| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e31a7bcbf6b7edcaf10cca6f5400387f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2529-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-26 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C6-126
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7415 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C6-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B39-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B39-02 |
| filingDate |
1998-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2003-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6accde09cd12a8d7afca36bad2929cd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f83b6308a6319b464fe31dae569b5970 |
| publicationDate |
2003-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0940178-B1 |
| titleOfInvention |
Aromatic alkylation with a catalyst containing a surface-modified zeolite beta |
| abstract |
There is disclosed a new form of a zeolite beta catalyst which shows substantially greater stability and greater catalyst lifetime when used in the alkylation and transalkylation of aromatic compounds. The new, surface-modified zeolite beta is characterized by having surface aluminum 2p binding energies as measured by X-ray photoelectron spectroscopy, of a least 74.8 electron volts. This surface-modified zeolite beta is prepared by treating a templated zeolite beta with an acid at a pH between 0 and 2 and a temperature up to 125 DEG C for a time sufficient to modify the chemical environment of the surface aluminum atom without bringing about dealumination of the zeolite beta. |
| priorityDate |
1996-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |