CH632240A5 - Urea production process - Google Patents
Urea production process Download PDFInfo
- Publication number
- CH632240A5 CH632240A5 CH335878A CH335878A CH632240A5 CH 632240 A5 CH632240 A5 CH 632240A5 CH 335878 A CH335878 A CH 335878A CH 335878 A CH335878 A CH 335878A CH 632240 A5 CH632240 A5 CH 632240A5
- Authority
- CH
- Switzerland
- Prior art keywords
- ammonia
- carbon dioxide
- absorber
- reactor
- urea
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 17
- 239000004202 carbamide Substances 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 80
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 31
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 26
- 239000006096 absorbing agent Substances 0.000 claims description 20
- 229910021529 ammonia Inorganic materials 0.000 claims description 20
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 16
- 239000001569 carbon dioxide Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000003786 synthesis reaction Methods 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 2
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 claims 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims 1
- 239000001099 ammonium carbonate Substances 0.000 claims 1
- 235000012501 ammonium carbonate Nutrition 0.000 claims 1
- 235000011114 ammonium hydroxide Nutrition 0.000 claims 1
- 239000000376 reactant Substances 0.000 claims 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010494 dissociation reaction Methods 0.000 description 4
- 230000005593 dissociations Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000126 substance 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
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 |
|---|---|---|---|
| IT21904/77A IT1075371B (it) | 1977-03-31 | 1977-03-31 | Processo per la produzione di urea partendo da co2 e nh3 pure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH632240A5 true CH632240A5 (en) | 1982-09-30 |
Family
ID=11188506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH335878A CH632240A5 (en) | 1977-03-31 | 1978-03-29 | Urea production process |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS53149929A (xx) |
| AR (1) | AR214002A1 (xx) |
| AU (1) | AU519725B2 (xx) |
| BE (1) | BE865585A (xx) |
| BR (1) | BR7802007A (xx) |
| CA (1) | CA1101884A (xx) |
| CH (1) | CH632240A5 (xx) |
| CS (1) | CS204026B2 (xx) |
| DD (1) | DD134223A5 (xx) |
| DE (1) | DE2813528C3 (xx) |
| DK (1) | DK140378A (xx) |
| ES (1) | ES469090A1 (xx) |
| FR (1) | FR2385690A1 (xx) |
| GB (1) | GB1586629A (xx) |
| IE (1) | IE46700B1 (xx) |
| IT (1) | IT1075371B (xx) |
| LU (1) | LU79340A1 (xx) |
| NL (1) | NL7803338A (xx) |
| PL (1) | PL108056B1 (xx) |
| SE (1) | SE7803685L (xx) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE790015A (fr) * | 1971-10-19 | 1973-04-12 | Mavrovic Ivo | Synthese de l'uree avec conversion et recuperation de chaleur ameliorees |
-
1977
- 1977-03-31 IT IT21904/77A patent/IT1075371B/it active
-
1978
- 1978-03-20 AU AU34291/78A patent/AU519725B2/en not_active Expired
- 1978-03-21 GB GB11243/78A patent/GB1586629A/en not_active Expired
- 1978-03-22 CA CA299,501A patent/CA1101884A/en not_active Expired
- 1978-03-28 AR AR271575A patent/AR214002A1/es active
- 1978-03-28 ES ES469090A patent/ES469090A1/es not_active Expired
- 1978-03-29 CH CH335878A patent/CH632240A5/it not_active IP Right Cessation
- 1978-03-29 DE DE2813528A patent/DE2813528C3/de not_active Expired
- 1978-03-29 NL NL7803338A patent/NL7803338A/xx not_active Application Discontinuation
- 1978-03-29 PL PL1978205651A patent/PL108056B1/pl unknown
- 1978-03-30 IE IE636/78A patent/IE46700B1/en unknown
- 1978-03-30 CS CS782044A patent/CS204026B2/cs unknown
- 1978-03-30 FR FR7809361A patent/FR2385690A1/fr not_active Withdrawn
- 1978-03-30 LU LU79340A patent/LU79340A1/xx unknown
- 1978-03-30 DK DK140378A patent/DK140378A/da unknown
- 1978-03-31 DD DD78204529A patent/DD134223A5/xx unknown
- 1978-03-31 SE SE7803685A patent/SE7803685L/xx unknown
- 1978-03-31 BR BR7802007A patent/BR7802007A/pt unknown
- 1978-03-31 JP JP3695778A patent/JPS53149929A/ja active Pending
- 1978-03-31 BE BE186482A patent/BE865585A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IE46700B1 (en) | 1983-08-24 |
| CS204026B2 (en) | 1981-03-31 |
| PL205651A1 (pl) | 1978-12-04 |
| LU79340A1 (fr) | 1978-07-13 |
| IE780636L (en) | 1978-11-30 |
| JPS53149929A (en) | 1978-12-27 |
| BR7802007A (pt) | 1979-04-03 |
| PL108056B1 (pl) | 1980-03-31 |
| DE2813528B2 (de) | 1979-07-26 |
| CA1101884A (en) | 1981-05-26 |
| DK140378A (da) | 1978-10-01 |
| DD134223A5 (de) | 1979-02-14 |
| FR2385690A1 (fr) | 1978-10-27 |
| GB1586629A (en) | 1981-03-25 |
| SE7803685L (sv) | 1978-10-01 |
| BE865585A (fr) | 1978-10-02 |
| DE2813528A1 (de) | 1978-10-12 |
| AU3429178A (en) | 1979-09-27 |
| ES469090A1 (es) | 1978-11-16 |
| AU519725B2 (en) | 1981-12-17 |
| NL7803338A (nl) | 1978-10-03 |
| AR214002A1 (es) | 1979-04-11 |
| IT1075371B (it) | 1985-04-22 |
| DE2813528C3 (de) | 1980-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |