GB957048A - Process for recovering sodium borohydride from a suspension thereof with sodium methylate in petroleum oil - Google Patents
Process for recovering sodium borohydride from a suspension thereof with sodium methylate in petroleum oilInfo
- Publication number
- GB957048A GB957048A GB2580660A GB2580660A GB957048A GB 957048 A GB957048 A GB 957048A GB 2580660 A GB2580660 A GB 2580660A GB 2580660 A GB2580660 A GB 2580660A GB 957048 A GB957048 A GB 957048A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nabh4
- suspension
- methanol
- aqueous
- recovered
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Sodium borohydride, NaBH4, is recovered from a suspension thereof with sodium methylate in petroleum oil by extracting with water, separating the aqueous phase containing NaBH4, NaOH, and methanol, removing methanol therefrom, and recovering NaBH4 from the residue. The suspension is prepared by reacting NaH and trimethyl borate in suspension in a petroleum oil at 250-280 DEG C. under atmospheric pressure. The suspension is extracted with H2O at 20-60 DEG C., and the aqueous-alcoholic solution of NaBH4 and NaOH is separated by decantation or centrifuging, the oil being recycled. The methanol is recovered by fractional distillation preferably under vacuum, and the methanol may be reacted with boric acid to form trimethyl borate which is returned to the process. The aqueous NaBH4 and NaOH solution from the distillation is evaporated preferably under vacuum to a syrupy consistency, and evaporated to dryness at atmospheric pressure. The NaBH4 is extracted from the solid residue by non-aqueous solvent, e.g. ethylene diamine, liquid ammonia, isopropylamine, dimethylformamide, n-propylamine, n-butylamine, or dimethyl sulphoxide, and the resulting solution filtered and evaporated to dryness. The solvent may be recovered and recycled.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1293559 | 1959-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB957048A true GB957048A (en) | 1964-05-06 |
Family
ID=11143850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2580660A Expired GB957048A (en) | 1959-07-30 | 1960-07-25 | Process for recovering sodium borohydride from a suspension thereof with sodium methylate in petroleum oil |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB957048A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7914670B2 (en) | 2004-01-09 | 2011-03-29 | Suncor Energy Inc. | Bituminous froth inline steam injection processing |
| CN104370781A (en) * | 2014-10-31 | 2015-02-25 | 瓮福（集团）有限责任公司 | Method for removing sodium nitrite out of waste dimethyl sulfoxide salt by using composite oxidizing agent |
-
1960
- 1960-07-25 GB GB2580660A patent/GB957048A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7914670B2 (en) | 2004-01-09 | 2011-03-29 | Suncor Energy Inc. | Bituminous froth inline steam injection processing |
| US8685210B2 (en) | 2004-01-09 | 2014-04-01 | Suncor Energy Inc. | Bituminous froth inline steam injection processing |
| CN104370781A (en) * | 2014-10-31 | 2015-02-25 | 瓮福（集团）有限责任公司 | Method for removing sodium nitrite out of waste dimethyl sulfoxide salt by using composite oxidizing agent |
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