DE2015781B2 - Verfahren zur gewinnung einer von nicht umgesetzten reaktionsteilnehmern freien harnstoffloesung - Google Patents
Verfahren zur gewinnung einer von nicht umgesetzten reaktionsteilnehmern freien harnstoffloesungInfo
- Publication number
- DE2015781B2 DE2015781B2 DE19702015781 DE2015781A DE2015781B2 DE 2015781 B2 DE2015781 B2 DE 2015781B2 DE 19702015781 DE19702015781 DE 19702015781 DE 2015781 A DE2015781 A DE 2015781A DE 2015781 B2 DE2015781 B2 DE 2015781B2
- Authority
- DE
- Germany
- Prior art keywords
- distillation
- obtaining
- urea solution
- urea
- water
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims description 15
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 9
- 239000004202 carbamide Substances 0.000 title claims description 9
- 238000006243 chemical reaction Methods 0.000 title claims description 6
- 238000004821 distillation Methods 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 239000007858 starting material Substances 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 2
- 210000002700 urine Anatomy 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 1
- 230000007928 solubilization Effects 0.000 claims 1
- 238000005063 solubilization Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- 238000000926 separation method Methods 0.000 description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 239000007792 gaseous phase Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 206010026749 Mania Diseases 0.000 description 1
- LEHOTFFKMJEONL-UHFFFAOYSA-N Uric Acid Chemical compound N1C(=O)NC(=O)C2=C1NC(=O)N2 LEHOTFFKMJEONL-UHFFFAOYSA-N 0.000 description 1
- TVWHNULVHGKJHS-UHFFFAOYSA-N Uric acid Natural products N1C(=O)NC(=O)C2NC(=O)NC21 TVWHNULVHGKJHS-UHFFFAOYSA-N 0.000 description 1
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000001550 testis Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229940116269 uric acid Drugs 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 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 (2)
| Publication Number | Publication Date |
|---|---|
| DE2015781A1 DE2015781A1 (de) | 1970-10-08 |
| DE2015781B2 true DE2015781B2 (de) | 1973-05-03 |
Family
ID=11146229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702015781 Ceased DE2015781B2 (de) | 1969-04-04 | 1970-04-02 | Verfahren zur gewinnung einer von nicht umgesetzten reaktionsteilnehmern freien harnstoffloesung |
Country Status (17)
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 BR BR217988/70A patent/BR7017988D0/pt unknown
- 1970-04-03 RO RO7062975A patent/RO69432A/ro unknown
- 1970-04-03 ES ES378592A patent/ES378592A1/es not_active Expired
- 1970-04-03 IE IE413/70A patent/IE34603B1/xx unknown
- 1970-04-06 NL NL7004886A patent/NL7004886A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS152471B2 (enrdf_load_stackoverflow) | 1973-12-19 |
| LU60616A1 (enrdf_load_stackoverflow) | 1970-05-28 |
| ES378592A1 (es) | 1972-06-16 |
| JPS5238017B1 (enrdf_load_stackoverflow) | 1977-09-27 |
| IE34603B1 (en) | 1975-06-25 |
| CH514555A (fr) | 1971-10-31 |
| GB1292515A (en) | 1972-10-11 |
| ZM3570A1 (en) | 1971-07-22 |
| BE747769A (fr) | 1970-08-31 |
| DE2015781A1 (de) | 1970-10-08 |
| FR2042135A5 (enrdf_load_stackoverflow) | 1971-02-05 |
| RO69432A (ro) | 1980-12-30 |
| CA949918A (en) | 1974-06-25 |
| IE34603L (en) | 1970-10-04 |
| AT305304B (de) | 1973-01-15 |
| YU35113B (en) | 1980-09-25 |
| BR7017988D0 (pt) | 1973-04-12 |
| YU85270A (en) | 1979-12-31 |
| NL7004886A (enrdf_load_stackoverflow) | 1970-10-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8235 | Patent refused |