CA2457200A1 - Procede permettant de rendre des metaux resitants a la corrosion - Google Patents
Procede permettant de rendre des metaux resitants a la corrosion Download PDFInfo
- Publication number
- CA2457200A1 CA2457200A1 CA002457200A CA2457200A CA2457200A1 CA 2457200 A1 CA2457200 A1 CA 2457200A1 CA 002457200 A CA002457200 A CA 002457200A CA 2457200 A CA2457200 A CA 2457200A CA 2457200 A1 CA2457200 A1 CA 2457200A1
- Authority
- CA
- Canada
- Prior art keywords
- urea
- process according
- maximum
- peroxide
- perborate
- 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.)
- Abandoned
Links
Classifications
-
- 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
- C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
L'invention concerne un procédé permettant de rendre des métaux résistants à la corrosion au moyen d'un traitement avec un agent anticorrosion, un acier duplex ferritique-austénitique présentant un contenu de chrome compris entre 28 et 35% en poids et un contenu de nickel compris entre 3 et 10% en poids étant utilisé, un oxydant étant mis en contact avec les parties métalliques, et l'air de passivation étant complètement ou partiellement omis.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/NL2001/000644 WO2003018861A1 (fr) | 2001-08-31 | 2001-08-31 | Procede permettant de rendre des metaux resitants a la corrosion |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2457200A1 true CA2457200A1 (fr) | 2003-03-06 |
Family
ID=19760765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002457200A Abandoned CA2457200A1 (fr) | 2001-08-31 | 2001-08-31 | Procede permettant de rendre des metaux resitants a la corrosion |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2005501178A (fr) |
CN (1) | CN1545565A (fr) |
CA (1) | CA2457200A1 (fr) |
WO (1) | WO2003018861A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1688511A1 (fr) * | 2005-02-02 | 2006-08-09 | DSM IP Assets B.V. | Procédé pour la production d'urée dans une usine conventionelle d'urée |
EP2107051A1 (fr) * | 2008-04-02 | 2009-10-07 | DSM IP Assets B.V. | Procédé pour augmenter la capacité d'une installation de production d'urée existante |
KR20110018455A (ko) * | 2008-07-23 | 2011-02-23 | 닛폰 스틸 앤드 스미킨 스테인레스 스틸 코포레이션 | 요소수 탱크용 페라이트계 스테인리스강 |
JP5018863B2 (ja) * | 2009-11-13 | 2012-09-05 | 住友金属工業株式会社 | 耐アルカリ性に優れた二相ステンレス鋼 |
FI125854B (fi) * | 2011-11-04 | 2016-03-15 | Outokumpu Oy | Dupleksi ruostumaton teräs |
WO2014192823A1 (fr) * | 2013-05-28 | 2014-12-04 | 東洋エンジニアリング株式会社 | Procédé de synthèse d'urée |
CN103451664A (zh) * | 2013-08-23 | 2013-12-18 | 苏州长盛机电有限公司 | 一种链条的钝化方法 |
CN106362570B (zh) * | 2016-08-27 | 2019-02-05 | 湖北宜化集团有限责任公司 | 一种三聚氰胺中含co2尾气的回收方法及装置 |
CN107904522A (zh) * | 2017-10-18 | 2018-04-13 | 江苏理工学院 | 一种高强度的双相不锈钢合金及其制备方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE527914A (fr) * | 1953-04-15 | |||
NL164328C (nl) * | 1970-04-02 | 1980-12-15 | Stamicarbon | Werkwijze voor het verhogen van de weerstand tegen cor- rosie van austenitische chroom-nikkelstalen, alsmede werkwijze voor de bereiding van ureum in apperatuur waarvan de weerstand tegen corrosie aldus is verhoogd. |
NL8304381A (nl) * | 1983-12-21 | 1985-07-16 | Stamicarbon | Werkwijze en inrichting voor het bereiden van melamine. |
IT1251524B (it) * | 1991-03-18 | 1995-05-16 | Vincenzo Lagana | Metodo per la passivazione delle superfici metalliche interessate da condizioni e agenti promotori di corrosione |
SE501321C2 (sv) * | 1993-06-21 | 1995-01-16 | Sandvik Ab | Ferrit-austenitiskt rostfritt stål samt användning av stålet |
-
2001
- 2001-08-31 JP JP2003523704A patent/JP2005501178A/ja not_active Withdrawn
- 2001-08-31 CA CA002457200A patent/CA2457200A1/fr not_active Abandoned
- 2001-08-31 CN CNA018235948A patent/CN1545565A/zh active Pending
- 2001-08-31 WO PCT/NL2001/000644 patent/WO2003018861A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN1545565A (zh) | 2004-11-10 |
JP2005501178A (ja) | 2005-01-13 |
WO2003018861A1 (fr) | 2003-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Discontinued |