BR6567526D0 - Processo para preparacao de ureias - Google Patents
Processo para preparacao de ureiasInfo
- Publication number
- BR6567526D0 BR6567526D0 BR167526/65A BR16752665A BR6567526D0 BR 6567526 D0 BR6567526 D0 BR 6567526D0 BR 167526/65 A BR167526/65 A BR 167526/65A BR 16752665 A BR16752665 A BR 16752665A BR 6567526 D0 BR6567526 D0 BR 6567526D0
- Authority
- BR
- Brazil
- Prior art keywords
- preparation process
- urea preparation
- urea
- preparation
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34776364A | 1964-02-27 | 1964-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR6567526D0 true BR6567526D0 (pt) | 1973-08-02 |
Family
ID=23365180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR167526/65A BR6567526D0 (pt) | 1964-02-27 | 1965-02-26 | Processo para preparacao de ureias |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3471558A (pt) |
| BR (1) | BR6567526D0 (pt) |
| CH (1) | CH454115A (pt) |
| DE (1) | DE1518468A1 (pt) |
| ES (1) | ES309851A1 (pt) |
| FR (1) | FR1425802A (pt) |
| GB (1) | GB1103351A (pt) |
| IL (1) | IL23062A (pt) |
| NL (1) | NL6502543A (pt) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4919259B1 (pt) * | 1969-08-30 | 1974-05-16 | ||
| NL7713190A (nl) * | 1977-11-30 | 1979-06-01 | Unie Van Kunstmestfab Bv | Werkwijze en inrichting voor het verwijderen van ammoniumcarbamaat uit een ureumsynthese- oplossing. |
| JPS5517346A (en) * | 1978-07-24 | 1980-02-06 | Toyo Eng Corp | Synthetic method of urea |
| US4500734A (en) * | 1980-12-11 | 1985-02-19 | Snamprogetti S.P.A. | Process for the production of urea |
| CN115353241B (zh) * | 2021-07-07 | 2024-05-14 | 南京大学宜兴环保研究院 | 一种快速回收高浓度尿素生产废水中尿素的方法和系统 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2744133A (en) * | 1953-04-24 | 1956-05-01 | Inventa Ag | Process for the production of low-biuret content urea |
| US2916516A (en) * | 1956-03-09 | 1959-12-08 | Basf Ag | Evaporation of aqueous urea solutions |
-
1964
- 1964-02-27 US US347763A patent/US3471558A/en not_active Expired - Lifetime
-
1965
- 1965-02-25 IL IL23062A patent/IL23062A/en unknown
- 1965-02-26 DE DE19651518468 patent/DE1518468A1/de active Pending
- 1965-02-26 CH CH266465A patent/CH454115A/de unknown
- 1965-02-26 GB GB8378/65A patent/GB1103351A/en not_active Expired
- 1965-02-26 BR BR167526/65A patent/BR6567526D0/pt unknown
- 1965-02-26 ES ES0309851A patent/ES309851A1/es not_active Expired
- 1965-02-27 FR FR7345A patent/FR1425802A/fr not_active Expired
- 1965-03-01 NL NL6502543A patent/NL6502543A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1103351A (en) | 1968-02-14 |
| IL23062A (en) | 1968-08-22 |
| NL6502543A (pt) | 1965-08-30 |
| FR1425802A (fr) | 1966-01-24 |
| DE1518468A1 (de) | 1969-08-07 |
| US3471558A (en) | 1969-10-07 |
| CH454115A (de) | 1968-04-15 |
| ES309851A1 (es) | 1966-01-16 |
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