CH622006A5 - Process for the condensation of carbamate in urea synthesis plants - Google Patents
Process for the condensation of carbamate in urea synthesis plants Download PDFInfo
- Publication number
- CH622006A5 CH622006A5 CH902776A CH902776A CH622006A5 CH 622006 A5 CH622006 A5 CH 622006A5 CH 902776 A CH902776 A CH 902776A CH 902776 A CH902776 A CH 902776A CH 622006 A5 CH622006 A5 CH 622006A5
- Authority
- CH
- Switzerland
- Prior art keywords
- condensation
- carbamate
- vapors
- liquid
- process according
- Prior art date
Links
- 238000009833 condensation Methods 0.000 title claims abstract description 25
- 230000005494 condensation Effects 0.000 title claims abstract description 25
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 6
- 239000004202 carbamide Substances 0.000 title claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 5
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 5
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 14
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 5
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 5
- 239000001099 ammonium carbonate Substances 0.000 claims description 5
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 abstract description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 1
- 229910001868 water Inorganic materials 0.000 description 18
- 239000000243 solution Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004064 recycling Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012071 phase 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
- C07C273/04—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
-
- 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
- Y02P20/141—Feedstock
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2261575A IT1037576B (it) | 1975-04-23 | 1975-04-23 | Procedimento per la condensazione del carbammato in impianti di sintesi dell urea |
| AU15623/76A AU506832B2 (en) | 1975-04-23 | 1976-07-06 | Formation of ammonium carbamate solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH622006A5 true CH622006A5 (en) | 1981-03-13 |
Family
ID=25616093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH902776A CH622006A5 (en) | 1975-04-23 | 1976-07-13 | Process for the condensation of carbamate in urea synthesis plants |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4082797A (OSRAM) |
| JP (1) | JPS6023109B2 (OSRAM) |
| AT (1) | AT344197B (OSRAM) |
| AU (1) | AU506832B2 (OSRAM) |
| BE (1) | BE844047A (OSRAM) |
| CA (1) | CA1069932A (OSRAM) |
| CH (1) | CH622006A5 (OSRAM) |
| CS (1) | CS196306B2 (OSRAM) |
| DE (1) | DE2617185C3 (OSRAM) |
| FR (1) | FR2308615A1 (OSRAM) |
| GB (1) | GB1506129A (OSRAM) |
| IN (1) | IN144536B (OSRAM) |
| NL (1) | NL167157C (OSRAM) |
| SE (1) | SE423386B (OSRAM) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1068268B (it) * | 1976-09-09 | 1985-03-21 | Snam Progetti | Procedimento per la produzione di urea e purificazione delle acque |
| UA26895C2 (uk) * | 1990-03-12 | 1999-12-29 | Уріа Казале С.А. | Спосіб коhдеhсації парів аміаку, вуглекислого газу і води та пристрій для його здійсhеhhя |
| CN103349848B (zh) * | 2013-06-18 | 2015-07-08 | 盐城汇百实业有限公司 | 一种冷凝装置 |
| KR102220177B1 (ko) | 2017-10-27 | 2021-02-26 | 스태미카본 비.브이. | 고압 카바메이트 응축기 |
| AU2022420708B2 (en) | 2021-12-20 | 2025-07-10 | Stamicarbon B.V. | Thermal stripping urea production |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2302993A (en) * | 1940-12-07 | 1942-11-24 | Lummus Co | Evaporator |
| US2560070A (en) * | 1948-08-27 | 1951-07-10 | Lummus Co | Evaporator |
| CH498811A (de) * | 1967-05-22 | 1970-11-15 | Chemical Construction Corp | Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd |
| US3984469A (en) * | 1969-10-16 | 1976-10-05 | Snam Progetti S.P.A. | Process for the production of urea |
| US3940440A (en) * | 1970-11-10 | 1976-02-24 | Ivo Mavrovic | Method of controlling urea system |
-
1976
- 1976-04-20 GB GB16012/76A patent/GB1506129A/en not_active Expired
- 1976-04-20 DE DE2617185A patent/DE2617185C3/de not_active Expired
- 1976-04-20 US US05/678,635 patent/US4082797A/en not_active Expired - Lifetime
- 1976-04-22 NL NLAANVRAGE7604303,A patent/NL167157C/xx not_active IP Right Cessation
- 1976-04-22 CS CS762673A patent/CS196306B2/cs unknown
- 1976-04-22 FR FR7611952A patent/FR2308615A1/fr active Granted
- 1976-04-23 JP JP51045614A patent/JPS6023109B2/ja not_active Expired
- 1976-07-06 AU AU15623/76A patent/AU506832B2/en not_active Expired
- 1976-07-09 AT AT508576A patent/AT344197B/de not_active IP Right Cessation
- 1976-07-12 BE BE168843A patent/BE844047A/xx not_active IP Right Cessation
- 1976-07-13 CH CH902776A patent/CH622006A5/it not_active IP Right Cessation
- 1976-07-17 IN IN1284/CAL/1976A patent/IN144536B/en unknown
- 1976-07-20 CA CA257,369A patent/CA1069932A/en not_active Expired
- 1976-07-21 SE SE7608335A patent/SE423386B/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL167157B (nl) | 1981-06-16 |
| CS196306B2 (en) | 1980-03-31 |
| AU1562376A (en) | 1978-01-12 |
| ATA508576A (de) | 1977-11-15 |
| IN144536B (OSRAM) | 1978-05-13 |
| NL7604303A (nl) | 1976-10-26 |
| FR2308615B1 (OSRAM) | 1979-04-20 |
| BE844047A (fr) | 1977-01-12 |
| CA1069932A (en) | 1980-01-15 |
| SE7608335L (sv) | 1978-01-22 |
| US4082797A (en) | 1978-04-04 |
| AT344197B (de) | 1978-07-10 |
| DE2617185C3 (de) | 1978-07-13 |
| NL167157C (nl) | 1987-10-16 |
| DE2617185A1 (de) | 1976-10-28 |
| JPS6023109B2 (ja) | 1985-06-05 |
| FR2308615A1 (fr) | 1976-11-19 |
| JPS51128917A (en) | 1976-11-10 |
| DE2617185B2 (de) | 1977-11-24 |
| AU506832B2 (en) | 1980-01-24 |
| GB1506129A (en) | 1978-04-05 |
| SE423386B (sv) | 1982-05-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |