| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13880c142d76aac26a8ce24d6c12b878
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bc8aefc289a8d59f22ef88e19b3c1a8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_01912a539e52225cb5b4738b3d6df68d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b15ef074098f10d78710eca3541648a0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-033
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-036
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-50 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-00 |
| filingDate |
2009-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2013-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ad8ab94de70011b73dd164a2e8592ef
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05b6309b89c05b43b1ed120d19fbdb00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54eb99035d8a25f0605897c779c38933 |
| publicationDate |
2013-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8558027-B2 |
| titleOfInvention |
Production of mixtures of methylenedianiline and its higher homologues using calcined metal oxide-silica catalysts |
| abstract |
The present disclosure relates to compositions, systems, and methods of forming an amine (e.g., methylenedianiline (MDA)) using an acid catalyst including, for example, a metal oxide-silica catalyst calcined at temperature(s) of about >=500° C. to form a solid acid silica-metal oxide catalyst. A metal oxide of a solid acid silica-metal oxide catalyst may comprise alumina. A process for making a solid acid silica-metal oxide catalyst may comprise calcining an amorphous alumina-silica material at temperature(s) of about >=500° C. and/or under an anhydrous and/or inert atmosphere. A rearrangement reaction of the condensation product of aniline and formaldehyde in the presence of a solid acid silica-metal oxide catalyst may yield more MDA and/or more desirable isomer(s) of MDA than reactions performed with a corresponding catalyst calcined at temperature(s) of less than 500° C. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10538480-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10239984-B2 |
| priorityDate |
2008-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |