| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_17194390094dc447e51289931efb524c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_64d18d2b5f816667f604e6ae5d7f66b9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4b1aa2b8a570e7ceaa83e2a0eae6daea |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-573 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-573
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-56 |
| filingDate |
2012-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_218314e450700c763064786c9a96d768
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17e3f266f84d370fb09cf14b6aa3ab81 |
| publicationDate |
2013-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2013197267-A1 |
| titleOfInvention |
Processes for Preparing Acetic Anhydride |
| abstract |
In one embodiment, the invention is to a process for producing acetic anhydride. The process includes at least a step of carbonylating methanol and/or a methanol derivative with carbon monoxide to form acetic acid, and contacting ketene with the acetic acid to form a crude acetic anhydride product stream and a vent stream having unreacted ketene. The process further comprises a step of directing at least a portion of the vent stream to a liquid ring vacuum compressor having a ring seal fluid comprising acetic acid The unreacted ketene in the portion of the vent stream contacts the ring seal fluid to form supplemental acetic anhydride. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107001226-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10106485-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111333485-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2017204043-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107001230-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10550065-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2016087419-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108473410-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2732578-C2 |
| priorityDate |
2012-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |