GB1287710A - Process for increasing the corrosion resistance of austenitic stainless steels - Google Patents
Process for increasing the corrosion resistance of austenitic stainless steelsInfo
- Publication number
- GB1287710A GB1287710A GB26820/71A GB2682071A GB1287710A GB 1287710 A GB1287710 A GB 1287710A GB 26820/71 A GB26820/71 A GB 26820/71A GB 2682071 A GB2682071 A GB 2682071A GB 1287710 A GB1287710 A GB 1287710A
- Authority
- GB
- United Kingdom
- Prior art keywords
- increasing
- austenitic stainless
- april
- corrosion resistance
- stainless steels
- 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
- 238000000034 method Methods 0.000 title abstract 3
- 238000005260 corrosion Methods 0.000 title abstract 2
- 230000007797 corrosion Effects 0.000 title abstract 2
- 229910001220 stainless steel Inorganic materials 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 abstract 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 abstract 2
- 229910001882 dioxygen Inorganic materials 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
-
- 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
- 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
-
- 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
- C23C8/02—Pretreatment of the material to be coated
-
- 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)
- General Chemical & Material Sciences (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Chemical Treatment Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7004678.A NL164328C (nl) | 1970-04-02 | 1970-04-02 | 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. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1287710A true GB1287710A (en) | 1972-09-06 |
Family
ID=19809733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26820/71A Expired GB1287710A (en) | 1970-04-02 | 1971-04-19 | Process for increasing the corrosion resistance of austenitic stainless steels |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3720548A (enrdf_load_stackoverflow) |
| JP (1) | JPS515630B1 (enrdf_load_stackoverflow) |
| BE (1) | BE765197A (enrdf_load_stackoverflow) |
| CA (1) | CA949436A (enrdf_load_stackoverflow) |
| DE (1) | DE2116201A1 (enrdf_load_stackoverflow) |
| ES (1) | ES389762A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2085804B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1287710A (enrdf_load_stackoverflow) |
| NL (1) | NL164328C (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9890114B2 (en) | 2013-05-28 | 2018-02-13 | Toyo Engineering Corporation | Urea synthesis method |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2503763C3 (de) * | 1975-01-30 | 1978-03-16 | Uranit Uran-Isotopentrennungs- Gesellschaft Mbh, 5170 Juelich | Verfahren zur Bildung einer korrosionsverhütenden, oxidischen Schutzschicht auf korrosionsempfindlichen Stählen |
| DE3364579D1 (en) * | 1982-06-03 | 1986-08-28 | Montedison Spa | Method for avoiding the corrosion of strippers in urea manufacturing plants |
| CH691479A5 (de) | 1996-12-06 | 2001-07-31 | Siemens Ag | Oberflächenbehandlung von Stahl. |
| JP4112056B2 (ja) * | 1997-12-18 | 2008-07-02 | 東洋エンジニアリング株式会社 | 改良された尿素の合成方法および装置 |
| WO2003018861A1 (en) * | 2001-08-31 | 2003-03-06 | Dsm Ip Assets B.V. | Process for rendering metals corrosion resistant |
| GB0124846D0 (en) * | 2001-10-16 | 2001-12-05 | Unilever Plc | Corrosion protection process |
| ITMI20120013A1 (it) | 2012-01-09 | 2013-07-10 | Saipem Spa | Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2576680A (en) * | 1945-09-15 | 1951-11-27 | Electro Chimie Metal | Method for increasing the resistance to corrosion of stainless steel |
| US2680766A (en) * | 1951-03-23 | 1954-06-08 | Du Pont | Method of inhibiting corrosion in urea synthesis reactors |
| BE527914A (enrdf_load_stackoverflow) * | 1953-04-15 | |||
| US2890974A (en) * | 1957-12-02 | 1959-06-16 | Fairchild Engine & Airplane | Passivation of stainless steel alloys |
-
1970
- 1970-04-02 NL NL7004678.A patent/NL164328C/xx not_active IP Right Cessation
-
1971
- 1971-03-31 ES ES389762A patent/ES389762A1/es not_active Expired
- 1971-04-01 US US00130483A patent/US3720548A/en not_active Expired - Lifetime
- 1971-04-02 FR FR7111732A patent/FR2085804B1/fr not_active Expired
- 1971-04-02 DE DE19712116201 patent/DE2116201A1/de active Pending
- 1971-04-02 JP JP46020270A patent/JPS515630B1/ja active Pending
- 1971-04-02 CA CA109,447A patent/CA949436A/en not_active Expired
- 1971-04-02 BE BE765197A patent/BE765197A/xx not_active IP Right Cessation
- 1971-04-19 GB GB26820/71A patent/GB1287710A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9890114B2 (en) | 2013-05-28 | 2018-02-13 | Toyo Engineering Corporation | Urea synthesis method |
Also Published As
| Publication number | Publication date |
|---|---|
| CA949436A (en) | 1974-06-18 |
| NL164328B (nl) | 1980-07-15 |
| US3720548A (en) | 1973-03-13 |
| FR2085804B1 (enrdf_load_stackoverflow) | 1974-03-08 |
| JPS515630B1 (enrdf_load_stackoverflow) | 1976-02-21 |
| BE765197A (fr) | 1971-10-04 |
| ES389762A1 (es) | 1973-06-01 |
| NL7004678A (enrdf_load_stackoverflow) | 1971-10-05 |
| NL164328C (nl) | 1980-12-15 |
| DE2116201A1 (de) | 1971-11-04 |
| FR2085804A1 (enrdf_load_stackoverflow) | 1971-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |