http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20010101742-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e553651f1e0d23e577550d5e2b0623e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2523-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-198 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-192 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0018 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-188 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-198 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-192 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-188 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 2000-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b372f19aa12b2702bfde799ac6bb5ce |
| publicationDate | 2001-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20010101742-A |
| titleOfInvention | Phosphorus/vanadium maleic anhydride catalyst preparation |
| abstract | The present invention relates to a VPO catalyst precursor represented by Formula 1, wherein the precursor is heated to a temperature not exceeding about 300 ° C. under an atmosphere selected from the group consisting of air, steam, inert gas, and mixtures thereof. Maintaining the catalyst precursor at this temperature and providing molecular oxygen, vapor and optionally an inert gas; Increasing the temperature at a predetermined rate of about 0.5 ° C./min to about 15 ° C./min to a value effective to remove water of the hydration reaction from the catalyst precursor; Adjusting the temperature to a value of at least 350 ° C. and less than 550 ° C .; And adjusting in a molecular oxygen / vapor containing atmosphere which provides a vanadium oxidation state of about +4.0 to about +4.5 and comprises at least 1% by volume of oxygen for a time effective to complete the conversion to the active catalyst represented by formula (2). It is activated by the step of maintaining the temperature.n n n n Formula 1n n n n (VO) HPO 4 aH 2 OM m P p O y n n n n Formula 2n n n n (VO) 2 P 2 O 7 M 2m P 2p O y n n n Wherein M is at least one promoter element selected from the group consisting of elements from groups IA, IB, IIA, IIB, IIIA, IIIB, IVA, IVB, VA, VB, VIA, VIB and VIIIA of the Periodic Table of the Elements and Mixtures thereof, a is a number of at least about 0.3, m is a number from about 0 to about 0.3, p is a number from about 0 to about 0.3, and y is the oxygen required to satisfy the equilibrium requirements of all the elements present. Corresponds to the amount. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101013917-B1 |
| priorityDate | 1999-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 94.