US1059709A - Process of producing low-carbon nickel alloys. - Google Patents

Process of producing low-carbon nickel alloys. Download PDF

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Publication number
US1059709A
US1059709A US44134108A US1908441341A US1059709A US 1059709 A US1059709 A US 1059709A US 44134108 A US44134108 A US 44134108A US 1908441341 A US1908441341 A US 1908441341A US 1059709 A US1059709 A US 1059709A
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United States
Prior art keywords
carbon
nickel
producing low
nickel alloys
oxid
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Expired - Lifetime
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US44134108A
Inventor
Eugene A Byrnes
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Electro Metallurgical Co USA
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Electro Metallurgical Co USA
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Priority to US44134108A priority Critical patent/US1059709A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel

Definitions

  • a product relatively high incarbon is made, for example the crude ferrochromium commonly produced by electrically smelting a mixture of chromite, carbon and a flux,
  • the process may be carried out either by 4 stirring nickel oxid into a molten body of the highcarbon metal or alloy; feeding nickel oxid into a bath of inert slag, for ex Specification of Letters Patent.
  • the process of producing low-carbon ferrochromium containin nickel, which consists in reacting on hlgh-carbon ferrochromium with nickel oxid, by feeding nickel oxid into a bath of calcium aluminate slag supported on the molten ferro-' chromium.

Description

UNITED STATES PATENT FFTC EUGENE A. BYRNES, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO ELECTRO METALLURGICAL COMPANY, OI CHICAGO, ILLINOIS, A CORPORATION OF WEST vmemm v .IROCESS OF IPRODU'CING LOW-CERBON NICKEL ALLOYS.
No Drawing.
To all whom it may concern: Be it known that I, EUGENE A. BYRNES, a citizen of the United States, residing at Washington, in the District of Columbia,
ess comprising two stages.
have invented-certain new and useful Improvements in Processes of Producing Low- Carbon Nickel Alloys, of which the following is a specification.
Accordlng to the present invention, the
production of low-carbon nickel alloys, specifically ferrochromium containing nickel and 1} to 2% of carbon, is efiected by a proc- In the first stage, a product relatively high incarbon is made, for example the crude ferrochromium commonly produced by electrically smelting a mixture of chromite, carbon and a flux,
, containing from 5 to of'carbon. The
7 tion of nickel oxid is considerably lower high-carbon product is then subjected to the action of an oxido'I' nickel, while heatedto such-temperature as to efi'ect a reactionbe-' tween its contained carbon and the nickel oxid, whereby the carbon is oxidized and eliminated, the reduced nickel alloying with the decarburized metal.
The temperature required. for the. reducthan that required for chromium oxid, .and
' Fe to FeO=l173 Cal.
lower than that for iron oxids, as shown by the following figures: Heat evolved on the oxidation of 1 kilo of Ni to NiO =1051 Cal.
Heat evolved on'the oxidation ofl kilo of oxidation of 1 kilo of Fe to Fe O 1746 Cal.
Heat evolved on the oxidation of 1 kilo of Cr to Cr O =300O (2) Cal. (See Metallurgz'oal Calculations, by Richards, Vol. 2, pages 326 and 327 The process can therefore be carried out at temperaturesdowe'r than that required to produce the crude ferro-chromium. r
The process may be carried out either by 4 stirring nickel oxid into a molten body of the highcarbon metal or alloy; feeding nickel oxid into a bath of inert slag, for ex Specification of Letters Patent.
Application filed July- 1, .1908. Serial No. 441,341.
Heat evolved on the.
' Patented Apr. 22, 1913.
ample calcium aluminate, supported by the molten crude metal or alloy; running the molten crude metal or alloy into a yessel containing nickel oxid; passing or percolating a stream'of the crude metal or alloy through a granular body of nickel oxid; or melting a mixture of the broken crude metal or alloy 2. The processof producing low-carbon ferrochromium containing nickel, which consists 1n reactlng on high-carbon ferrochr'o 'mium, with nickel oxid, at a temperature lower than the reduction-temperature of chromium oxid.
3. The process of producin low-carbon ferrochromium contamin mckel, which consists in reactin on high-carbon ferrochromium with nickel oxid, by feeding nickel oxid into a bath of slag supported on the molten ferrochromium,
4. The process of producing low-carbon ferrochromium containin nickel, which consists in reacting on hlgh-carbon ferrochromium with nickel oxid, by feeding nickel oxid into a bath of calcium aluminate slag supported on the molten ferro-' chromium.
In testimony whereof, I afiix my signature in presenceof two witnesses.
. EUGENE A. BYRNES. Witnesses:
N.,P. LEONARD, M. E. BRAWNER.
US44134108A 1908-07-01 1908-07-01 Process of producing low-carbon nickel alloys. Expired - Lifetime US1059709A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750285A (en) * 1951-08-01 1956-06-12 Electro Chimie Metal Process for extracting nickel from low grade ores
US2763918A (en) * 1953-06-05 1956-09-25 Chromium Mining & Smelting Cor Process of making a ferroalloying material and product obtained thereby
US2833646A (en) * 1955-06-20 1958-05-06 Int Nickel Co Nickel base alloy glass molding elements and method of making same
US2913337A (en) * 1955-07-25 1959-11-17 Cooper Alloy Corp Shell molding

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750285A (en) * 1951-08-01 1956-06-12 Electro Chimie Metal Process for extracting nickel from low grade ores
US2763918A (en) * 1953-06-05 1956-09-25 Chromium Mining & Smelting Cor Process of making a ferroalloying material and product obtained thereby
US2833646A (en) * 1955-06-20 1958-05-06 Int Nickel Co Nickel base alloy glass molding elements and method of making same
US2913337A (en) * 1955-07-25 1959-11-17 Cooper Alloy Corp Shell molding

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