http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1086707-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fd160b48bd4cc483cafd142249836250 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2529-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2529-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2529-65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2-864 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C5-41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C4-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-65 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C5-41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C4-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-00 |
| filingDate | 1977-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1980-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c2d94ecf7c1ffda9bcd0ef914abda06f |
| publicationDate | 1980-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1086707-A |
| titleOfInvention | Catalyst and process for selective production of para dialkyl substituted benzenes |
| abstract | ABSTRACT OF THE DISCLOSURE A catalyst particularly applicable for the selective production of para dialkyl substituted benzenes is provided comprising a porous crystalline aluminosilicate zeolite which has undergone modification by deposition thereon of a coating of silica extensively covering, and residing substantially exclusively on the external surface thereof as a result of contact with a silicone compound of a molecular size incapable of entering the pores of the zeolite and subsequent heating in an oxygen-containing atmosphere to a temperature in excess of 300°C. but below a temperature at which crystallinity of the zeolite is adversely affected at a rate such that the silicone compound does not volatilize prior to undergoing oxidation to silica. The zeolite is characterized by an activity, in terms of alpha value, of between about 2 and about 5000, a xylene sorption capac-ity greater than 1 gram/100 grams of zeolite and an ortho-xylene sorption time of 30 percent of said capacity of greater than 10 minutes, said sorption capacity and sorption time being measured at 120°C. and a xylene pressure of 4.5 ? 0.8 mm. of mercury. There is also provided a process for the selective production of para dialkyl substituted benzenes containing alkyl groups of 1 to 4 carbon atoms, typified by para-xylene, by contacting, under conversion conditions, a hydrocarbon precursor selected from the group consisting of mono alkyl-sub-stituted benzes having 1-4 carbon atoms in the alkyl substi-tuent, e.g. toluene, ethyl benzene, propyl benzene or butyl benzene and a mixture of said precursor or benzene with an alkylating agent containing from 1 to 4 carbon atoms with the above catalyst and recovering from the resulting product mixture, a para dialkyl substituted benzene in an amount greater than the thermodynamic equilibrium concentration thereof in the total dialkyl substituted benzenes produced. |
| priorityDate | 1976-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 126.