US2455411A - Process for the treatment of iron in order to obtain a clean metallic surface - Google Patents
Process for the treatment of iron in order to obtain a clean metallic surface Download PDFInfo
- Publication number
- US2455411A US2455411A US617439A US61743945A US2455411A US 2455411 A US2455411 A US 2455411A US 617439 A US617439 A US 617439A US 61743945 A US61743945 A US 61743945A US 2455411 A US2455411 A US 2455411A
- Authority
- US
- United States
- Prior art keywords
- iron
- treatment
- parts
- order
- metallic surface
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 36
- 229910052742 iron Inorganic materials 0.000 title description 18
- 238000011282 treatment Methods 0.000 title description 9
- 238000000034 method Methods 0.000 title description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000002253 acid Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 238000005246 galvanizing Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 235000011118 potassium hydroxide Nutrition 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 2
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 2
- 235000019797 dipotassium phosphate Nutrition 0.000 description 2
- 235000011167 hydrochloric acid Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229940105847 calamine Drugs 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910052864 hemimorphite Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- CPYIZQLXMGRKSW-UHFFFAOYSA-N zinc;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+3].[Fe+3].[Zn+2] CPYIZQLXMGRKSW-UHFFFAOYSA-N 0.000 description 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/085—Iron or steel solutions containing HNO3
-
- 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
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
Definitions
- the acid bath is to be composed of by weight 3 to 9 parts of nitric acid, 31 to 33 parts of muriatic acid, 10
- the latter could be composed, for example, by an aqueous solution containing 3 to 10% of caustic soda, 2 to 8% of caustic potash and 5 to 15% of ammonia salts.
- the iron piece After being neutralized for one or two minutes in an alkaline bath and washed, the iron piece can now be varnished, tinned, galvanized or galvanoplastlcally treated, etc., being understood that enamelling is included under the mention varnish.
- This condition could be prolonged indefinely by submitting the treated surface to the action oi a silicate solution varying from 2.5 to 12% of alkalinity at the temperature of to 1009 C.
- the time of immersion varies with the volume of the object, but must preferably be such that the object acquires in the bath a temperature of at least 50 0., thus allowing for immediate selfdrying, that is to say without requiring, for example, drying ovens.
- the surface of the iron thustreated will remain unaltered for an indefinite period. It will sufflce to wash it with warm water should it at any time require varnishing, tinning, galvanizing etc. If the varnish contains silica and its application requires thermical treatment, then washing in hot water can be suppressed.
- Sheet iron treated according to the process of the present invention is suitable for all manufacturing uses within the limits of the above de-v scription, but particularly for replacing tin plate in the manufacture of recipients for the cannin of food, in which case it would be suflicient to surface it with a varnish resisting food sterilizing treatment, each sheet iron until now unsuitable for this purpose being able to be treated without any dimculty in order to have all the necessary qualities.
- a process for the treatment of iron in order to obtain a clean metallic surface in which the iron to be treated is reacted for -5 to 30 minutes in an acid bath composed of by weight 3 to 9 parts of nitric acid, 31 to 33 parts of muriatic acid, 10 to 20 parts of sulphuric acid, 5 to 12 parts of hydrogen sulphide, 1 to 7 parts of sodium acetate and 2 to 9 parts of a compound from the group consisting of potassium hydrogen phosphate (Kai-IP04) and potassium ortho phosphate (KaPOr) for parts of water, is then withdrawn from said acid bath and immersed in an alkaline bath.
- Kai-IP04 potassium hydrogen phosphate
- KaPOr potassium ortho phosphate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (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)
- Application Of Or Painting With Fluid Materials (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH604379X | 1945-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2455411A true US2455411A (en) | 1948-12-07 |
Family
ID=4522941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US617439A Expired - Lifetime US2455411A (en) | 1945-02-23 | 1945-09-19 | Process for the treatment of iron in order to obtain a clean metallic surface |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2455411A (en)van) |
| BE (1) | BE460366A (en)van) |
| FR (1) | FR911200A (en)van) |
| GB (1) | GB604379A (en)van) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2873256A (en) * | 1955-05-05 | 1959-02-10 | Aris P Saris | Rust eradicator and method of using same |
| US3033710A (en) * | 1957-03-12 | 1962-05-08 | Branson Instr | Method of surface cleaning using ultrasonic energy |
| US4707191A (en) * | 1984-03-09 | 1987-11-17 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation (Snecma) | Pickling process for heat-resistant alloy articles |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818482A (en) * | 1987-07-09 | 1989-04-04 | Inco Alloys International, Inc. | Method for surface activation of water atomized powders |
| US4960459A (en) * | 1987-07-09 | 1990-10-02 | Inco Alloys International, Inc. | Method for surface activation of water atomized powders by pickling |
-
0
- BE BE460366D patent/BE460366A/xx unknown
-
1945
- 1945-06-01 FR FR911200D patent/FR911200A/fr not_active Expired
- 1945-09-19 US US617439A patent/US2455411A/en not_active Expired - Lifetime
- 1945-10-02 GB GB25562/45A patent/GB604379A/en not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| None * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2873256A (en) * | 1955-05-05 | 1959-02-10 | Aris P Saris | Rust eradicator and method of using same |
| US3033710A (en) * | 1957-03-12 | 1962-05-08 | Branson Instr | Method of surface cleaning using ultrasonic energy |
| US4707191A (en) * | 1984-03-09 | 1987-11-17 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation (Snecma) | Pickling process for heat-resistant alloy articles |
Also Published As
| Publication number | Publication date |
|---|---|
| BE460366A (en)van) | |
| GB604379A (en) | 1948-07-02 |
| FR911200A (fr) | 1946-07-01 |
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