US128026A - Improvement in the processes of treating ores of copper - Google Patents
Improvement in the processes of treating ores of copper Download PDFInfo
- Publication number
- US128026A US128026A US128026DA US128026A US 128026 A US128026 A US 128026A US 128026D A US128026D A US 128026DA US 128026 A US128026 A US 128026A
- Authority
- US
- United States
- Prior art keywords
- copper
- iron
- state
- antimony
- arsenic
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title description 34
- 229910052802 copper Inorganic materials 0.000 title description 34
- 239000010949 copper Substances 0.000 title description 34
- 238000000034 method Methods 0.000 title description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 60
- 229910052742 iron Inorganic materials 0.000 description 30
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 26
- 229910052787 antimony Inorganic materials 0.000 description 26
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 24
- 229910052785 arsenic Inorganic materials 0.000 description 24
- 235000011167 hydrochloric acid Nutrition 0.000 description 18
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 18
- 229910052709 silver Inorganic materials 0.000 description 18
- 239000004332 silver Substances 0.000 description 18
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 12
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 12
- 229910052737 gold Inorganic materials 0.000 description 12
- 239000010931 gold Substances 0.000 description 12
- 239000011133 lead Substances 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 10
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 241001124569 Lycaenidae Species 0.000 description 6
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 235000014987 copper Nutrition 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 235000011149 sulphuric acid Nutrition 0.000 description 6
- GOLCXWYRSKYTSP-UHFFFAOYSA-N Arsenious Acid Chemical compound O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 150000002978 peroxides Chemical class 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- RCJVRSBWZCNNQT-UHFFFAOYSA-N Dichlorine monoxide Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- GNVXPFBEZCSHQZ-UHFFFAOYSA-N iron(2+);sulfide Chemical compound [S-2].[Fe+2] GNVXPFBEZCSHQZ-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- -1 silver and lead Chemical class 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N sulfonic acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0002—Preliminary treatment
Definitions
- This dissolvent- which has for its object to rapidly dissolve the sulphurets and oxysulphurets, and all other copper ores, roasted or not-is a mixture of persulphate' of iron and chlorhydric acid, or, what amounts to the same, a bath of persulphate of iron, through which passes a continuous current of gaseous chlorhydric acid.
- the iron, copper, antimony, and arsenic rapidly and entirely dissolve in this compound.
- the iron, copper, and antimony dissolved first to a state of chloride, finally return, in yielding their chlorhydric acid, to the state of sulphates, while the arsenic remains in solution in a state of chloride.
- the other metals, such as silver and lead are attacked first by the chlorhydric acid, and finally precipitated in an insoluble state in the form of sulphates.
- the gold, unattacked, follows them into the residuum insoluble. This residuum, separate from the liquid part, is first roasted and afterward reduced, in the presence of lead, in the cupel.
- the liquid bath containing the sulphates of iron, copper, and antimony, and the chloride of arsenic in solution, is evaporated to-dryness. During the concentration of the bath a part of the chloride of arsenic volatilizes, while the other part remains in the liquor.
- the protosulphuret of iron remaining is treated, in either a moist or hard state, by the oxygen of the air, or by a mingling of air, chlorine, or nitrous vapors, which brings it to a state of persulphate.
- the peroxide of hydrated iron remain ing insoluble from this operation is separated by decantation and setaside.
- the chlorhydric acid displaced by the sulphuric acid is replaced by persulphate of iron, which serves the same purpose as the persulphate in the other operation.
Description
UNITE STATES PATENT OFFICE.
OYPRIEN MARIE TESSIE DU MOTAY, OF PARIS, FRANCE, AND 'WILHELM HILLEGEIRT, OF OLAUSTHAL, HANOVER.
IMPROVEMENT IN THE PROCESSES 0F TREATING ORES OF COPPER. 82c.
Specification forming part of Letters Patent No. 128,026, dated June 18, 1872.
To all whom it may concern.-
Be it known that we, OYPRIEN MARIE TES- SIE DU MOTAY, of Paris, in the Republic of France, and WILHELM HILLEGEIRT, of Clausthal, Hanover, have invented a new process of treating ores of copper, carbonates, oxides, and double or multiple sulphurets, and also mats and black coppers containing or not gold, silver, lead, antimony, and arsenic; and we do hereby declare the following to be a full, clear, and exact description of the same.
It is well known that sulphuric and chlorhydric acids employed singly or together dissolve but little or not at all the sulphurets and the double oxysulphurets of copper and iron containing or not containing gold, silver, lead, antimony, and arsenic.
It has been impossible heretofore to successfully treat these ores in a crude or roasted state either by sulphuric or chlorhydric acid, or by a mixture of these two acids. The solutions of persulphate of iron used alone, cold or warm, to dissolve these ores act very slowly, and for this reason they cannot be successfully employed to melt the copper contained in the complex pyrites containing this metal alone or mixed with gold, silver, lead, antimony, and arsenic.
We have discovered a new dissolvent--positive and economical-0f the ores of copper, carbonates, oxides, and double or multiple sulphurets, and also mats and black coppers containin g or not containing gold, silver, lead, antimony, and arsenic.
This dissolvent-which has for its object to rapidly dissolve the sulphurets and oxysulphurets, and all other copper ores, roasted or not-is a mixture of persulphate' of iron and chlorhydric acid, or, what amounts to the same, a bath of persulphate of iron, through which passes a continuous current of gaseous chlorhydric acid.
The iron, copper, antimony, and arsenic rapidly and entirely dissolve in this compound. The iron, copper, and antimony, dissolved first to a state of chloride, finally return, in yielding their chlorhydric acid, to the state of sulphates, while the arsenic remains in solution in a state of chloride. The other metals, such as silver and lead, are attacked first by the chlorhydric acid, and finally precipitated in an insoluble state in the form of sulphates. The gold, unattacked, follows them into the residuum insoluble. This residuum, separate from the liquid part, is first roasted and afterward reduced, in the presence of lead, in the cupel. The liquid bath, containing the sulphates of iron, copper, and antimony, and the chloride of arsenic in solution, is evaporated to-dryness. During the concentration of the bath a part of the chloride of arsenic volatilizes, while the other part remains in the liquor.
The salts, after evaporation, are recovered by the water 5 the sulphate of antimony is precipitated to the state of subsulphate ,Of antimony, nearly insoluble and the chloride of arsenic remaining passes to the state of arsenious acid, likewise not soluble; while only the copper and iron remain dissolved in the liquor.
When, during the evaporation, all the chlorhydric acid has not been expelled, and only the antimony and arsenic are left in a chloride state in the liquor, similar reactions to those before described occur-that is to say, the chlorides of arsenic and antimony recovered by the water after evaporation pass away, the first in a state of arsenious acid, and the second in a state of oxychloride, insoluble. The double sulphates of copper and iron remaining in solution are treated by means of metallic iron, which precipitates the copper by the process of cementation. The protosulphuret of iron remaining is treated, in either a moist or hard state, by the oxygen of the air, or by a mingling of air, chlorine, or nitrous vapors, which brings it to a state of persulphate. The peroxide of hydrated iron remain ing insoluble from this operation is separated by decantation and setaside. Subsequently treated, and dissolved by sulphurous-acid liquid in connection with air, it produces sulphate of peroxide of iron, which serves to replace the quantity of sulphate lost in the preceding operations. In this manner the chlorhydric acid displaced by the sulphuric acid is replaced by persulphate of iron, which serves the same purpose as the persulphate in the other operation.
It sometimes occurs that in the double liquid of sulphate of copper and iron a small portion of sulphate of silver remains insoluble. To
precipitate to a metallic state the silver contained in this sulphate we cause the reaction of plates of copper or lead, which adhere to the silver, and which we add to the residuum insoluble before being treated in the cupel.
We claim as our invention- 1. The mingling of persulphate of iron and chlorhydric acid, which constitute fa new and positive dissolvent of the ores of copper, 'carbonates, oxides, and double or multiple sulphurets, likewise mats and black coppers containing or not containing gold, silver, lead, antimony, and arsenic.
2. The reactions above described for obtaining in an insoluble state salts and precious metals contained in copper ores treated by our dissolvent.
3. The separation of the copper in a pure state and the removal of the antimony and Witnesses J. ARIVLENGAUD, GILBERT VILLENEUVE.
Publications (1)
Publication Number | Publication Date |
---|---|
US128026A true US128026A (en) | 1872-06-18 |
Family
ID=2197445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US128026D Expired - Lifetime US128026A (en) | Improvement in the processes of treating ores of copper |
Country Status (1)
Country | Link |
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US (1) | US128026A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8150441B2 (en) | 2006-11-06 | 2012-04-03 | Magnolia Broadband Inc. | Modifying a signal by controlling transmit diversity parameters |
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0
- US US128026D patent/US128026A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8150441B2 (en) | 2006-11-06 | 2012-04-03 | Magnolia Broadband Inc. | Modifying a signal by controlling transmit diversity parameters |
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