| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_752f65bd05fc861a475cf4d486e0bda9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_61532ea96267370dfcd2cc2251f0cdab
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_18e7f039a9e2ea7f29827480f081ec5a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_93e5035a204d1bc853a84a0ed54a341b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-72 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-26 |
| filingDate |
2004-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b023bdba1991f0707dd24b975c7d9818
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f34b393e0b36d9aeafd8333dfba1d748
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be51fa9bf8a6d1805d847fdeb5e31e4f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_538c21305f4019b1b39234b406df3791 |
| publicationDate |
2006-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2006047173-A1 |
| titleOfInvention |
Hydrogenation of methylenedianiline |
| abstract |
The invention is directed to an improvement in a catalytic process for the ring hydrogenation of a methylenedianiline feedstock, including crude methylenedianiline. One component of the improvement is a pretreatment process which resides in passing the crude methylenedianiline feedstock over a ruthenium catalyst carried on a fixed bed support, cooling without venting, and then hydrogenation of the pretreated crude methylenedianiline feedstock over a rhodium catalyst or a mixed Rh/Ru catalyst carried on a monolith support and carrying out the ring hydrogenation in a batch reaction. Another component in the improvement is the employment of a catalyst comprised of rhodium and ruthenium carried on a monolith support. |
| priorityDate |
2004-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |