http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111517920-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-146 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-82 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-04 |
| filingDate | 2020-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111517920-B |
| titleOfInvention | Process for separating tetrahydrofuran-methanol-water by three-tower batch rectification |
| abstract | The invention relates to a process for separating tetrahydrofuran-methanol-water by three-tower intermittent rectification, which utilizes the characteristic that a tetrahydrofuran-methanol-water ternary mixture forms two binary azeotrope systems under different pressures and the azeotropic composition changes, and realizes the separation of complex ternary systems in small-batch production by adopting a mode of matching three rectification towers for operation. The mass fraction of the separated tetrahydrofuran liquid is more than 99.9 percent; the mass fraction of the methanol liquid is more than 99.9 percent; the mass fraction of water is more than 99.9%. The invention provides a novel batch rectification process, which does not need to introduce a third component, has low process load and saves cost, and realizes the high-efficiency recovery of methanol and water and reduces energy consumption by effectively dividing the components of a liquid phase extracted from the bottom of a tower while ensuring the separation of high-purity tetrahydrofuran. |
| priorityDate | 2020-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.