US555463A - Arthtjr - Google Patents
Arthtjr Download PDFInfo
- Publication number
- US555463A US555463A US555463DA US555463A US 555463 A US555463 A US 555463A US 555463D A US555463D A US 555463DA US 555463 A US555463 A US 555463A
- Authority
- US
- United States
- Prior art keywords
- cyanide
- sulfur
- ore
- soluble
- solution
- 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
- XFXPMWWXUTWYJX-UHFFFAOYSA-N cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 22
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 22
- 239000011593 sulfur Substances 0.000 description 22
- 229910052717 sulfur Inorganic materials 0.000 description 22
- 150000003839 salts Chemical class 0.000 description 18
- 239000011780 sodium chloride Substances 0.000 description 18
- 150000001875 compounds Chemical class 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- 150000003568 thioethers Chemical class 0.000 description 14
- 239000010970 precious metal Substances 0.000 description 10
- 238000009877 rendering Methods 0.000 description 10
- 229940072033 potash Drugs 0.000 description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 8
- 235000015320 potassium carbonate Nutrition 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 8
- 230000001376 precipitating Effects 0.000 description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- NNFCIKHAZHQZJG-UHFFFAOYSA-N Potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 2
- MNWBNISUBARLIT-UHFFFAOYSA-N Sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- 239000005018 casein Substances 0.000 description 2
- 235000021240 caseins Nutrition 0.000 description 2
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- ZFDKGDQUCMGMEO-UHFFFAOYSA-N mercury;hydrate Chemical compound O.[Hg].[Hg] ZFDKGDQUCMGMEO-UHFFFAOYSA-N 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
- 150000002825 nitriles Chemical class 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium 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
- C22B11/00—Obtaining noble metals
- C22B11/08—Obtaining noble metals by cyaniding
Definitions
- Our said invention relates to what is known as the MacArthur-Forrest Process for extracting gold and silver from ores and the like by means of cyanides, and has for its object to increase the eificiency and economy of that process in cases in which, from the nature of the ores treated or other circumstances, it is found that in the solution of cyanide, as heretofore used, there is formed or becomes present a sulfide soluble therein which retards and objectionably affects the action of the cyanide on the precious metals.
- the particular sulfide which may become present depends upon the base of the cyanide used. Thus if cyanide of potassium is used, sulfide of potassium may be formed. If cyanide of sodium is used, sulphide of sodium may be formed.
- the reaction whichoccurs may be represented as follows:
- V Potash Our invention consists in removing or rendering inert such soluble sulfide by adding to the solution of cyanide or to the ore or to the mixture of ore and cyanide solution a suitable salt or compound of a metal which decomposes the soluble sulfide and unites with the sulfur thereof, forming a sulphide which is practically insoluble or inert in the cyanide solution, or which will materially diminish the objectionable action.
- salts or compounds of lead such as plumbates, carbonate, acetate, or sulfate of lead-or salts or compounds of other metals such as sulfate or chloride of manganese, zincates, oxide, or chloride of mercury, and ferric hydrate or oxide.
- the proportion of salt or compound to be used in any case will depend on the proportion of soluble sulfide which has to be dealt with in the cyanide solution applied to the particular ore, and the salt or compound will ordinarily be sufficient to unite with and render insoluble the sulfur of the soluble sulfides or so much thereof as would seriously impair the efficiency of the process if left in a soluble state. This quantity is easily and most conveniently ascertained by trials of a few small samples in each casein a manner which will be readily understood by those skilled in the art.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
UNITED STATES PATENT JFFICE.
V JOHN S. MACARTHUR AND CHARLES J. ELLIS, OF GLASGOYV,
SCOTLAND.
PROCESS OF EXTRACTING GOLD AND SILVER FROM ORES.
Application filed September 25, 1893. Serial No. 486,462.
To all whom it may concern:
Be it known that we, J OHN STEWART MAC- ARTHUR and CHARLES JAMES ELLIS, subjects of the Queen of Great Britain, residing at 157 West George Street, Glasgow, in the county of Lanark, Scotland, have invented certain new and useful Improvements in Extracting Gold and Silver from Ores and the Like, (for which We have obtained a British patent, No. 5,218, dated March 10, 1893,) of which the following is a specification.
Our said invention relates to what is known as the MacArthur-Forrest Process for extracting gold and silver from ores and the like by means of cyanides, and has for its object to increase the eificiency and economy of that process in cases in which, from the nature of the ores treated or other circumstances, it is found that in the solution of cyanide, as heretofore used, there is formed or becomes present a sulfide soluble therein which retards and objectionably affects the action of the cyanide on the precious metals.
The particular sulfide which may become present depends upon the base of the cyanide used. Thus if cyanide of potassium is used, sulfide of potassium may be formed. If cyanide of sodium is used, sulphide of sodium may be formed. The reaction whichoccurs may be represented as follows:
Lead Potash plumbatei Lead sul;.hiu'e. Potash Sulphur" Potash sulphide g Potash.
V Potash Our invention consists in removing or rendering inert such soluble sulfide by adding to the solution of cyanide or to the ore or to the mixture of ore and cyanide solution a suitable salt or compound of a metal which decomposes the soluble sulfide and unites with the sulfur thereof, forming a sulphide which is practically insoluble or inert in the cyanide solution, or which will materially diminish the objectionable action.
In carrying out our invention we may use any one or more of various metallic salts or compounds, of which the following may be dated February 25, 1896.
(No specimens.) Patented in England March 10, 1893,1T0. 5,218.
mentioned by way of example, preference being given to them in the order in which they are notednamely, salts or compounds of lead, such as plumbates, carbonate, acetate, or sulfate of lead-or salts or compounds of other metalssuch as sulfate or chloride of manganese, zincates, oxide, or chloride of mercury, and ferric hydrate or oxide.
The proportion of salt or compound to be used in any case will depend on the proportion of soluble sulfide which has to be dealt with in the cyanide solution applied to the particular ore, and the salt or compound will ordinarily be sufficient to unite with and render insoluble the sulfur of the soluble sulfides or so much thereof as would seriously impair the efficiency of the process if left in a soluble state. This quantity is easily and most conveniently ascertained by trials of a few small samples in each casein a manner which will be readily understood by those skilled in the art.
In the case of some ores containing sulfur we find that the addition of salts or compounds as and for the purpose hereinbefore referred to, and especially those of lead and mercury, increases the percentage of precious metals obtained.
We claim- 1. The process of separating precious metal from auriferous or argentiferous ore containing-sulfur, which consists in subjecting the ore to the action of a cyanide solution, and.
precipitating by means of a metallic salt capable of combining with sulfur, any sulfur which may become soluble in the solution and thereby rendering it inert.
2. The process of separating precious metal from auriferous or argentiferous ore containing sulfur, which consists in subjecting the ore to the action of a cyanide solution and precipitating by means of a metallic compound capable of combining with sulfur, any sulfur which may become soluble in the solution and thereby rendering it inert.
3. The process of separating precious metal from auriferous or argentiferous ore containing copper, which consists in subjecting the ore to the action of a cyanide solution, and
precipitating by means of a salt of lead, any any sulfur which may become soluble in the copper which niaybecome soluble in the soiusolution, thereby rendering it inert. tion, and thereby rendering it inert.
i. The process of separating precionsmetal JOHN S. MACARTIIUR. 5 from auriferons or argentiferons ore containing sulfur, which consists in subjecting the Vitnesses: ore to the action of a cyanide solution and GEO. A. ANDERSONE, precipitating by means of a compound of lead \VM. NEILL.
CHAS. J. ELLIS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US555463A true US555463A (en) | 1896-02-25 |
Family
ID=2624200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US555463D Expired - Lifetime US555463A (en) | Arthtjr |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US555463A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3033675A (en) * | 1958-11-03 | 1962-05-08 | American Cyanamid Co | Increasing precious metal recovery in cyanidation |
| US3311468A (en) * | 1963-12-26 | 1967-03-28 | Davidoff Charles | Silver recovery process |
-
0
- US US555463D patent/US555463A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3033675A (en) * | 1958-11-03 | 1962-05-08 | American Cyanamid Co | Increasing precious metal recovery in cyanidation |
| US3311468A (en) * | 1963-12-26 | 1967-03-28 | Davidoff Charles | Silver recovery process |
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