GB1155304A - Process for Preparing Borohydrides. - Google Patents
Process for Preparing Borohydrides.Info
- Publication number
- GB1155304A GB1155304A GB3921366A GB3921366A GB1155304A GB 1155304 A GB1155304 A GB 1155304A GB 3921366 A GB3921366 A GB 3921366A GB 3921366 A GB3921366 A GB 3921366A GB 1155304 A GB1155304 A GB 1155304A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- suspension
- fluoroborate
- potassium
- reaction
- 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)
- Lubricants (AREA)
- Control Of Position Or Direction (AREA)
- Cosmetics (AREA)
Abstract
1,155,304. Borohydrides. CESKOSLOVENSKA AKADEMIE VED. 2 Sept., 1966 [2 Sept., 1965; 9 July, 1966], No. 39213/66. Heading C1A In a process for perparing sodium or potassium borohydride by reaction of (a) sodium or potassium hydride with (b) sodium or potassium fluoroborate or trimethyl borate, a homogenized oil suspension of the finely divided reactants is formed into a flowable layer 0À1-40 mm. thick which is then heated to 250-350‹ C. preferably in a hydrogen or inert atmosphere the pressure of which is 1-10 atm. The solids concentration in the oil suspension is preferably 5-30 wt. per cent and the sodium or potassium hydride is preferably used in excess (e.g. 10 mol. per cent) of the stoichiometric amount. In one embodiment of the invention, the homogenized oil suspension is allowed to run as a film down the inner surface of a heated cylindrical reactor, the thickness of the film being controlled by axially mounted rotating blades. In another embodiment, the suspension is passed between two heated plates spaced at 0À5-40mm. The borohydride formed may be extracted from the resulting suspension or from the residue after separation of the oil therefrom, by means of an amine or liquid ammonia, the borohydride being recovered from the extract by spray drying. The process of the invention is applicable to the reaction of the hydride of one metal with the fluoroborate of the same or other metal, the latter case being illustrated by the reaction KBF 4 + 4NaH-#KBH 4 + 4NaF. Sodium fluoroborate. used in the above process may be purified before use by adjusting the pH of an aqueous solution thereof to less than 2.4 with hydrofluoric acid and then spray drying.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS539865 | 1965-09-02 | ||
| CS465466 | 1966-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1155304A true GB1155304A (en) | 1969-06-18 |
Family
ID=25746033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3921366A Expired GB1155304A (en) | 1965-09-02 | 1966-09-02 | Process for Preparing Borohydrides. |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT266787B (en) |
| BE (1) | BE686373A (en) |
| BR (1) | BR6682520D0 (en) |
| FR (1) | FR1503616A (en) |
| GB (1) | GB1155304A (en) |
| NL (1) | NL6612155A (en) |
| NO (1) | NO116035B (en) |
| SE (1) | SE329149B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340699A (en) * | 2020-11-02 | 2021-02-09 | 天津大学 | Potassium borohydride spherical crystal and preparation method thereof |
| CN117228681A (en) * | 2023-09-26 | 2023-12-15 | 衡阳市东氟新材料股份有限公司 | Preparation method of potassium fluoborate |
-
1966
- 1966-08-12 NO NO16428566A patent/NO116035B/no unknown
- 1966-08-12 AT AT773166A patent/AT266787B/en active
- 1966-08-29 NL NL6612155A patent/NL6612155A/xx unknown
- 1966-08-31 SE SE1173066A patent/SE329149B/xx unknown
- 1966-08-31 FR FR74744A patent/FR1503616A/en not_active Expired
- 1966-08-31 BR BR18252066A patent/BR6682520D0/en unknown
- 1966-09-02 GB GB3921366A patent/GB1155304A/en not_active Expired
- 1966-09-02 BE BE686373D patent/BE686373A/xx unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340699A (en) * | 2020-11-02 | 2021-02-09 | 天津大学 | Potassium borohydride spherical crystal and preparation method thereof |
| CN112340699B (en) * | 2020-11-02 | 2022-07-19 | 天津大学 | Potassium borohydride spherical crystal and preparation method thereof |
| CN117228681A (en) * | 2023-09-26 | 2023-12-15 | 衡阳市东氟新材料股份有限公司 | Preparation method of potassium fluoborate |
| CN117228681B (en) * | 2023-09-26 | 2024-02-23 | 衡阳市东氟新材料股份有限公司 | Preparation method of potassium fluoborate |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1567421B2 (en) | 1973-02-01 |
| DE1567421A1 (en) | 1970-04-16 |
| BE686373A (en) | 1967-03-02 |
| SE329149B (en) | 1970-10-05 |
| NO116035B (en) | 1969-01-20 |
| AT266787B (en) | 1968-11-25 |
| NL6612155A (en) | 1967-03-03 |
| BR6682520D0 (en) | 1973-04-05 |
| FR1503616A (en) | 1967-12-01 |
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