GB774728A - Improvements in or relating to alkali metal borohydrides - Google Patents
Improvements in or relating to alkali metal borohydridesInfo
- Publication number
- GB774728A GB774728A GB73855A GB73855A GB774728A GB 774728 A GB774728 A GB 774728A GB 73855 A GB73855 A GB 73855A GB 73855 A GB73855 A GB 73855A GB 774728 A GB774728 A GB 774728A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boron
- hydrides
- alkali metal
- sodium
- dispersed
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
Abstract
Alkali metal borohydrides are produced by reacting at least one boron-containing reagent at elevated temperature under anhydrous conditions with one or more finely divided alkali metal hydrides dispersed in an inert liquid in which the borohydride produced is insoluble. The boron-containing reagents are boron trifluoride or trichloride, organic addition products of boron halides, methyl or ethyl borates, boric oxide, or sodium borofluoride. Alkali metal hydrides are hydrides of sodium, lithium, or potassium hydrides, or mixtures e.g. sodium and potasium hydrides. The hydride is dispersed by violent agitation in a high boiling liquid, e.g. mineral oil at 250-350 DEG C. and the dry boron reagent is added with continued agitation. The precipitate is filtered off and washed with petroleum ether, and the borohydride is extracted by liquid ammonia at -33 DEG C. and recovered by evaporating the ammonia. The reaction may be effected in an autoclave under superatmospheric pressure, e.g. 100-150 psig, and stearic acid may be added as catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB73855A GB774728A (en) | 1955-01-10 | 1955-01-10 | Improvements in or relating to alkali metal borohydrides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB73855A GB774728A (en) | 1955-01-10 | 1955-01-10 | Improvements in or relating to alkali metal borohydrides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB774728A true GB774728A (en) | 1957-05-15 |
Family
ID=9709653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB73855A Expired GB774728A (en) | 1955-01-10 | 1955-01-10 | Improvements in or relating to alkali metal borohydrides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB774728A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3047358A (en) * | 1956-10-27 | 1962-07-31 | Kali Chemie Ag | Preparation of boron-hydrogen compounds |
| US3151945A (en) * | 1958-02-03 | 1964-10-06 | Bayer Ag | Process for the production of pure borohydrides |
| US3459514A (en) * | 1964-10-01 | 1969-08-05 | Ethyl Corp | Method for preparing alkali metal borohydrides |
-
1955
- 1955-01-10 GB GB73855A patent/GB774728A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3047358A (en) * | 1956-10-27 | 1962-07-31 | Kali Chemie Ag | Preparation of boron-hydrogen compounds |
| US3151945A (en) * | 1958-02-03 | 1964-10-06 | Bayer Ag | Process for the production of pure borohydrides |
| US3459514A (en) * | 1964-10-01 | 1969-08-05 | Ethyl Corp | Method for preparing alkali metal borohydrides |
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