http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106831472-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-05 |
| filingDate | 2017-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106831472-B |
| titleOfInvention | A kind of DMF salt bearing liquid wastes recovery process |
| abstract | The invention discloses a kind of DMF salt bearing liquid wastes recovery process and systems, the technique is divided into three sequential steps: centrifuge separation, extraction and separation and rectifying or distillation separation, the present invention is separated inorganic salts by the first two steps, and later step separates DMF and extractant.The features such as system is high with the rate of recovery, good separating effect, at low cost.The present invention has the characteristics that the high rate of recovery, recovery product purity is high, separation are thorough during recycling DMF；Solving the problems, such as generally to recycle in salt bearing liquid wastes distillation process simultaneously causes rectifying column to block；Acid adding or alkali are not needed before rectifying, DMF is neutralized into neutrality, then carry out subsequent processing again, greatly simplify processing technological flow, mitigate processing cost recovery. |
| priorityDate | 2017-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.