ATA507479A - Verfahren zur behandlung von harnstoffloesungen - Google Patents
Verfahren zur behandlung von harnstoffloesungenInfo
- Publication number
- ATA507479A ATA507479A AT0507479A AT507479A ATA507479A AT A507479 A ATA507479 A AT A507479A AT 0507479 A AT0507479 A AT 0507479A AT 507479 A AT507479 A AT 507479A AT A507479 A ATA507479 A AT A507479A
- Authority
- AT
- Austria
- Prior art keywords
- stage
- carbamate
- soln
- synthesis reactor
- flow
- Prior art date
Links
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 title abstract 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 3
- 230000015572 biosynthetic process Effects 0.000 title abstract 3
- 239000004202 carbamide Substances 0.000 title abstract 3
- 238000003786 synthesis reaction Methods 0.000 title abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title 2
- 229910021529 ammonia Inorganic materials 0.000 title 1
- 238000007669 thermal treatment Methods 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000000155 melt Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
- B01J10/005—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out at high temperatures in the presence of a molten material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
- B01J3/044—Pressure vessels, e.g. autoclaves in the form of a loop
-
- 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)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT26010/78A IT1174366B (it) | 1978-07-24 | 1978-07-24 | Decompositore di carbammato per produzione industriale di urea |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA507479A true ATA507479A (de) | 1984-02-15 |
| AT375916B AT375916B (de) | 1984-09-25 |
Family
ID=11218402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT0507479A AT375916B (de) | 1978-07-24 | 1979-07-23 | Verfahren zur behandlung von harnstoffloesungen |
Country Status (13)
| Country | Link |
|---|---|
| US (2) | US4269997A (de) |
| JP (1) | JPS60339B2 (de) |
| AT (1) | AT375916B (de) |
| CA (1) | CA1127663A (de) |
| DE (1) | DE2929998A1 (de) |
| ES (1) | ES482756A1 (de) |
| FR (1) | FR2434145A1 (de) |
| GB (2) | GB2028311B (de) |
| IN (1) | IN151776B (de) |
| IT (1) | IT1174366B (de) |
| MX (1) | MX151584A (de) |
| NL (1) | NL7905726A (de) |
| SU (1) | SU1085506A3 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746954A (en) * | 1980-09-05 | 1982-03-17 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| NL8102391A (nl) * | 1981-05-15 | 1982-12-01 | Unie Van Kunstmestfab Bv | Werkwijze voor het winnen van waardevolle bestanddelen uit de afvalstromen verkregen bij de ureumbereiding. |
| IT1211125B (it) * | 1981-10-16 | 1989-09-29 | Ortu Francesco | Composti azotati. processo per la preparazione di |
| DE3364579D1 (en) * | 1982-06-03 | 1986-08-28 | Montedison Spa | Method for avoiding the corrosion of strippers in urea manufacturing plants |
| US4597946A (en) * | 1985-04-30 | 1986-07-01 | Uop Inc. | Vertical tube reactor with serial downward flow through a plurality of sets of particulate containing tubes |
| US4788108A (en) * | 1987-06-15 | 1988-11-29 | Ppg Industries, Inc. | Ultraviolet light curable compositions based on iminated unsaturated polyesters for application to porous substrates |
| CH679485A5 (de) * | 1989-12-29 | 1992-02-28 | Ammonia Casale Sa | |
| CA2141886E (en) * | 1994-05-11 | 1999-10-12 | Federico Zardi | Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature |
| IL115063A0 (en) * | 1994-09-09 | 1995-12-08 | Urea Casale Sa | Method for in-situ modernization of a urea synthesis reactor |
| CA2168993C (en) * | 1995-10-27 | 2007-01-02 | Giorgio Pagani | Hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution |
| DE69722606T2 (de) * | 1997-06-26 | 2004-04-29 | Urea Casale S.A. | Verfahren zur Verminderung der Emissionen von freiem Restammoniak aus einer Ureumproduktionsanlage |
| EP3219703A1 (de) * | 2016-03-17 | 2017-09-20 | Casale SA | Kombinierte vorrichtung für die synthese von harnstoff |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2345424A (en) * | 1942-04-28 | 1944-03-28 | Alfred G Pfeifer | Combination gauge |
| DE1042570B (de) * | 1953-10-23 | 1958-11-06 | Toyo Koatsu Ind Inc | Verfahren zur Wiedergewinnung und Wiederverwendung von nicht umgesetztem Ammoniak und Kohlendioxyd bei der mit ueber-schuessigem Ammoniak ausgefuehrten Harnstoffsynthese |
| NL101446C (de) * | 1960-04-08 | |||
| NL145541B (nl) * | 1964-02-17 | 1975-04-15 | Allied Chem | Werkwijze voor het ontleden van ammoniumcarbamaat. |
| IL23001A (en) * | 1964-02-17 | 1968-09-26 | Allied Chem | Method for decomposing ammonium carbamates |
| US3984469A (en) * | 1969-10-16 | 1976-10-05 | Snam Progetti S.P.A. | Process for the production of urea |
| US3779711A (en) * | 1971-07-19 | 1973-12-18 | V Gryaznov | Catalytic reactor designed for carrying out conjugate chemical reactions |
| NL172058C (nl) * | 1972-06-12 | 1983-07-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL172539C (nl) * | 1972-06-12 | 1983-09-16 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| US4036878A (en) * | 1972-06-12 | 1977-07-19 | Unie Van Kunstmestfabrieken, B.V. | Process for preparing urea |
| JPS5040529A (de) * | 1973-04-09 | 1975-04-14 | ||
| JPS514971A (ja) * | 1974-06-10 | 1976-01-16 | Hitachi Ltd | Handotaisochihifukuyogarasu |
| FR2359083A1 (fr) * | 1976-07-23 | 1978-02-17 | Saint Gobain | Perfectionnement a la fabrication de verre plat |
| US4097544A (en) * | 1977-04-25 | 1978-06-27 | Standard Oil Company | System for steam-cracking hydrocarbons and transfer-line exchanger therefor |
| BG35038A3 (en) * | 1977-05-05 | 1984-01-16 | Montedison Spa | Method and installation for synthesis of urea |
| US4230669A (en) * | 1978-07-17 | 1980-10-28 | Pullman Incorporated | Radial ammonia converter |
-
1978
- 1978-07-24 IT IT26010/78A patent/IT1174366B/it active
-
1979
- 1979-06-13 IN IN612/CAL/79A patent/IN151776B/en unknown
- 1979-07-11 FR FR7917991A patent/FR2434145A1/fr active Granted
- 1979-07-11 US US06/056,551 patent/US4269997A/en not_active Expired - Lifetime
- 1979-07-13 GB GB7924454A patent/GB2028311B/en not_active Expired
- 1979-07-19 CA CA332,195A patent/CA1127663A/en not_active Expired
- 1979-07-23 JP JP54092702A patent/JPS60339B2/ja not_active Expired
- 1979-07-23 AT AT0507479A patent/AT375916B/de not_active IP Right Cessation
- 1979-07-23 ES ES482756A patent/ES482756A1/es not_active Expired
- 1979-07-23 SU SU792789506A patent/SU1085506A3/ru active
- 1979-07-24 DE DE19792929998 patent/DE2929998A1/de not_active Ceased
- 1979-07-24 NL NL7905726A patent/NL7905726A/nl not_active Application Discontinuation
- 1979-07-24 MX MX178606A patent/MX151584A/es unknown
-
1980
- 1980-11-26 US US06/210,384 patent/US4308234A/en not_active Expired - Lifetime
-
1982
- 1982-03-09 GB GB08206854A patent/GB2109257B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4269997A (en) | 1981-05-26 |
| SU1085506A3 (ru) | 1984-04-07 |
| JPS60339B2 (ja) | 1985-01-07 |
| IN151776B (de) | 1983-07-30 |
| IT7826010A0 (it) | 1978-07-24 |
| US4308234A (en) | 1981-12-29 |
| DE2929998A1 (de) | 1980-02-07 |
| ES482756A1 (es) | 1980-04-16 |
| JPS5522674A (en) | 1980-02-18 |
| NL7905726A (nl) | 1980-01-28 |
| GB2109257A (en) | 1983-06-02 |
| IT1174366B (it) | 1987-07-01 |
| AT375916B (de) | 1984-09-25 |
| MX151584A (es) | 1984-12-21 |
| GB2028311B (en) | 1983-02-09 |
| GB2109257B (en) | 1983-09-28 |
| CA1127663A (en) | 1982-07-13 |
| FR2434145B1 (de) | 1984-11-30 |
| FR2434145A1 (fr) | 1980-03-21 |
| GB2028311A (en) | 1980-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |