http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0293483-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f6e960aa6ad2ba6401030159343ebe68 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1987-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee9acb6203feaf8ec78d649e8f2c6f88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f088d23159d10baea16e0ae8014bbca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e47c3ddda00a1fac481952ba77059a5d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37630e605181ffc53133bb8142b5888a |
| publicationDate | 1988-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0293483-A1 |
| titleOfInvention | Process for preparing anilines, catalyst therefor, and process for preparing the catalyst |
| abstract | The process for preparing anilines by reaction of phenols with an amination agent in accordance with the present invention is disclosed, which process is characterized by carrying out the reaction of phenols with an amination agent in the presence of a low alkali and weakly acidic alumina catalyst having the alkali oxide content of less than 0.5% by weight, said alumina catalyst being obtained by firing an alumina catalyst containing in a dry state more than 80% by weight of alumina and less than 20% by weight of silica at a temperature of 600-900°c, followed by acid treatment. According to the present invention, there are obtained such excellent effects that even when the reaction is carried out at a temperature lower than those employed in the case of conventionally well-known catalysts, the desired anilines can be prepared in high yields and high selectivity and, moreover, a high catalyst activity can be maintained over a long period of time. The alumina catalyst used in the present invention is characterized by having the alkali metal oxide content of less than 0.5% by weight and pKa of from -3.0 to + 6.8 as measured by Hammett's indicator, and containing in a dry state more than 80% by weight of alumina and less than 20% by weight of silica, and this catalyst is prepared by firing an alumina catalyst containing in a dry state more than 80% by weight of alumina and less than 20% by weight of silica at a temperature of 600-900°c., followed by acid treatment. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5091579-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5214210-A |
| priorityDate | 1986-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 198.