US1024476A - Article composed essentially of titanium and silver and method of producing the same. - Google Patents
Article composed essentially of titanium and silver and method of producing the same. Download PDFInfo
- Publication number
- US1024476A US1024476A US67425712A US1912674257A US1024476A US 1024476 A US1024476 A US 1024476A US 67425712 A US67425712 A US 67425712A US 1912674257 A US1912674257 A US 1912674257A US 1024476 A US1024476 A US 1024476A
- Authority
- US
- United States
- Prior art keywords
- silver
- titanium
- producing
- oxid
- alloy
- 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
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- 239000004332 silver Substances 0.000 title description 37
- 229910052709 silver Inorganic materials 0.000 title description 35
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title description 14
- 239000010936 titanium Substances 0.000 title description 14
- 229910052719 titanium Inorganic materials 0.000 title description 14
- 238000000034 method Methods 0.000 title description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 36
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910001069 Ti alloy Inorganic materials 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 3
- 229910001316 Ag alloy Inorganic materials 0.000 description 2
- 229910002056 binary alloy Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Chemical compound CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- -1 oxy- Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/06—Alloys based on silver
Definitions
- the objects of my present invention comprise the production of a binary alloy of titanium with silver and provision of methods for producing it, so simple and reliable in operation, and so economical, as to justify manufacture on idustrial scales. I attain these objects as hereinafter described. I have discovered that the said binary alloy of titanium with silver is exceptionally useful for the purpose of purifying silver in mass as heretofore produced in the usual processes of manufacture. Silver, while in molten state, absorbs gaseous elements or compounds, which are dissolved in the metal and retained therein as it solidifies during cooling.
- Segregated titanium is still I believe unattainable in quantities sufficient for operations on an industrial scale or at all events unattainable except at too great cost. Moreover the peculiarcharacteristic properties of titanium, as compared with those ,charge into a graphite crucible, or other container properly adapted, some silver 'sufiicient on being melted to form a small supporting or initiatory bath of that metal.
- This mixture is then heated b any convenient'means to a point at whic the aluminum melts, thereby supplying a bfizlh e additional heat developed bythe reduction of the oxid of silver by the aluminum rapidly raises the charge to 'a temperature r russiad to set 11 the reduction of the end of titanium y the aluminum; which then proceeds until the reduction of all the oxide present is completed.
- the said alloy may be produced, though not so advantageously, by substantially the process above referred to by using as the argentic material in the process above referred to metallic silver exclusively, or, on the other hand, by using as such argentic material oxid of silver exclusively.
- the molten product on being withglrawn and cooled will be found to be an alloy of titanium and silver, the percentage of the former being proportional to the amounts of titanium oxid and aluminum charged.
- My said alloy of titanium and silver may also, though not so advantageously, be produced by substituting carbon for aluminum as the reducing agent, in which case it is essential, in industrial practice, to employ such high temperatures as are derivable from some of the now well known forms of electric furnaces, such for example as illustrated and described in Letters Patent No. 802,941, granted to me October 24, 1905.
- oxid of silver, oxid of titanium, and carbon are employed as per the formulae:-
- the method of producing an alloy of titanium with silver which comprises incorporating titanic acid into a bath of molten silver in-presence of a reducing agent, subjecting the bath to a temperature sufficient to insure reduction of-said titanic acid by said agent, and withdrawing and cooling the resulting metallic product.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
UNITED STATES PATENT OFFICE.
AUGUSTE J. ROSSI, OF NIAGARA FALLS, NEW YORK, ASSIGNOR TO THE TITANIUM ALLOY MANUFACTURING COMPANY, OF NEW YORK, N. Y.,-'A CORPORATION OF I .MAINE.
ARTICLE COMPOSED ESSENTIALIY TITANIUM SILVER METHOD OF PRO- DUGING- THE SAME.
No Drawing.
Specification or Letters Patent. Application filed. January 30,1912. Serial No. 674,257.
Patented Apr. 23, 1912.
To all whom 'it may 001mm.-
Be it known that I, AUcUs'rE J. RossI, a citizen of the United States, and a resident of Niagara Falls, in the county of Niagara and State of New York, have invented a certain new and useful Article Composed Essentially of Titanium and Silver and "Methods of Producing the Same, of which the following isa specification.
The objects of my present invention comprise the production of a binary alloy of titanium with silver and provision of methods for producing it, so simple and reliable in operation, and so economical, as to justify manufacture on idustrial scales. I attain these objects as hereinafter described. I have discovered that the said binary alloy of titanium with silver is exceptionally useful for the purpose of purifying silver in mass as heretofore produced in the usual processes of manufacture. Silver, while in molten state, absorbs gaseous elements or compounds, which are dissolved in the metal and retained therein as it solidifies during cooling. Forinstance oxy-' gen from the atmosphere is thus very largely absorbed, and, to a great extent, combined chemically with the silver, forming oxids thereof, which, together with oxygen, if any, remaining uncombined, are found occluded in the mass of the solidified metal. The aforesaid foreign elements and compounds are usually unhomogeneouslydistributed in uncontrollable locations throughout the mass. of the metal, thus producing blow-holes or other cavities or pits on the surface. The presence ofsuch impurities and their'resultant imperfections in the metal not only disfigure it for certain purposes for which a high and perfectpolished surface is desired, but
also, after solidification of the metal, tend to subse uent additional deteriorations of the meta, including particularly its continued undesirable oxidation by normal outside influences; The impurities mentioned, and their results on the metal, depreciate its value in mass for many special purposes, as will be read ly understood. I have discovered that the said undesirable impurities can all of. them be eliminated by addin to the silver, while molten, metallic titamum in"amounts proportioned toof molten aluminum to the charge.
satisfy the chemical affinities therefor of such undesired elements and compounds and also properties desirable in some cases imparted by increasing such amount so as to retain in the resulting product a moderate proportionas for instance less than one per cent.- of titanium.
Segregated titanium is still I believe unattainable in quantities sufficient for operations on an industrial scale or at all events unattainable except at too great cost. Moreover the peculiarcharacteristic properties of titanium, as compared with those ,charge into a graphite crucible, or other container properly adapted, some silver 'sufiicient on being melted to form a small supporting or initiatory bath of that metal.
To such silver I add an oxid of silver, for.
instance Ag O, and also titanic acid mixed therewith in such proportions'as, on reduction, taken together with the silver of the bath, to impart to the resulting alloy the desired respective proportions of the two metals. To the said sllver and mixture of oxids I also add such an, amount of aluminum (preferably in shots or the like so as to melt more'rapidly) as is chemically sufficient to decompose the oxids of silver and of titanium and reduce their respective titanium and silver contents to their metallic states. This mixture is then heated b any convenient'means to a point at whic the aluminum melts, thereby supplying a bfizlh e additional heat developed bythe reduction of the oxid of silver by the aluminum rapidly raises the charge to 'a temperature r uired to set 11 the reduction of the end of titanium y the aluminum; which then proceeds until the reduction of all the oxide present is completed. Care should be reactions to which the latter is due being as per the following formulae, assuming that Ag O is the oxid of silver employed I prefer to employ the foregoing method largely because of its economy, the cost of the oxid requisite to produce the required amount of silver being considerably less than that of such amount .of silver in metallic form, and also because the heat of formation of oxid of silver is so small compared to that of the formation of aluminum oxid as to leave a large surplus of heat immediately applicable to the reduction of the oxid of titanium whereby the reactions are promoted and accomplished at a considerably less expenditure of external heat than required Where silver altogether is alone employed in the charge. It will be understood, however, that the said alloy may be produced, though not so advantageously, by substantially the process above referred to by using as the argentic material in the process above referred to metallic silver exclusively, or, on the other hand, by using as such argentic material oxid of silver exclusively. The molten product on being withglrawn and cooled will be found to be an alloy of titanium and silver, the percentage of the former being proportional to the amounts of titanium oxid and aluminum charged.
My said alloy of titanium and silver may also, though not so advantageously, be produced by substituting carbon for aluminum as the reducing agent, in which case it is essential, in industrial practice, to employ such high temperatures as are derivable from some of the now well known forms of electric furnaces, such for example as illustrated and described in Letters Patent No. 802,941, granted to me October 24, 1905. In this case, oxid of silver, oxid of titanium, and carbon are employed as per the formulae:-
The said ingredients, either with or without some metallic silver as may be preferred,
are changed in said furnace and the current turned on. This will result in production of a bath of molten silver, and the current being continued the titanium oxid will be reduced to titanium which mingles or dissolves in said bath of silver to constitute the said alloy. In this instance, like the foregoing, the addition of silver in metallic state, though not absolutely necessary, facilitates the reduction of the titanium oxid by the carbon and it will of course be understood that the alloy may be thus produced by using as the only argentic material of the charge metallic silver.
The proportions of the ingredients used in the charge will be varied according to the percentage of the respective metals desired in the alloy according tothe formulas above given and as experience and test in each case will readily demonstrate to those skilled in the metallurgical art is required for the particular'purpose for which the alloy is to be used.
What I claim as new and desire to secure by Letters Patent is the following, viz
1. As a new article an alloy of titanium with silver.
2. The method of producing an alloy of titanium with silver which comprises incorporating titanic acid into a bath of molten silver in-presence of a reducing agent, subjecting the bath to a temperature sufficient to insure reduction of-said titanic acid by said agent, and withdrawing and cooling the resulting metallic product.
3. The method of producing an alloy of titanium with silver which comprises bringing together argentic material, titanic acid and carbon, and subjecting the combination to a temperature suiiicient to insure production therefrom of molten silver and molten aluminum.
4. The method of producing an alloy of titanium with silver which comprises bringing together oxid of silver, oxid of titanium and carbon, and subjecting the combination 7 to a temperature sufiicient to insure reduction of said oxids by said carbon and then withdrawing and cooling the resulting metallic product.
aueus'rn J. uossr.
Witnesses:
WALTER D. EoMoNos, PHILIP C. Pack.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67425712A US1024476A (en) | 1912-01-30 | 1912-01-30 | Article composed essentially of titanium and silver and method of producing the same. |
US680370A US1025426A (en) | 1912-01-30 | 1912-02-27 | Article composed essentially of titanium and silver and method of producing the same. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67425712A US1024476A (en) | 1912-01-30 | 1912-01-30 | Article composed essentially of titanium and silver and method of producing the same. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1024476A true US1024476A (en) | 1912-04-23 |
Family
ID=3092772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US67425712A Expired - Lifetime US1024476A (en) | 1912-01-30 | 1912-01-30 | Article composed essentially of titanium and silver and method of producing the same. |
Country Status (1)
Country | Link |
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US (1) | US1024476A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4775511A (en) * | 1986-07-08 | 1988-10-04 | William Kono | Method of sulfide tarnish inhibiting of silver-copper, silver-gold and silver-copper-gold alloys |
US4781734A (en) * | 1982-03-26 | 1988-11-01 | Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung | Non-porous hydrogen diffusion membrane and utilization thereof |
-
1912
- 1912-01-30 US US67425712A patent/US1024476A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4781734A (en) * | 1982-03-26 | 1988-11-01 | Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung | Non-porous hydrogen diffusion membrane and utilization thereof |
US4775511A (en) * | 1986-07-08 | 1988-10-04 | William Kono | Method of sulfide tarnish inhibiting of silver-copper, silver-gold and silver-copper-gold alloys |
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