US1837118A - Pickling solution - Google Patents
Pickling solution Download PDFInfo
- Publication number
- US1837118A US1837118A US466343A US46634330A US1837118A US 1837118 A US1837118 A US 1837118A US 466343 A US466343 A US 466343A US 46634330 A US46634330 A US 46634330A US 1837118 A US1837118 A US 1837118A
- Authority
- US
- United States
- Prior art keywords
- per cent
- solution
- pickling solution
- steel
- acid
- 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
- 238000005554 pickling Methods 0.000 title description 9
- 239000000243 solution Substances 0.000 description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 3
- 235000011167 hydrochloric acid Nutrition 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- JYLNVJYYQQXNEK-UHFFFAOYSA-N 3-amino-2-(4-chlorophenyl)-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(CN)C1=CC=C(Cl)C=C1 JYLNVJYYQQXNEK-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 150000001879 copper Chemical class 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000006028 Sambucus nigra Species 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 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
- C23G1/081—Iron or steel solutions containing H2SO4
Definitions
- This invention relates to a pickling solution and, while not limited to the cleaning of any particular type of metal, is particularly adapted for cleaning what is commonly known in the art as stainless steel or alloy steels which have embodied therein chromium and nickel in suitable proportions to produce a steel which will resist corrosion.
- plckling solutions which have been used for cleaning the above type of metal may be mentioned hot sulfuric acid and water; muriatic acid of different concentrations and temperatures followed by dipping in a hot solution containing nitric acid; and a solution of caustic soda and sodium permanganate.
- the objection to the hot sulfuric acid solution is that it leaves the steel with ablack smut which apparently contains some chromium oxid as it rapidly cuts out the dies and spoils the finish.
- the muriatic acid solution followed by dipping in nitric acid causes surface pitting of the steel, especially cold rolled steel, resulting in a poor finish, and the caustic soda and sodium permanganate solution is open to the same objection.
- the object of the present invention is to provide a pickling solution which will clean the metal quickly and therefore economically and which, at the same time, will give a,
- A- pickling solution for stainless steel consisting of a 10 per cent. aqueous solution of sulfuric acid 10 per cent. by volume of 60 H SO plus 90 per cent. water) and 10 per cent. copper sulphate crystals 1 (CuSO.5H O).
- a pickling solution for stainless steel consisting of an aqueous solution of pickling acid and approximately 10 per cent. of solu- 60 H SO, plus 90 per cent. water) and apprloximately 10 per cent. of soluble copper sa ts.
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)
Description
I Patented Dec. 15, 1931 UNITED STATES PATENT OFFICE FLINT C. ELDER, OF CLEVELAND HEIGHTS, CLEVELAND, OHIO PICKLING SOLUTION R0 Drawing. Application filed. July 7,
This invention relates to a pickling solution and, while not limited to the cleaning of any particular type of metal, is particularly adapted for cleaning what is commonly known in the art as stainless steel or alloy steels which have embodied therein chromium and nickel in suitable proportions to produce a steel which will resist corrosion.
Among the plckling solutions which have been used for cleaning the above type of metal may be mentioned hot sulfuric acid and water; muriatic acid of different concentrations and temperatures followed by dipping in a hot solution containing nitric acid; and a solution of caustic soda and sodium permanganate.
The objection to the hot sulfuric acid solution is that it leaves the steel with ablack smut which apparently contains some chromium oxid as it rapidly cuts out the dies and spoils the finish. The muriatic acid solution followed by dipping in nitric acid causes surface pitting of the steel, especially cold rolled steel, resulting in a poor finish, and the caustic soda and sodium permanganate solution is open to the same objection.
The object of the present invention is to provide a pickling solution which will clean the metal quickly and therefore economically and which, at the same time, will give a,
bright, smooth surface to the cleaned steel. It has been found that this result may be obtained by adding a certain percentage of soluble copper salt to an acid solution. In cleaning alloy steels containin 18 per cent chromium and 8 per cent. nic el, a 10 per cent. aqueous solution of sulfuric acid (10 per cent. by volumne of H SO, plus 90 per cent. water) containing 10 per cent. copper sulphate crystals (CuSO '5H O) used at a range of temperature from 160 degrees to 200 degrees Fahrenheit or slightly higher, has been found to produce satisfactory results. Copper chloride in a muriatic acid solution will produce satisfactory results as will copper chloride in a sulfuric acid solution.
The action of the solution on stainless steel is quite active but soon ceases, due to precipi- 1930. Serial No. 466,343.
face from further action but which can be easily wiped or brushed off in water. With the above formula a strip of annealed cold rolled steel can be cleaned in approximately ten seconds, leaving a smooth, shiny surface free from pitting.
I claim:
1. A- pickling solution for stainless steel consisting of a 10 per cent. aqueous solution of sulfuric acid 10 per cent. by volume of 60 H SO plus 90 per cent. water) and 10 per cent. copper sulphate crystals 1 (CuSO.5H O). 2. A pickling solution for stainless steel consisting of an aqueous solution of pickling acid and approximately 10 per cent. of solu- 60 H SO, plus 90 per cent. water) and apprloximately 10 per cent. of soluble copper sa ts.
5. The process of cleaning stainless steel which consists in dipping the steel in an acid pickling solution containing approximately 10 percent. of soluble copper salts brought to a temperature of 160 degrees Fahrenheit or higher.
6. The process of cleaning stainless steel i which consists in dipping the steel in a sulfuric acid pickling solution containing approximatelylO per cent. of copper sulphate and brought to a temperature of 160 degrees Fahrenheit or higher.
In testimony whereof, I have hereunto set my hand.
FLINT C. ELDER.
CFOSS HGTBI'BHCB Examiner
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US466343A US1837118A (en) | 1930-07-07 | 1930-07-07 | Pickling solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US466343A US1837118A (en) | 1930-07-07 | 1930-07-07 | Pickling solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1837118A true US1837118A (en) | 1931-12-15 |
Family
ID=23851392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US466343A Expired - Lifetime US1837118A (en) | 1930-07-07 | 1930-07-07 | Pickling solution |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1837118A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2472786A (en) * | 1943-08-21 | 1949-06-14 | Sylvania Electric Prod | Method of pickling metal contact surfaces |
| US2842435A (en) * | 1955-12-01 | 1958-07-08 | Western Electric Co | Methods of stripping tin and tin alloy surface coatings from iron and iron alloy articles |
| US2887373A (en) * | 1948-07-09 | 1959-05-19 | Harry W Winkler | Method of cleaning metal surfaces |
| US3507795A (en) * | 1966-12-09 | 1970-04-21 | Amchem Prod | Composition for removal of copper and copper oxide scales from boilers |
| EP0013328A1 (en) * | 1978-11-30 | 1980-07-23 | Ian Ballantyne Schafer | Method for treatment of a metal surface |
| US4666625A (en) * | 1984-11-27 | 1987-05-19 | The Drackett Company | Method of cleaning clogged drains |
-
1930
- 1930-07-07 US US466343A patent/US1837118A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2472786A (en) * | 1943-08-21 | 1949-06-14 | Sylvania Electric Prod | Method of pickling metal contact surfaces |
| US2887373A (en) * | 1948-07-09 | 1959-05-19 | Harry W Winkler | Method of cleaning metal surfaces |
| US2842435A (en) * | 1955-12-01 | 1958-07-08 | Western Electric Co | Methods of stripping tin and tin alloy surface coatings from iron and iron alloy articles |
| US3507795A (en) * | 1966-12-09 | 1970-04-21 | Amchem Prod | Composition for removal of copper and copper oxide scales from boilers |
| EP0013328A1 (en) * | 1978-11-30 | 1980-07-23 | Ian Ballantyne Schafer | Method for treatment of a metal surface |
| US4666625A (en) * | 1984-11-27 | 1987-05-19 | The Drackett Company | Method of cleaning clogged drains |
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