DE3514250A1 - Verfahren zur herstellung von harnstoff und dafuer geeignete vorrichtung - Google Patents
Verfahren zur herstellung von harnstoff und dafuer geeignete vorrichtungInfo
- Publication number
- DE3514250A1 DE3514250A1 DE19853514250 DE3514250A DE3514250A1 DE 3514250 A1 DE3514250 A1 DE 3514250A1 DE 19853514250 DE19853514250 DE 19853514250 DE 3514250 A DE3514250 A DE 3514250A DE 3514250 A1 DE3514250 A1 DE 3514250A1
- Authority
- DE
- Germany
- Prior art keywords
- tubes
- zirconium
- steel
- corrosion
- pipes
- 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.)
- Granted
Links
Classifications
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
- B01J19/2425—Tubular reactors in parallel
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/0204—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
- B01J2219/0236—Metal based
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
- B01J2219/0277—Metal based
- B01J2219/0286—Steel
-
- 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
- Y02P20/141—Feedstock
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8420635A IT1209532B (it) | 1984-04-20 | 1984-04-20 | Processo per la sintesi di urea e materiale utilizzato nello stesso. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3514250A1 true DE3514250A1 (de) | 1985-11-07 |
| DE3514250C2 DE3514250C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-12-22 |
Family
ID=11169848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853514250 Granted DE3514250A1 (de) | 1984-04-20 | 1985-04-19 | Verfahren zur herstellung von harnstoff und dafuer geeignete vorrichtung |
Country Status (22)
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2072966C1 (ru) * | 1990-03-12 | 1997-02-10 | Уриа Казале С.А. | Способ конденсации паров аммиака углекислого газа и воды, образующихся при обработке раствора, поступающего из реактора получения мочевины и устройство для его осуществления |
| DE9405062U1 (de) * | 1994-03-24 | 1994-05-26 | Hoval Interliz Ag, Vaduz-Neugut | Wärmetauscherrohr für Heizkessel |
| DE29515406U1 (de) * | 1995-09-20 | 1997-01-30 | Ruhr Oel GmbH, 45896 Gelsenkirchen | Rohrbündel-Wärmeübertrager |
| AT403735B (de) * | 1996-03-11 | 1998-05-25 | Vaillant Gmbh | Lamellenwärmetauscher |
| US6318094B1 (en) | 2000-08-11 | 2001-11-20 | Paul Mueller Company | Bimetallic tube in a heat exchanger of an ice making machine |
| ITMI20021009A1 (it) * | 2002-05-13 | 2003-11-13 | Snam Progetti | Apparecchiatura a fascio tubiero per processare fluidi corrosivi |
| EP1577632A1 (en) * | 2004-03-16 | 2005-09-21 | Urea Casale S.A. | Apparatus for treating highly corrosive agents |
| US7922065B2 (en) * | 2004-08-02 | 2011-04-12 | Ati Properties, Inc. | Corrosion resistant fluid conducting parts, methods of making corrosion resistant fluid conducting parts and equipment and parts replacement methods utilizing corrosion resistant fluid conducting parts |
| ITMI20061223A1 (it) * | 2006-06-26 | 2007-12-27 | Snam Progetti | Tubo bimetallico resistente alla corrosione e suo utilizzo in apparecchiature a fascio tubiwero |
| IT1391426B1 (it) | 2008-07-17 | 2011-12-23 | Snam Progetti | Apparecchiatura a fascio tubiero per processare fluidi corrosivi |
| EP2286909A1 (en) * | 2009-08-17 | 2011-02-23 | Stamicarbon B.V. | An apparatus for the decomposition of non-converted ammonium carbamate in urea solutions in a urea synthesis process |
| US10118259B1 (en) | 2012-12-11 | 2018-11-06 | Ati Properties Llc | Corrosion resistant bimetallic tube manufactured by a two-step process |
| EP2801396A1 (en) * | 2013-05-10 | 2014-11-12 | Casale Sa | Use of duplex stainless steel in an ammonia-stripping of urea plants |
| RU2675952C2 (ru) * | 2014-01-10 | 2018-12-25 | Эуротекника Меламине, Люксембург, Цвайгнидерлассунг ин Иттиген | Трубчатый теплообменник и установка, в частности реактор для производства меламина, содержащая такой теплообменник |
| WO2017003711A1 (en) * | 2015-06-30 | 2017-01-05 | Uop Llc | Heat exchangers for low temperature carbon dioxide separation from natural gas |
| EP3178535A1 (en) | 2015-12-11 | 2017-06-14 | Casale SA | A urea process with high-temperature stripping |
| ES2823164T3 (es) * | 2016-07-01 | 2021-05-06 | Sandvik Intellectual Property | Tubo bimetálico y procedimiento de fabricación de un tubo bimetálico |
| WO2019083367A1 (en) * | 2017-10-27 | 2019-05-02 | Stamicarbon B.V. | HIGH PRESSURE CARBAMATE CONDENSER |
| PL3502293T3 (pl) | 2017-12-22 | 2020-11-02 | Saipem S.P.A. | Zastosowania dupleksowych stali nierdzewnych |
| EP3513871A1 (en) * | 2018-01-17 | 2019-07-24 | Yara International ASA | Carbamate decomposer comprising flow distributor |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3041152A (en) * | 1957-02-21 | 1962-06-26 | Chemical Construction Corp | Apparatus for high temperature and pressure chemical reactions |
| NL293154A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1963-02-01 | 1900-01-01 | ||
| FR1356620A (fr) * | 1963-02-01 | 1964-03-27 | Chemical Processes Of Ohio | Procédé de synthèse de l'urée à partir d'ammoniac et de gaz carbonique et installation pour sa mise en oeuvre |
| US3515520A (en) * | 1967-02-13 | 1970-06-02 | Universal Oil Prod Co | Reactor with internal protective sleeve for corrosive systems |
| AT290545B (de) * | 1967-09-29 | 1971-06-11 | Snam Progetti | Verfahren zur Herstellung von Harnstoff mit niedrigem Carbamatgehalt |
| GB1292515A (en) * | 1969-04-04 | 1972-10-11 | Snam Progetti | Process for producing urea |
| EG10651A (en) * | 1970-04-02 | 1977-10-31 | Snam Progetti | Process for prevention reactors corrosion during production of urea |
| GB1327321A (en) * | 1971-05-25 | 1973-08-22 | Chemical Construction Corp | Process for urea synthesis |
| DE2153437B2 (de) * | 1971-10-27 | 1974-11-21 | Metallgesellschaft Ag, 6000 Frankfurt | Reaktor zur Herstellung von Methanol |
| US4210600A (en) * | 1976-10-28 | 1980-07-01 | Snamprogetti, S.P.A. | Method for the preparation of urea with a high-yield reactor |
| US4291104A (en) * | 1978-04-17 | 1981-09-22 | Fansteel Inc. | Brazed corrosion resistant lined equipment |
| IT1141030B (it) * | 1980-08-29 | 1986-10-01 | Snam Progetti | Procedimento per la produzione di urea |
-
1984
- 1984-04-20 IT IT8420635A patent/IT1209532B/it active
-
1985
- 1985-04-11 ZA ZA852725A patent/ZA852725B/xx unknown
- 1985-04-15 AU AU41241/85A patent/AU572284B2/en not_active Ceased
- 1985-04-16 MX MX204980A patent/MX160685A/es unknown
- 1985-04-16 SE SE8501859A patent/SE8501859L/ not_active Application Discontinuation
- 1985-04-17 IN IN293/MAS/85A patent/IN164410B/en unknown
- 1985-04-18 DK DK175985A patent/DK175985D0/da unknown
- 1985-04-19 ES ES543108A patent/ES543108A0/es active Granted
- 1985-04-19 GR GR850954A patent/GR850954B/el unknown
- 1985-04-19 NO NO851574A patent/NO163559C/no unknown
- 1985-04-19 LU LU85857A patent/LU85857A1/fr unknown
- 1985-04-19 SU SU853885101A patent/SU1731045A3/ru active
- 1985-04-19 GB GB08510103A patent/GB2157687B/en not_active Expired
- 1985-04-19 CA CA000479600A patent/CA1331993C/en not_active Expired - Lifetime
- 1985-04-19 BE BE0/214885A patent/BE902246A/fr not_active IP Right Cessation
- 1985-04-19 AR AR300153A patent/AR240914A1/es active
- 1985-04-19 JP JP60082702A patent/JPS60233047A/ja active Pending
- 1985-04-19 FR FR8505988A patent/FR2563217A1/fr active Pending
- 1985-04-19 DE DE19853514250 patent/DE3514250A1/de active Granted
- 1985-04-19 PT PT80322A patent/PT80322B/pt unknown
- 1985-04-19 NL NL8501151A patent/NL8501151A/nl not_active Application Discontinuation
-
1988
- 1988-03-22 US US07/173,032 patent/US4899813A/en not_active Expired - Lifetime
Non-Patent Citations (2)
| Title |
|---|
| Chemical Engineering, 13.05.1974, S.118-124 * |
| Chemical Engineering, 26.09.1960, S.96-98 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |