| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f6e960aa6ad2ba6401030159343ebe68 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-86 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B63-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-04 |
| filingDate |
1993-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b52c3469a245e648edc410eb071b5da
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51a883ecf5c7735d595659b05866e118 |
| publicationDate |
1993-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2093284-A1 |
| titleOfInvention |
Process for producing highly pure phenol |
| abstract |
ABSTRACT A process for producing a highly pure phenol, in which a crude phenol obtained from an acid-decomposition product of cumene hydroperoxide and having an .alpha.-methylstyrene content of 15 % by weight or less is catalytically treated with an acidic ? -alumina catalyst having a specific surface area of 80 to 400 m2/g and an acid strength, according to Hammett's acidity function (Ho), of 3?Ho?6.8 to convert aliphatic and aromatic carbonyl compounds contained in the crude phenol into high-boiling compounds without causing the substantial formation of a dimer of .alpha.-methylstyrene contained in the crude phenol, and then, a phenol and the so-formed high-boiling compounds were separated by distillation. |
| priorityDate |
1992-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |