur erhaltenen Synthesegemisches |
| US3876696A (en) * | 1968-09-03 | 1975-04-08 | Snam Progetti | Process for the production of urea having a low carbamate content |
| US4036878A (en) * | 1972-06-12 | 1977-07-19 | Unie Van Kunstmestfabrieken, B.V. | Process for preparing urea |
| US3826815A (en) * | 1972-06-21 | 1974-07-30 | I Mavrovic | Recovery of residual ammonia from weak aqueous solutions thereof |
| JPS5535378B2 (xx) * | 1973-02-14 | 1980-09-12 | ||
| US3922222A (en) * | 1973-02-20 | 1975-11-25 | Cf Ind | Method for treatment of urea crystallizer condensate |
| IT1014987B (it) * | 1974-06-12 | 1977-04-30 | Snam Progetti | Procedimento integrato urea am moniaca |
| GB1506129A (en) * | 1975-04-23 | 1978-04-05 | Snam Progetti | Formation of ammonium carbamate solution |
| AR206244A1 (es) * | 1975-05-06 | 1976-07-07 | Mitsui Toatsu Chemicals | Procedimiento para tratar vapor de agua generado al concentrar una solucion acuosa de urea |
| JPS5268129A (en) * | 1975-12-05 | 1977-06-06 | Mitsui Toatsu Chem Inc | Recovery of unreacted material and heat on urea synthesis |
-
1976
- 1976-09-09 IT IT27024/76A patent/IT1068268B/it active
-
1977
- 1977-08-04 CA CA284,053A patent/CA1106404A/en not_active Expired
- 1977-08-05 AU AU27673/77A patent/AU511880B2/en not_active Expired
- 1977-08-18 IN IN1283/CAL/77A patent/IN147029B/en unknown
- 1977-08-31 CS CS775684A patent/CS205083B2/cs unknown
- 1977-08-31 MX MX170424A patent/MX150529A/es unknown
- 1977-09-01 PL PL1977200608A patent/PL116475B1/pl not_active IP Right Cessation
- 1977-09-02 ES ES462234A patent/ES462234A1/es not_active Expired
- 1977-09-05 JP JP52105969A patent/JPS6058228B2/ja not_active Expired
- 1977-09-06 YU YU02125/77A patent/YU39132B/xx unknown
- 1977-09-07 DE DE2740358A patent/DE2740358C2/de not_active Expired
- 1977-09-07 LU LU78097A patent/LU78097A1/xx unknown
- 1977-09-07 DD DD7700200918A patent/DD133091A5/xx unknown
- 1977-09-08 FR FR7727215A patent/FR2364203A1/fr active Granted
- 1977-09-08 DK DK399577A patent/DK399577A/da not_active Application Discontinuation
- 1977-09-08 GB GB7737615A patent/GB1542371A/en not_active Expired
- 1977-09-09 BR BR7706063A patent/BR7706063A/pt unknown
- 1977-09-09 BE BE180806A patent/BE858574A/xx not_active IP Right Cessation
- 1977-09-09 CH CH1108777A patent/CH625505A5/it not_active IP Right Cessation
- 1977-09-09 AR AR269158A patent/AR219502A1/es active
- 1977-09-09 NL NL7709968A patent/NL7709968A/xx not_active Application Discontinuation
- 1977-09-09 SE SE7710151A patent/SE425972B/xx not_active IP Right Cessation
- 1977-09-09 IE IE1872/77A patent/IE45681B1/en unknown
-
1980
- 1980-12-15 US US06/216,303 patent/US4314077A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| LU78097A1 (xx) | 1978-01-23 |
| ES462234A1 (es) | 1978-06-01 |
| AU2767377A (en) | 1979-05-03 |
| AR219502A1 (es) | 1980-08-29 |
| GB1542371A (en) | 1979-03-21 |
| BE858574A (fr) | 1978-03-09 |
| DK399577A (da) | 1978-03-10 |
| DE2740358C2 (de) | 1982-07-01 |
| IN147029B (xx) | 1979-10-27 |
| CA1106404A (en) | 1981-08-04 |
| US4314077A (en) | 1982-02-02 |
| IE45681L (en) | 1978-03-09 |
| FR2364203B1 (xx) | 1980-03-14 |
| PL200608A1 (pl) | 1978-05-22 |
| BR7706063A (pt) | 1978-06-06 |
| SE7710151L (sv) | 1978-03-10 |
| MX150529A (es) | 1984-05-22 |
| JPS5334721A (en) | 1978-03-31 |
| JPS6058228B2 (ja) | 1985-12-19 |
| YU212577A (en) | 1982-08-31 |
| DD133091A5 (de) | 1978-12-06 |
| FR2364203A1 (fr) | 1978-04-07 |
| AU511880B2 (en) | 1980-09-11 |
| CH625505A5 (xx) | 1981-09-30 |
| IT1068268B (it) | 1985-03-21 |
| DE2740358A1 (de) | 1978-03-16 |
| NL7709968A (nl) | 1978-03-13 |
| YU39132B (en) | 1984-06-30 |
| PL116475B1 (en) | 1981-06-30 |
| SE425972B (sv) | 1982-11-29 |
| IE45681B1 (en) | 1982-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CS205083B2 (en) | Method of producing urea with the contemporary purification of obtained water | |
| KR100407370B1 (ko) | 요소 진공증발기로부터의 증기내 응축성물의 회수방법 및 장치 | |
| EP0093466B1 (en) | Process for the preparation of urea | |
| SU1378781A3 (ru) | Способ выделени мочевины,аммиака и двуокиси углерода из разбавленных водных растворов | |
| RU2739768C2 (ru) | Способ совмещенного производства мочевины и мочевино-аммониевого нитрата | |
| EP0029536A1 (en) | Process for removing and recovering ammonia from aqueous liquors | |
| CN108658051B (zh) | 硝化废酸的回收方法、装置及其回收的硫酸 | |
| EA034482B1 (ru) | Совмещенное производство карбамида и меламина | |
| US4433146A (en) | Process for the preparation of melamine | |
| JP2003534221A (ja) | 濃硝酸を製造する方法およびそのような方法を実施するための装置 | |
| JP2002526462A (ja) | 高濃度モノエチレングリコールの製造方法 | |
| EP2521710B1 (en) | A urea stripping process for the production of urea | |
| KR870001249B1 (ko) | 요소 합성법 | |
| US3824283A (en) | Urea synthesis process | |
| US2807574A (en) | Treatment of unreacted ammonia in the manufacture of urea | |
| US4003801A (en) | Treatment of water vapor generated in concentrating an aqueous urea solution | |
| US3636106A (en) | Process for urea synthesis | |
| US5276183A (en) | Process and plant for the production of urea | |
| RU2090554C1 (ru) | Способ промышленного получения мочевины | |
| EP0266840A1 (en) | Process for preparing urea | |
| CN111087291B (zh) | 一种氨肟化反应多元醇酮分离回收环己酮的工艺 | |
| EA025632B1 (ru) | Способ получения смеси, содержащей циклогексанол и циклогексанон | |
| US4396591A (en) | Recovery of hydrogen iodide | |
| US3305582A (en) | Urea synthesis with recovery of excess ammonia | |
| KR790001171B1 (ko) | 요소합성에 있어서의 미반응물 및 열의 회수법 |