DE2154946A1 - Verfahren zur Steuerung eines Harnstoffsyntheseverfahrens - Google Patents
Verfahren zur Steuerung eines HarnstoffsyntheseverfahrensInfo
- Publication number
- DE2154946A1 DE2154946A1 DE19712154946 DE2154946A DE2154946A1 DE 2154946 A1 DE2154946 A1 DE 2154946A1 DE 19712154946 DE19712154946 DE 19712154946 DE 2154946 A DE2154946 A DE 2154946A DE 2154946 A1 DE2154946 A1 DE 2154946A1
- Authority
- DE
- Germany
- Prior art keywords
- reactor
- urea
- water
- ammonium carbamate
- solution
- 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.)
- Pending
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 145
- 239000004202 carbamide Substances 0.000 title claims description 85
- 238000000034 method Methods 0.000 title claims description 50
- 230000015572 biosynthetic process Effects 0.000 title claims description 15
- 238000003786 synthesis reaction Methods 0.000 title claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 116
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 112
- 229910001868 water Inorganic materials 0.000 claims description 95
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 58
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 56
- 229910021529 ammonia Inorganic materials 0.000 claims description 52
- 239000007788 liquid Substances 0.000 claims description 39
- 239000007791 liquid phase Substances 0.000 claims description 20
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 18
- 238000009833 condensation Methods 0.000 claims description 15
- 230000005494 condensation Effects 0.000 claims description 15
- 238000000354 decomposition reaction Methods 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 9
- 239000001569 carbon dioxide Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 239000012071 phase Substances 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims 2
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 claims 1
- 239000000243 solution Substances 0.000 description 111
- 235000013877 carbamide Nutrition 0.000 description 61
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 60
- 239000007789 gas Substances 0.000 description 19
- 239000003990 capacitor Substances 0.000 description 18
- 239000000047 product Substances 0.000 description 16
- 239000000498 cooling water Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 13
- 238000001816 cooling Methods 0.000 description 13
- 239000007864 aqueous solution Substances 0.000 description 10
- 230000000704 physical effect Effects 0.000 description 10
- 230000007423 decrease Effects 0.000 description 8
- 238000002425 crystallisation Methods 0.000 description 7
- 230000008025 crystallization Effects 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 210000002700 urine Anatomy 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000007792 gaseous phase Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000002485 urinary effect Effects 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 241001315609 Pittosporum crassifolium Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 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
- 230000003466 anti-cipated effect Effects 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
- TWFZGCMQGLPBSX-UHFFFAOYSA-N carbendazim Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1 TWFZGCMQGLPBSX-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000019988 mead Nutrition 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material 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 |
|---|---|---|---|
| US8827270A | 1970-11-10 | 1970-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2154946A1 true DE2154946A1 (de) | 1972-05-18 |
Family
ID=22210405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712154946 Pending DE2154946A1 (de) | 1970-11-10 | 1971-11-05 | Verfahren zur Steuerung eines Harnstoffsyntheseverfahrens |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5613709B1 (enExample) |
| BE (1) | BE775178A (enExample) |
| BR (1) | BR7107475D0 (enExample) |
| CA (1) | CA952535A (enExample) |
| DE (1) | DE2154946A1 (enExample) |
| ES (1) | ES396661A1 (enExample) |
| FR (1) | FR2112875A5 (enExample) |
| GB (1) | GB1361078A (enExample) |
| IT (1) | IT941733B (enExample) |
| NL (1) | NL7115468A (enExample) |
| TR (1) | TR16644A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7048910B2 (en) | 2000-09-07 | 2006-05-23 | Merck Patent Gmbh | Use of ectoine or ectoine derivatives for oral care |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113282121B (zh) * | 2021-05-27 | 2024-08-20 | 东莞德盛肥料科技有限公司 | 一种具有智能化的化肥生产控制系统 |
-
1970
- 1970-12-29 FR FR7047008A patent/FR2112875A5/fr not_active Expired
-
1971
- 1971-10-21 GB GB4888771A patent/GB1361078A/en not_active Expired
- 1971-11-02 CA CA126,683A patent/CA952535A/en not_active Expired
- 1971-11-04 ES ES396661A patent/ES396661A1/es not_active Expired
- 1971-11-05 DE DE19712154946 patent/DE2154946A1/de active Pending
- 1971-11-08 JP JP8834571A patent/JPS5613709B1/ja active Pending
- 1971-11-09 IT IT3087671A patent/IT941733B/it active
- 1971-11-09 BR BR747571A patent/BR7107475D0/pt unknown
- 1971-11-10 TR TR1664471A patent/TR16644A/xx unknown
- 1971-11-10 NL NL7115468A patent/NL7115468A/xx active Search and Examination
- 1971-11-10 BE BE775178A patent/BE775178A/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7048910B2 (en) | 2000-09-07 | 2006-05-23 | Merck Patent Gmbh | Use of ectoine or ectoine derivatives for oral care |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2112875A5 (enExample) | 1972-06-23 |
| BE775178A (fr) | 1972-03-01 |
| BR7107475D0 (pt) | 1973-04-19 |
| NL7115468A (enExample) | 1972-05-15 |
| CA952535A (en) | 1974-08-06 |
| TR16644A (tr) | 1973-01-01 |
| GB1361078A (en) | 1974-07-24 |
| ES396661A1 (es) | 1974-05-16 |
| IT941733B (it) | 1973-03-10 |
| JPS5613709B1 (enExample) | 1981-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |