DE2143583C3 - Verfahren zur Herstellung von Harnstoff - Google Patents
Verfahren zur Herstellung von HarnstoffInfo
- Publication number
- DE2143583C3 DE2143583C3 DE2143583A DE2143583A DE2143583C3 DE 2143583 C3 DE2143583 C3 DE 2143583C3 DE 2143583 A DE2143583 A DE 2143583A DE 2143583 A DE2143583 A DE 2143583A DE 2143583 C3 DE2143583 C3 DE 2143583C3
- Authority
- DE
- Germany
- Prior art keywords
- ammonia
- urea
- synthesis
- solution
- carbamate
- 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.)
- Expired
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 64
- 239000004202 carbamide Substances 0.000 title claims description 63
- 238000000034 method Methods 0.000 title claims description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 194
- 229910021529 ammonia Inorganic materials 0.000 claims description 91
- 230000015572 biosynthetic process Effects 0.000 claims description 78
- 238000003786 synthesis reaction Methods 0.000 claims description 70
- 239000007789 gas Substances 0.000 claims description 67
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 48
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 34
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 27
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 26
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 26
- 238000000354 decomposition reaction Methods 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 239000001569 carbon dioxide Substances 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 10
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 6
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 239000000047 product Substances 0.000 claims 3
- 239000002904 solvent Substances 0.000 claims 2
- 150000004657 carbamic acid derivatives Chemical class 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 239000013067 intermediate product Substances 0.000 claims 1
- 230000002211 methanization Effects 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 230000008929 regeneration Effects 0.000 claims 1
- 238000011069 regeneration method Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 28
- 239000000203 mixture Substances 0.000 description 11
- 239000006096 absorbing agent Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 101001018064 Homo sapiens Lysosomal-trafficking regulator Proteins 0.000 description 1
- 102100033472 Lysosomal-trafficking regulator Human genes 0.000 description 1
- 235000010703 Modiola caroliniana Nutrition 0.000 description 1
- 244000038561 Modiola caroliniana Species 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- ZEYWAHILTZGZBH-UHFFFAOYSA-N azane;carbon dioxide Chemical compound N.O=C=O ZEYWAHILTZGZBH-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000013020 steam cleaning Methods 0.000 description 1
- 230000004143 urea cycle Effects 0.000 description 1
- 210000002700 urine Anatomy 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
-
- 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
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2929570 | 1970-09-03 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2143583A1 DE2143583A1 (de) | 1972-04-20 |
| DE2143583B2 DE2143583B2 (de) | 1974-12-12 |
| DE2143583C3 true DE2143583C3 (de) | 1981-10-15 |
Family
ID=11226704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2143583A Expired DE2143583C3 (de) | 1970-09-03 | 1971-08-31 | Verfahren zur Herstellung von Harnstoff |
Country Status (25)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2617708B1 (en) * | 2012-01-17 | 2017-08-16 | General Electric Technology GmbH | A method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
| US9428449B2 (en) * | 2013-01-16 | 2016-08-30 | Alstom Technology Ltd | Method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT216006B (de) * | 1960-12-15 | 1961-07-10 | Stamicarbon | Verfahren zur Herstellung von Harnstoff |
| AT235305B (de) * | 1961-03-29 | 1964-08-25 | Montedison Spa | Verfahren zur Herstellung von Harnstoff |
| US3281464A (en) * | 1961-09-08 | 1966-10-25 | Lummus Co | Urea purification with recovery of ammonia and carbon dioxide |
| DE1468245A1 (de) * | 1962-02-28 | 1968-12-19 | Montedison Spa | Verfahren zur Rueckfuehrung von nicht umgesetztem Carbamat bei der Harnstoffsynthese aus Ammoniak und Kohlendioxyd |
| US3303215A (en) * | 1962-03-09 | 1967-02-07 | Toyo Koatsu Ind Inc | Synthesis of urea |
| NL290346A (enrdf_load_stackoverflow) * | 1962-03-22 | 1900-01-01 | ||
| AT244984B (de) * | 1962-03-22 | 1966-02-10 | Snam Spa | Verfahren zur Herstellung von Harnstoff aus Kohlendioxyd und Ammoniak |
| US3349126A (en) * | 1962-09-10 | 1967-10-24 | Pullman Inc | Integrated ammonia and urea process |
| NL127236C (enrdf_load_stackoverflow) * | 1964-05-29 | |||
| IL27267A (en) * | 1966-01-21 | 1970-10-30 | Montedison Spa | Process for the synthesis of urea from ammonia and carbon dioxide |
| NL148878B (nl) * | 1966-04-22 | 1976-03-15 | Stamicarbon | Werkwijze voor de continue bereiding van ureum. |
| NL144927C (nl) * | 1967-12-14 | 1980-10-15 | Snam Progetti | Werkwijze voor het continu bereiden van ureum. |
| NL153857B (nl) * | 1967-12-21 | 1977-07-15 | Stamicarbon | Werkwijze voor de bereiding van ureum in combinatie met de synthese van ammoniak. |
| NL159960C (nl) * | 1967-12-21 | 1979-09-17 | Stamicarbon | Werkwijze voor de bereiding van ureum in combinatie met de synthese van ammoniak. |
| JPS4832091B1 (enrdf_load_stackoverflow) * | 1968-02-12 | 1973-10-04 | ||
| BE758646A (fr) * | 1969-11-15 | 1971-04-16 | Snam Progetti | Procede de traitement des gaz de synthese de l'ammoniac |
-
1971
- 1971-07-20 PH PH12708A patent/PH12569A/en unknown
- 1971-07-22 GB GB3453971A patent/GB1359715A/en not_active Expired
- 1971-07-26 IE IE947/71A patent/IE35705B1/xx unknown
- 1971-07-28 CA CA119,361A patent/CA997369A/en not_active Expired
- 1971-07-28 RO RO7167829A patent/RO69642A/ro unknown
- 1971-07-29 YU YU1977/71A patent/YU35112B/xx unknown
- 1971-08-06 AU AU32091/71A patent/AU473454B2/en not_active Expired
- 1971-08-19 ZA ZA715560A patent/ZA715560B/xx unknown
- 1971-08-25 CS CS6089A patent/CS178090B2/cs unknown
- 1971-08-27 FR FR7131097A patent/FR2109719A5/fr not_active Expired
- 1971-08-30 ES ES395094A patent/ES395094A1/es not_active Expired
- 1971-08-31 BE BE771979A patent/BE771979A/xx not_active IP Right Cessation
- 1971-08-31 DE DE2143583A patent/DE2143583C3/de not_active Expired
- 1971-09-01 PL PL1971150295A patent/PL94001B1/pl unknown
- 1971-09-02 SE SE7111146A patent/SE409203B/sv unknown
- 1971-09-02 DK DK432371AA patent/DK138849B/da not_active IP Right Cessation
- 1971-09-02 TR TR17294A patent/TR17294A/xx unknown
- 1971-09-02 HU HU71SA00002336A patent/HU171341B/hu unknown
- 1971-09-02 LU LU63821D patent/LU63821A1/xx unknown
- 1971-09-03 AT AT771171A patent/AT332420B/de not_active IP Right Cessation
- 1971-09-03 CH CH1293871A patent/CH551953A/fr not_active IP Right Cessation
- 1971-09-03 JP JP7167538A patent/JPS5320013B1/ja active Pending
- 1971-09-03 NL NLAANVRAGE7112192,A patent/NL178250C/xx not_active IP Right Cessation
- 1971-09-03 NO NO3285/71A patent/NO139959C/no unknown
-
1977
- 1977-12-30 MY MY248/77A patent/MY7700248A/xx unknown
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8380 | Miscellaneous part iii |
Free format text: DER VERTRETER LAUTET RICHTIG: WUESTHOFF, F., DR.-ING. PECHMANN, E. FRHR. VON, DIPL.-CHEM. DR.RER.NAT BEHRENS, D., DR.-ING. GOETZ, R., DIPL.-ING. DIPL.-WIRTSCH.-ING., PAT.-ANW., 8000 MUENCHEN |
|
| 8381 | Inventor (new situation) |
Free format text: GUADALUPI, MARIO, DR. PAGANI, GIORGIO, DR., MILANO, IT ZARDI, UMBERTO, DR., SAN DONATO MILANESE, ITPARIS, IVO, DR., MELEGNANO, IT |
|
| 8339 | Ceased/non-payment of the annual fee |