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Class Information
Number: 75/610
Name: Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures > Processes > Producing or treating free metal > At 300 degrees c or greater (e.g., pyrometallurgy, etc.) > Nonferrous > Rare earth metal, singly or in combination
Description: Process in which a Rare earth metal (i.e., Scandium (Sc), Yttrium (Y), Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Samarium (Sm), Europium (Eu), Gadolinium (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu)) is produced or a metal that contains over 50 percent by weight Rare earth metal, singly or in combination, is treated.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8282703 |
Rare earth recovery from phosphor material and associated method |
Oct. 9, 2012 |
| 7279036 |
Process for preparation of inorganic colorants from mixed rare earth compounds |
Oct. 9, 2007 |
| 6960240 |
Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet |
Nov. 1, 2005 |
| 6669755 |
Apparatus and method for treating containerized feed materials in a liquid reactant metal |
Dec. 30, 2003 |
| 6309441 |
Reduction-melting process to form rare earth-transition metal alloys and the alloys |
Oct. 30, 2001 |
| 5972074 |
Method for reducing impurities in misch metal and alloys |
Oct. 26, 1999 |
| 5389123 |
Method for continuously recovering metals using a dual zone chemical reactor |
Feb. 14, 1995 |
| 5314526 |
Metallothermic reduction of rare earth fluorides |
May. 24, 1994 |
| 5174811 |
Method for treating rare earth-transition metal scrap |
Dec. 29, 1992 |
| 5087291 |
Rare earth-transition metal scrap treatment method |
Feb. 11, 1992 |
| 4992096 |
Metallothermic reduction or rare earth metals |
Feb. 12, 1991 |
| 4767455 |
Process for the preparation of pure alloys based on rare earths and transition metals by metallothermy |
Aug. 30, 1988 |
| 4725312 |
Production of metals by metallothermia |
Feb. 16, 1988 |
| 4695427 |
Method for production of lanthanide-containing alloy |
Sep. 22, 1987 |
| 4680055 |
Metallothermic reduction of rare earth chlorides |
Jul. 14, 1987 |
| 4609402 |
Method of forming magnetostrictive rods from rare earth-iron alloys |
Sep. 2, 1986 |
| 4578242 |
Metallothermic reduction of rare earth oxides |
Mar. 25, 1986 |
| 4439232 |
Samarium metal production |
Mar. 27, 1984 |
| 4243411 |
Reduction of metal sulfides |
Jan. 6, 1981 |
| 4047982 |
Permanent magnet and process for producing the same |
Sep. 13, 1977 |
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