| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_910b2c2c248c55c9f6c36007b447ad2c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1019
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-108
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1061 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G45-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G45-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G45-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G45-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J32-00 |
| filingDate |
1986-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1989-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03a0972af20c1cfd0db6ec2c677b0264 |
| publicationDate |
1989-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1256851-A |
| titleOfInvention |
Process for producing narrow-pore catalyst supports |
| abstract |
A B S T R A C T PROCESS FOR PRODUCING NARROW-PORE CATALYST SUPPORTS A process for the preparation of narrow-pore alumina supports having surface areas above 300 m2/g, at least 80% of the pore diameters less than 5 nm, a crush strength greater than 88 N and containing an amount of phosphorus in the range from 0.1% to 4.5% by weight, which process comprises: a) precipitating an acid aluminium salt in an aqueous solution in the presence of a phosphorus-containing compound by contact with a basic aluminium compound, b) aging the precipitate at a temperature in the range between 20 °C and 90 °C for at least 15 minutes at a pH in the range between 9.0 to 11.0, c) washing the precipitate, d) drying the precipitate, and e) calcining the precipitate at a temperature ranging from 300 °C to 900 °C. |
| priorityDate |
1985-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |