ATE146230T1 - Verfahren zum passivieren von metalloberflächen angegriffen durch betriebsbedingungen und korrosionsförderende medien - Google Patents
Verfahren zum passivieren von metalloberflächen angegriffen durch betriebsbedingungen und korrosionsförderende medienInfo
- Publication number
- ATE146230T1 ATE146230T1 AT92103043T AT92103043T ATE146230T1 AT E146230 T1 ATE146230 T1 AT E146230T1 AT 92103043 T AT92103043 T AT 92103043T AT 92103043 T AT92103043 T AT 92103043T AT E146230 T1 ATE146230 T1 AT E146230T1
- Authority
- AT
- Austria
- Prior art keywords
- passivation
- metal surfaces
- operating conditions
- corrosive media
- attacked
- Prior art date
Links
- 238000002161 passivation Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical group [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 238000001311 chemical methods and process Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/10—Oxidising
- C23C8/12—Oxidising using elemental oxygen or ozone
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/10—Oxidising
- C23C8/12—Oxidising using elemental oxygen or ozone
- C23C8/14—Oxidising of ferrous surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI910715A IT1251524B (it) | 1991-03-18 | 1991-03-18 | Metodo per la passivazione delle superfici metalliche interessate da condizioni e agenti promotori di corrosione |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE146230T1 true ATE146230T1 (de) | 1996-12-15 |
Family
ID=11359091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT92103043T ATE146230T1 (de) | 1991-03-18 | 1992-02-24 | Verfahren zum passivieren von metalloberflächen angegriffen durch betriebsbedingungen und korrosionsförderende medien |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5306355A (de) |
| EP (1) | EP0504621B1 (de) |
| CN (1) | CN1040463C (de) |
| AT (1) | ATE146230T1 (de) |
| CA (1) | CA2063344C (de) |
| DE (1) | DE69215721D1 (de) |
| IT (1) | IT1251524B (de) |
| RU (1) | RU2070230C1 (de) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4242967A1 (de) * | 1992-12-18 | 1994-06-23 | Messer Griesheim Gmbh | Verfahren zum Spülen und Rekonditionieren von Transfersystemen |
| JP2987754B2 (ja) * | 1996-01-17 | 1999-12-06 | 岩谷産業株式会社 | 高純度ガスの配管路での不動態化処理方法 |
| MXPA02012886A (es) * | 2000-06-22 | 2003-05-14 | United States Filter Corp | Control de la corrosion utilizando un donador de peroxido de hidrogeno. |
| US6716359B1 (en) | 2000-08-29 | 2004-04-06 | United States Filter Corporation | Enhanced time-based proportional control |
| NL1016121C2 (nl) * | 2000-09-07 | 2002-03-11 | Dsm Nv | Methode voor het corrosiebestendig maken van metalen. |
| US6620315B2 (en) | 2001-02-09 | 2003-09-16 | United States Filter Corporation | System for optimized control of multiple oxidizer feedstreams |
| US6776926B2 (en) * | 2001-08-09 | 2004-08-17 | United States Filter Corporation | Calcium hypochlorite of reduced reactivity |
| CN1545565A (zh) * | 2001-08-31 | 2004-11-10 | Dsm Ip财产有限公司 | 使金属耐腐蚀的方法 |
| US6991735B2 (en) | 2002-02-26 | 2006-01-31 | Usfilter Corporation | Free radical generator and method |
| US7108781B2 (en) | 2002-02-26 | 2006-09-19 | Usfilter Corporation | Enhanced air and water purification using continuous breakpoint halogenation with free oxygen radicals |
| US8652336B2 (en) | 2006-06-06 | 2014-02-18 | Siemens Water Technologies Llc | Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water |
| US12103874B2 (en) | 2006-06-06 | 2024-10-01 | Evoqua Water Technologies Llc | Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water |
| US10343939B2 (en) | 2006-06-06 | 2019-07-09 | Evoqua Water Technologies Llc | Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water |
| US8753522B2 (en) | 2007-04-03 | 2014-06-17 | Evoqua Water Technologies Llc | System for controlling introduction of a reducing agent to a liquid stream |
| US9365436B2 (en) | 2007-04-03 | 2016-06-14 | Evoqua Water Technologies Llc | Method of irradiating a liquid |
| US8741155B2 (en) | 2007-04-03 | 2014-06-03 | Evoqua Water Technologies Llc | Method and system for providing ultrapure water |
| US9725343B2 (en) | 2007-04-03 | 2017-08-08 | Evoqua Water Technologies Llc | System and method for measuring and treating a liquid stream |
| US20080245737A1 (en) * | 2007-04-03 | 2008-10-09 | Siemens Water Technologies Corp. | Method and system for providing ultrapure water |
| US9365435B2 (en) | 2007-04-03 | 2016-06-14 | Evoqua Water Technologies Llc | Actinic radiation reactor |
| US8961798B2 (en) | 2007-04-03 | 2015-02-24 | Evoqua Water Technologies Llc | Method for measuring a concentration of a compound in a liquid stream |
| EP2393910A4 (de) | 2009-02-09 | 2013-04-17 | Advanced Biocatalytics Corp | Reinigungszusammensetzungen und verfahren für angebrannte nahrungsmittel -und ölrückstände |
| US8591730B2 (en) | 2009-07-30 | 2013-11-26 | Siemens Pte. Ltd. | Baffle plates for an ultraviolet reactor |
| JP5774766B2 (ja) * | 2011-03-23 | 2015-09-09 | ニンシア オリエント タンタル インダストリー カンパニー、 リミテッド | タンタル金属の表面を不動態化させるための方法およびそのための装置 |
| EP2527301B1 (de) | 2011-05-26 | 2016-04-27 | Evoqua Water Technologies GmbH | Verfahren und Anordnung zur Wasserbehandlung |
| ITMI20120013A1 (it) | 2012-01-09 | 2013-07-10 | Saipem Spa | Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper |
| US10494281B2 (en) | 2015-01-21 | 2019-12-03 | Evoqua Water Technologies Llc | Advanced oxidation process for ex-situ groundwater remediation |
| US11161762B2 (en) | 2015-01-21 | 2021-11-02 | Evoqua Water Technologies Llc | Advanced oxidation process for ex-situ groundwater remediation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1027202A (fr) * | 1949-11-05 | 1953-05-08 | Procédé pour l'obtention de revêtements protecteurs de très liaute résistance | |
| EP0096151B1 (de) * | 1982-06-03 | 1986-07-23 | Montedison S.p.A. | Verfahren zur Verhinderung der Korrosion von Abstreifern in Anlagen zur Herstellung von Harnstoff |
| US5188714A (en) * | 1991-05-03 | 1993-02-23 | The Boc Group, Inc. | Stainless steel surface passivation treatment |
-
1991
- 1991-03-18 IT ITMI910715A patent/IT1251524B/it active IP Right Grant
-
1992
- 1992-02-24 DE DE69215721T patent/DE69215721D1/de not_active Expired - Lifetime
- 1992-02-24 EP EP92103043A patent/EP0504621B1/de not_active Expired - Lifetime
- 1992-02-24 AT AT92103043T patent/ATE146230T1/de not_active IP Right Cessation
- 1992-03-04 US US07/846,537 patent/US5306355A/en not_active Expired - Lifetime
- 1992-03-16 CN CN92101789A patent/CN1040463C/zh not_active Expired - Lifetime
- 1992-03-17 RU SU925011161A patent/RU2070230C1/ru active
- 1992-03-18 CA CA002063344A patent/CA2063344C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI910715A0 (it) | 1991-03-18 |
| CA2063344A1 (en) | 1992-09-19 |
| RU2070230C1 (ru) | 1996-12-10 |
| CA2063344C (en) | 2001-07-03 |
| CN1069293A (zh) | 1993-02-24 |
| EP0504621B1 (de) | 1996-12-11 |
| DE69215721D1 (de) | 1997-01-23 |
| ITMI910715A1 (it) | 1992-09-18 |
| EP0504621A1 (de) | 1992-09-23 |
| CN1040463C (zh) | 1998-10-28 |
| US5306355A (en) | 1994-04-26 |
| IT1251524B (it) | 1995-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |