Low-Temperature Synthesis of Actinide Tetraborides by Solid-State Metathesis Reactions

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Description

The synthesis of actinide tetraborides including uranium tetraboride (UB,), plutonium tetraboride (PUB,) and thorium tetraboride (ThB{sub 4}) by a solid-state metathesis reaction are demonstrated. The present method significantly lowers the temperature required to {approx_equal}850 C. As an example, when UCl{sub 4}, is reacted with an excess of MgB{sub 2}, at 850 C, crystalline UB, is formed. Powder X-ray diffraction and ICP-AES data support the reduction of UCl{sub 3}, as the initial step in the reaction. The UB, product is purified by washing water and drying.

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863 Kilobytes pages

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Lupinetti, Anthony J.; Garcia, Eduardo & Abney, Kent D. December 14, 2004.

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This patent is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 20 times . More information about this patent can be viewed below.

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Description

The synthesis of actinide tetraborides including uranium tetraboride (UB,), plutonium tetraboride (PUB,) and thorium tetraboride (ThB{sub 4}) by a solid-state metathesis reaction are demonstrated. The present method significantly lowers the temperature required to {approx_equal}850 C. As an example, when UCl{sub 4}, is reacted with an excess of MgB{sub 2}, at 850 C, crystalline UB, is formed. Powder X-ray diffraction and ICP-AES data support the reduction of UCl{sub 3}, as the initial step in the reaction. The UB, product is purified by washing water and drying.

Physical Description

863 Kilobytes pages

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U.S. Patent and Trademark Office, www.uspto.gov; OSTI as DE00835121

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  • Other Information: PBD: 14 Dec 2004

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  • Report No.: PATENTS-US-A6830738
  • Office of Scientific & Technical Information Report Number: 835121
  • Archival Resource Key: ark:/67531/metadc777291

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Office of Scientific & Technical Information Technical Reports

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  • December 14, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • Jan. 23, 2018, 2:27 p.m.

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Lupinetti, Anthony J.; Garcia, Eduardo & Abney, Kent D. Low-Temperature Synthesis of Actinide Tetraborides by Solid-State Metathesis Reactions, patent, December 14, 2004; (digital.library.unt.edu/ark:/67531/metadc777291/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.