DD142709A5 - Verfahren zur herstellung von harnstoff - Google Patents
Verfahren zur herstellung von harnstoff Download PDFInfo
- Publication number
- DD142709A5 DD142709A5 DD79211973A DD21197379A DD142709A5 DD 142709 A5 DD142709 A5 DD 142709A5 DD 79211973 A DD79211973 A DD 79211973A DD 21197379 A DD21197379 A DD 21197379A DD 142709 A5 DD142709 A5 DD 142709A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- urea
- ammonia
- solution
- scraper
- carbamate
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 55
- 239000004202 carbamide Substances 0.000 title claims description 55
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 78
- 229910021529 ammonia Inorganic materials 0.000 claims description 35
- 230000015572 biosynthetic process Effects 0.000 claims description 33
- 238000003786 synthesis reaction Methods 0.000 claims description 33
- 239000007789 gas Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 238000000354 decomposition reaction Methods 0.000 claims description 16
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 15
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 14
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 12
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 239000001099 ammonium carbonate Substances 0.000 claims description 9
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 9
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 8
- 239000006096 absorbing agent Substances 0.000 claims description 8
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000005201 scrubbing Methods 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000000629 steam reforming Methods 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 239000012141 concentrate Substances 0.000 claims 1
- 239000000110 cooling liquid Substances 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 238000010626 work up procedure Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 33
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 239000001569 carbon dioxide Substances 0.000 description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012808 vapor 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
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 |
|---|---|---|---|
| IT21993/78A IT1094295B (it) | 1978-04-05 | 1978-04-05 | Procedimento integrato ammoniaca-urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD142709A5 true DD142709A5 (de) | 1980-07-09 |
Family
ID=11189914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD79211973A DD142709A5 (de) | 1978-04-05 | 1979-04-03 | Verfahren zur herstellung von harnstoff |
Country Status (23)
| Country | Link |
|---|---|
| JP (1) | JPS54132525A (sv) |
| AU (1) | AU519817B2 (sv) |
| BE (1) | BE875346A (sv) |
| BR (1) | BR7902122A (sv) |
| CA (1) | CA1110659A (sv) |
| CH (1) | CH637633A5 (sv) |
| CS (1) | CS230563B2 (sv) |
| DD (1) | DD142709A5 (sv) |
| DE (1) | DE2913793C3 (sv) |
| DK (1) | DK139179A (sv) |
| EG (1) | EG13847A (sv) |
| ES (1) | ES479940A1 (sv) |
| FR (1) | FR2421847A1 (sv) |
| GB (1) | GB2018249B (sv) |
| IE (1) | IE48099B1 (sv) |
| IN (1) | IN150631B (sv) |
| IT (1) | IT1094295B (sv) |
| LU (1) | LU81113A1 (sv) |
| MX (1) | MX151216A (sv) |
| NL (1) | NL7902566A (sv) |
| PL (1) | PL116665B1 (sv) |
| SE (1) | SE432591B (sv) |
| SU (1) | SU1225485A3 (sv) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109760A (ja) * | 1984-11-02 | 1986-05-28 | Toyo Eng Corp | 尿素製造法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4832091B1 (sv) * | 1968-02-12 | 1973-10-04 | ||
| IT1014987B (it) * | 1974-06-12 | 1977-04-30 | Snam Progetti | Procedimento integrato urea am moniaca |
| IT1034674B (it) * | 1975-03-28 | 1979-10-10 | Snam Progetti | Processo flessibile intergrato per la produzione di ammoniaca edurea |
| IT1065422B (it) * | 1976-12-23 | 1985-02-25 | Snam Progetti | Processo ammoniaca-urea integrato per la produzione di urea |
-
1978
- 1978-04-05 IT IT21993/78A patent/IT1094295B/it active
-
1979
- 1979-03-07 AU AU44876/79A patent/AU519817B2/en not_active Ceased
- 1979-03-08 CA CA323,007A patent/CA1110659A/en not_active Expired
- 1979-03-15 GB GB7909086A patent/GB2018249B/en not_active Expired
- 1979-03-24 IN IN289/CAL/79A patent/IN150631B/en unknown
- 1979-03-28 EG EG195/79A patent/EG13847A/xx active
- 1979-03-28 FR FR7907848A patent/FR2421847A1/fr active Granted
- 1979-03-29 JP JP3633279A patent/JPS54132525A/ja active Pending
- 1979-03-30 ES ES479940A patent/ES479940A1/es not_active Expired
- 1979-04-02 NL NL7902566A patent/NL7902566A/xx not_active Application Discontinuation
- 1979-04-03 DD DD79211973A patent/DD142709A5/de unknown
- 1979-04-03 PL PL1979214649A patent/PL116665B1/pl unknown
- 1979-04-03 LU LU81113A patent/LU81113A1/xx unknown
- 1979-04-04 MX MX177195A patent/MX151216A/es unknown
- 1979-04-04 DK DK139179A patent/DK139179A/da not_active IP Right Cessation
- 1979-04-04 SE SE7903018A patent/SE432591B/sv not_active IP Right Cessation
- 1979-04-04 CS CS792292A patent/CS230563B2/cs unknown
- 1979-04-04 SU SU792749003A patent/SU1225485A3/ru active
- 1979-04-04 CH CH313979A patent/CH637633A5/it not_active IP Right Cessation
- 1979-04-05 DE DE2913793A patent/DE2913793C3/de not_active Expired
- 1979-04-05 BR BR7902122A patent/BR7902122A/pt unknown
- 1979-04-05 BE BE0/194424A patent/BE875346A/xx not_active IP Right Cessation
- 1979-08-08 IE IE706/79A patent/IE48099B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT1094295B (it) | 1985-07-26 |
| FR2421847B1 (sv) | 1982-10-22 |
| CA1110659A (en) | 1981-10-13 |
| DK139179A (da) | 1979-10-06 |
| AU4487679A (en) | 1979-10-18 |
| CH637633A5 (it) | 1983-08-15 |
| MX151216A (es) | 1984-10-11 |
| SE432591B (sv) | 1984-04-09 |
| PL214649A1 (pl) | 1979-12-17 |
| JPS54132525A (en) | 1979-10-15 |
| EG13847A (en) | 1982-12-31 |
| PL116665B1 (en) | 1981-06-30 |
| DE2913793A1 (de) | 1979-10-11 |
| IT7821993A0 (it) | 1978-04-05 |
| GB2018249B (en) | 1982-09-02 |
| ES479940A1 (es) | 1979-12-01 |
| BE875346A (fr) | 1979-10-05 |
| SU1225485A3 (ru) | 1986-04-15 |
| CS230563B2 (en) | 1984-08-13 |
| SE7903018L (sv) | 1979-10-06 |
| BR7902122A (pt) | 1979-12-04 |
| FR2421847A1 (fr) | 1979-11-02 |
| IN150631B (sv) | 1982-11-20 |
| IE790706L (en) | 1979-10-05 |
| LU81113A1 (fr) | 1979-06-19 |
| GB2018249A (en) | 1979-10-17 |
| DE2913793C3 (de) | 1981-05-27 |
| DE2913793B2 (de) | 1980-06-04 |
| AU519817B2 (en) | 1981-12-24 |
| IE48099B1 (en) | 1984-09-19 |
| NL7902566A (nl) | 1979-10-09 |
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