| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2521-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-36 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C11-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C11-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C6-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C6-04 |
| filingDate |
2003-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d36169dac41b2e8a5b8b14870484e9bf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c28e21bf758e618438c9511697ceaa95 |
| publicationDate |
2004-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2004077909-A1 |
| titleOfInvention |
Process for selective production of propylene from hydrocarbon fractions with four carbon atoms |
| abstract |
For the selective production of propylene from an olefinic C 4 fraction, a process is implemented that successively comprises: n 1) the selective hydrogenation of butadiene with isomerization of butene-1 into butene-2; n 2) the separation by distillation of a mixture that is rich in isobutene and butene-1 at the top and a fraction that is rich in butene-2 at the bottom; n 3) the skeletal isomerization of isobutene into n-butenes on the top fraction, with recycling in stage 1; and n 4) the metathesis of the butene-2-rich fraction with ethylene. n The advantage of this process is to produce in a very selective way polymerization-quality propylene from all of the olefinic compounds of a C 4 fraction, including isobutene. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008088453-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005110951-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008088453-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101492334-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011040134-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008312481-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8933284-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008153643-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8178737-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111073691-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8293960-B2 |
| priorityDate |
1999-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |