| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bf83bbe44f79fbf082208f79f52bc05e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-53
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-53
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C5-327
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-08 |
| filingDate |
2002-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_105ad37be590774e050be64ee88f4e94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7af9f148aa7664a87bb0a8eb55529126
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8846ad3e7ce9227ffde998606db6d746
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_207dec408b9b2a4bc51b696b9e53a097
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d24b543c4c08fe68415362721dc24b26 |
| publicationDate |
2005-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1523466-A1 |
| titleOfInvention |
Decomposition of cumene oxidation product |
| abstract |
A process for decomposing a cumene oxidation product mixture containing cumene hydroperoxide (CHP) and dimethylphenyl carbinol (DMPC) to produce phenol, acetone and alpha-methyl styrene (AMS) with enhanced safety of operation and reduced by-product formation which comprises the steps: mixing the cumene oxidation product in a stirred or back-mixed reactor with an acid catalyst, with 10 to 100 percent acetone relative to the amount of acetone produced during the decomposition reaction, and with up to 4 weight percent additional amounts of water relative to the reaction mixture, at an average temperature between about 50°C and about 90°C for a time sufficient to lower the average CHP concentration of the reactor to between about 0.2 and about 3.0 weight percent, and wherein a portion of DMPC is converted to dicumyl peroxide (DCP); then reacting the reaction mixture from step (a) at a temperature between about 120°C and 150°C under plug-flow conditions for a time sufficient to decompose substantially all residual CHP and at least 90 percent of the DCP formed in step (a). |
| priorityDate |
2002-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |