http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2008137610-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-065 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-96 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-06 |
| filingDate | 2007-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2010-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2008137610-A |
| titleOfInvention | METHOD FOR PRODUCING ALKANDIOL AND DIALKYL CARBONATE |
| abstract | 1. A method of obtaining alkanediol and dialkyl carbonate, including:! (a) contacting the alkylene carbonate with an alkanol feed under transesterification conditions in a reactive distillation column to obtain an upstream stream containing dialkyl carbonate and alkanol and a downstream stream containing alkanediol; ! (b) recovering alkanediol from the bottom of the column; ! (c) withdrawing the dialkyl carbonate and alkanol-containing product stream from a position at the top of the column, the top being below the top of the column, and! (d) removing low boiling point compounds from the top of the column. ! 2. The method of claim 1, wherein the distance between the top and the position at which the product is withdrawn is in the range of 1 to 10 theoretical trays. ! 3. A process according to claim 1 or 2, wherein the dialkyl carbonate and alkanol-containing product stream is separated into an alkanol-rich stream and a dialkyl carbonate-rich stream. ! 4. A process according to any one of claims 1 to 2, wherein the alkylene carbonate is fed into the column at a position that is higher than the position from which a product stream containing the dialkyl carbonate and the alkanol is withdrawn. ! 5. The method of claim 4, wherein the distance between the position at which the alkylene carbonate is introduced into the column and the position at which the product stream is withdrawn is in the range of 1 to 10 theoretical plates. ! 6. A process according to any one of claims 1-2, wherein the alkylene carbonate is propylene carbonate and the alkanol is methanol. |
| priorityDate | 2006-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.