http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104418720-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-47 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-04 |
| filingDate | 2013-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104418720-B |
| titleOfInvention | A kind of method of the recycling of PTA oxidation residua |
| abstract | The method that the invention discloses the recycling of a kind of PTA oxidation residua, following steps 1 including connected in order) PTA oxidation residua, water and oil phase extractant are mixed, after pulling an oar 0.1-5 hour, at 20-200 DEG C, extract 0.1-5 hour, obtain the material of solid phase, oil phase and aqueous phase three phase separation; 2) it is individually separated out by the solid phase of step 1) gained material, oil phase and aqueous phase; 3) by step 2) gained oil phase rectification respectively obtains benzoic acid and p-methylbenzoic acid, and the oil phase after rectification recycles; 4) by step 2) gained solid phase recrystallization obtains the mixture of M-phthalic acid and p-phthalic acid; 5) by step 2) gained aqueous phase removes after cobalt, manganese metal ion catalyst, and the acid of flash separation aromatic acid, the aqueous phase after aforementioned processing recycles. Said method can to the recycling of PTA oxidation residua system, recyclable benzoic acid therein, M-phthalic acid, p-phthalic acid and p-methylbenzoic acid component. |
| priorityDate | 2013-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.