http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102826956-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_48df6bc4ebf937c660e36d97dec66663 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-34 |
| filingDate | 2012-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c77667c558cbf95829e4cabf4f498c2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5e99478b26e92d3a7369a8e6a4abb45 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c71a740aad93f8812da6a728082f6c58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af4996c97e7e9da9ce1e986d8714afa5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b0796e800f01cca9ccc8de161a26175 |
| publicationDate | 2014-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102826956-B |
| titleOfInvention | Method for separating methyl propionate-methanol-water system by integration of salt-effect extraction and rectification |
| abstract | The invention relates to a method for separating a methyl propionate-methanol-water system by integration of salt-effect extraction and rectification, which comprises the following steps: carrying out salt-effect extraction on a methyl propionate-methanol-water system by using saturated brine as an extractant; after the extraction separation, sending the water phase on the tower bottom of an extraction tower T1 to a methanol recovery tower T3, obtaining methanol of which the mass percent is higher than 99.98% from the T3 tower top and a salt concentrated solution from the T3 tower bottom, and returning the concentrated solution to the extraction tower T1 to be mixed with the extractant for cyclic use; and sending the organic phase from the tower top of the extraction tower T1 to a methyl propionate concentrating tower T2 for further methyl propionate concentration, obtaining a mixture of methyl propionate, methanol and water from the T2 tower top, sending the mixture to the extraction tower T2 to be mixed with the raw material solution for re-extraction, and obtaining methyl propionate of which the mass percent is higher than 99.97% from the T2 tower bottom, wherein the total yield is up to more than 89%. The invention has the advantages of simple technique, high separation efficiency, low production cost, environment friendliness, basically no discharge in the whole process, and the like. |
| priorityDate | 2012-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.