BR7508676A - Aperfeicoamento em processo para tratamento de vapor d'agua gerado na concentracao de uma solucao aquosa de ureia - Google Patents
Aperfeicoamento em processo para tratamento de vapor d'agua gerado na concentracao de uma solucao aquosa de ureiaInfo
- Publication number
- BR7508676A BR7508676A BR8676/75A BR7508676A BR7508676A BR 7508676 A BR7508676 A BR 7508676A BR 8676/75 A BR8676/75 A BR 8676/75A BR 7508676 A BR7508676 A BR 7508676A BR 7508676 A BR7508676 A BR 7508676A
- Authority
- BR
- Brazil
- Prior art keywords
- improvement
- concentration
- urea solution
- vapor generated
- water vapor
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50053141A JPS51128915A (en) | 1975-05-06 | 1975-05-06 | Treatment of vapour generated in concentration of in aqueous urea solu tion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR7508676A true BR7508676A (pt) | 1976-11-09 |
Family
ID=12934538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8676/75A BR7508676A (pt) | 1975-05-06 | 1975-12-29 | Aperfeicoamento em processo para tratamento de vapor d'agua gerado na concentracao de uma solucao aquosa de ureia |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4207256A (pt) |
| JP (1) | JPS51128915A (pt) |
| AR (1) | AR206244A1 (pt) |
| AU (1) | AU503462B2 (pt) |
| BR (1) | BR7508676A (pt) |
| CA (1) | CA1064051A (pt) |
| DE (1) | DE2559112C3 (pt) |
| EG (1) | EG12001A (pt) |
| ES (1) | ES443998A1 (pt) |
| FR (1) | FR2310343A1 (pt) |
| GB (1) | GB1509950A (pt) |
| IT (1) | IT1051981B (pt) |
| NL (1) | NL172950C (pt) |
| NO (1) | NO150115C (pt) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5268129A (en) * | 1975-12-05 | 1977-06-06 | Mitsui Toatsu Chem Inc | Recovery of unreacted material and heat on urea synthesis |
| IT1068268B (it) * | 1976-09-09 | 1985-03-21 | Snam Progetti | Procedimento per la produzione di urea e purificazione delle acque |
| JPS5797400A (en) * | 1980-12-09 | 1982-06-17 | Mitsubishi Electric Corp | Speed controlling device for motor driven generator |
| NL8303888A (nl) * | 1983-11-13 | 1985-06-03 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| RU2113636C1 (ru) * | 1997-06-16 | 1998-06-20 | Сергей Анатольевич Попов | Насосно-эжекторная установка (варианты) |
| CN109516932B (zh) * | 2018-12-19 | 2024-04-12 | 安徽节源环保科技有限公司 | 一种尿素装置节能改造的工艺系统 |
| DE102019208859A1 (de) * | 2019-06-18 | 2020-12-24 | Skw Stickstoffwerke Piesteritz Gmbh | Verfahren zur kontinuierlichen Herstellung reiner Harnstofflösungen durch Verwertung von Prozesswasser |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1248639B (pt) * | 1959-07-03 | |||
| GB948786A (en) * | 1959-10-23 | 1964-02-05 | Toyo Koatsu Ind Inc | An improvement in synthesis of urea |
| US3232983A (en) * | 1960-01-08 | 1966-02-01 | Pullman Inc | Urea synthesis |
| NL137130C (pt) * | 1966-01-20 | 1900-01-01 | ||
| US3636106A (en) * | 1968-09-12 | 1972-01-18 | Chemical Construction Corp | Process for urea synthesis |
| US3668250A (en) * | 1969-08-19 | 1972-06-06 | Chemical Construction Corp | Urea synthesis process |
| US3711544A (en) * | 1970-04-20 | 1973-01-16 | Lummus Co | Heat recovery in urea synthesis |
| US3932504A (en) * | 1970-05-19 | 1976-01-13 | Vulcan-Cincinnati, Inc. | Urea manufacture |
| US3824283A (en) * | 1970-11-02 | 1974-07-16 | Chemical Construction Corp | Urea synthesis process |
| JPS5535378B2 (pt) * | 1973-02-14 | 1980-09-12 | ||
| US3922222A (en) * | 1973-02-20 | 1975-11-25 | Cf Ind | Method for treatment of urea crystallizer condensate |
-
1975
- 1975-01-01 AR AR261757A patent/AR206244A1/es active
- 1975-05-06 JP JP50053141A patent/JPS51128915A/ja active Granted
- 1975-12-09 AU AU87354/75A patent/AU503462B2/en not_active Expired
- 1975-12-22 GB GB52330/75A patent/GB1509950A/en not_active Expired
- 1975-12-24 IT IT30795/75A patent/IT1051981B/it active
- 1975-12-29 NO NO754403A patent/NO150115C/no unknown
- 1975-12-29 BR BR8676/75A patent/BR7508676A/pt unknown
- 1975-12-30 DE DE2559112A patent/DE2559112C3/de not_active Expired
- 1975-12-30 NL NLAANVRAGE7515175,A patent/NL172950C/xx not_active IP Right Cessation
- 1975-12-31 FR FR7540353A patent/FR2310343A1/fr active Granted
- 1975-12-31 ES ES443998A patent/ES443998A1/es not_active Expired
-
1976
- 1976-01-22 US US05/651,569 patent/US4207256A/en not_active Expired - Lifetime
- 1976-02-19 CA CA246,285A patent/CA1064051A/en not_active Expired
- 1976-03-14 EG EG150/76A patent/EG12001A/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| NL172950C (nl) | 1983-11-16 |
| AU503462B2 (en) | 1979-09-06 |
| FR2310343B1 (pt) | 1980-09-19 |
| CA1064051A (en) | 1979-10-09 |
| AR206244A1 (es) | 1976-07-07 |
| US4207256A (en) | 1980-06-10 |
| DE2559112A1 (de) | 1976-11-11 |
| JPS5243620B2 (pt) | 1977-11-01 |
| ES443998A1 (es) | 1977-04-16 |
| IT1051981B (it) | 1981-05-20 |
| NL7515175A (nl) | 1976-11-09 |
| NO150115B (no) | 1984-05-14 |
| GB1509950A (en) | 1978-05-10 |
| JPS51128915A (en) | 1976-11-10 |
| DE2559112B2 (de) | 1978-10-19 |
| FR2310343A1 (fr) | 1976-12-03 |
| EG12001A (en) | 1978-06-30 |
| AU8735475A (en) | 1977-06-23 |
| DE2559112C3 (de) | 1979-06-13 |
| NO150115C (no) | 1984-08-22 |
| NO754403L (pt) | 1976-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR7902701A (pt) | Processo e equipamento para tratamento de agua contendo detritos | |
| BR8000429A (pt) | Composicao e processo para tratamento de carpetes e tapetes, carpetes tratados e processo para produzir compostos ativos aplicaveis nos mesmos | |
| BR7605721A (pt) | Processo de tratamento de residuos | |
| BR8109030A (pt) | Processo e composicao para o tratamento do acne | |
| BR7703968A (pt) | Composicao microbiocida;processo para a preparacao da composicao microbiocida;processo para purificar agua,e solucoes aquosas,contaminadas com microbios | |
| BR7604240A (pt) | Dispositivo e processo para controlar e indicar a concentracao de um vapor na interface de uma face | |
| BR7908175A (pt) | Processo para o tratamento de condensado | |
| BR8202499A (pt) | Processo para melhorar o poder intumescente de tacabos | |
| BR7607930A (pt) | Processo para o tratamento quimico de aguas residuais | |
| BR7500977A (pt) | Aperfeicoamento em processo para o tratamento de purgador contendo sulfato procedente de processo de recuperacao de so2 e aperfeicoamento em processo para recuperar so2 | |
| BR8201103A (pt) | Processo para remocao de gases acidos e amonia de solucao aquosa | |
| BR8008108A (pt) | Processo para purificar agua residual | |
| BR7704415A (pt) | Processo para separar gases acidos e amonia de uma solucao aquosa diluida destes | |
| BR7502789A (pt) | Aperfeicoamento no processo para tratamento de vapor d'agua gerado na concentracao de solucao aquosa de ureia | |
| BR7508676A (pt) | Aperfeicoamento em processo para tratamento de vapor d'agua gerado na concentracao de uma solucao aquosa de ureia | |
| BR7602012A (pt) | Processo para tratamento preliminar de materiais para sinterizacao | |
| BR7702362A (pt) | Composicao e processo para o tratamento de uma formacao de terreno | |
| IT1078575B (it) | Processo e soluzione per la zincatura | |
| BR7905424A (pt) | Processo para a preparacao de ciclo penteno | |
| BR7907238A (pt) | Processo para o tratamento de aco contendo boro para uso em lingotamento continuo | |
| BR7405373A (pt) | Processo para tratar folheado com agentes de tratamento quimico contendo agua | |
| BR7905992A (pt) | Processo para tratar materiais texteis | |
| BR7907277A (pt) | Processo para producao de suspensoes ou solucoes de cloreto cianurico em agua | |
| BR8302433A (pt) | Processo para produzir eteres alqui-ter-butilicos | |
| BR7907134A (pt) | Aperfeicoamento em processo para a preparacao de n-penil-n'-alquilfenilenodiamina |