BR8705723A - PROCESS FOR SEPARATION OF NOT CONVERTED RAW MATERIALS - Google Patents
PROCESS FOR SEPARATION OF NOT CONVERTED RAW MATERIALSInfo
- Publication number
- BR8705723A BR8705723A BR8705723A BR8705723A BR8705723A BR 8705723 A BR8705723 A BR 8705723A BR 8705723 A BR8705723 A BR 8705723A BR 8705723 A BR8705723 A BR 8705723A BR 8705723 A BR8705723 A BR 8705723A
- Authority
- BR
- Brazil
- Prior art keywords
- separation
- raw materials
- converted raw
- converted
- materials
- 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 |
|---|---|---|---|
| JP25940486A JPS63112552A (en) | 1986-10-30 | 1986-10-30 | Separation method for unconverted substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8705723A true BR8705723A (en) | 1988-05-31 |
Family
ID=17333651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8705723A BR8705723A (en) | 1986-10-30 | 1987-10-27 | PROCESS FOR SEPARATION OF NOT CONVERTED RAW MATERIALS |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS63112552A (en) |
| CN (1) | CN1020898C (en) |
| BR (1) | BR8705723A (en) |
| GB (1) | GB2196965B (en) |
| IN (1) | IN171250B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039413C (en) * | 1993-09-16 | 1998-08-05 | 中国化学工程总公司 | Stripping recirculation technology & apparatus for urea production |
| CN1041199C (en) * | 1994-06-18 | 1998-12-16 | 中国五环化学工程公司 | Energy saving device for producing urea by full-circulating process |
| JP4358428B2 (en) | 2000-11-01 | 2009-11-04 | 東洋エンジニアリング株式会社 | Urea production method |
| MX364219B (en) * | 2012-05-03 | 2019-04-16 | Stamicarbon | Method and apparatus for the production of urea from ammonia and carbon dioxide. |
| AP2015008643A0 (en) * | 2013-02-08 | 2015-08-31 | Toyo Engineering Corp | Process for recovering carbon dioxide from combustion exhaust gas |
| GB2557080B (en) * | 2015-09-08 | 2020-04-29 | Toyo Engineering Corp | Urea manufacturing method and urea manufacturing apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1068268B (en) * | 1976-09-09 | 1985-03-21 | Snam Progetti | PROCEDURE FOR THE PRODUCTION OF UREA AND PURIFICATION OF WATERS |
| JPS5573651A (en) * | 1978-11-30 | 1980-06-03 | Toyo Eng Corp | Preparation of urea |
| JPS5746954A (en) * | 1980-09-05 | 1982-03-17 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| JPS5750954A (en) * | 1980-09-12 | 1982-03-25 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| JPS5867661A (en) * | 1981-10-16 | 1983-04-22 | Mitsui Toatsu Chem Inc | Synthesizing method of urea |
| JPS61109760A (en) * | 1984-11-02 | 1986-05-28 | Toyo Eng Corp | Production of urea |
-
1986
- 1986-10-30 JP JP25940486A patent/JPS63112552A/en active Pending
-
1987
- 1987-10-16 IN IN907/DEL/87A patent/IN171250B/en unknown
- 1987-10-27 BR BR8705723A patent/BR8705723A/en not_active IP Right Cessation
- 1987-10-29 GB GB8725321A patent/GB2196965B/en not_active Expired - Fee Related
- 1987-10-29 CN CN 87107799 patent/CN1020898C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN87107799A (en) | 1988-07-06 |
| CN1020898C (en) | 1993-05-26 |
| IN171250B (en) | 1992-08-22 |
| GB2196965A (en) | 1988-05-11 |
| GB2196965B (en) | 1990-07-11 |
| GB8725321D0 (en) | 1987-12-02 |
| JPS63112552A (en) | 1988-05-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Decision: intention to grant | ||
| KD | Fees due (letter patent) | ||
| FG | Letter patent granted | ||
| B21A | Expiry acc. art. 78, item i of ipl- expiry of the term of protection |
Free format text: PATENTE EXTINTA EM 27/10/2002 |