US556092A - Oscar frolich - Google Patents
Oscar frolich Download PDFInfo
- Publication number
- US556092A US556092A US556092DA US556092A US 556092 A US556092 A US 556092A US 556092D A US556092D A US 556092DA US 556092 A US556092 A US 556092A
- Authority
- US
- United States
- Prior art keywords
- metals
- oscar
- noble
- tension
- frolich
- 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
- 241000501754 Astronotus ocellatus Species 0.000 title description 10
- 229910052751 metal Inorganic materials 0.000 description 30
- 239000002184 metal Substances 0.000 description 30
- 150000002739 metals Chemical class 0.000 description 28
- 229910000510 noble metal Inorganic materials 0.000 description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 14
- 235000011121 sodium hydroxide Nutrition 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 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
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 230000001419 dependent Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000010310 metallurgical process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/20—Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
Definitions
- OSCAR FROLIOI-I OF BERLIN, GERMANY, ASSIGNOR TO SIEMENS dz; HALSKE, OF SAME PLACE.
- This invention relates to the extraction of noble metals from ores, and has for its purpose to obtain those metals free from the other metals present in the ore. If the ore contains besides the noble metalssuch as gold, silver, or platina-ap onsiderable amount of other metals, the extracting process is usually carried out in the way that the latter are removed or remain in the residue, so as to obtain a solution of substantially the noble metals, as especially is the case in treating the ores with chlorine.
- the degree of electric tension to be applied is dependent upon different circumstances-- viz.,the acids the diiferent metals are combined with, the concentration of the solution, and the nature of the different metals. It is practically sufficient to state by experiments the limits of the electric tension for the lye which is obtained from the metallurgical process, so as to operate within these limits with the result of separating the noble metals. The limits of the electric tension, however, must be determined anew when from any cause the constitution of the lye gets altered.
- JOHN B JAoKsoN, OSCAR BIELEFELD.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Description
UNITED STATES PATENT OFFICE.
OSCAR FROLIOI-I, OF BERLIN, GERMANY, ASSIGNOR TO SIEMENS dz; HALSKE, OF SAME PLACE.
PROCESS OF EXTRACTING NOBLE METALS FROM ORES.
SPECIFICATION forming part of Letters Patent No. 556,092, dated March 10, 1896.
Application filed August 3,1895. Serial No. 558,134.
To aZZ whom it may concern:
Be it known that I, OSCAR FROLIOH, a citizen of the Swiss Republic, residing at Berlin,
in the German Empire, have invented certain new and useful Improvements in Processes of Extracting Noble Metals from Ores; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to the extraction of noble metals from ores, and has for its purpose to obtain those metals free from the other metals present in the ore. If the ore contains besides the noble metalssuch as gold, silver, or platina-ap onsiderable amount of other metals, the extracting process is usually carried out in the way that the latter are removed or remain in the residue, so as to obtain a solution of substantially the noble metals, as especially is the case in treating the ores with chlorine. The removing of the ignoble metals frequently is a difficult operation, but was considered necessary on account of the known methods not being capable of allowing the noble metals to be obtained from the final solution separately from other metals contained therein, so that a mixture would have resulted from which the noble metals were to be extracted by a separate process. It is, however, possible to extract by the aid of electrolysis the noble metals from a lye containing also other metals, it being only necessary to so control the tension of the current that the ignoble metals are allowed to remain dissolved, while the noble ones are caused to separate out with practically sufiicient speed. When a solution containing several metals is subjected to electrolysis and the tension of the current gradually increased, the metals will be caused to separate out in the order of the places they occupy in the tension seriesthat is to say, that metal which is most electronegative will be deposited first, then the next one in the series, and so on. Therefrom it results that the noble metals being of the highest electronegative order will first separate out, while the ignoble ones will not be deposited until the tension of the current has sufficiently increased. If, therefore, the electric tension is kept below that limit on which iguoble metals commence. separating out, the noble ones (N0 specimens.)
alone are deposited, and when the operation is continued for a sufficientlength of time all the amount of the latter will come out. It is obvious that by this way it is also possible to separate the noble metals from each other; but as for this purpose the electric tension would have to be altered within so narrow limits as to make it a rather troublesome operation, and as, on the other hand, it is de sired to obtain all the noble metals present, it will practically be sufficient to extract all of them in one operation.
The degree of electric tension to be applied is dependent upon different circumstances-- viz.,the acids the diiferent metals are combined with, the concentration of the solution, and the nature of the different metals. It is practically sufficient to state by experiments the limits of the electric tension for the lye which is obtained from the metallurgical process, so as to operate within these limits with the result of separating the noble metals. The limits of the electric tension, however, must be determined anew when from any cause the constitution of the lye gets altered. For instance, I mention that in operating on a lye which contains five grains each of chloride of gold, copper, and iron in one pint, and using alead cathode,a carbon anode and a current density of twelve amperes for each two square yards of cathode-surface, the limits of electric tension were between 1.2 and Let voltsviz., mere traces of copper and iron were precipitated within these limits, while gold separated completely and with sufficient speed.
What I claim is The process of extracting precious metals from a lye containing also inferior metals, said lye containing substantially five grains of each of the said metals to the pint, which consists in subjecting the said lye to the ac- 5 OSCAR FROLIOH. Witnesses:
JOHN B. JAoKsoN, OSCAR BIELEFELD.
Publications (1)
Publication Number | Publication Date |
---|---|
US556092A true US556092A (en) | 1896-03-10 |
Family
ID=2624829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US556092D Expired - Lifetime US556092A (en) | Oscar frolich |
Country Status (1)
Country | Link |
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US (1) | US556092A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3926752A (en) * | 1973-04-09 | 1975-12-16 | John C Loretto | Direct recovery of metals from sulphide ores by leaching and electrolysis |
US3956087A (en) * | 1974-05-17 | 1976-05-11 | Mineral Research & Development Corporation | Electrochemical mining of copper |
US3957601A (en) * | 1974-05-17 | 1976-05-18 | Mineral Research & Development Corporation | Electrochemical mining |
US3959096A (en) * | 1975-01-17 | 1976-05-25 | Langer Stanley H | Electrochemical recovery of copper from alloy scrap |
US3959092A (en) * | 1972-11-16 | 1976-05-25 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Method for a surface treatment of cemented carbide article |
US4026776A (en) * | 1970-12-02 | 1977-05-31 | Mitsui Mining & Smelting Co., Ltd. | Method for producing high purity lead |
US4071421A (en) * | 1976-08-11 | 1978-01-31 | Sherritt Gordon Mines Limited | Process for the recovery of zinc |
US4304646A (en) * | 1980-10-27 | 1981-12-08 | Enthone, Incorporated | Method for selective removal of copper contaminants from activator solutions containing palladium and tin |
US4381225A (en) * | 1979-04-09 | 1983-04-26 | Dextec Metallurgical Pty. Ltd. | Production of lead from ores and concentrates |
US4474654A (en) * | 1982-08-27 | 1984-10-02 | Outokumpu Oy | Method for removing arsenic from a sulphuric-acid solution |
US4557812A (en) * | 1983-08-10 | 1985-12-10 | National Research Development Corporation | Purifying mixed-cation electrolyte |
US4670116A (en) * | 1985-04-03 | 1987-06-02 | National Research Development Corporation | Purifying mixed-cation electrolyte |
-
0
- US US556092D patent/US556092A/en not_active Expired - Lifetime
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4026776A (en) * | 1970-12-02 | 1977-05-31 | Mitsui Mining & Smelting Co., Ltd. | Method for producing high purity lead |
US3959092A (en) * | 1972-11-16 | 1976-05-25 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Method for a surface treatment of cemented carbide article |
US3926752A (en) * | 1973-04-09 | 1975-12-16 | John C Loretto | Direct recovery of metals from sulphide ores by leaching and electrolysis |
US3956087A (en) * | 1974-05-17 | 1976-05-11 | Mineral Research & Development Corporation | Electrochemical mining of copper |
US3957601A (en) * | 1974-05-17 | 1976-05-18 | Mineral Research & Development Corporation | Electrochemical mining |
US3959096A (en) * | 1975-01-17 | 1976-05-25 | Langer Stanley H | Electrochemical recovery of copper from alloy scrap |
US4071421A (en) * | 1976-08-11 | 1978-01-31 | Sherritt Gordon Mines Limited | Process for the recovery of zinc |
US4381225A (en) * | 1979-04-09 | 1983-04-26 | Dextec Metallurgical Pty. Ltd. | Production of lead from ores and concentrates |
US4304646A (en) * | 1980-10-27 | 1981-12-08 | Enthone, Incorporated | Method for selective removal of copper contaminants from activator solutions containing palladium and tin |
US4474654A (en) * | 1982-08-27 | 1984-10-02 | Outokumpu Oy | Method for removing arsenic from a sulphuric-acid solution |
US4557812A (en) * | 1983-08-10 | 1985-12-10 | National Research Development Corporation | Purifying mixed-cation electrolyte |
US4670116A (en) * | 1985-04-03 | 1987-06-02 | National Research Development Corporation | Purifying mixed-cation electrolyte |
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