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Title: REDUCTION OF FLUORIDE TO METAL

Abstract

A process is given for making yttrium metal by reducing yttrium fluoride with calcium plus magnesium. Calcium is added in an excess of from 10 to 20% and magnesium in a quantity to yield a magnesium--yttrium alloy containing from 12 to 25% magnesium when the reaction mass is heated in an inert atmosphere at from 900 to 1106 deg C, but preferably above the melting point of the alloy. Calcium chloride may be added so as to obtain a less viscous slag containing from 30 to 60% calcium chloride. After removal of the slag the alloy is vacuum-heated at about 1100 deg C for volatilization of the magnesium and calcium.

Inventors:
; ;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4126643
Patent Number(s):
US 2950962
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-14-025878
NSA Number:
NSA-14-025878
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
METALS, CERAMICS, AND OTHER MATERIALS; CALCIUM; CALCIUM CHLORIDES; HEATING; HIGH TEMPERATURE; MAGNESIUM; MAGNESIUM ALLOYS; PRODUCTION; REDUCTION; SLAGS; VACUUM; VISCOSITY; VOLATILITY; YTTRIUM; YTTRIUM ALLOYS; YTTRIUM FLUORIDES

Citation Formats

Carlson, O.N., Schmidt, F.A., and Spedding, F.H. REDUCTION OF FLUORIDE TO METAL. United States: N. p., 1960. Web.
Carlson, O.N., Schmidt, F.A., & Spedding, F.H. REDUCTION OF FLUORIDE TO METAL. United States.
Carlson, O.N., Schmidt, F.A., and Spedding, F.H. Tue . "REDUCTION OF FLUORIDE TO METAL". United States.
@article{osti_4126643,
title = {REDUCTION OF FLUORIDE TO METAL},
author = {Carlson, O.N. and Schmidt, F.A. and Spedding, F.H.},
abstractNote = {A process is given for making yttrium metal by reducing yttrium fluoride with calcium plus magnesium. Calcium is added in an excess of from 10 to 20% and magnesium in a quantity to yield a magnesium--yttrium alloy containing from 12 to 25% magnesium when the reaction mass is heated in an inert atmosphere at from 900 to 1106 deg C, but preferably above the melting point of the alloy. Calcium chloride may be added so as to obtain a less viscous slag containing from 30 to 60% calcium chloride. After removal of the slag the alloy is vacuum-heated at about 1100 deg C for volatilization of the magnesium and calcium.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {8}
}