http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102432584-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7bac3ce049e2c8ac7192db1c9b5b6440 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-72 |
| filingDate | 2011-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be7faeff6584e57c546ed38b8a14d0c9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cfc74e857513b05139a34e40ca0ab58a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_581abef3952da5f4b6399155f7eca696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b223a99e905bf030e2416478383da9a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_425e467803ed40d6aca133bd275631b7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b795c2645880e3148e5fd7b7d56ce9ff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_268242bf2c2bb6655a7ea1dbac95a1d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ffda2e99485fc31b9ca15fd94ae532a1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8de6e07b6019374d9c1b3b56c70724a8 |
| publicationDate | 2013-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102432584-B |
| titleOfInvention | Method for preparing high-purity natural vitamin E monomers by separating mixed tocopherol |
| abstract | The invention discloses a method for preparing high-purity natural vitamin E monomers by separating mixed tocopherol. The method comprises the following steps of: fully dissolving the mixed tocopherol in a mobile phase solvent I so as to obtain a loading solution; adding the loading solution into a reversed-phase chromatographic column; adding a mobile phase solvent II into the chromatographic column; and performing step-by-step collection to obtain effluent I of which the purity of d-alpha-tocopherol is more than or equal to 90 percent, effluent II of which the purity of d-gamma-tocopherol is more than or equal to 90 percent and effluent III of which the purity of d-delta-tocopherol is more than or equal to 85 percent. By the method, the one-time column loading and separation of raw materials can be realized under normal pressure so as to obtain three natural vitamin E monomers. A filler in the chromatographic column can be regenerated, the used solvents can be recovered, the cost is reduced, the method is convenient to operate, and the purity is high. |
| priorityDate | 2011-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.