Download or read book Preparation of Yttrium Metal by Reduction of Yttrium Trifluoride with Calcium written by O. Norman Carlson and published by . This book was released on 1956 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The preparation of yttrium metal by the reduction of yttrium trifluoride with calcium is described. Alternate methods employing the formation of a low melting Y-Zn or Y-Mg intermediate alloy are evaluated and data on chemical and microscopic purity of the resulting metal are presented.
Download or read book PREPARATION OF YTTRIUM METAL BY REDUCTION OF YTTERIUM TRIFLUORIDE WITH CALCIUM written by and published by . This book was released on 1956 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation of High purity Yttrium by Metallic Reduction of Yttrium Trichloride written by Frank E. Block and published by . This book was released on 1960 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Preparation and Properties of Yttrium Mixed Metal written by John Frederick Gross Hicks and published by . This book was released on 1918 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation of Yttrium Fluoride Using Fluorine written by R. L. Tischer and published by . This book was released on 1959 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Metallic Reduction of Rare earth Halides and Oxides written by Thomas T. Campbell and published by . This book was released on 1961 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Preparation Properties and Analysis of High Purity Yttrium Oxide and Yttrium Metal at the Ames Laboratory written by Charles V. Banks and published by . This book was released on 1959 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List written by and published by . This book was released on 1948 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extractive Metallurgy of Rare Earths written by Nagaiyar Krishnamurthy and published by CRC Press. This book was released on 2004-12-20 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extractive Metallurgy of Rare Earths compiles information from scattered sources that is often available only to specialists. It provides a complete and usable survey of the rare earth resources, extraction, and production of numerous end products that translates to both laboratory and industrial settings. This book is a source of industry expertis
Download or read book Technical Papers written by Metallographic Group Meeting and published by . This book was released on 1958 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by and published by . This book was released on with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quarterly Summary Research Report in Metallurgy written by and published by . This book was released on 1955-05 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation of Yttrium and Rare earth Metals by Metallothermic Reduction written by Frank Elmer Block and published by . This book was released on 1964 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made of various methods for the preparation of yttrium or rare-earth metals by metallothermic reduction. Particular emphasis was placed on the use of high-purity chloride salts as intermediates. Methods were stressed which appeared adaptable to production of high-purity, ductile metal on a plant scale. Reactions were chosen for study on the basis of thermodynamic considerations and also from a standpoint of chemical and physical properties of reactants and byproducts. Consideration was given to construction materials and their contribution of impurities to the metal products. Yttrium or rare-earth chlorides, fluorides, bromides or iodides were investigated as intermediates for metal production. Emphasis was placed on the development of methods for preparing these halides and for refining them to a high state of purity. Rare-earth chlorides were prepared either by slow dehydration of hydrated salts while in contact with ammonium chloride, or by a more rapid technique involving the direct chlorination of mixtures of rare-earth oxides and carbon. In either case, chloride salts were purified by vacuum distillation or by filtration of molten salts. Lithium, sodium, potassium and calcium were tested as reductants for anhydrous halides. These metals were compared as reductants on the basis of operating characteristics, purity of metal product, and yield of product. Yttrium and rare-earth metals prepared in this study were consolidated, usually by inert-atmosphere arc melting, and the consolidated metals were evaluated on the basis of chemical analyses and mechanical workability. Of the many systems studied, best results were obtained by the lithium reduction of rare-earth chlorides in Inconel or molybdenum apparatus. Metal made by this procedure was freed of byproduct lithium chloride by vacuum distillation, and the rare-earth metal, which appeared as a sponge, was consolidated by arc-melting. Yttrium was prepared by this technique on a scale of 15 pounds of metal per batch. Metal recoveries were greater than 95 percent and the major impurity, oxygen, was usually present in amounts less than 500 ppm. Samarium and europium cannot be prepared by reduction of their halide salts. These metals were produced by reduction of their oxides in a high vacuum employing lanthanum, cerium, or zirconium as reductants. Yields were usually over 90 percent during tests conducted at 900 to 1450°C.
Download or read book Preparation of Low Oxygen Content Yttrium Fluoride written by M. Smutz and published by . This book was released on 1958 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1956 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semi annual Summary Research Report in Physics for written by Ames Laboratory and published by . This book was released on 1956-07 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semi annual Summary Research Report in Chemistry for written by and published by . This book was released on 1956-07 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
