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beryllium fluoride

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230093
EISBN: 978-1-62708-298-3
...Abstract Abstract This chapter reviews the basic chemistry of beryllium metals and compounds, including beryllium hydroxide, beryllium carbonates, beryllium fluoride, and beryllium chloride. It discusses the uses as well as application challenges of various forms of beryllium and includes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230071
EISBN: 978-1-62708-298-3
...Abstract Abstract This chapter describes some of the chemical processes that have been developed to extract beryllium from different types of ore. It covers the Kjellgren-Sawyer sulfate method, the Degussa method, Copaux-Kawecki fluoride extraction, solvent extraction, and leaching and settling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230117
EISBN: 978-1-62708-298-3
... Moeller T. , 1957 . Inorganic Synthesis , 3rd ed. , McGraw-Hill, NY 10.1002/9780470132364 Novoselova A.V. , 1959 . Beryllium Fluorides and Fluoroberyllates , Usp. Khim. , Vol 28 , p 33 – 43 Novoselova A.V. , and Levina M.E. , 1938 . Zh. Obshchei. Khim. , Vol 8...
Book Chapter

By Kenneth A. Walsh
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230001
EISBN: 978-1-62708-298-3
... fluoride fused salt electrolysis process is suggested for the production of beryllium on similar principles but with an added advantage of a semicontinuous high-efficiency process. A beryllium fluoride-lithium fluoride fused salt electrolysis at 700 °C is proposed, using theoretical considerations where...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230007
EISBN: 978-1-62708-298-3
... an electrolyte of fused beryllium fluoride and sodium fluoride and liberated beryllium metal. In 1913, Flichter in Germany used Lebeau’s method to obtain the first manipulatable quantity of pure (98 wt%) beryllium. In Germany, Oesterheld published the equilibrium diagrams of beryllium-copper, beryllium-aluminum...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230523
EISBN: 978-1-62708-298-3
... – 678 Derham L.J. , and Temple D.A. , 1957 . “ Preparation of Beryllium Metal by Thermal Reduction of the Fluoride ,” Symposium on Extraction Metallurgy of Some of the Less Common Metals ( London ), Institute of Mining and Metallurgy Deubner D.C. , Lowney Y.W...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.9781627082983
EISBN: 978-1-62708-298-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230179
EISBN: 978-1-62708-298-3
... in the other has an important practical consequence, because magnesium is used to reduce beryllium fluoride in the commercial process for producing beryllium metal. The only intermediate phase, MgBe 13 , decomposes at approximately 950 °C (1740 °F). Fig. 15.13 Binary phase diagram of beryllium-magnesium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230107
EISBN: 978-1-62708-298-3
..., at a pH of 8.5. This precipitation requires the absence of fluoride, silica, phosphate, and organic matters. Beryllium can be separated from aluminum using 8-hydroxyquinoline. Aluminum is precipitated from an acetate-buffered acetic acid solution of pH 5.7. Iron and titanium can be precipitated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230065
EISBN: 978-1-62708-298-3
...Abstract Abstract This chapter describes some of the processes used to concentrate beryllium-rich minerals from ores. It discusses the flotation of bertrandite and phenacite from calcite, mica, fluorspar, and quartz-containing ores, the flotation of beryl from pegmatitic gangues and low-grade...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230055
EISBN: 978-1-62708-298-3
... and Burke 1955 In Fig. 5.1 through 5.3 , the standard free energy of formation of a number of oxides, fluorides, and chlorides, respectively, is plotted as a function of temperature. The values for the beryllium compounds were taken from the equations in Table 5.2 , whereas the values...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
.... Source: Marder et al. 1990 Briefly, the beryllium ores are chemically processed into beryllium hydroxide, which is then converted into beryllium fluoride. The fluoride is then made to react with magnesium in a high-temperature furnace, forming beryllium fluoride and beryllium “pebbles” (roughly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230493
EISBN: 978-1-62708-298-3
...Abstract Abstract This chapter describes a process for recovering beryllium from industrial waste associated with beryllium-copper production. It presents several detailed flowsheets along with typical operating parameters such as flow rates, chemical concentrations, particle sizes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230361
EISBN: 978-1-62708-298-3
... References • O’Donnell P.M. , 1967 . Beryllium Fluoride Coating as a Corrosion Retardant for Beryllium , J. Corros. Sci. , Vol 7 , p 717 – 718 10.1016/S0010-938X(67)80013-1 • Palatnik L.S. , and Fedorenko A.I. , 1964 . Investigation of Condensed Beryllium Thin Films , Fiz...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550193
EISBN: 978-1-62708-307-2
...Abstract Abstract Beryllium is an extraordinary metal with an unusual combination of physical and mechanical properties. It has low density, high stiffness, and excellent dimensional stability. It is also transparent to x-rays and can be machined to extremely close tolerances. This chapter...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730001
EISBN: 978-1-62708-283-9
... Among the metals that crystallize in the hexagonal close packed structure are beryllium, magnesium, zinc, cadmium, and both titanium and zirconium at room temperature. Aside from the three crystal structures (fcc, bcc, hcp), certain elements, including carbon, silicon, and germanium, crystallize...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230499
EISBN: 978-1-62708-298-3
..., and as catalysts for certain chemical reactions are sulfates, chlorides, and fluorides. Occupational exposure to beryllium occurs in nuclear-related activities; in aerospace, automotive, electronics, ceramic, and telecommunication industries; in the manufacturing of some sporting equipment (e.g., golf and bicycles...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230459
EISBN: 978-1-62708-298-3
...Abstract Abstract This chapter covers the corrosion behavior of beryllium in aqueous environments. It describes the chemical reactions that drive the corrosion process, the conditions required for equilibrium, and the factors that affect corrosion resistance. It discusses the stability...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230401
EISBN: 978-1-62708-298-3
.... Fluxes are used to protect the parts and brazing filler metal, except where an atmosphere of reducing or inert gases is used for the same function. A mixture of either stannous chloride or 60 wt% lithium fluoride and 40 wt% lithium chloride is a suitable flux for furnace or induction brazing. Beryllium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060073
EISBN: 978-1-62708-261-7
... Fluorides CaF 2 Halides NaCl, KCl, AgCl, KCl · MgCl 2 · 6H 2 O, NaCl and MgCl 2 in sea water Native metals Cu, Ag, Au, As, Sb, Bi, Pt (Os, Ir, Pd), Mn (nodules on ocean floor) Oxides Al 2 O 3 , Fe 2 O 3 , Fe 3 O 4 , SnO 2 , MnO 2 , TiO 2 , FeO · Cr 2 O 3 , FeO · WO 3 , Cu 2 O, ZnO, ThO 2...