CA949918A - Process for removing the synthesis residues from an urea solution by film distillation - Google Patents
Process for removing the synthesis residues from an urea solution by film distillationInfo
- Publication number
- CA949918A CA949918A CA078,921A CA78921A CA949918A CA 949918 A CA949918 A CA 949918A CA 78921 A CA78921 A CA 78921A CA 949918 A CA949918 A CA 949918A
- Authority
- CA
- Canada
- Prior art keywords
- urea solution
- film distillation
- synthesis residues
- residues
- synthesis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- C07C273/14—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 |
|---|---|
| CA949918A true CA949918A (en) | 1974-06-25 |
Family
ID=11146229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA078,921A Expired CA949918A (en) | 1969-04-04 | 1970-04-01 | Process for removing the synthesis residues from an urea solution by film distillation |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS5238017B1 (en) |
| AT (1) | AT305304B (en) |
| BE (1) | BE747769A (en) |
| BR (1) | BR7017988D0 (en) |
| CA (1) | CA949918A (en) |
| CH (1) | CH514555A (en) |
| CS (1) | CS152471B2 (en) |
| DE (1) | DE2015781B2 (en) |
| ES (1) | ES378592A1 (en) |
| FR (1) | FR2042135A5 (en) |
| GB (1) | GB1292515A (en) |
| IE (1) | IE34603B1 (en) |
| LU (1) | LU60616A1 (en) |
| NL (1) | NL7004886A (en) |
| RO (1) | RO69432A (en) |
| YU (1) | YU35113B (en) |
| ZM (1) | ZM3570A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1209532B (en) * | 1984-04-20 | 1989-08-30 | Snam Progetti | PROCESS FOR THE SYNTHESIS OF UREA AND MATERIAL USED IN ITSELF. |
| JP3259661B2 (en) * | 1997-06-27 | 2002-02-25 | 株式会社イトーキクレビオ | Panel body connection device |
| ITMI20120013A1 (en) | 2012-01-09 | 2013-07-10 | Saipem Spa | PROCEDURE FOR THE SYNTHESIS OF UREA INCLUDING A STRIPPER FUND OF PASSIVATION |
| DE102019208859A1 (en) | 2019-06-18 | 2020-12-24 | Skw Stickstoffwerke Piesteritz Gmbh | Process for the continuous production of pure urea solutions by utilizing process water |
-
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/en not_active IP Right Cessation
- 1970-03-26 ZM ZM35/70A patent/ZM3570A1/en unknown
- 1970-03-27 LU LU60616D patent/LU60616A1/xx unknown
- 1970-03-27 AT AT2890/70A patent/AT305304B/en not_active IP Right Cessation
- 1970-03-31 CH CH470570A patent/CH514555A/en not_active IP Right Cessation
- 1970-03-31 YU YU852/70A patent/YU35113B/en unknown
- 1970-04-01 CA CA078,921A patent/CA949918A/en not_active Expired
- 1970-04-02 CS CS2186A patent/CS152471B2/cs unknown
- 1970-04-02 DE DE19702015781 patent/DE2015781B2/en not_active Ceased
- 1970-04-03 JP JP45027937A patent/JPS5238017B1/ja active Pending
- 1970-04-03 IE IE413/70A patent/IE34603B1/en unknown
- 1970-04-03 BR BR217988/70A patent/BR7017988D0/en unknown
- 1970-04-03 ES ES378592A patent/ES378592A1/en not_active Expired
- 1970-04-03 RO RO7062975A patent/RO69432A/en unknown
- 1970-04-06 NL NL7004886A patent/NL7004886A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IE34603L (en) | 1970-10-04 |
| CS152471B2 (en) | 1973-12-19 |
| YU35113B (en) | 1980-09-25 |
| NL7004886A (en) | 1970-10-06 |
| BR7017988D0 (en) | 1973-04-12 |
| FR2042135A5 (en) | 1971-02-05 |
| YU85270A (en) | 1979-12-31 |
| GB1292515A (en) | 1972-10-11 |
| AT305304B (en) | 1973-01-15 |
| BE747769A (en) | 1970-08-31 |
| RO69432A (en) | 1980-12-30 |
| IE34603B1 (en) | 1975-06-25 |
| JPS5238017B1 (en) | 1977-09-27 |
| LU60616A1 (en) | 1970-05-28 |
| ZM3570A1 (en) | 1971-07-22 |
| ES378592A1 (en) | 1972-06-16 |
| CH514555A (en) | 1971-10-31 |
| DE2015781B2 (en) | 1973-05-03 |
| DE2015781A1 (en) | 1970-10-08 |
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