NO752079L - - Google Patents
Info
- Publication number
- NO752079L NO752079L NO752079A NO752079A NO752079L NO 752079 L NO752079 L NO 752079L NO 752079 A NO752079 A NO 752079A NO 752079 A NO752079 A NO 752079A NO 752079 L NO752079 L NO 752079L
- Authority
- NO
- Norway
- Prior art keywords
- urea
- solution
- cog
- synthesis
- ammonia
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 50
- 238000010521 absorption reaction Methods 0.000 claims description 44
- 239000004202 carbamide Substances 0.000 claims description 40
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 39
- 230000015572 biosynthetic process Effects 0.000 claims description 35
- 238000003786 synthesis reaction Methods 0.000 claims description 31
- 229910021529 ammonia Inorganic materials 0.000 claims description 22
- 239000007789 gas Substances 0.000 claims description 20
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 17
- 239000001099 ammonium carbonate Substances 0.000 claims description 17
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 17
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 16
- 238000004821 distillation Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000009833 condensation Methods 0.000 claims description 9
- 230000005494 condensation Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000003776 cleavage reaction Methods 0.000 claims 1
- 230000007017 scission Effects 0.000 claims 1
- 239000000243 solution Substances 0.000 description 41
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 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
- C07C273/10—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 combined with the synthesis of ammonia
-
- 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
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Hydrogen, Water And Hydrids (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT23895/74A IT1014987B (it) | 1974-06-12 | 1974-06-12 | Procedimento integrato urea am moniaca |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO752079L true NO752079L (ru) | 1975-12-15 |
Family
ID=11210703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO752079A NO752079L (ru) | 1974-06-12 | 1975-06-11 |
Country Status (34)
| Country | Link |
|---|---|
| US (1) | US4012443A (ru) |
| JP (1) | JPS5113721A (ru) |
| AR (1) | AR204277A1 (ru) |
| AT (1) | AT344722B (ru) |
| BE (1) | BE830108A (ru) |
| BG (1) | BG29133A3 (ru) |
| BR (1) | BR7503716A (ru) |
| CA (1) | CA1053701A (ru) |
| CH (1) | CH605697A5 (ru) |
| CS (1) | CS188228B2 (ru) |
| DD (1) | DD118620A5 (ru) |
| DK (1) | DK241975A (ru) |
| EG (1) | EG11907A (ru) |
| ES (1) | ES438366A1 (ru) |
| FR (1) | FR2274610A1 (ru) |
| GB (1) | GB1470489A (ru) |
| HU (1) | HU178091B (ru) |
| IE (1) | IE41544B1 (ru) |
| IN (1) | IN142473B (ru) |
| IT (1) | IT1014987B (ru) |
| LU (1) | LU72705A1 (ru) |
| MW (1) | MW3375A1 (ru) |
| MX (1) | MX3837E (ru) |
| NL (1) | NL7507044A (ru) |
| NO (1) | NO752079L (ru) |
| PH (1) | PH13614A (ru) |
| PL (1) | PL106455B1 (ru) |
| RO (1) | RO70955A (ru) |
| SE (1) | SE423538B (ru) |
| SU (1) | SU833158A3 (ru) |
| TR (1) | TR18475A (ru) |
| YU (1) | YU142675A (ru) |
| ZA (1) | ZA753321B (ru) |
| ZM (1) | ZM7175A1 (ru) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1034674B (it) * | 1975-03-28 | 1979-10-10 | Snam Progetti | Processo flessibile intergrato per la produzione di ammoniaca edurea |
| IT1068268B (it) * | 1976-09-09 | 1985-03-21 | Snam Progetti | Procedimento per la produzione di urea e purificazione delle acque |
| IT1065422B (it) * | 1976-12-23 | 1985-02-25 | Snam Progetti | Processo ammoniaca-urea integrato per la produzione di urea |
| SE446978B (sv) * | 1977-05-05 | 1986-10-20 | Montedison Spa | Isobariskt dubbelatercirkulationsforfarande for syntetisering av urea under bildning av ammoniumkarbamat som mellanprodukt |
| IT1094295B (it) * | 1978-04-05 | 1985-07-26 | Snam Progetti | Procedimento integrato ammoniaca-urea |
| US4235816A (en) * | 1979-03-08 | 1980-11-25 | Snamprogetti S.P.A. | Integrated ammonia-urea process |
| JPS55126880A (en) * | 1979-03-26 | 1980-10-01 | Nec Corp | Submarine stratum probing unit |
| US4869887A (en) * | 1987-10-30 | 1989-09-26 | Dijk Christiaan P Van | Integrated ammonia-urea process |
| US4988491A (en) * | 1989-04-11 | 1991-01-29 | Christiaan Van Dijk | Flexible integration of the production of ammonia and urea |
| US5523483A (en) * | 1995-06-16 | 1996-06-04 | The M. W. Kellogg Company | Integrated urea/ammonia process |
| EP0905127B1 (en) * | 1997-09-20 | 2001-11-28 | Urea Casale S.A. | Process for combined production of ammonia and urea |
| EP1036787B1 (en) * | 1999-03-16 | 2003-06-04 | Urea Casale S.A. | Method for modernizing a urea production plant |
| US6511644B1 (en) * | 2000-08-28 | 2003-01-28 | The Chemithon Corporation | Method for removing contaminants in reactors |
| EP1188710A3 (en) * | 2000-09-15 | 2003-10-29 | Haldor Topsoe A/S | Process for the integrated preparation of ammonia and urea |
| NL1022526C2 (nl) * | 2003-01-30 | 2004-08-04 | Dsm Nv | Werkwijze voor het afscheiden van NH3, en optioneel tevens CO2 en H2O, uit een mengsel bevattende NH3, CO2 en H2O. |
| RU2460569C1 (ru) * | 2011-02-10 | 2012-09-10 | Эдуард Владимирович Юрьев | Способ модернизации сепарационного узла газового (варианты) и сепаратор газовый (варианты) |
| CN114368761B (zh) * | 2022-03-23 | 2022-05-31 | 山东海科新源材料科技股份有限公司 | 一种液氨和氨水的联合制备装置及方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3349126A (en) * | 1962-09-10 | 1967-10-24 | Pullman Inc | Integrated ammonia and urea process |
| ES318356A1 (es) * | 1964-10-16 | 1966-05-16 | Toyo Koatsu Ind Incorporated | Metodo de depuracion de un efluente en la obtencion de urea sintetica. |
| GB1148991A (en) * | 1966-10-14 | 1969-04-16 | Toyo Koatsu Ind Inc | Process for synthesising urea |
| DE1668732A1 (de) * | 1966-10-25 | 1971-03-25 | Toyo Koatsu Ind Inc | Verfahren zum Behandeln des bei der Harnstoffsynthese im Ablauf vom Syntheseautoklaven enthaltenen nichtgesetzten Ammoniaks und Kohlendioxyds |
| CH498811A (de) * | 1967-05-22 | 1970-11-15 | Chemical Construction Corp | Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd |
| JPS4832091B1 (ru) * | 1968-02-12 | 1973-10-04 | ||
| NL156686B (nl) * | 1968-03-16 | 1978-05-16 | Stamicarbon | Werkwijze voor de bereiding van ureum in combinatie met de synthese van ammoniak. |
| JPS4830258B1 (ru) * | 1969-02-08 | 1973-09-18 | ||
| JPS4919259B1 (ru) * | 1969-08-30 | 1974-05-16 |
-
1974
- 1974-06-12 IT IT23895/74A patent/IT1014987B/it active
-
1975
- 1975-01-01 AR AR259154A patent/AR204277A1/es active
- 1975-05-22 ZA ZA00753321A patent/ZA753321B/xx unknown
- 1975-05-29 DK DK241975A patent/DK241975A/da not_active Application Discontinuation
- 1975-05-29 GB GB2353175A patent/GB1470489A/en not_active Expired
- 1975-05-29 MW MW33/75A patent/MW3375A1/xx unknown
- 1975-05-30 ES ES438366A patent/ES438366A1/es not_active Expired
- 1975-06-03 IE IE1235/75A patent/IE41544B1/en unknown
- 1975-06-03 YU YU01426/75A patent/YU142675A/xx unknown
- 1975-06-04 CH CH719175A patent/CH605697A5/xx not_active IP Right Cessation
- 1975-06-05 FR FR7517601A patent/FR2274610A1/fr active Granted
- 1975-06-05 IN IN1124/CAL/75A patent/IN142473B/en unknown
- 1975-06-06 PH PH17240A patent/PH13614A/en unknown
- 1975-06-08 EG EG334/75A patent/EG11907A/xx active
- 1975-06-09 MX MX75100289U patent/MX3837E/es unknown
- 1975-06-10 RO RO7582483A patent/RO70955A/ro unknown
- 1975-06-10 TR TR18475A patent/TR18475A/xx unknown
- 1975-06-10 LU LU72705A patent/LU72705A1/xx unknown
- 1975-06-10 ZM ZM71/75A patent/ZM7175A1/xx unknown
- 1975-06-11 PL PL1975181151A patent/PL106455B1/pl unknown
- 1975-06-11 CA CA229,049A patent/CA1053701A/en not_active Expired
- 1975-06-11 HU HU75SA2803A patent/HU178091B/hu unknown
- 1975-06-11 BE BE157223A patent/BE830108A/xx not_active IP Right Cessation
- 1975-06-11 BR BR4771/75D patent/BR7503716A/pt unknown
- 1975-06-11 CS CS754114A patent/CS188228B2/cs unknown
- 1975-06-11 NO NO752079A patent/NO752079L/no unknown
- 1975-06-12 BG BG7530270A patent/BG29133A3/xx unknown
- 1975-06-12 SE SE7506762A patent/SE423538B/xx unknown
- 1975-06-12 SU SU752143211A patent/SU833158A3/ru active
- 1975-06-12 JP JP50070240A patent/JPS5113721A/ja active Granted
- 1975-06-12 DD DD186604A patent/DD118620A5/xx unknown
- 1975-06-12 NL NL7507044A patent/NL7507044A/xx not_active Application Discontinuation
- 1975-06-12 AT AT451375A patent/AT344722B/de not_active IP Right Cessation
- 1975-06-12 US US05/586,359 patent/US4012443A/en not_active Expired - Lifetime
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO752079L (ru) | ||
| US4053507A (en) | Method of recovering unreacted materials and heat in urea synthesis | |
| KR870000808B1 (ko) | 요소 합성방법 | |
| US6852886B2 (en) | Process for the preparation of urea | |
| EP0093466B1 (en) | Process for the preparation of urea | |
| NL8101209A (nl) | Werkwijze voor het verwijderen van niet-omgezette verbindingen bij de bereiding van ureum. | |
| HU180579B (en) | Process for cleaning urea-containing waste waters and for producing melamine | |
| US4801745A (en) | Improved process for the preparation of urea | |
| AU2002303036A1 (en) | Process for the preparation of urea | |
| US4801746A (en) | Process for the preparation of urea | |
| US3155722A (en) | Recovery of residual ammonia and carbon dioxide in the synthesis of urea | |
| SU1064863A3 (ru) | Способ получени мочевины | |
| US4433146A (en) | Process for the preparation of melamine | |
| EP2521710B1 (en) | A urea stripping process for the production of urea | |
| US4504679A (en) | Process for synthesizing urea | |
| US4801747A (en) | Process for preparing urea | |
| US4115449A (en) | Process for preparing a urea solution from ammonia and carbon dioxide | |
| US3470247A (en) | Process for the production of urea by synthesis of ammonia and carbon dioxide,with total recycling of the portion which has not been converted into urea | |
| CN110041230B (zh) | 回收三聚氰胺装置尾气的汽提法尿素生产工艺 | |
| US3107149A (en) | Method of separating ammonia from carbon dioxide | |
| CS228529B2 (en) | Process for the production of urea | |
| US3668250A (en) | Urea synthesis process | |
| US4053508A (en) | Process and installation for preparing urea from ammonia and carbon dioxide | |
| KR830002201B1 (ko) | 요소의 제조방법 | |
| KR790001171B1 (ko) | 요소합성에 있어서의 미반응물 및 열의 회수법 |