US941553A - Process of producing low-carbon, low-silicon titanium alloys. - Google Patents

Process of producing low-carbon, low-silicon titanium alloys. Download PDF

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Publication number
US941553A
US941553A US37858007A US1907378580A US941553A US 941553 A US941553 A US 941553A US 37858007 A US37858007 A US 37858007A US 1907378580 A US1907378580 A US 1907378580A US 941553 A US941553 A US 941553A
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low
silicon
carbon
titanium
producing
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US37858007A
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Frederick M Becket
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Electro Metallurgical Co USA
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Electro Metallurgical Co USA
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    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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

  • FREDERICK M BECKET, 0F NIAGARA ,EALLs, NEW YORK, AssIeNoR 'ro ELEc'rRo METALLURGICAL COMPANY, acoRPoRArIoN or WEST VIRGINIA.
  • the resulting titanium alloyv contains a large proportlon of-carbon. Ferrotitanium high in carbon isnot a desirable alloy for usein the production or certain titanium st-eels; If, however, silica be added to the charge, the silicon reduced simultaneously with the titanium acts as a carbon-exeluding agent and a low-carbon high-silicon alloy may be produced.
  • a titanium alloy low in carbon and high'in silicon is subjected to an oxidizing reagent for the production of an alloy low in 'or substantially free from silicon.
  • an oxidizing reagent for the production of an alloy low in 'or substantially free from silicon.
  • a charge containing oxide of titanium and silicon, carbon and asource of iron is finely crushed and mixed with iror 'oxid and the mixture is subjected to a temperature suiiicient to efiect the oxidation of silicon in the alloy with simultaneous reduction of the iron oxid,the reduced iron alloying with the ferro-titanium.
  • the iron oxid for example hematite ore, may be added directly to the molten highsilicon alloy, either in the reduction furnace or in a separate vessel into which the alloy is tapped.
  • Iron oxid. is a desirable reagent for removing t e silicon from term-titanium, since it intro u'ces no new constituent into the alloy. Oxids of other metals, reducible by silicon and alloy-able with farm-titanium, may obviously be employed.
  • the alloys produced by thisprocess preferably contain titanium in excess of ten per cent, carbon not in excess of five per cent,
  • product containing about 30% of titanium and 2% of carbon, substantially free from silicon may be made by reacting with ferricoxid on an initial alloy "containing about 50% of titanium, 40% of silicon, 3% of car- Specification of Letters Patent.
  • a product containing 30% of titanium and 5% of carbon, substantially free from silicon, may be similarly of iron.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Silicon Compounds (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Catalysts (AREA)

Description

UNITED STATES PATENT OFFICE.
FREDERICK M. BECKET, 0F NIAGARA ,EALLs, NEW YORK, AssIeNoR 'ro ELEc'rRo METALLURGICAL COMPANY, acoRPoRArIoN or WEST VIRGINIA.
PROCESS OF PRODUCING LOW-CARBON, LOW-SILICON TITANIUM ALLOYS.
941,553. No Drawing.
in Processes of Producing Low-Carbon, Low-Silicon Titanium Alloys, of which the following is aspecification.
When ores of titaniumand an alloying metal are reduced by carbon in an electric furnace, the resulting titanium alloyv contains a large proportlon of-carbon. Ferrotitanium high in carbon isnot a desirable alloy for usein the production or certain titanium st-eels; If, however, silica be added to the charge, the silicon reduced simultaneously with the titanium acts as a carbon-exeluding agent and a low-carbon high-silicon alloy may be produced.
According to the presentprocess, a titanium alloy low in carbon and high'in silicon is subjected to an oxidizing reagent for the production of an alloy low in 'or substantially free from silicon. For example, the
duced by electrically smelting a charge containing oxide of titanium and silicon, carbon and asource of iron, is finely crushed and mixed with iror 'oxid and the mixture is subjected to a temperature suiiicient to efiect the oxidation of silicon in the alloy with simultaneous reduction of the iron oxid,the reduced iron alloying with the ferro-titanium. The iron oxid, for example hematite ore, may be added directly to the molten highsilicon alloy, either in the reduction furnace or in a separate vessel into which the alloy is tapped.
Iron oxid. is a desirable reagent for removing t e silicon from term-titanium, since it intro u'ces no new constituent into the alloy. Oxids of other metals, reducible by silicon and alloy-able with farm-titanium, may obviously be employed.
The alloys produced by thisprocess preferably contain titanium in excess of ten per cent, carbon not in excess of five per cent,
' and silicon not in excess of five per cent. A
product containing about 30% of titanium and 2% of carbon, substantially free from silicon, may be made by reacting with ferricoxid on an initial alloy "containing about 50% of titanium, 40% of silicon, 3% of car- Specification of Letters Patent.
Application filed June '12, 1907. Serial No. 378,580.
Patented Nov. 30, 1909.
bon' and 7% of iron. .A product containing 30% of titanium and 5% of carbon, substantially free from silicon, may be similarly of iron.
I claim:
, 1. The process of producing low-silicon a loys, which consists in producing titanium a high-silicon titanium alloy and oxidizing out the contalned s1l1con.
2. The process of producing low-silicon I titanium alloys, which consists in producing ah-igh-silicon titanium alloy and oxidizing "out the contained silieon by an oxid of the alloyed metal.
3. The. process of producing low-silicon term-titanium, which consists in producing hlgh-sihcon ferro-titanlum and oxldlzlng low-carbon hlgh-slhcon'ferro-tltanium proout the contained silicon by means of iron oxid.
4. The process of producing low-carbon, low-silicon, ferro-titanium' which consists in producing high-silicon ierro-titanium by smelting a'mixture of oxide of titanium and silicon, carbonand a source of iron, and oxidizing out the contained silicon.
5. The process of producing low-carbon, low-silicon, ferro-titanium which consists in producing high-silicon i errotitanium by smelting a mixture of oxids of titanium and silicon, carbon and a source of iron, and
US37858007A 1907-06-12 1907-06-12 Process of producing low-carbon, low-silicon titanium alloys. Expired - Lifetime US941553A (en)

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