DD204250A5 - Verfahren zur herstellung von harnstoff - Google Patents
Verfahren zur herstellung von harnstoff Download PDFInfo
- Publication number
- DD204250A5 DD204250A5 DD82242880A DD24288082A DD204250A5 DD 204250 A5 DD204250 A5 DD 204250A5 DD 82242880 A DD82242880 A DD 82242880A DD 24288082 A DD24288082 A DD 24288082A DD 204250 A5 DD204250 A5 DD 204250A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- urea
- reaction zone
- zone
- pressure
- stripping
- Prior art date
Links
- 239000004202 carbamide Substances 0.000 title claims abstract description 125
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 151
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 130
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 118
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 65
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 59
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 59
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims abstract description 56
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 44
- 239000000203 mixture Substances 0.000 claims description 60
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 34
- 238000000354 decomposition reaction Methods 0.000 claims description 12
- 238000003795 desorption Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims description 2
- 238000000844 transformation Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 32
- 229910001868 water Inorganic materials 0.000 description 26
- 230000015572 biosynthetic process Effects 0.000 description 25
- 239000000047 product Substances 0.000 description 25
- 238000003786 synthesis reaction Methods 0.000 description 23
- 239000011261 inert gas Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 10
- 238000009833 condensation Methods 0.000 description 9
- 230000005494 condensation Effects 0.000 description 9
- 238000005201 scrubbing Methods 0.000 description 8
- 238000002156 mixing Methods 0.000 description 4
- 150000003672 ureas Chemical class 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 101000588924 Anthopleura elegantissima Delta-actitoxin-Ael1a Proteins 0.000 description 1
- 101100129922 Caenorhabditis elegans pig-1 gene Proteins 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 101100520057 Drosophila melanogaster Pig1 gene Proteins 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- WWJROBNVMZSTTG-UHFFFAOYSA-N azanium;urea;carbamate Chemical compound N.NC(N)=O.NC(O)=O WWJROBNVMZSTTG-UHFFFAOYSA-N 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005406 washing Methods 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
-
- 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
- C07C273/08—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 ammoniacal liquor
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Saccharide Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8104039A NL8104039A (nl) | 1981-09-01 | 1981-09-01 | Werkwijze voor de bereiding van ureum. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD204250A5 true DD204250A5 (de) | 1983-11-23 |
Family
ID=19837995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD82242880A DD204250A5 (de) | 1981-09-01 | 1982-08-30 | Verfahren zur herstellung von harnstoff |
Country Status (15)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8303424A (nl) * | 1983-10-06 | 1985-05-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| IT1290423B1 (it) * | 1996-10-17 | 1998-12-03 | Eurotecnica Contractors And En | Procedimento per la sintesi di urea da anidride carbonica e ammoniaca |
| RU2529462C1 (ru) * | 2013-05-15 | 2014-09-27 | Открытое акционерное общество "Научно-исследовательский и проектный институт карбамида и продуктов органического синтеза" (ОАО "НИИК") | Способ получения карбамида |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1147734A (en) * | 1966-03-29 | 1969-04-02 | Sumitomo Chemical Co | Method for the preparation of urea |
| CH468356A (de) * | 1966-04-05 | 1969-02-15 | Inventa Ag | Verfahren zur Aufarbeitung des bei der Synthese von Harnstoff aus Ammoniak und Kohlendioxyd in einem Synthesereaktor bei erhöhtem Druck und erhöhter Temperatur erhaltenen Synthesegemisches |
| NL168506C (nl) * | 1970-12-31 | 1982-04-16 | Stamicarbon | Werkwijze voor de bereiding van ureum. |
| BE787832A (fr) * | 1971-09-02 | 1973-02-22 | Stamicarbon | Procede pour la preparation d'uree |
| NL7307036A (enrdf_load_stackoverflow) * | 1973-05-21 | 1974-11-25 |
-
1981
- 1981-09-01 NL NL8104039A patent/NL8104039A/nl not_active Application Discontinuation
-
1982
- 1982-08-10 ZA ZA825789A patent/ZA825789B/xx unknown
- 1982-08-30 GR GR69157A patent/GR76909B/el unknown
- 1982-08-30 DD DD82242880A patent/DD204250A5/de unknown
- 1982-08-30 IT IT49046/82A patent/IT1149070B/it active
- 1982-08-31 PL PL23809382A patent/PL238093A1/xx unknown
- 1982-08-31 EP EP82902529A patent/EP0086804A1/en not_active Withdrawn
- 1982-08-31 WO PCT/EP1982/000187 patent/WO1983000861A1/en not_active Application Discontinuation
- 1982-08-31 ES ES515378A patent/ES8306104A1/es not_active Expired
- 1982-08-31 BR BR8207840A patent/BR8207840A/pt unknown
- 1982-08-31 JP JP57502599A patent/JPS58501374A/ja active Pending
- 1982-08-31 KR KR1019820003930A patent/KR840001132A/ko not_active Withdrawn
- 1982-09-01 GB GB08224952A patent/GB2107704A/en not_active Withdrawn
- 1982-09-01 OA OA57793A patent/OA07201A/xx unknown
-
1983
- 1983-04-29 NO NO831532A patent/NO831532L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GR76909B (enrdf_load_stackoverflow) | 1984-09-04 |
| BR8207840A (pt) | 1983-09-06 |
| JPS58501374A (ja) | 1983-08-18 |
| GB2107704A (en) | 1983-05-05 |
| ES515378A0 (es) | 1983-05-01 |
| EP0086804A1 (en) | 1983-08-31 |
| ZA825789B (en) | 1983-06-29 |
| IT1149070B (it) | 1986-12-03 |
| IT8249046A0 (it) | 1982-08-30 |
| ES8306104A1 (es) | 1983-05-01 |
| NO831532L (no) | 1983-04-29 |
| WO1983000861A1 (en) | 1983-03-17 |
| PL238093A1 (en) | 1983-03-28 |
| OA07201A (fr) | 1984-04-30 |
| NL8104039A (nl) | 1983-04-05 |
| KR840001132A (ko) | 1984-03-28 |
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