http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103641687-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_23f0ca3d8f3c3ae66bef87435fbe1ad7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-10 |
| filingDate | 2013-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b40752411bb1b2daab87ec7557be9039 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75303d2936604e368119e7b93da142d7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ab779203fb1c2a29092e68c1a5c76f6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ff0892f4c0ed81e6be3f1a3a8d44b0d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_474b8b26dae962b6abb569e3ccf3d995 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16a83ba8a4109399d72b75817eec3615 |
| publicationDate | 2015-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103641687-B |
| titleOfInvention | Preparation method of phloroglucinol |
| abstract | The invention discloses a preparation method of phloroglucinol, which comprises the following steps: dissolving resorcinol in reaction solvent, then adding an N-bromosuccinimide solution, heating to perform bromination reaction, and then treating to obtain 4-bromoresorcinol; adding the obtained 4-bromoresorcinol into a container, adding reaction solvent, strong alkali and a catalyst, heating to perform hydrolysis reaction, and then treating to obtain a phloroglucinol salt solution; and adding hydrochloric acid into the phloroglucinol salt solution to regulate the pH value and precipitate solid, filtering to obtain the solid phloroglucinol crude product, and finally purifying to obtain the phloroglucinol product. According to the preparation method, the low-price accessible resorcinol is used as the raw material and is subjected to bromination, strong alkali hydrolysis and acidification, thus preparing the phloroglucinol. According to the invention, the reaction time is shortened, the production cost is lowered, and remarkable economic benefits are achieved. By preparing the phloroglucinol through the preparation method, the yield is up to 70% or above, and the purity of the prepared product is up to 99.9% or above. |
| priorityDate | 2013-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 67.