BE736632A - - Google Patents
Info
- Publication number
- BE736632A BE736632A BE736632DA BE736632A BE 736632 A BE736632 A BE 736632A BE 736632D A BE736632D A BE 736632DA BE 736632 A BE736632 A BE 736632A
- Authority
- BE
- Belgium
- Prior art keywords
- ammonia
- decomposition
- stage
- urea
- heat
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 147
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 111
- 229910021529 ammonia Inorganic materials 0.000 claims description 73
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 65
- 238000000354 decomposition reaction Methods 0.000 claims description 61
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 60
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 59
- 239000004202 carbamide Substances 0.000 claims description 58
- 230000015572 biosynthetic process Effects 0.000 claims description 55
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 33
- 239000001569 carbon dioxide Substances 0.000 claims description 32
- 238000003786 synthesis reaction Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 13
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005494 condensation Effects 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 239000007795 chemical reaction product Substances 0.000 claims description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 10
- 238000004090 dissolution Methods 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 8
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 6
- 239000011541 reaction mixture Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 235000013877 carbamide Nutrition 0.000 description 53
- 229960004424 carbon dioxide Drugs 0.000 description 30
- 238000006243 chemical reaction Methods 0.000 description 24
- 238000010521 absorption reaction Methods 0.000 description 18
- 239000000243 solution Substances 0.000 description 17
- 239000007789 gas Substances 0.000 description 7
- 239000011261 inert gas Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000007796 conventional method Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 4
- 239000001099 ammonium carbonate Substances 0.000 description 4
- 235000012501 ammonium carbonate Nutrition 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 for example H2 Chemical compound 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 241001214714 Niea Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 201000002266 mite infestation Diseases 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE736632 | 1969-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE736632A true BE736632A (enrdf_load_stackoverflow) | 1969-12-31 |
Family
ID=3855108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE736632D BE736632A (enrdf_load_stackoverflow) | 1969-07-28 | 1969-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE736632A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2497511A1 (fr) * | 1980-12-23 | 1982-07-09 | Mitsui Toatsu Chemicals | Procede de synthese de l'uree |
-
1969
- 1969-07-28 BE BE736632D patent/BE736632A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2497511A1 (fr) * | 1980-12-23 | 1982-07-09 | Mitsui Toatsu Chemicals | Procede de synthese de l'uree |
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