US1374037A - Process for the production of low-carbon ferrozirconium - Google Patents
Process for the production of low-carbon ferrozirconium Download PDFInfo
- Publication number
- US1374037A US1374037A US398512A US39851220A US1374037A US 1374037 A US1374037 A US 1374037A US 398512 A US398512 A US 398512A US 39851220 A US39851220 A US 39851220A US 1374037 A US1374037 A US 1374037A
- Authority
- US
- United States
- Prior art keywords
- zirconium
- carbon
- alloy
- ferro
- low
- 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
- 229910052799 carbon Inorganic materials 0.000 title description 18
- 238000000034 method Methods 0.000 title description 12
- 238000004519 manufacturing process Methods 0.000 title description 10
- 230000008569 process Effects 0.000 title description 9
- 229910052726 zirconium Inorganic materials 0.000 description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 11
- 229910001093 Zr alloy Inorganic materials 0.000 description 8
- 229910001339 C alloy Inorganic materials 0.000 description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000005262 decarbonization Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical compound [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229940000425 combination drug Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
Definitions
- this invention relates to a method or process of manufacturing and producing a low carbon ferro-zirconium and more particularly to a ferro-zirconlum alloy preferably having a carbon content of less than two per cent.
- titanic oxid TiO for the purpose of decarbonization. This oxid reacts with the carbon in the high carbon ferro-zirconium andforms titanium.
- titanic oxid As a source of the titanic oxid, it is quite important that there be used some ore which contains a very small amount of iron oxid. For this purpose I preferably use rutile.
- the reaction is carried out. preferably in an electric furnace of the well known are type. In this furnace is charged a mixture Specification of Letters Patent. v
- the high carbon alloy could be first melted with a blanket of lime and then the titanic oxid could be added as the decarbonizing element.
- the method 'of making a low carbon alloy of iron and zirconium which consists in the decarbonization of a high carbon forgo-zirconium alloy by means of titanic 0x1 2.
- a method of making low carbon alloys of iron and zirconium which consists in charging into an electric furnace a mixture of ferro-zirconium which is high in carbon and a sufficient quantity of rutile to decarbonize the alloy.
Description
UNITED STATES PATENT OFFICE.
HUGH O. SICARD, OF BUFFALO, NEW
1,374,037. No nrawin g.
To all whom it may concern:
Be it known that I, HUGH C. SIoARn, a citizen of the United States of America, and a resident of the cit of Buffalo, county of Erie, and State of ew York, have invented a certain new and useful Process for the Production of Low-Carbon F errozirconium, of which the following is a full, clear, and exact description.
In general this invention relates to a method or process of manufacturing and producing a low carbon ferro-zirconium and more particularly to a ferro-zirconlum alloy preferably having a carbon content of less than two per cent.
On June 1st, 1920, Letters Patent No. 1,341,939 were granted me on a process for the production of low carbon ferro-chrome. The process or method herein described is in some respects like that described in the said Letters Patent. That process, however, has been modified in the manner hereinafter set forth in order to apply it to the manufacture of low carbon ferro-zirconium.
In seeking to produce low carbon ferrozirconium heretofore, those skilled in the art have sought to decarbonize the ferro-zirconium by using a zirconium ore in combina tion with burnt lime; the lime in such case forms a protective blanket of slag over the molten metal. The zirconium ore then reacts with the ferro-zirconium which contains carbon and in time the zirconium ore is decarbonized. A great objection to this proc ess resides in the fact that the iron oxid which is present in the zirconium ore is more readily reduced than the oxid of zirconium with the result that when the final substantially decarbonized ferro-zirconium is obtained it is found to have a lower content of zirconium than the original high carbon material.
In the invention herein described, I have overcome the difiiculties above set forth.
In carrying out my invention, I use titanic oxid (TiO for the purpose of decarbonization. This oxid reacts with the carbon in the high carbon ferro-zirconium andforms titanium.
As a source of the titanic oxid, it is quite important that there be used some ore which contains a very small amount of iron oxid. For this purpose I preferably use rutile.
The reaction is carried out. preferably in an electric furnace of the well known are type. In this furnace is charged a mixture Specification of Letters Patent. v
Patented Apr. 5, 1921.
Application filed July 28, 1920. Serial No. 398,612.
of the alloy of ferro-zirconium which has a certain carbon content and a quantity of rutile which will be suflicient to decarbonize the allo used. In place of the ferro-zirconium may use an alloy of zirconium and titanium WhlCh is high in carbon and then decarbonize it by the same process as hereinbefore set forth. Into this a charge of burnt lime is placed and melted down. The burnt lime forms a protective slag and when the reaction is complete the resulting alloy is tapped from the furnace.
Obviously, instead of-following the process exactly as hereinbefore set forth, the high carbon alloy could be first melted with a blanket of lime and then the titanic oxid could be added as the decarbonizing element.
Having thus described my invention, what I claim is: 4
1. The method 'of making a low carbon alloy of iron and zirconium which consists in the decarbonization of a high carbon forgo-zirconium alloy by means of titanic 0x1 2. The method of making a low carbon alloy of iron and zirconium which consists in the decarbonization of a high carbon ferro-zirconium alloy by means of an ore high in titanic oxid and low in iron oxid.
3. The method of making a low carbon alloy of iron andzirconium which consists in the decarbonization of high carbon ferrozirconium alloy by means of rutile ore.
4. The method of making a low carbon alloy of iron and zirconium which consists in charging into an electric furnace a mixture of ferro-zirconium, high in carbon, and a sufficient quantity of titanic oxid to decarbonize the alloy.
5. A method of making low carbon alloys of iron and zirconium which consists in charging into an electric furnace a mixture of ferro-zirconium which is high in carbon and a sufficient quantity of rutile to decarbonize the alloy.
6. The method of making a low carbon alloy of iron and zirconium which consists in charging into an electric furnace a mixture of ferro-zirconium which is high in carbon, a suflicient quantity of titanic oxid to decarbonize the alloy and a sufficient quantity of burnt lime to form a protective slag.
'In testimony whereof, I havehereunto signed my name.
HUGH C. SICARD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US398512A US1374037A (en) | 1920-07-23 | 1920-07-23 | Process for the production of low-carbon ferrozirconium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US398512A US1374037A (en) | 1920-07-23 | 1920-07-23 | Process for the production of low-carbon ferrozirconium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1374037A true US1374037A (en) | 1921-04-05 |
Family
ID=23575662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US398512A Expired - Lifetime US1374037A (en) | 1920-07-23 | 1920-07-23 | Process for the production of low-carbon ferrozirconium |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1374037A (en) |
-
1920
- 1920-07-23 US US398512A patent/US1374037A/en not_active Expired - Lifetime
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