http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2011120193-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-96 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/C07C68-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-08 |
| filingDate | 2009-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2012-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2011120193-A |
| titleOfInvention | METHOD FOR REMOVING ALKANOL IMPURITY FROM ORGANIC CARBONATE CEILING |
| abstract | 1. A method of removing alkanol impurities from a stream containing organic carbonate and an alkanol impurity, comprising contacting the stream with a catalyst to influence the reaction of the alkanol impurity with organic carbonate. The method of claim 1, wherein the organic carbonate is di (C-C) alkyl carbonate, preferably diethyl carbonate; or di (C — C) aryl carbonate, or (C — C) alkyl (C — C) aryl carbonate; or cyclic (C — C) alkylene carbonate, or a mixture thereof. 3. The method according to claim 1, wherein the alkanol impurity is etheroalkanol, more specifically alkoxyalkanol, most particularly 2-ethoxyethanol. The method according to claim 3, wherein the organic carbonate is diethyl carbonate and the alkanol impurity is 2-ethoxyethanol. The method of claim 1, wherein the catalyst is a heterogeneous catalyst, preferably a heterogeneous catalyst containing zinc. The method according to claim 1, where the stream containing an organic carbonate and an alkanol impurity is obtained by a method for producing a dialkyl carbonate and an alkanediol, comprising: (a) reacting an alkylene carbonate and an alkanol in the presence of a transesterification catalyst to obtain a product mixture containing non-converted alkylene carbonate, non-converted alkanol, dialkyl carbonate , alkanediol and an alkanol impurity; (b) separating unconverted alkylene carbonate and alkanediol from the product mixture to obtain an overhead stream containing unconverted alkanol, dial ilkarbonat and the alkanol impurity; (c) regeneration alkanediol and (d) selection unconverted alkanol from the top stream containing unconverted alkanol, dialkyl carbonate and the alkanol impurity obtained in step (b) to produce a bottom stream containing dialkyl |
| priorityDate | 2008-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.