| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a4a79e7a430c13bb7100c57192b1948d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-38 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-052 |
| filingDate |
2003-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2005-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c19360bf5f175a2df013393c6df4054
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_595d88a5275c8014d2d0e3f5a449d2f6 |
| publicationDate |
2005-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6930072-B2 |
| titleOfInvention |
Vanadia-titania metal molybdate dual catalyst bed system and process using the same for methanol oxidation to formaldehyde |
| abstract |
A process and a catalyst reaction zone comprising one or more fixed bed reactors for oxidizing methanol in a reactant gas feed stream to formaldehyde. According to one embodiment, the process comprises introducing the reactant gas feed stream into an upstream region containing a vanadia-titania first catalyst (substantially free of a volatile MoO 3 species) under oxidizing conditions to form a partially oxidized reactant gas feed stream which is then introduced under oxidizing conditions into a downstream region containing a metal molybdate second catalyst to further oxidize any residual methanol contained therein. According to another embodiment, a fixed bed reactor comprising an upstream region and a downstream region containing the aforementioned vanadia-titania and metal molybdate catalysts, respectively, is utilized to implement the inventive process to yield a product gas stream containing formaldehyde preferably at a conversion of 85% or more and a selectivity of 90% or more. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9278330-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9574122-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7572752-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008247917-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009253941-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006142619-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8663567-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010267993-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8852518-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011189049-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7304187-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005137082-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007081933-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7745667-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7413715-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010258428-A1 |
| priorityDate |
2000-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |