GB866522A - Preparation of diborane - Google Patents
Preparation of diboraneInfo
- Publication number
- GB866522A GB866522A GB20370/59A GB2037059A GB866522A GB 866522 A GB866522 A GB 866522A GB 20370/59 A GB20370/59 A GB 20370/59A GB 2037059 A GB2037059 A GB 2037059A GB 866522 A GB866522 A GB 866522A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bcl3
- metal
- bhcl2
- b2h5cl
- volatilised
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B6/00—Hydrides of metals including fully or partially hydrided metals, alloys or intermetallic compounds ; Compounds containing at least one metal-hydrogen bond, e.g. (GeH3)2S, SiH GeH; Monoborane or diborane; Addition complexes thereof
- C01B6/06—Hydrides of aluminium, gallium, indium, thallium, germanium, tin, lead, arsenic, antimony, bismuth or polonium; Monoborane; Diborane; Addition complexes thereof
- C01B6/10—Monoborane; Diborane; Addition complexes thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
Abstract
Diborane, or partially halogenated boron hydrides, are obtained by vapour phase reduction of a boron trihalide with H2 at elevated temperature in the presence of a Group IB metal in elemental form, e.g. Cu or Ag, BF3, BCl3, BBr3, or BI3, may be reacted with H2 at 250 DEG -950 DEG C. and atmos. up to 50 atms. pressure for 0.01-2.5 secs., in proportion 1-60 mole H2 per mole trihalide. H2 is bubbled through BCl3 and the resulting vapour mixture contacted with the metal which may be as little as 0.01% or a bed of granular metal. The volatile reaction products B2H5Cl, BHCl2, B2H6, and HCl are separated from H2 by condensation in a liquid N2-cooled trap at -196 DEG C. HCl is volatilised at -120 to -107 DEG C. and B2H6 is volatilised at 0 DEG C. under 2 atms., and as B2H6 is removed more BHCl2 and B2H5Cl is converted to B2H6. BCl3 may be recycled. Specification 864,253 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US866522XA | 1958-07-14 | 1958-07-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB866522A true GB866522A (en) | 1961-04-26 |
Family
ID=22199977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20370/59A Expired GB866522A (en) | 1958-07-14 | 1959-06-13 | Preparation of diborane |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB866522A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008008640A1 (en) | 2007-02-13 | 2008-08-14 | GM Global Technology Operations, Inc., Detroit | Process for the hydrogenation of BNH-containing compounds |
DE102010034682A1 (en) * | 2010-08-18 | 2012-02-23 | Technische Universität Bergakademie Freiberg | Preparing hydroborane comprises hydrogenating a boron compound in the presence of a hydrogenated catalyst, where the reactions are carried out in separate reaction chambers, which are connected over a gaseous phase |
-
1959
- 1959-06-13 GB GB20370/59A patent/GB866522A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008008640A1 (en) | 2007-02-13 | 2008-08-14 | GM Global Technology Operations, Inc., Detroit | Process for the hydrogenation of BNH-containing compounds |
DE102010034682A1 (en) * | 2010-08-18 | 2012-02-23 | Technische Universität Bergakademie Freiberg | Preparing hydroborane comprises hydrogenating a boron compound in the presence of a hydrogenated catalyst, where the reactions are carried out in separate reaction chambers, which are connected over a gaseous phase |
DE102010034682B4 (en) * | 2010-08-18 | 2014-07-31 | Technische Universität Bergakademie Freiberg | Process for the preparation of hydroboranes |
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