US528156A - Process of removing enamel from metal - Google Patents
Process of removing enamel from metal Download PDFInfo
- Publication number
- US528156A US528156A US528156DA US528156A US 528156 A US528156 A US 528156A US 528156D A US528156D A US 528156DA US 528156 A US528156 A US 528156A
- Authority
- US
- United States
- Prior art keywords
- metal
- enamel
- removing enamel
- enameled
- 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
- 210000003298 Dental Enamel Anatomy 0.000 title description 16
- 238000000034 method Methods 0.000 title description 16
- 239000002184 metal Substances 0.000 title description 14
- 229910052751 metal Inorganic materials 0.000 title description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 239000003513 alkali Substances 0.000 description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000003518 caustics Substances 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229940072033 potash Drugs 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 235000015320 potassium carbonate Nutrition 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 235000008694 Humulus lupulus Nutrition 0.000 description 2
- 240000006600 Humulus lupulus Species 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000004534 enameling Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/263—Ethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D9/00—Chemical paint or ink removers
- C09D9/005—Chemical paint or ink removers containing organic solvents
Definitions
- the objectof. my invention is to remove enamels from metals.
- caustic soda or potash or a mixture of both, and melt the same, and while it is in a fused conditipn immerse the enameled articles therein.
- the caustic alkalies in a molten state com bine rapidly with the silica of the enamel, thereby causing its disintegration and loosening it from the metal to which it adheres. At the same time they do not attack the metal materially, but effectually, quickly and economically remove the enamel therefrom, leaving it in suitable condition for re-enameling.
- the bath becomes saturated with the silica of the enamel, thereby forming a silicate of soda or potash, of which commercial use may be made, and when this occurs the bath becomes inactive or weak and it must be renewed by a fresh supply of caustic alkali, either soda, potash or a mixture of the two.
Landscapes
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Edible Seaweed (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
UNITED STATES ATENT FFICE.
GEORGE W. GOETZ, MILWAUKEE, WISCONSIN.
PROCESS OF REMOVING ENAMEL FROM METAL.
$PECIFIGATION forming part of Letters Patent No. 528,156, dated October 30, 1894. Application filed February 23, 1894:. Serial No. 501,242. (No specimens.)
To all whom, it may concern:
Be it known that I, GEORGE W. (loans, of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Processes of Removing Enamel from Metal; and I do here by declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it pertains to make and use the same.
The objectof. my invention is to remove enamels from metals.
It consists of the process hereinafter described and pointed out in the claims.
In carrying out my process I take caustic soda or potash, or a mixture of both, and melt the same, and while it is in a fused conditipn immerse the enameled articles therein. The caustic alkalies in a molten state com bine rapidly with the silica of the enamel, thereby causing its disintegration and loosening it from the metal to which it adheres. At the same time they do not attack the metal materially, but effectually, quickly and economically remove the enamel therefrom, leaving it in suitable condition for re-enameling.
For the purpose of my process I may employ the ordinary crude alkalies of commerce which are inexpensive, and,when used in the manner specified, very efiective.
Theimpurities contained in the crudecaustic alkalies or the addition of other substances such as alkaline carbonates, while they are of no particular advantage, do not affect the proper and effective operation of the molten bath. After continued use the bath becomes saturated with the silica of the enamel, thereby forming a silicate of soda or potash, of which commercial use may be made, and when this occurs the bath becomes inactive or weak and it must be renewed by a fresh supply of caustic alkali, either soda, potash or a mixture of the two.
My process will be found of special advan tage in removing the enamel from improperly enameled or defective articles such as granite-ware and other enameled household utensils, as sinks and bath tubs.
. I prefer to use commercial caustic soda for the molten bath, inasmuch as it is equally effective and cheaper than the other substances mentioned.
I claim s--- 1. The process of removing mel from metal whichconsists in immersing the enameled article iua molten bath of caustic alkali, substantially as and for the purposes set forth.
2. The process of removing enamel from metal, which consists in immersing the enameled article in a molten bath of caustic soda, substantially as and for the purposes set forth.
In testimony that I claim the foregoing as my own I aflix my signature in presence of two witnesses. i
GEORGE W. GOETZ. \Vitnesses:
GHAs. L. Goss, E. B. HENIKA.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US528156A true US528156A (en) | 1894-10-30 |
Family
ID=2596944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US528156D Expired - Lifetime US528156A (en) | Process of removing enamel from metal |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US528156A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2458715A (en) * | 1944-08-25 | 1949-01-11 | Thompson Prod Inc | Method of preventing scaling |
-
0
- US US528156D patent/US528156A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2458715A (en) * | 1944-08-25 | 1949-01-11 | Thompson Prod Inc | Method of preventing scaling |
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