http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2370313-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e86ce1f5564e8a1d94d55311afddc4aa |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2523-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-198 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0219 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-313 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-198 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-22 |
| filingDate | 2005-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2009-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4931cc2bace70c5507f4b5152f030534 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db62193c14471c37c14cf58f9cc58606 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acb1f574aef7593e67c3ff11758f104f |
| publicationDate | 2009-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2370313-C2 |
| titleOfInvention | Multilayer catalyst for producing phthalic acid anhydride |
| abstract | FIELD: chemistry. n SUBSTANCE: present invention relates to a catalyst for producing phthalic acid anhydride by gas phase oxidation of o-xylol and/or naphthalene, with the said catalyst containing at least three catalyst layers with different compositions, which are designated in order, starting from the gas inlet side to the gas outlet side, as the first, second and third catalyst layers. Said catalyst layers respectively contain an active material containing TiO 2 with Na content less than 0.3 wt %, and the active material content reduces from the first catalyst layer facing the gas inlet side to the third catalyst layer facing the gas outlet side, with the proviso that (a) the first catalyst layer comprises an active material content of between approximately 7 and 12 wt %, (b) the second catalyst layer comprises an active material content ranging between 6 and 11 wt %, the active material content of the second catalyst layer being less than or equal to the active material content of the first catalyst layer and (c) the third catalyst layer comprises an active material content ranging between 5 and 10 wt %, the active material content of the third catalyst layer being less than or equal to the active material content of the second catalyst layer. A method is described fro producing phthalic acid anhydride by gas phase oxidation of o-xylol and/or naphthalene using the catalyst described above. n EFFECT: high output of phthalic acid anhydride. n 34 cl, 3 tbl, 13 ex |
| priorityDate | 2005-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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