| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7ae24b0f4cb5472c055bbfcdef6c3942
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d63549724ab11902ffd6238a887354dd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d93502a23a72b56472bc75854cfe7c60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cc44bf531e8f0b2c7c1e529110823c19 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G7-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G7-08 |
| filingDate |
1998-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_29bf2e6e663115225b3e2f530a284b4b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7d679c5c94da35bf32316e941024257
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7993864937dc4dc14a07f7813eca3d20 |
| publicationDate |
1998-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9840448-A1 |
| titleOfInvention |
Process for preparing purified conjugated diene |
| abstract |
A process for preparing a purified conjugated diene involving the step of separating a conjugated diene from a petroleum fraction containing the diene by extractive distillation, characterized by: (1) using an amide compound as the extractant; (2) feeding the extractant having the water content adjusted to 50 to 1,000 ppm based on the extractant into an extractive distillation column; and (3) conducting extractive distillation of a petroleum fraction in the extractive distillation column. |
| priorityDate |
1997-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |