http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-714982-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14effe3850d2129f863b969dac4f1db8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-72 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-14 |
| filingDate | 1952-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1954-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-714982-A |
| titleOfInvention | Recovery of beta-naphthol |
| abstract | Beta-naphthol is separated from mixtures containing it and beta-dialkylmethylnaphthalenes, such as are obtainable by the cleavage of hydroperoxides, by treating the mixture with a two-phase solvent consisting of a polar solvent for beta-naphthol mixed with a paraffin hydrocarbon. The layers are separated and the lower-boiling polar solvent distilled off. In an example, a continuous process for the separation with a mixture of methanol and paraffin naphtha of boiling range 100 DEG below that of the b -naphthol mixture containing isopropyl-naphthalene, in counter-current, is described; similar separations using a mixture containing b - sec. - butylnaphthalene solvent mixtures containing cyclohexane, methyl cyclohexane, ethanol, ethylene glycol, b -b 1-oxydipropionitrile, nitromethane, aqueous methylamine and ethanolamine and single-stage extractions are also referred to. Non-phenolic constituents are recovered from the hydrocarbon phase. |
| priorityDate | 1952-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.