GB401908A - Improvements in and relating to the production of protective coatings on iron and steel articles - Google Patents
Improvements in and relating to the production of protective coatings on iron and steel articlesInfo
- Publication number
- GB401908A GB401908A GB36848/32A GB3684832A GB401908A GB 401908 A GB401908 A GB 401908A GB 36848/32 A GB36848/32 A GB 36848/32A GB 3684832 A GB3684832 A GB 3684832A GB 401908 A GB401908 A GB 401908A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ferric
- acid
- iron
- oxalate
- salt
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 title abstract 2
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000010959 steel Substances 0.000 title abstract 2
- 239000011253 protective coating Substances 0.000 title 1
- 150000003839 salts Chemical class 0.000 abstract 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 3
- 238000000576 coating method Methods 0.000 abstract 3
- 239000000243 solution Substances 0.000 abstract 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract 1
- VEPSWGHMGZQCIN-UHFFFAOYSA-H ferric oxalate Chemical compound [Fe+3].[Fe+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O VEPSWGHMGZQCIN-UHFFFAOYSA-H 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000004922 lacquer Substances 0.000 abstract 1
- 229940039748 oxalate Drugs 0.000 abstract 1
- 235000006408 oxalic acid Nutrition 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 abstract 1
- 229960001860 salicylate Drugs 0.000 abstract 1
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 abstract 1
- 229940039790 sodium oxalate Drugs 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 229940095064 tartrate Drugs 0.000 abstract 1
- 239000002966 varnish Substances 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
- C23C22/06—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 acidic solutions with pH less than 6
- C23C22/46—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 acidic solutions with pH less than 6 containing oxalates
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
- Soft Magnetic Materials (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
A protective and electrically insulating coating is formed on iron or steel articles by treatment with an aqueous solution containing a ferric salt or a soluble ferri salt of an organic carboxylic acid, e.g. ferric oxalate, tartrate, or salicylate, or a soluble ferri-oxalate. The solution is preferably acidulated, for example with sulphuric, phosphoric, or oxalic acid, the amount of acid added being insufficient to produce evolution of hydrogen, and the coating may be effected by anodic treatment in the solution. The solution containing the ferric salt may be made by dissolving a ferric salt such as ferric sulphate and a substance containing the desired acid radical, e.g. sodium oxalate, in the presence of acid. The coating may be used as a base for paint, varnish, or lacquer, or as insulation in the manufacture of laminated cores for transformers, electromagnets, &c.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US591932A US1895569A (en) | 1932-02-09 | 1932-02-09 | Production of protective coatings on iron and steel articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB401908A true GB401908A (en) | 1933-11-23 |
Family
ID=24368563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36848/32A Expired GB401908A (en) | 1932-02-09 | 1932-12-30 | Improvements in and relating to the production of protective coatings on iron and steel articles |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1895569A (en) |
| BE (1) | BE393417A (en) |
| DE (1) | DE642191C (en) |
| FR (1) | FR748192A (en) |
| GB (1) | GB401908A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE434557A (en) * | 1938-05-27 | |||
| NL105857C (en) * | 1949-12-12 | |||
| DE916253C (en) * | 1949-12-12 | 1954-08-05 | Hoechst Ag | Process for the production of surface layers on iron and steel |
| US2712511A (en) * | 1950-03-03 | 1955-07-05 | Pennsylvania Salt Mfg Co | Method and composition for preparing ferrous metal for forming |
| BE506526A (en) * | 1950-10-19 | |||
| DE975008C (en) * | 1952-08-06 | 1961-08-03 | American Chem Paint Co | Process for the production of phosphate coatings on zinc and its alloys |
| US3042554A (en) * | 1959-12-29 | 1962-07-03 | Melvin H Swann | Process and composition for rustproofing ferrous stock |
| US3450577A (en) * | 1965-11-05 | 1969-06-17 | Hooker Chemical Corp | Composition and process for cleaning and coating metal surfaces |
| US5272039A (en) * | 1992-05-04 | 1993-12-21 | Eastman Kodak Company | Preparation of magnetic carrier particles |
-
0
- BE BE393417D patent/BE393417A/xx unknown
-
1932
- 1932-02-09 US US591932A patent/US1895569A/en not_active Expired - Lifetime
- 1932-12-29 FR FR748192D patent/FR748192A/en not_active Expired
- 1932-12-30 DE DEC47360D patent/DE642191C/en not_active Expired
- 1932-12-30 GB GB36848/32A patent/GB401908A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE642191C (en) | 1937-02-27 |
| FR748192A (en) | 1933-06-29 |
| US1895569A (en) | 1933-01-31 |
| BE393417A (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB401908A (en) | Improvements in and relating to the production of protective coatings on iron and steel articles | |
| GB717627A (en) | Improvements in or relating to electrically insulating coatings for magnetic sheet material containing iron | |
| GB381402A (en) | Improvements in or relating to the surface treatment of aluminium or aluminium alloys | |
| GB723945A (en) | An electrolytic process for smoothing and polishing surfaces of gold and gold alloys | |
| GB1022927A (en) | Improvements in and relating to coloring aluminium articles by electrolytic depositions of colored compounds | |
| GB398685A (en) | Improvements in and relating to the production of protective coatings on iron and steel articles | |
| GB600041A (en) | Improvements in and relating to the production of corrosion-resistant surfaces on copper and copper-alloy surfaces | |
| GB943169A (en) | Improvements relating to the phosphate-coating of metals | |
| GB633650A (en) | Improvements in or relating to the production of phosphate coatings on metals | |
| GB440215A (en) | An improved treatment for producing a modified surface on ferrous articles | |
| GB459263A (en) | Process for the anodic coating of aluminium and aluminium alloys and electrolytes therefor | |
| GB314769A (en) | An improved process for coating metals | |
| GB474977A (en) | Treatment of electrodeposited zinc coatings | |
| GB394211A (en) | Improvements in methods of and materials for coating zinc surfaces | |
| GB385582A (en) | Improvements in and relating to methods of coating metal with insulating varnishes | |
| GB1097356A (en) | Improvements in or relating to the anodising of aluminium or aluminium alloys | |
| GB794294A (en) | Process for the production of oxalate coatings on ferrous metals | |
| GB648888A (en) | Improvements in the production of phosphate coatings on metal surfaces | |
| GB446373A (en) | Process for the production of the borates of zinc, tin or copper | |
| GB684204A (en) | Process for the production of a surface layer on iron or steel | |
| GB663100A (en) | Improvements in or relating to the drawing of aluminium or aluminium alloys | |
| GB466569A (en) | Improvements in the manufacture and production of acetaldehyde from gases containing acetylene | |
| GB447524A (en) | Improved methods for regenerating phosphoric acid pickling baths | |
| GB506474A (en) | Improvements in the process of producing iron sheets for laminated electric transformer cores | |
| GB380882A (en) | Improvements in or relating to hardening alloy steels |