http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005082159-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D303-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-19 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D303-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-19 |
| filingDate | 2003-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_abf9d92a88a4eda9d10f91d22868d781 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05951ce441e9a315ebb58f70a66c0e88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9615703badb43b5d4f503209ad268533 |
| publicationDate | 2005-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2005082159-A1 |
| titleOfInvention | Process for purification propylene oxide |
| abstract | A process for purifying propylene oxide, which comprises using a liquid reaction mixture containing propylene oxide, and water, hydrocarbons and oxygen-containing organic compounds as impurities obtained by reacting cumene hydroperoxide with propylene, as a liquid raw material, and separating and recovering propylene oxide from the liquid raw material, wherein the process comprises the following steps: first step; a step of subjecting the liquid raw material to extractive distillation using a hydrocarbon of 7 to 10 carbons as an extractant to separate into the overhead stream containing most of water and the oxygen-containing impurities and the bottom stream containing propylene oxide, the hydrocarbons and the extractant, second step; a step of subjecting the bottom stream to extractive distillation using a hydrocarbon of 7 to 10 carbons as an extractant to separate into the overhead containing propylene oxide and the bottom stream containing hydrocarbons and the extractant, and third step; subjecting the extractant used in the first step and/or second step to distillation to purify the extractant, wherein the bottom temperature of the distillation column or extractive distillation column in each of the steps is 130° C. or lower. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8481764-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010145081-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7594979-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006113180-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011085772-A1 |
| priorityDate | 2002-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.