http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1111727-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2dbb2d7ecbd600cf89fbdd230f4a466c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H19-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B6-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B6-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H19-20 |
| filingDate | 1966-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1968-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1111727-A |
| titleOfInvention | Process for the preparation of alkali metal borohydrides |
| abstract | An alkali metal borohydride is produced by heating, under anhydrous conditions, stoichiometric amounts of an alkali metal hydride, or alkali metal and hydrogen, and an alkali metal tetraborate, as sole reactants. The reactants are preferably heated in an atmosphere of H2 at 2-10 cm. Hg gauge, with intimate mixing, to 350-450 DEG C. for Na, 400-410 DEG C. for K, or 200-300 DEG C. for Li. When using alkali metal as reactant, the mixture, e.g. of Na and borax, is initially heated in H2 at 100-340 DEG C. until no further H2 is absorbed, the corresponding temperatures being 160-270 DEG C. for K, and 200-265 DEG C. for Li. The process may be operated continuously or batchwise. The product is extracted with liquid NH3 or isopropylamine, and the solution evaporated. By-product metaborate may be converted to tetraborate by adding boric acid, and re-used. |
| priorityDate | 1965-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.