US2287050A - mummert - Google Patents
mummert Download PDFInfo
- Publication number
- US2287050A US2287050A US2287050DA US2287050A US 2287050 A US2287050 A US 2287050A US 2287050D A US2287050D A US 2287050DA US 2287050 A US2287050 A US 2287050A
- Authority
- US
- United States
- Prior art keywords
- per cent
- articles
- aqueous solution
- solution containing
- 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
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 28
- 239000007864 aqueous solution Substances 0.000 description 14
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 14
- 229910052749 magnesium Inorganic materials 0.000 description 14
- 239000011777 magnesium Substances 0.000 description 14
- 238000004140 cleaning Methods 0.000 description 12
- MUBZPKHOEPUJKR-UHFFFAOYSA-N oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 12
- 235000006408 oxalic acid Nutrition 0.000 description 8
- 235000002906 tartaric acid Nutrition 0.000 description 8
- FEWJPZIEWOKRBE-UHFFFAOYSA-N [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O Chemical class [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 235000015165 citric acid Nutrition 0.000 description 6
- 235000011090 malic acid Nutrition 0.000 description 6
- 150000007519 polyprotic acids Polymers 0.000 description 6
- BJEPYKJPYRNKOW-UHFFFAOYSA-N Malic acid Chemical compound OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 2
- FEWJPZIEWOKRBE-XIXRPRMCSA-N Mesotartaric acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-XIXRPRMCSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000001630 malic acid Substances 0.000 description 2
- 229940099690 malic acid Drugs 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000011975 tartaric acid Substances 0.000 description 2
- 229960001367 tartaric acid Drugs 0.000 description 2
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
- C23G1/12—Light metals
Definitions
- Example 10 A specimen of commercially pure magnesium taken from a rolled sheet of that metal was cleaned and left bright and shiny in 3 minutes by treatment at about room temperature in an aqueous solution containing per cent sulfuric acid, 0.5 per cent malic acid, and 0.5 per cent oxalic acid.
- the method of cleaning magnesium articles which comprises subjecting said articles to the action of an aqueous solution containing from about 1 to about per cent sulfuric acid and a total of from about'0.5 to about per cent of at least one aliphatic polybasic acid selected from the group consisting of oxalic, malic, citric, and tartaric acids. 7
- the method of cleaning magnesium articles which comprises subjecting said articles to the action of an aqueous solution containing from about 2 to about 6 per cent sulfuric acid, and a total of from about 3 to about 5 per cent of at least one aliphatic polybasic acid selected from tartaric acids.
- the method of treating wrought magnesium articles in order to remove lubricants and other impurities therefrom and to produce a bright shiny surface thereupon comprises subjecting said articles to the action of an v aqueous solution containing from about 1' to about 10 per cent sulfuric acid and a total of from about 0.5 to about 15 per cent of at least one aliphatic polybasic acid selected from the group consisting of oxalic, malic, citric, and tartaric acids.
- the method of cleaning magnesium articles and producing bright shiny surfaces thereupon which comprises subjecting said articles to the action of an aqueous solution containing from about 1 to about 10 per cent sulfuric acid and 0.5 to about 15 per cent oxalic acid.
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
removed, and the surfaces of the specimen left Example 10 A specimen of commercially pure magnesium taken from a rolled sheet of that metal was cleaned and left bright and shiny in 3 minutes by treatment at about room temperature in an aqueous solution containing per cent sulfuric acid, 0.5 per cent malic acid, and 0.5 per cent oxalic acid.
These examples are given to indicate the compositions and methods of operating the solutions used in the practice of my invention, and it will be understood that variations in its practice are possible within the scope of the appended claims.
I claim:
1. The method of cleaning magnesium articles which comprises subjecting said articles to the action of an aqueous solution containing from about 1 to about per cent sulfuric acid and a total of from about'0.5 to about per cent of at least one aliphatic polybasic acid selected from the group consisting of oxalic, malic, citric, and tartaric acids. 7
2. The method of cleaning magnesium articles which comprises subjecting said articles to the action of an aqueous solution containing from about 2 to about 6 per cent sulfuric acid, and a total of from about 3 to about 5 per cent of at least one aliphatic polybasic acid selected from tartaric acids.
3. The method of treating wrought magnesium articles in order to remove lubricants and other impurities therefrom and to produce a bright shiny surface thereupon, which method comprises subjecting said articles to the action of an v aqueous solution containing from about 1' to about 10 per cent sulfuric acid and a total of from about 0.5 to about 15 per cent of at least one aliphatic polybasic acid selected from the group consisting of oxalic, malic, citric, and tartaric acids.
4. The method of cleaning magnesium articles and producing bright shiny surfaces thereupon which comprises subjecting said articles to the action of an aqueous solution containing from about 1 to about 10 per cent sulfuric acid and 0.5 to about 15 per cent citric acid. I 5. The method of cleaning magnesium articles and producing bright shiny surfaces thereupon which comprises subjecting said articles to the action of an aqueous solution containing from about 1 to about 10 per cent sulfuric acid and 0.5 to about 15 per cent tartaric acid.
6. The method of cleaning magnesium articles and producing bright shiny surfaces thereupon which comprises subjecting said articles to the action of an aqueous solution containing from about 1 to about 10 per cent sulfuric acid and 0.5 to about 15 per cent oxalic acid.
MIKE A. MILLER.
the group consisting of oxalic, malic, citric, and Q June 23,1942. A. J. MUMMERf 2,287,051
PAcKI'Ne RING Filed Jan. 6, 1940 INVENTOH; HBO-6N1]. MUMMEHT HTTO NEY
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2287050A true US2287050A (en) | 1942-06-23 |
Family
ID=3432699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US2287050D Expired - Lifetime US2287050A (en) | mummert |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2287050A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2418955A (en) * | 1943-05-25 | 1947-04-15 | Aluminum Co Of America | Process of removing foreign matter from magnesium surfaces |
| US2640763A (en) * | 1951-02-12 | 1953-06-02 | Dow Chemical Co | Etching |
| US2710792A (en) * | 1953-03-30 | 1955-06-14 | Kelite Products Inc | Composition and process for treating aluminum and aluminum alloys preparatory to spot welding |
| US2982702A (en) * | 1950-05-09 | 1961-05-02 | Ralph F Wehrmann | Pretreating uranium for metal plating |
| US2994664A (en) * | 1958-02-19 | 1961-08-01 | Nalco Chemical Co | Dry acid cleaning compositions |
| US3031276A (en) * | 1958-06-27 | 1962-04-24 | Wyandotte Cehmicals Corp | Chemical milling of magnesium articles |
| US3100169A (en) * | 1960-01-04 | 1963-08-06 | Dow Chemical Co | Pickling of magnesium and magnesium-base alloy articles |
| US3100170A (en) * | 1960-01-04 | 1963-08-06 | Dow Chemical Co | Pickling magnesium articles |
| US3152083A (en) * | 1961-11-28 | 1964-10-06 | Dow Chemical Co | Powderless etching bath additive |
| US3216857A (en) * | 1962-05-21 | 1965-11-09 | Wyandotte Chemicals Corp | Process for removal of carbonaceous deposits |
| US3510432A (en) * | 1966-02-03 | 1970-05-05 | Albert T Squire | Noncorrosive rust remover |
| US3543389A (en) * | 1969-07-07 | 1970-12-01 | Bell Telephone Labor Inc | Method for cleaning metal surfaces |
-
0
- US US2287050D patent/US2287050A/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2418955A (en) * | 1943-05-25 | 1947-04-15 | Aluminum Co Of America | Process of removing foreign matter from magnesium surfaces |
| US2982702A (en) * | 1950-05-09 | 1961-05-02 | Ralph F Wehrmann | Pretreating uranium for metal plating |
| US2640763A (en) * | 1951-02-12 | 1953-06-02 | Dow Chemical Co | Etching |
| US2710792A (en) * | 1953-03-30 | 1955-06-14 | Kelite Products Inc | Composition and process for treating aluminum and aluminum alloys preparatory to spot welding |
| US2994664A (en) * | 1958-02-19 | 1961-08-01 | Nalco Chemical Co | Dry acid cleaning compositions |
| US3031276A (en) * | 1958-06-27 | 1962-04-24 | Wyandotte Cehmicals Corp | Chemical milling of magnesium articles |
| US3100169A (en) * | 1960-01-04 | 1963-08-06 | Dow Chemical Co | Pickling of magnesium and magnesium-base alloy articles |
| US3100170A (en) * | 1960-01-04 | 1963-08-06 | Dow Chemical Co | Pickling magnesium articles |
| US3152083A (en) * | 1961-11-28 | 1964-10-06 | Dow Chemical Co | Powderless etching bath additive |
| US3216857A (en) * | 1962-05-21 | 1965-11-09 | Wyandotte Chemicals Corp | Process for removal of carbonaceous deposits |
| US3510432A (en) * | 1966-02-03 | 1970-05-05 | Albert T Squire | Noncorrosive rust remover |
| US3543389A (en) * | 1969-07-07 | 1970-12-01 | Bell Telephone Labor Inc | Method for cleaning metal surfaces |
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