US994055A - Process of reducing refractory metallic oxids. - Google Patents

Description

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PROCESS OF REDUCING REFRACTORY METALLIC OXIDSJ Specification of Iietters l atent. I Patented May 30, 1911.

No Drawing." 'briginal application filed pctober 9, 1908, Serial No. 456,926. Divided and this application 1 filed February 1911. Serial No. 607,689.

To all whom it may concern:

Be it known that I, GIDEoN BOERIGKE, a citizen of the -United States, residing at Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Processes of Reducing Refractory Metallic Oxids, of which the following is a specification.

My invention has particular relation to those alloys in which vanadium, molybdenum, tungsten or similar metals are combined with iron, copper, or other metals, and the present application constitutes a division of my ap lication Serial Number 456,926, filed Octo er 9th, 1908.

Various processes have'been heretofore used forithe production of ferro-vanadium andother alloys, and among such processes there are some 1n which sil con, ferro-sllicon, or aluminum 1s largely used, as a reducmg agent, and in carrying out certain of the said' prior processes it has been found that the resulting product contains an objectionable vquantity of silicon or other like reducing agent. Substantially similar difliculties have been encountered in connection with the reduction of vanadium and other metals where the reducing agent employed is of a character, which, if it remains in the resultant product in a percentage greater than a practically allowable amount, renders said product inferior.

1 One of the primary objects of my inventionvis the provision of a process in which the above enumerated difficulties will, be overcome, that is to say, in which a reducing agent will be employed which would remain in the resultant product only in small percentages, and which is of a character that percentages 1n which it occurs.

A further object of my invention is the use of steps and materials which will produce a product of uniformity and at a reduced cost.

In carrying out my invention I em loy any suitable oxid or compound of vanadium, molybdenum, tungsten or similar metals, such for-example, as vanadate of iron, which oxid or" compound I mix with man anese metal and also some form of flux, as or instance, s1l1ca or common sand, the same being put in a suitable vessel and subjected to.

suflicient heat to effect a reduction of the vanadium and iron, or other metals which it is desired to combine with the vanadium; the resultant product in theabove example where vanadate of iron is used being ferrovanadium and a slag composed chiefly of oxids of silicon and manganese. In carrying out the process referred to I prefer to use some carbon.

Having thus described my invention and desire to secure by Letters Patent is the following 1. The process of producing. vanadium, tungsten, molybdenum, and their alloys which consists in reducing oxids or com illustrated its use,-what I claim as-new and I pounds of vanadium, tungsten, and molybdenum in the presence of heat by the use of lfp'angan'ese metal together with a suitable ux. 1 i

2. The process of producing vanadium, tungsten, molybdenum and similar metals and their alloys which consists in reducing oxids or compounds of vanadium, tungsten, molybdenum and similar metals in the presence of heatby the use of maganese metal together with carbon and a suitable flux.

In testimony whereof I have hereunto signed my name in the presence of the two subscribed witnesses,

GIDEON BOERICKE.

Witnesses: V

G. M. FINLEr, ARTHUR BAR'rscH.