Process for treating rare earth-fluorine materials
First Claim
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1. A PROCESS FOR HALOGENATING A RARE EARTH-FLUORINE COMPOUND WHICH COMPRISES:
- ESTABLISHING A HEATED REACTION ZONE, SAID ZONE CONTAINING A PARTICULATE RARE EARTHFLUORINE COMPOUND, PROVIDING SAID HEATED REACTION ZONE WITH A FLUORINE ACCEPTOR SELECTED FROM THE GROUP CONSISTING OF AT LEAST ONE OF BORON, SILICON, GERMANIUM, PHOSPHORUS, ARSENIC AND ANTIMONY, AND A HALOGEN SELECTED FROM THE GROUP CONSISTING OF AT LEAST ONE OF CHLORINE AND BROMINE, AND HEATING THE RESULTANT ADMIXTURE FOR A PERIOD OF TIME SUFFICIENT TO CONVERT AT LEAST THE MAJOR PORTION OF THE RARE EARTH VALUES IN SAID COMPOUND TO WATER SOLUBLE RARE EARTH HALIDES.
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1 Claim
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1. A PROCESS FOR HALOGENATING A RARE EARTH-FLUORINE COMPOUND WHICH COMPRISES:
- ESTABLISHING A HEATED REACTION ZONE, SAID ZONE CONTAINING A PARTICULATE RARE EARTHFLUORINE COMPOUND, PROVIDING SAID HEATED REACTION ZONE WITH A FLUORINE ACCEPTOR SELECTED FROM THE GROUP CONSISTING OF AT LEAST ONE OF BORON, SILICON, GERMANIUM, PHOSPHORUS, ARSENIC AND ANTIMONY, AND A HALOGEN SELECTED FROM THE GROUP CONSISTING OF AT LEAST ONE OF CHLORINE AND BROMINE, AND HEATING THE RESULTANT ADMIXTURE FOR A PERIOD OF TIME SUFFICIENT TO CONVERT AT LEAST THE MAJOR PORTION OF THE RARE EARTH VALUES IN SAID COMPOUND TO WATER SOLUBLE RARE EARTH HALIDES.
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Current AssigneeHenry H. Elliott, James L. Bradford, Mark M. Woyski
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Original AssigneeHenry H. Elliott, James L. Bradford, Mark M. Woyski
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InventorsWoyski, Mark M., Bradford, James L., Elliott, Henry H.
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Application NumberUS04/435,745Time in Patent Office998 DaysField of SearchUS Class Current423/21.1CPC Class CodesC01F 17/271 Chlorides
