US389161A - Theodoee michaut - Google Patents
Theodoee michaut Download PDFInfo
- Publication number
- US389161A US389161A US389161DA US389161A US 389161 A US389161 A US 389161A US 389161D A US389161D A US 389161DA US 389161 A US389161 A US 389161A
- Authority
- US
- United States
- Prior art keywords
- ores
- mass
- michaut
- theodoee
- compound
- 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
- 238000000034 method Methods 0.000 description 18
- 150000001875 compounds Chemical class 0.000 description 16
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 6
- 235000015450 Tilia cordata Nutrition 0.000 description 6
- 235000011941 Tilia x europaea Nutrition 0.000 description 6
- 239000010433 feldspar Substances 0.000 description 6
- 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
- 239000004615 ingredient Substances 0.000 description 6
- 239000004571 lime Substances 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- 239000005864 Sulphur Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 229910052570 clay Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0038—Obtaining aluminium by other processes
- C22B21/0053—Obtaining aluminium by other processes from other aluminium compounds
- C22B21/0061—Obtaining aluminium by other processes from other aluminium compounds using metals, e.g. Hg or Mn
Definitions
- the object of our invention is to provide certain new and useful improvements for reducing or desulphurizing auriferous pyrites and other sulphurous ores.
- the process consists of mixing the pulverized ores with a compound consisting of feldspar, carbonate of lime, silicon, potash, and fire-clay, and then subjecting the mixed mass to heat in a roastingfnrnace.
- the operator can ascertain when the process is completed by taking a small quantity out of the furnace. If the mass taken out is entirely red when cold, then the process is tin ished; but when black or black spots still appear on the mass, then the process is not completed, and the mass must be further subjected to heat.
- the mass must be stirred up in the furnace while the roasting is going on.
- the gold and silver are in a free and native state, and are either amalgamated or chlorinated, as desired. If the ores or compound are wet, they must be dried before being placed in a roasting-furnace.
- ⁇ Ve prefer to use the above-described compound as it is found in the natural state, on account of its cheapness and the facility with which it can be obtained; but we do not restrict our tosucluasitis evidentthat the several ingredients may be obtained, separated, and mixed together with equally asgood results.
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)
- Cookers (AREA)
Description
NITED STATES PATENT OFFICO THEODORE MIOHAUT, PIERRE OONNOY, AND FRANK J. WIEST, OF BOULDER CITY, COLORADO.
PROCESS FOR REDUCING ORE.
SPECIFICATION forming part of Letters Patent No. 389,161, dated September 4, 1888.
Serial No. 224,460. (Specimens) To all whom it may concern.-
Be it known that we, THEODORE MioHAUr, PIERRE CONNOY, and FRANK J. WIEsT, of Boulder City, in the county of Boulder and State of Colorado, have invented a new and Improved Process for Reducing Ores,of which the following is a full, clear, and exact de scription.
The object of our invention is to provide certain new and useful improvements for reducing or desulphurizing auriferous pyrites and other sulphurous ores.
The process consists of mixing the pulverized ores with a compound consisting of feldspar, carbonate of lime, silicon, potash, and fire-clay, and then subjecting the mixed mass to heat in a roastingfnrnace.
Heretofore in smelting or reducing ores, especially gold and silver ores combined with sulphuret of iron or iron pyrites, the sulphur contained in the ores rendered the lat ter very refractory, so as to impair their value by preventing a recovery of the valuable metals or making the recovery very expensive. Such refractory ores are generally roasted; but this process has not been found to be very effective in removing or destroying the sul" phur sufficiently so as to render the resulting mass economically tractable in the subsequent reduction ofthe metallic substances contained in the mass.
With our improved process we are enabled to free the above-mentioned ores and also tellurinm from the sulphur, and we accomplish this result by pulverizing and mixing the ores with a compound consisting of the following ingredients, which are thoroughly mixed in a dry state and pulverized by roll eis or other means: feldspar, ten parts, carbonate of lime, ten parts; silica, twenty-five parts; carbonate of potassa, five parts, and fireclay, fifty parts. About fifty pounds of this compound are mixed with one hundred pounds of ore of middle or low grade; but when the ore is richer-such as highgrade telluriumwe use from sixty-five to seventy-five pounds of the compound to one hundred pounds of ore.
In practice we generally pulverize the compound and the ore together in the same machine, whereby the several ingredients are thoroughly mixed. The resulting mass is then put into a roasting-furnace of any approved construction and roasted from three to live hours, according to the quantity and nature of the mass. \Vhen the mass is subjected to heat of 1,100 to 2,000 Fahrenheit, it increases in bulk and becomes a sticky mass, inclosed, as it were, with a coating, thereby permitting the escape only of the vapors of the base metals and retaining the gold and silver in the refuse of the ore.
The operator can ascertain when the process is completed by taking a small quantity out of the furnace. If the mass taken out is entirely red when cold, then the process is tin ished; but when black or black spots still appear on the mass, then the process is not completed, and the mass must be further subjected to heat.
The mass must be stirred up in the furnace while the roasting is going on. When the roasting is completed,the gold and silver are in a free and native state, and are either amalgamated or chlorinated, as desired. If the ores or compound are wet, they must be dried before being placed in a roasting-furnace.
\Ve prefer to use the above-described compound as it is found in the natural state, on account of its cheapness and the facility with which it can be obtained; but we do not restrict ourselves tosucluasitis evidentthat the several ingredients may be obtained, separated, and mixed together with equally asgood results.
Having thus fully described our invention, we claim as new and desire to secure by Letters Patent- The herein-described process for desulphurizing ores, consisting of mixing the pulverized ores with a pulverized compound consisting of feldspar, carbonate of lime, silica, carbonate of potassa, and fire-clay, and then subjecting the mixed mass to heat, substantially as shown and described.
THEODORE MIOHAUT. PIERRE OONNOY. FRANK J. \VIEST.
\Vitnesses:
'1. J. GRAHAM, WILLIAM GROSECLOSE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US389161A true US389161A (en) | 1888-09-04 |
Family
ID=2458141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US389161D Expired - Lifetime US389161A (en) | Theodoee michaut |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US389161A (en) |
-
0
- US US389161D patent/US389161A/en not_active Expired - Lifetime
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