| Patent No. | Patent Title: |
| 4702895 | Purification of molybdenum |
| 4692320 | Method of making oxynitrides |
| 4690813 | Molybdenum oxide whiskers and a method of producing the same |
| 4689211 | Method of preparing fibrous alkali metal titanate |
| 4676965 | Process for producing high purity silicon nitride |
| 4673554 | Method of purifying tantalum |
| 4673561 | Process for the manufacture of hydrated oxides and tri- and tetra... |
| 4670243 | Method of precipitating metal titanate powders |
| 4670231 | Continuous procedure of obtention of compounds of aluminum from a... |
| 4668486 | Method for removing organic substances from caustic aluminate liq... |
| 4668501 | Process for preparing a titanium oxide powder |
| 4668502 | Method of synthesis of gaseous germane |
| 4666686 | Process for the fluid-fluid extraction of gallium, germanium or i... |
| 4666687 | Method and apparatus for decomposing sodium aluminate liquors wit... |
| 4664903 | Removal of sulfur compounds from gases |
| 4664894 | Micronized zirconia and method for production thereof |
| 4663131 | Process for the preparation of titanium dioxide |
| 4663132 | Method of processing sodium oxalate formed during the digestion o... |
| 4663137 | Process for producing cerium oxide particulates |
| 4663133 | Removal of high molecular weight organic compounds from Bayer pro... |
| 4661330 | Process for the preparation of cerium oxide particulates |
| 4661328 | Alumina from high silica bauxite |
| 4652439 | Process for preparing fibrous alkali metal titanate |
| 4652438 | Chemical vapor purification of fluorides |
| 4650649 | Catalyst recovery process |
| 4650652 | Process for recovering highly pure rare earth oxides from a waste... |
| 4650659 | Process for the preparation of bismuth germanate of formula Bi |
| 4650653 | Production of alumina from gibbsite-bearing bauxite of low reacti... |
| 4647438 | Separation of rare earth values by liquid/liquid extraction |
| 4647439 | Process for the continuous production of alumina from bauxites ... |
| 4647404 | Process for preparing a metamorphosed metal oxide |
| 4645651 | Method of producing vanadium compounds from vanadium-containing r... |
| 4643885 | Method of processing sodium oxalate formed during the digestion o... |
| 4643884 | Purification of molybdenum trioxide |
| 4640826 | Method of making yttrium silicon oxy compound |
| 4640823 | Alkaline leaching of vanadium bearing residues |
| 4639356 | High technology ceramics with partially stabilized zirconia |
| 4639355 | Process for recovering gallium from aluminum smelting dust |
| 4639363 | Process for preparing amorphous phases of intermetallic compounds... |
| 4637927 | Process for accelerating of amorphization of intermetallic compou... |
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