| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-215 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 |
| filingDate |
2008-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2009-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5136f469d8cfb807ca3cfc28f060439
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_29b94535235615e897271283bcbdf327
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d05e1dcabbbd3655fff4cbdb7769e8a1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e995d3a90b6fe7680e196277e82a03b6 |
| publicationDate |
2009-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7566804-B2 |
| titleOfInvention |
Process for preparing acrylic acid |
| abstract |
A process for preparing acrylic acid, in which an acrylic acid-comprising product gas mixture obtained by catalytic gas phase partial oxidation of a C 3 precursor of acrylic acid is fractionally condensed in a condensation column provided with internals ascending into itself with side draw removal of crude acrylic acid and with liquid phase draw removal of acrylic acid-comprising acid water, and acrylic acid present in acid water is taken up into an extractant and then removed from the extractant and recycled into the condensation column, or taken up in aqueous metal hydroxide, or sent to further purification of the crude acrylic acid. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10343969-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011036704-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10350539-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9701612-B2 |
| priorityDate |
2007-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |