http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102408314-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cef46647bdb1d15d3f4ea55d4dc728dd |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-21 |
| filingDate | 2011-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a70d155eaa2bc6e82745cb1e34cca00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c47a6b0732e9cc440f72e8247bfd5d5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4a5da1cb32e35bf90f33e9a54cd9fb9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_674918303602a5e95570d35e4290092d |
| publicationDate | 2013-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102408314-B |
| titleOfInvention | Method for preparing high-purity magnolol and magnolol |
| abstract | The invention discloses a method for preparing high-purity magnolol and magnolol. The method comprises the following steps: preparing a Magnolia officinalis bark extract by use of a weakly polar solvent under heating condition, concentrating the extract, and adopting an ethanol water precipitation method to remove partial impurities; filtering, concentrating the filtrate under reduced pressure to obtain magnolol and magnolol extractum; standing the extractum to separate out the precipitate, dissolving with a small amount of petroleum ether, filtering, washing with petroleum ether, and precipitating to obtain a solid material which is crude magnolol; and then performing selective extraction with a solvent to separately obtain magnolol and crude magnolol, and recrystallizing the crude magnolol to obtain high-purity magnolol and magnolol respectively. The technology of the method has the advantages of fewer production steps, simple equipment and operation method, short production cycle and high product yield and purity; and the method is suitable for industrial production. |
| priorityDate | 2011-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.