http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108250256-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2333-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-325 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H13-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H13-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate | 2018-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108250256-B |
| titleOfInvention | Method for preparing punicalagin crystal powder |
| abstract | The invention relates to a method for preparing high-purity punicalagin crystal powder. The invention firstly prepares TiO 2 The composite copolymer microspheres have the function of efficiently separating polar organic compounds, and effectively separate organic compounds with polyhydroxy in natural products; second use of TiO 2 The composite copolymer microspheres are used as fillers, the crude punicalagin with the purity of 20-40% by mass fraction is primarily purified to 75-80% by using a normal pressure chromatography, the treatment flux is large, and the time consumption is short; and finally, dissolving the purified punicalagin sample by using a certain amount of mixed solution of methanol, acetone, diethyl ether and ethyl acetate, adding trichloromethane, centrifuging, taking the supernatant, placing the supernatant in an environment at 4 ℃, and crystallizing to obtain a 97-98% purity punicalagin crystal. The invention obtains the high-purity punicalagin crystal powder by using the crystallization method for the first time, has simple process, less consumption of organic solvent, large sample processing flux, short time consumption and low required equipment cost, solves the difficulty of industrial preparation of the high-purity punicalagin crystal and can be industrially popularized. |
| priorityDate | 2018-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 88.