http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104557433-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-08 |
| filingDate | 2013-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104557433-B |
| titleOfInvention | The method of multistage suspension crystallization production paraxylene |
| abstract | The present invention relates to a kind of method of multistage suspension crystallization production paraxylene, the problem of mainly solving big energy consumption present in prior art, difficult crystal washing, product quality and unstable yield, the present invention uses two-stage crystallization process, isolates part para-xylene product by the higher first degree crystalline process of temperature first；Second level crystallization process is recycled to isolate remaining paraxylene, and the crystal of secondary crystallization process is collected using the magma groove with thickening function, pulping and washing and heating aging are carried out using the higher first degree crystalline mother liquor of the temperature secondary crystallization crystal relatively low to temperature, product purity has been ensured, remaining para-xylene product is obtained；The magma of magma trench bottom sends into the technical scheme that solid-liquid separator is separated after thickening, the problem of preferably solving big energy consumption present in prior art, difficult crystal washing, product quality and unstable yield, available in paraxylene crystallization production. |
| priorityDate | 2013-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.