US1671627A - Cleaning and pickling of metals - Google Patents
Cleaning and pickling of metals Download PDFInfo
- Publication number
- US1671627A US1671627A US169672A US16967227A US1671627A US 1671627 A US1671627 A US 1671627A US 169672 A US169672 A US 169672A US 16967227 A US16967227 A US 16967227A US 1671627 A US1671627 A US 1671627A
- Authority
- US
- United States
- Prior art keywords
- pickling
- cleaning
- metals
- acid
- bath
- 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 13
- 238000004140 cleaning Methods 0.000 title description 12
- 239000002184 metal Substances 0.000 title description 12
- 229910052751 metal Inorganic materials 0.000 title description 12
- 150000002739 metals Chemical class 0.000 title description 6
- 239000002253 acid Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- OCVLSHAVSIYKLI-UHFFFAOYSA-N 3h-1,3-thiazole-2-thione Chemical compound SC1=NC=CS1 OCVLSHAVSIYKLI-UHFFFAOYSA-N 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- APVPOHHVBBYQAV-UHFFFAOYSA-N n-(4-aminophenyl)sulfonyloctadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NS(=O)(=O)C1=CC=C(N)C=C1 APVPOHHVBBYQAV-UHFFFAOYSA-N 0.000 description 1
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical compound [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 1
- 125000003396 thiol group Chemical class [H]S* 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
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
- C23G1/065—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors sulfur-containing compounds
Definitions
- Em oram invention relates tothe cleaning and i f pickling-ofmetals, and articularly to the pickling .ofriron or rstee to remove scale 7 therefrom, although the invention is of more .or less general application to the cleanin -or pickling of metals such as iron or stee i for the removal of oxides or scale therefrom.
- the pickling or cleaning of iron or steel is commonly effected by means of acid picklin or cleaning baths which remove the :sca e or oxide from the metal.
- the pickling "-baths commonly "employed are acid baths which often attack the metal-as wellas the scale.
- the amount of th for carrying outgthe el operation can ⁇ be varie i-Infgeneral vp r'c t qi lmfherea e Z a 31 18, 'forflgi mpl V quired, for 'example,- a;small naction of one *The resent invention provides” proved ath for pickling or cleaning metal -;.--?and also an improved process of pickling or cleaning the metal in which the acid pick-fig spling bath has incorporated therein asmall" -amount of inhibiting mercapto ,and particularly a amercapto thiazole.
- a are ski n theipr a vmna! f ponroaarron cor-saw am i i p-' time acid bathgother acid baths can hewused including a such apw thiaz le added t ,the bath ssma'll amount'of a suitable compoundJ-is re- 1.
- a non-oxidizing mineral acid bath for cleaning or pickling metals which comprises a small amount of a mercaptothiazole.
- a non-oxidizing mineral acid bath for 5 cleaning or pickling metals which comprises a small amount of a mercaptobenzothiazole.
- a bath for cleaning or pickling metals comprising sulfuric acid and a small amount of a thiazolc.
- a bath for cleaning or pickling iron or steel comprising sulfuric acid and a small amount of a mercaptothiazole.
- a bath for pickling or cleaning metals comprising sulfuric acid and a small amount of a mercaptobenzothiazole.
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)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US169672A US1671627A (en) | 1927-02-19 | 1927-02-19 | Cleaning and pickling of metals |
| FR654798D FR654798A (fr) | 1927-02-19 | 1928-05-24 | Perfectionnements au nettoyage et au décapage des métaux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US169672A US1671627A (en) | 1927-02-19 | 1927-02-19 | Cleaning and pickling of metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1671627A true US1671627A (en) | 1928-05-29 |
Family
ID=22616682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US169672A Expired - Lifetime US1671627A (en) | 1927-02-19 | 1927-02-19 | Cleaning and pickling of metals |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1671627A (fr) |
| FR (1) | FR654798A (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2547193A (en) * | 1949-04-13 | 1951-04-03 | Monsanto Chemicals | Pickling of metals |
| US3335085A (en) * | 1964-04-08 | 1967-08-08 | Calgon Corp | Inhibiting corrosion by acids |
-
1927
- 1927-02-19 US US169672A patent/US1671627A/en not_active Expired - Lifetime
-
1928
- 1928-05-24 FR FR654798D patent/FR654798A/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2547193A (en) * | 1949-04-13 | 1951-04-03 | Monsanto Chemicals | Pickling of metals |
| US3335085A (en) * | 1964-04-08 | 1967-08-08 | Calgon Corp | Inhibiting corrosion by acids |
Also Published As
| Publication number | Publication date |
|---|---|
| FR654798A (fr) | 1929-04-10 |
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