| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-18 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-8472
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-316
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-27
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-125
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-188
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-084
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C55-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C55-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C55-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C55-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-63
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-27 |
| filingDate |
2018-06-20^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-01-26^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2021-01-26^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-110615736-B |
| titleOfInvention |
A kind of preparation method of dicarboxylic acid |
| abstract |
The invention discloses a method for preparing a dicarboxylic acid. The method comprises the following steps: 1) subjecting a raw material system containing a cyclic olefin and a monocarboxylic acid to an addition reaction under the action of an addition catalyst to generate a carboxylic acid containing The intermediate product system of the cyclic ester; 2) the intermediate product system is subjected to an epoxidation reaction under the action of an oxidation catalyst to generate a corresponding dicarboxylic acid product. In the diacid synthesis route provided by the application, the single-pass conversion rate of the addition reaction is high, and the selectivity of the corresponding carboxylic acid cyclic ester is good; in the addition-oxidation synthesis route provided by the application, the addition and oxidation reaction rates are both fast , and the corresponding diacid product yield is high. The addition-oxidation synthesis route provided in this application is suitable for continuous, stable and large-scale production of corresponding diacid products. |
| priorityDate |
2018-06-20^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |