http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102656136-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0b009665becdebf38c989424b45622b6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-96 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-08 |
| filingDate | 2010-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_58d56edb35cd1ba44a41f4227a019474 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac4b0fa956d8c9b5fabba7adfc82c6c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13844ae97c4a9f29da4887ed3292fc9e |
| publicationDate | 2014-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102656136-B |
| titleOfInvention | Process for the production of high-purity dimethyl carbonate |
| abstract | A process for the production of high-purity dimethyl carbonate, comprising: subjecting at least one commercial grade dimethyl carbonate, having a chlorine content higher than 1 ppm, to cooling, operating at a cooling temperature ranging from +60 DEG C to -5 DEG C, and at a cooling rate ranging from 0.5 DEG C/hour to 2 DEG C/hour, so as to obtain dimethyl carbonate in solid form; subjecting said dimethyl carbonate in solid form to a first heating, operating at a heating temperature ranging from -5 DEG C to +6 DEG C, and at a heating rate ranging from l DEG C/hour to 5 DEG C/hour, so as to obtain a mixture comprising dimethyl carbonate in solid form and a predetermined amount of dimethyl carbonate in liquid form; separating said dimethyl carbonate in liquid form from said mixture; subjecting said dimethyl carbonate in solid form to a second heating, operating at a heating temperature ranging from 20 DEG C to 40 DEG C, so as to obtain dimethyl carbonate in liquid form, said dimethyl carbonate in liquid form having a purity degree higher than 99.99% and a chlorine content lower than or equal to 1 ppm and use of the obtained dimethyl carbonate as organic solvent for the production of the electrolyte of lithium batteries. |
| priorityDate | 2009-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.