BE747769A - Procede pour retirer par une distillation en couche mince les residus de synthese d'une solution d'uree - Google Patents
Procede pour retirer par une distillation en couche mince les residus de synthese d'une solution d'ureeInfo
- Publication number
- BE747769A BE747769A BE747769DA BE747769A BE 747769 A BE747769 A BE 747769A BE 747769D A BE747769D A BE 747769DA BE 747769 A BE747769 A BE 747769A
- Authority
- BE
- Belgium
- Prior art keywords
- thin layer
- urea solution
- layer distillation
- synthesis residues
- residues
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title 1
- 230000015572 biosynthetic process Effects 0.000 title 1
- 239000004202 carbamide Substances 0.000 title 1
- 238000004821 distillation Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000003786 synthesis reaction Methods 0.000 title 1
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
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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 |
|---|---|---|---|
| IT1507269 | 1969-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE747769A true BE747769A (fr) | 1970-08-31 |
Family
ID=11146229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE747769D BE747769A (fr) | 1969-04-04 | 1970-03-20 | Procede pour retirer par une distillation en couche mince les residus de synthese d'une solution d'uree |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS5238017B1 (en, 2012) |
| AT (1) | AT305304B (en, 2012) |
| BE (1) | BE747769A (en, 2012) |
| BR (1) | BR7017988D0 (en, 2012) |
| CA (1) | CA949918A (en, 2012) |
| CH (1) | CH514555A (en, 2012) |
| CS (1) | CS152471B2 (en, 2012) |
| DE (1) | DE2015781B2 (en, 2012) |
| ES (1) | ES378592A1 (en, 2012) |
| FR (1) | FR2042135A5 (en, 2012) |
| GB (1) | GB1292515A (en, 2012) |
| IE (1) | IE34603B1 (en, 2012) |
| LU (1) | LU60616A1 (en, 2012) |
| NL (1) | NL7004886A (en, 2012) |
| RO (1) | RO69432A (en, 2012) |
| YU (1) | YU35113B (en, 2012) |
| ZM (1) | ZM3570A1 (en, 2012) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1209532B (it) * | 1984-04-20 | 1989-08-30 | Snam Progetti | Processo per la sintesi di urea e materiale utilizzato nello stesso. |
| JP3259661B2 (ja) * | 1997-06-27 | 2002-02-25 | 株式会社イトーキクレビオ | パネル体連結装置 |
| ITMI20120013A1 (it) | 2012-01-09 | 2013-07-10 | Saipem Spa | Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper |
| DE102019208859A1 (de) | 2019-06-18 | 2020-12-24 | Skw Stickstoffwerke Piesteritz Gmbh | Verfahren zur kontinuierlichen Herstellung reiner Harnstofflösungen durch Verwertung von Prozesswasser |
-
1970
- 1970-03-19 GB GB03413/70A patent/GB1292515A/en not_active Expired
- 1970-03-19 FR FR7009891A patent/FR2042135A5/fr not_active Expired
- 1970-03-20 BE BE747769D patent/BE747769A/xx not_active IP Right Cessation
- 1970-03-26 ZM ZM35/70A patent/ZM3570A1/xx unknown
- 1970-03-27 LU LU60616D patent/LU60616A1/xx unknown
- 1970-03-27 AT AT2890/70A patent/AT305304B/de not_active IP Right Cessation
- 1970-03-31 YU YU852/70A patent/YU35113B/xx unknown
- 1970-03-31 CH CH470570A patent/CH514555A/fr not_active IP Right Cessation
- 1970-04-01 CA CA078,921A patent/CA949918A/en not_active Expired
- 1970-04-02 DE DE19702015781 patent/DE2015781B2/de not_active Ceased
- 1970-04-02 CS CS2186A patent/CS152471B2/cs unknown
- 1970-04-03 JP JP45027937A patent/JPS5238017B1/ja active Pending
- 1970-04-03 ES ES378592A patent/ES378592A1/es not_active Expired
- 1970-04-03 BR BR217988/70A patent/BR7017988D0/pt unknown
- 1970-04-03 IE IE413/70A patent/IE34603B1/xx unknown
- 1970-04-03 RO RO7062975A patent/RO69432A/ro unknown
- 1970-04-06 NL NL7004886A patent/NL7004886A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS152471B2 (en, 2012) | 1973-12-19 |
| ES378592A1 (es) | 1972-06-16 |
| IE34603B1 (en) | 1975-06-25 |
| ZM3570A1 (en) | 1971-07-22 |
| NL7004886A (en, 2012) | 1970-10-06 |
| DE2015781B2 (de) | 1973-05-03 |
| YU85270A (en) | 1979-12-31 |
| BR7017988D0 (pt) | 1973-04-12 |
| AT305304B (de) | 1973-01-15 |
| CA949918A (en) | 1974-06-25 |
| CH514555A (fr) | 1971-10-31 |
| RO69432A (ro) | 1980-12-30 |
| DE2015781A1 (de) | 1970-10-08 |
| YU35113B (en) | 1980-09-25 |
| GB1292515A (en) | 1972-10-11 |
| FR2042135A5 (en, 2012) | 1971-02-05 |
| JPS5238017B1 (en, 2012) | 1977-09-27 |
| IE34603L (en) | 1970-10-04 |
| LU60616A1 (en, 2012) | 1970-05-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: SNAM PROGETTI S.P.A. Effective date: 19870331 |