| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_30676b8771a7a6cd3c658fd0a3e0a4b1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c611be0ff14ac9d507194d0787dbfb11 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-146
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-79
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-83 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-79
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-83
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-80 |
| filingDate |
1995-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e639485bb7f9be12d1a361e6cbfdbbb0 |
| publicationDate |
1997-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9712654-A1 |
| titleOfInvention |
Method for recovering acetone |
| abstract |
A process for recovering substantially pure acetone from a crude acetone stream which includes the steps of: 1) a topping operation to remove lights via conduit (9) such as isobutylene and propylene oxides in topping tower (1); 2) an acid resin treatment to remove in reactor (23) epoxides via conduit (27) such as isobutylene oxide and 1,2-epoxy butylene; 3) a caustic reactive distillation in tower (29) to remove aldehydes such as isobutyraldehyde and butyraldehyde; 4) a water dissolution to remove alkanes in separator (51) such as 2,2,4-trimethyl-pentane; 5) an extractive distillation with water to separate acetone from methanol in tower (5); and 6) a one step glycol extractive distillation in tower (73) to remove traces of water to attain a commercial grade acetone which meets the following specifications: 99.5 % acetone, a permanganate time of greater than 30 minutes, a hydrocarbon content of less than 100 ppm, and less than 0.5 % water. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2016061262-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113735697-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104245655-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8710274-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107250086-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20150013566-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10633320-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10351487-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10358406-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019006143-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101662927-B1 |
| priorityDate |
1995-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |