http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112707794-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-80 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-80 |
| filingDate | 2020-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112707794-B |
| titleOfInvention | Method for separating propanol in by-product of Fischer-Tropsch synthesis |
| abstract | The present invention relates to the technical field of separation of propanol, in particular to a method for separating propanol in a Fischer-Tropsch synthesis water-phase by-product, the method comprising: (1) in the presence of an extractant, separating the Fischer-Tropsch synthesis water-phase by-product Extractive rectification is carried out to obtain crude ethanol and mixed fractions; (2) mixed fractions are subjected to regeneration and rectification to obtain crude propanol-1 and extractant solution; (3) crude propanol-1 is carried out at 80-115 ℃ Depropylation and rectification are carried out to obtain crude propanol-II and impurities before propyl; (4) crude propanol-II is subjected to deweighting rectification at 95-120° C. to obtain refined propanol. The invention destroys the azeotrope formed by water, ethanol, propanol and other impurities through extractive rectification, so that ethanol is separated from propanol; by setting up depropylation rectification, the azeotrope formed by water, propanol and some impurities is utilized , the light components are effectively removed from the propanol; the separation of the propanol and the heavy components is achieved by deduplication rectification, and the purified propanol with a purity of more than 98.5% is obtained. |
| priorityDate | 2020-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.