US2300943A - Process of alloying molybdennum with ferrous alloys - Google Patents
Process of alloying molybdennum with ferrous alloys Download PDFInfo
- Publication number
- US2300943A US2300943A US387286A US38728641A US2300943A US 2300943 A US2300943 A US 2300943A US 387286 A US387286 A US 387286A US 38728641 A US38728641 A US 38728641A US 2300943 A US2300943 A US 2300943A
- Authority
- US
- United States
- Prior art keywords
- molybdenum
- alloying
- ferrous alloys
- molybdennum
- briquettes
- 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
- 229910000640 Fe alloy Inorganic materials 0.000 title description 5
- 238000000034 method Methods 0.000 title description 5
- 238000005275 alloying Methods 0.000 title description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 11
- 229910052750 molybdenum Inorganic materials 0.000 description 11
- 239000011733 molybdenum Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 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
- C22C33/00—Making ferrous alloys
- C22C33/006—Making ferrous alloys compositions used for making ferrous alloys
Definitions
- the present invention relates to new and useful process of producing molybdenum containing ferrous alloys.
- a further object of the invention is the provision of an improved process for the production of ferrous alloys containing molybdenum and, if desired, other alloying agents with substantially complete recovery of the alloying agent and with increased speed.
- briquettes comprising an intimate mixture of an oxide of molybdenum and a plurality of reducing agents, preferably carbon and one or more of the following: aluminium, magthe molten metal'in the ladle or to the charge:
- the mixture in the furnace in the desired quantity and are in excess of 10% up to 5% or,6% of one or more active reducing agents, such as aluminium, magnesium, calcium or silicon, the mixture being formed into uniform briquettes by powerful hydraulic or other pressure to give dense, compact briquettes with the various substances in as intimate contact as possible.
- active reducing agents such as aluminium, magnesium, calcium or silicon
- the required quantity of the molybdenum, in the form of these briquettes, is added to the molten ferrous metal in the ladle, or they may be charged to the furnace, and the heat of the metal quickly causes the carbon and the more active reducing agents to reduce the molybdenum oxide to metallic molybdenum which is absorbed in the molten metal.
- the more active reducing agents shorten the time required to complete the reaction and absorption of the molybdenum into the forrous metal, as might be expected, and also give a more complete recovery of the molybdenum. Further, they eifect further economies in alloy production,
- Parts Molybdenum trioxide .or dioxide 100 Still pitch or other carbonaceous binder- 5 to Aluminium powder 3 to The aluminium may be replaced in whole or in part by up to 10 or 12 parts silicon metal, up to 15 or 18 parts magnesium or up to parts of calcium metal, orby mixtures of these metals.
Landscapes
- 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
Patented Nov. 3, 1942 2,300,943 ICE PROCESS OF ALLOYING MOLYBD'ENNUPII WITH FERROUS ALLOYS Arthur Linz, New York, N. Y., assignor to Climax Molybdenum Company, New York, N. Y., a cor poration of Delaware No Drawing. Application April '7, 1941, Serial No.,387,286
2 Claims. I (01. 75-133) The present invention relates to new and useful process of producing molybdenum containing ferrous alloys.
Objects and advantages of the invention willbe set forth in part hereinafter and in part will be obvious herefrom, or may be learned by practice with the invention, the same being realized and attained by means of the compositions, steps,
ment on my prior patents under certain conditions of operation and for certain purposes and it is an object of my present invention to provide molybdenum containing briquettes for the production of ferrous alloys which-are reduced and dissolved even more readily than those of my prior patents .and which give an even higher recovery of molybdenum in the presence of certain elements. A further object of the invention is the provision of an improved process for the production of ferrous alloys containing molybdenum and, if desired, other alloying agents with substantially complete recovery of the alloying agent and with increased speed.
' In accordance with the present invention there are provided briquettes comprising an intimate mixture of an oxide of molybdenum and a plurality of reducing agents, preferably carbon and one or more of the following: aluminium, magthe molten metal'in the ladle or to the charge:
in the furnace in the desired quantity and are in excess of 10% up to 5% or,6% of one or more active reducing agents, such as aluminium, magnesium, calcium or silicon, the mixture being formed into uniform briquettes by powerful hydraulic or other pressure to give dense, compact briquettes with the various substances in as intimate contact as possible.
The required quantity of the molybdenum, in the form of these briquettes, is added to the molten ferrous metal in the ladle, or they may be charged to the furnace, and the heat of the metal quickly causes the carbon and the more active reducing agents to reduce the molybdenum oxide to metallic molybdenum which is absorbed in the molten metal. j
The more active reducing agents shorten the time required to complete the reaction and absorption of the molybdenum into the forrous metal, as might be expected, and also give a more complete recovery of the molybdenum. Further, they eifect further economies in alloy production,
when chromium or vanadium are present in the alloy as they avoid the necessity for the separate or later addition of ferro-silicon and also prevent any substantial loss of the chromium or vanadium which might otherwise occur. Thus, the reduction of the, briquettes when accomplished in part by reducing agents more active than carbon, and in part by carbon, does not interfere with the retention by the alloy of its chromium andvanadium content.
As specific examples of briquettes in accordance with the present invention, the following are given:
Parts Molybdenum trioxide .or dioxide 100 Still pitch or other carbonaceous binder- 5 to Aluminium powder 3 to The aluminium may be replaced in whole or in part by up to 10 or 12 parts silicon metal, up to 15 or 18 parts magnesium or up to parts of calcium metal, orby mixtures of these metals.
The invention in its broader aspects is not limited to the specific compositions. processes and steps described and departures may be made therefrom within the scope of the accompanying claims without departing from the principles of the invention and without sacrificing its chief calcium and magnesium, in an amount suflicient to reduce the molybdenum.
ARTHUR LINZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US387286A US2300943A (en) | 1941-04-07 | 1941-04-07 | Process of alloying molybdennum with ferrous alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US387286A US2300943A (en) | 1941-04-07 | 1941-04-07 | Process of alloying molybdennum with ferrous alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2300943A true US2300943A (en) | 1942-11-03 |
Family
ID=23529232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US387286A Expired - Lifetime US2300943A (en) | 1941-04-07 | 1941-04-07 | Process of alloying molybdennum with ferrous alloys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2300943A (en) |
-
1941
- 1941-04-07 US US387286A patent/US2300943A/en not_active Expired - Lifetime
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