http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03199120-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0eebd55ddff9adc9a8712fa241e08b6c |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-622 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B38-00 |
| filingDate | 1989-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76363d0cd19d27a5680d24b441e3d46b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc45272bea7d79bc2fb0e5fba74a35a2 |
| publicationDate | 1991-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H03199120-A |
| titleOfInvention | Production of alumina-based porous gel |
| abstract | PURPOSE: To produce the gel capable of maintaining a large specific surface even at a high temp. appropriate for a high-temp. catalyst carrier by mixing an aluminum alkoxide and a specified compd. to obtain an alumina-based precursor, hydrolyzing and gelling the precursor and supercritically drying the product. n CONSTITUTION: An aluminum alkoxide expressed by (RO) 3 Al (R is alkyls) and 0.1-5mols, based on the alkoxide, of ≥1 kind among alkanolamines (e.g. diethanolamine, etc.) and the esters of β-ketonic acids (e.g. ethyl acetoacetate) and β-diketonic compd. (e.g. acetylacetone, etc.) to form an alumina-based precursor. The precursor is hydrolyzed and gelled with 0.5-2mols of water, based on the reactive group in the precursor capable of being hydrolyzed, in the presence of a basic catalyst (e.g. pyridine, etc.), as required, and the obtained gel is dried via the supercritical state of the org. solvent constituting the greater part of the liq. in the gel or the mixed system contg. the solvent. Consequently, the gel capable of maintaining the large specific surface even at a high temp. appropriate for a high-temp. catalyst carrier is obtained. n COPYRIGHT: (C)1991,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2650944-C1 |
| priorityDate | 1989-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.