US2172041A - Pickling solution - Google Patents
Pickling solution Download PDFInfo
- Publication number
- US2172041A US2172041A US167859A US16785937A US2172041A US 2172041 A US2172041 A US 2172041A US 167859 A US167859 A US 167859A US 16785937 A US16785937 A US 16785937A US 2172041 A US2172041 A US 2172041A
- Authority
- US
- United States
- Prior art keywords
- acid
- pickling solution
- solution
- pickling
- scale
- 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 10
- 239000002253 acid Substances 0.000 description 9
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 3
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 3
- 229910000669 Chrome steel Inorganic materials 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QLOKJRIVRGCVIM-UHFFFAOYSA-N 1-[(4-methylsulfanylphenyl)methyl]piperazine Chemical compound C1=CC(SC)=CC=C1CN1CCNCC1 QLOKJRIVRGCVIM-UHFFFAOYSA-N 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000887108 Dicoma Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 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
- C23G1/086—Iron or steel solutions containing HF
Definitions
- a satisfactory pickling solution for most cases contains from 5 to 20 per cent by volume of a suitable oxidizing agent, such as chromic acid, potassium chromate, potassium dic oma r potassium permanganate, mixed with from of 1 per centtgjp peg ceptbyyolume of hyg c acid and with s u lphur ic acid 5 in armpits up tiS'TiYfier cent by volume, the remaining percentage of the solution, of course, being water.
- a suitable oxidizing agent such as chromic acid, potassium chromate, potassium dic oma r potassium permanganate
- the pickling solution would then contain from 10 to 20 per cent by 10 volume of chromic acid, and from 1 to 10 per cent by volume of hydrofluoric acid and up to 10 per cent by volume of sulphuric acid mixed with water.
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
UNITED STATES 1&
PATENT OFFICE PICKLING SOLUTION Stephen F. Urban, Chicago, 11!.
No Drawing. Application October 7, 1937, Serial No. 167,859
1 Claim. (01. ilk-a) This invention relates tmniflklinwlutions and, particularly, to such a solution for pickling chro- 5 In the course of manufacture of chromium steel alloy or chromium-nickel steel alloy articles, sheets, etc., a scale is formed on the surface thereof. This scale has to be removed for various reasons before such articles can be used commercially. As is generally known, it is the usual practice to re movelhemcalg by immersing the articles in a pickling solutiomafte'i me final annealing operation: -It s an object of this invention to provide a l pickling solution which will remove this scale n'from such metals without pit 'ng gqr ip dj ng otherwise da theof.
It has been found that annealed chrome steels m r,w or hsutnia a ra d I mtQ gr without sficl'i afiditiois as titanium?) columbiuni'fi'f nicwmeamfifaanmesmmny pickled to remove the scale in a pickling solution containing h drofl acid nixeg with an 931;- dizin lrea enii such as'chro'micf'acid, o'tgssi'um 2 chmrnmata'ifigaig gmnawlii potassium g per aiig'a'iiatefandfwfihii'without sglphugg acid. Such a pickling solution has been found esp cially satisfactory for use in connection with chrome steels or alloys thereof containing more than 12 'per cent of chromium, with or without nickel, and with or without such additions as titanium, coluhibifimmrmmyb'defiumfmse seminar may be used either hot or cold, and their composition may be varied to satisfy the individual case for which they are adapted to be used.
It has been found that a satisfactory pickling solution for most cases contains from 5 to 20 per cent by volume of a suitable oxidizing agent, such as chromic acid, potassium chromate, potassium dic oma r potassium permanganate, mixed with from of 1 per centtgjp peg ceptbyyolume of hyg c acid and with s u lphur ic acid 5 in armpits up tiS'TiYfier cent by volume, the remaining percentage of the solution, of course, being water. For example, if chromic acid is used as the oxidizing reagent, the pickling solution would then contain from 10 to 20 per cent by 10 volume of chromic acid, and from 1 to 10 per cent by volume of hydrofluoric acid and up to 10 per cent by volume of sulphuric acid mixed with water. The percentages of the amount of acid used,
of course, depends upon the type of scale on the 1 article to be pickled. It will be understood, of a course, that the acid concentration of the solution continuously decreases during the pickling operation, thereby decreasing the relative initial amounts of the ingredients of the acids used; 20 therefore the concentration of the solution has to be increased by replenishing acid from time to time.
STEPHEN F. URBAN.
Such a solution will effectively and efliciently
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US167859A US2172041A (en) | 1937-10-07 | 1937-10-07 | Pickling solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US167859A US2172041A (en) | 1937-10-07 | 1937-10-07 | Pickling solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2172041A true US2172041A (en) | 1939-09-05 |
Family
ID=22609123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US167859A Expired - Lifetime US2172041A (en) | 1937-10-07 | 1937-10-07 | Pickling solution |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2172041A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2428749A (en) * | 1944-08-19 | 1947-10-07 | Dow Chemical Co | Surface treatment of magnesium alloys |
| US2981643A (en) * | 1958-02-19 | 1961-04-25 | Russell D Baybarz | Process for descaling and decontaminating metals |
| US3025190A (en) * | 1958-02-27 | 1962-03-13 | Internat Groom Company G M B H | Method of, and compositions for use in, cleansing the interior surfaces of tanks and the like |
| US3108919A (en) * | 1959-06-17 | 1963-10-29 | North American Aviation Inc | Etching process |
| DE1217739B (en) * | 1961-09-27 | 1966-05-26 | Dow Chemical Co | Welding point cleaning on stainless steel |
| US3367799A (en) * | 1963-10-08 | 1968-02-06 | Army Usa | Process for cleaning aluminum |
| US3523825A (en) * | 1967-04-07 | 1970-08-11 | Chem Cleaning & Equipment Serv | Cleaning composition and method of using same |
| US4297148A (en) * | 1979-04-17 | 1981-10-27 | Panagiotis Zervopoulos | Masonry cleaning process and composition |
| EP1013800A3 (en) * | 1998-12-22 | 2000-11-15 | Andritz-Patentverwaltungs-Gesellschaft m.b.H. | Process for pickling stainless steel |
-
1937
- 1937-10-07 US US167859A patent/US2172041A/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2428749A (en) * | 1944-08-19 | 1947-10-07 | Dow Chemical Co | Surface treatment of magnesium alloys |
| US2981643A (en) * | 1958-02-19 | 1961-04-25 | Russell D Baybarz | Process for descaling and decontaminating metals |
| US3025190A (en) * | 1958-02-27 | 1962-03-13 | Internat Groom Company G M B H | Method of, and compositions for use in, cleansing the interior surfaces of tanks and the like |
| US3108919A (en) * | 1959-06-17 | 1963-10-29 | North American Aviation Inc | Etching process |
| DE1217739B (en) * | 1961-09-27 | 1966-05-26 | Dow Chemical Co | Welding point cleaning on stainless steel |
| US3367799A (en) * | 1963-10-08 | 1968-02-06 | Army Usa | Process for cleaning aluminum |
| US3523825A (en) * | 1967-04-07 | 1970-08-11 | Chem Cleaning & Equipment Serv | Cleaning composition and method of using same |
| US4297148A (en) * | 1979-04-17 | 1981-10-27 | Panagiotis Zervopoulos | Masonry cleaning process and composition |
| EP1013800A3 (en) * | 1998-12-22 | 2000-11-15 | Andritz-Patentverwaltungs-Gesellschaft m.b.H. | Process for pickling stainless steel |
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