Matches 301 - 348 out of 348 < 1 2 3 4 5 6 7


Match Document Document Title
3341437 Method of producing rare earth oxyfluoride  
3337306 Extraction of fused salts of europium and neodymium using a molten borate ion-exchanger  
3302993 Process of recovering strontium, cesium, cerium and rare earth values from radioactive solutions  
3294494 Method for removing lanthanides and trivalent actinides from aqueous nitrate solutions  
3293004 Process for solvent extraction stripping  
3292062 Method for preparing stabilized barium titanate, and capacitor  
3282641 Scavenger and process for purification of metal fluorides  
3276849 Method for separating members of actinide and lanthanide groups  
3275404 Process for separating rare earth metal values  
3252754 Process for extraction of thoria and ceria from rare earth ores  
3243254 Method for extracting lanthanides and actinides  
3234494 Ferromagnetic compound and devices including elements thereof  
3230036 Method for separating americium and curium from the lanthanide rare earths and yttrium  
3228750 Process for separating rare-earth elements by ion exchange  
3199947 Method of purifying refractory sulfides  
3179492 Purification of certain refractory oxides  
3159452 Process for recovering thorium and rare earth values  
3153571 Purification of europium  
3128247 Ion exchange  
3112990 Process for separating cerium from trivalent rare earths  
3111375 Process for the separation of thorium, cerium and rare earths starting from their oxides or hydroxides  
3102783 Process for separating samarium, europium and ytterbium from other rare earths  
3092449 Process for the recovery of europium from low grade europium mixtures with other rare earths  
3078142 Process for separating yttrium and rare earths  
3049403 Process for precipitating readily filterable rare earth hydroxides  
3025131 Process for the removal of carbonates from carbonate-containing ores  
3009774 Process of making sodium-rare earth fluorides  
2999747 Method of treating refractory ores for the recovery of values therefrom  
2995420 Process for treating xenotime  
2993752 Thorium recovery process  
2988421 Process for the separation of thorium and rare earths from monazite  
2982601 Separation of uranyl and ruthenium values by the tributyl phosphate extraction process  
2967088 Extraction techniques for the separation and purification of metals  
2956857 Methods of decomposing complex uranium-rare earth tantalo-columbates  
2900231 Process for extracting rare earths from ores and residues  
2892681 Separation process for zirconium and compounds thereof  
2877093 Adsorption method for separating metal cations  
2874039 Extraction of scandium from its ores  
2873168 Recovery of pu from cerium trifluoride by fluorination  
2865708 Process of recovering cobalt, cerium, and manganese catalysts  
2859092 Solvent extraction process for the recovery of metals from phosphoric acid  
2849286 Method of processing monazite sand  
2815264 Processing of monazite sand  
2811411 Method of processing monazite sand  
2805928 Process for recovering rare-earth oxides  
2800956 Combination screen and storm window for basement steel sash  
2793106 Method for refining titanium, zirconium, cerium, hafnium and thorium  
2783125 Treatment of monazite  

Matches 301 - 348 out of 348 < 1 2 3 4 5 6 7