US612250A - Heinrich von der linde - Google Patents
Heinrich von der linde Download PDFInfo
- Publication number
- US612250A US612250A US612250DA US612250A US 612250 A US612250 A US 612250A US 612250D A US612250D A US 612250DA US 612250 A US612250 A US 612250A
- Authority
- US
- United States
- Prior art keywords
- iron
- plating
- von der
- metal
- der linde
- 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
- 240000007313 Tilia cordata Species 0.000 title description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 64
- 239000002184 metal Substances 0.000 description 46
- 229910052751 metal Inorganic materials 0.000 description 46
- 229910052742 iron Inorganic materials 0.000 description 32
- 238000007747 plating Methods 0.000 description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 22
- 238000000034 method Methods 0.000 description 18
- 150000002739 metals Chemical class 0.000 description 16
- PRKQVKDSMLBJBJ-UHFFFAOYSA-N Ammonium carbonate Chemical compound N.N.OC(O)=O PRKQVKDSMLBJBJ-UHFFFAOYSA-N 0.000 description 14
- 239000001099 ammonium carbonate Substances 0.000 description 14
- 235000012501 ammonium carbonate Nutrition 0.000 description 14
- 229910052759 nickel Inorganic materials 0.000 description 10
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 229910000881 Cu alloy Inorganic materials 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910000990 Ni alloy Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910000570 Cupronickel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000010310 metallurgical process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F5/00—Electrolytic stripping of metallic layers or coatings
Definitions
- the object of the present invention is a process for removing plating of a metal forming a soluble carbonate from articles made of iron, wherein only the metal forming the plating substance-such as nickel, copper, or alloys of copper and nickelare dissolved, while the iron is not affected.
- the process consists in employing the plated articles as anodes in a bath containing ammoniu n1 carbonate in solution and in employing as the cathode the same metal of which the plating is made.
- the plated articles are subjected to the actions of the electric, current, the metal separated from the anode is precipitated upon the cathode in metallic form where alloys of copper and nickel form the plating substance.
- ammonium carbonate under the action of the electric current serves as solvent of the metal forming the plating without afiecting the iron and that from the solvent the metal which is being dissolved is simultaneously precipitated. It is further a novel feature that ammonium carbonate is employed with the aid of the electric current in dissolving the solid and continuous metals embodied in manufactured articles.
- ammonium carbonate without the addition of ammonia under the action of the electric current is capable of dissolving solid compact metals forming continuous plating in such manner as to leave the iron unaffected and at the same time so cleaning it (which is not possible when ammonia is employed at the same time) that it maybe further treated in a metallurgical process, nor has there heretofore been a process known whereby plating consisting of nickel, copper, or alloy of copper and nickel could be removed from iron without dissolving the iron.
- I claim-- 1 A process for removing the plating from articles made of iron for the purpose of making the remaining iron capable of being used in the manufacture of steel consisting in subjecting articles of iron which are plated with a solid coating of a metal forming a soluble carbonate as nickel, and employed as anodes in a depositing-cell, to the action of an electric current in a bath of ammonium carbonate, whereby the metal forming the plating (See British Patent No. 19,934
Description
NITED STATES PATENT IFFICE.
HEINRICH VON DER LINDE, OF CREFELD, GERMANY.
SPECIFICATION forming part of Letters Patent No. 612,250, dated October 11, 1898 Application filed November 19, 1897. Serial No. 659,171. (No specimens.)
To aZZ whont itflncty concern:
Be it known that I, HEINRICH VON DER LINDE, a subject of the German Emperor, and a resident of Orefeld, in the Kingdom of Prussia and German Empire, haveinvented a certain new and useful Improved Process for the Electrolytic Separation of Metals, of which the following is a specification.
Heretofore the removal of plating from articles made of iron, so as to leave the iron unaffected and suitable for further use and mechanical working, has only been possible where the plating metal was tin. In such a case the removal of the tin-plating can be accomplished by electrolysis with the aid of a bath of soda-lye. In regard to other metals used for platingsuch as nickel, copper, or alloys of nickel and copperit has heretofore been impossible to employ an analogous process, as soda-lye is not applicable and there was no other means known whereby under the action of the electric current the plating metal could be dissolved without affecting theiron. In consequence the treatment of scraps or of used-up articles made of iron and plated with nickel has been such that the plating substance as well as the iron were dissolved and the more valuable plating metal was precipitated, while the remaining solution was used in the production of salts of iron, such as vitriol. However,-this procedure is not a very profitable one, as vitriol or similar substances are not as valuable as the metallic iron, which can be converted into steel or otherwise utilized.
The object of the present invention is a process for removing plating of a metal forming a soluble carbonate from articles made of iron, wherein only the metal forming the plating substance-such as nickel, copper, or alloys of copper and nickelare dissolved, while the iron is not affected.
The process consists in employing the plated articles as anodes in a bath containing ammoniu n1 carbonate in solution and in employing as the cathode the same metal of which the plating is made. When in this manner the plated articles are subjected to the actions of the electric, current, the metal separated from the anode is precipitated upon the cathode in metallic form where alloys of copper and nickel form the plating substance.
The essential feature of the above-described process is that the ammonium carbonate under the action of the electric current serves as solvent of the metal forming the plating without afiecting the iron and that from the solvent the metal which is being dissolved is simultaneously precipitated. It is further a novel feature that ammonium carbonate is employed with the aid of the electric current in dissolving the solid and continuous metals embodied in manufactured articles.
It has repeatedly been proposed to employ ammonium carbonate as solvent for oxids of different metals and for metals reduced from the ores but appearing in rawand non-compact condition. of 1895, United States Patent No. 272,391, and German Patent No. 29,900.) When these processes were employed, there were generally large quantities of oxids present. The ammonium carbonate mixed with ammonia was then used as the electrolyte and the metal was not compact and continuous, as in alloys, which are particularly difficult to affect. I-Ieretofore it has not been known that ammonium carbonate without the addition of ammonia under the action of the electric current is capable of dissolving solid compact metals forming continuous plating in such manner as to leave the iron unaffected and at the same time so cleaning it (which is not possible when ammonia is employed at the same time) that it maybe further treated in a metallurgical process, nor has there heretofore been a process known whereby plating consisting of nickel, copper, or alloy of copper and nickel could be removed from iron without dissolving the iron.
I claim-- 1. A process for removing the plating from articles made of iron for the purpose of making the remaining iron capable of being used in the manufacture of steel consisting in subjecting articles of iron which are plated with a solid coating of a metal forming a soluble carbonate as nickel, and employed as anodes in a depositing-cell, to the action of an electric current in a bath of ammonium carbonate, whereby the metal forming the plating (See British Patent No. 19,934
ILO
isdissolved and is precipitated upon the oathode While the iron remains unaffected.
2. The improvement in the art of removing a solid compact metal forming a soluble carbonate from another metal consisting in using in a depositing-cell a bath of ammonium carbonate, placing the combined metals to be separated in said cell as the anode, and with a suitable cathode, and passing a current through the cell sufficient to separate one of 10 said metals leaving the other metal undissolved.
Signed at Orefeld, Germany, this 5th day of November, 1897.
HEINRICH VON DER LINDE. Witnesses:
GEORGE GOMPERTZ, CHARLES JoNAs.
Publications (1)
Publication Number | Publication Date |
---|---|
US612250A true US612250A (en) | 1898-10-11 |
Family
ID=2680862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US612250D Expired - Lifetime US612250A (en) | Heinrich von der linde |
Country Status (1)
Country | Link |
---|---|
US (1) | US612250A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2588566A (en) * | 1948-02-04 | 1952-03-11 | Curtiss Wright Corp | Electrolytic process for stripping copper |
US20040001234A1 (en) * | 2002-07-01 | 2004-01-01 | Xerox Corporation | Digital de-screening of documents |
US20040010311A1 (en) * | 2002-07-15 | 2004-01-15 | Reynolds Lora B. | Customizable integrated prosthetic nipple and areola, processes for the manufacture thereof, and breast prostheses comprising same |
US20050042096A1 (en) * | 2001-12-10 | 2005-02-24 | Kenneth Hall | Thermally loaded component |
-
0
- US US612250D patent/US612250A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2588566A (en) * | 1948-02-04 | 1952-03-11 | Curtiss Wright Corp | Electrolytic process for stripping copper |
US20050042096A1 (en) * | 2001-12-10 | 2005-02-24 | Kenneth Hall | Thermally loaded component |
US20040001234A1 (en) * | 2002-07-01 | 2004-01-01 | Xerox Corporation | Digital de-screening of documents |
US20040010311A1 (en) * | 2002-07-15 | 2004-01-15 | Reynolds Lora B. | Customizable integrated prosthetic nipple and areola, processes for the manufacture thereof, and breast prostheses comprising same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2650403A2 (en) | Electrorecovery of gold and silver from thiosulphate solutions | |
US612250A (en) | Heinrich von der linde | |
US4368108A (en) | Process for electrolytic recovery of gallium or gallium and vanadium from alkaline liquors resulting from alumina production | |
US2766197A (en) | Production of manganese | |
US1996985A (en) | Process for parting residues, sweepings, and the like containing precious metals | |
US775597A (en) | Process of extracting gold from ores. | |
US2436244A (en) | Metalworking and strippingplating process | |
US641571A (en) | Process of producing solution of cyanogen halide. | |
US1887037A (en) | Process of refining nickel bearing materials | |
US1375631A (en) | Process of separating and refining metals | |
US733028A (en) | Electrolytically coating iron with zinc. | |
US2809929A (en) | Anode for copper plating | |
US883589A (en) | Electrolytic production of pure tin. | |
US1200025A (en) | Process of recovering metals. | |
US1067698A (en) | Method of electrolytically recovering nickel. | |
US1844937A (en) | Process of electrolytic copper refining | |
US709817A (en) | Electrolytically treating ores. | |
US656982A (en) | Electrolytically treating scrap-tin. | |
US514276A (en) | Pierre de p | |
RU2434065C1 (en) | Procedure for processing sulphide copper-nickel alloys | |
US710346A (en) | Electrometallurgic treatment of ores of copper or other metals. | |
US505846A (en) | ricketts | |
US923005A (en) | Process of treating nickel ores. | |
DE679931C (en) | Process for the removal of non-ferrous heavy metals from objects made of iron coated with them | |
US588076A (en) | Bernard mohr |