http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108864010-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-89 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-89 |
| filingDate | 2018-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108864010-B |
| titleOfInvention | Method for preparing phthalic anhydride from 5-hydroxymethylfurfural |
| abstract | A method for preparing phthalic anhydride from 5-hydroxymethylfurfural relates to phthalic anhydride. The method comprises the steps of taking a biomass platform compound 5-hydroxymethylfurfural as a reaction substrate, mixing the biomass platform compound 5-hydroxymethylfurfural with a mixed solvent, an oxidant and a catalyst, sealing, carrying out heating reaction, cooling to room temperature to obtain a phthalic anhydride reaction solution, extracting by using an extractant immiscible with water, and recovering the extractant to obtain a white acicular product phthalic anhydride. The method for synthesizing phthalic anhydride, an important chemical intermediate, by using a renewable biomass platform compound 5-hydroxymethylfurfural as a reaction substrate, is a phthalic anhydride synthesis method with high yield, easy separation, low cost and low pollution. The catalyst has the advantages of less consumption, simple and efficient system, easy obtaining, mild reaction conditions, less byproducts, conversion rate of over 99 percent and selectivity of over 30 percent. The purity of the product after separation, recrystallization and purification is higher than 99.9 percent. |
| priorityDate | 2018-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.