| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6a8e7b2c8216a44f40263abcd81fbfb4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_011e773a3b21737d887a6c7e81d99943 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C11-167
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-213
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-005 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-213 |
| filingDate |
2017-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d39ad3f37798e5f036c9878cec99333a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c20b9f10bf03e925d09f4f6ffb9a6f9d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc072bbab7b897b47348c531420db564
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea35f493d39713806e1a535c4df17523
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dea1646a399bfc5abbfd605f32031e45 |
| publicationDate |
2020-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10766846-B2 |
| titleOfInvention |
Method for producing and purifying 1,3-butadiene |
| abstract |
The invention relates to a method for producing butadiene that is fed with a butanediol feedstock, with said method comprising at least:n a) An esterification step comprising:n A reaction section; A separation section producing a butanediol diester effluent, a water effluent, and a carboxylic acid effluent; n b) An esterification pyrolysis step; c) A separation step comprising at least:n A cooling section producing a liquid pyrolysis effluent and a vapor pyrolysis effluent; A gas-liquid washing section that is fed at the top with a fraction of the carboxylic acid effluent that is obtained from the separation section of step a) and at the bottom with said vapor pyrolysis effluent and producing at the top a butadiene effluent and at the bottom a washing effluent; in which a carboxylic-acid-rich stream comprising at least a portion of the liquid pyrolysis effluent is recycled to step a); n d) A separation step. |
| priorityDate |
2016-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |