http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110523440-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J49-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J47-026 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J49-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J47-026 |
| filingDate | 2019-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110523440-B |
| titleOfInvention | Desalination purification method of water-soluble chitosan derivative |
| abstract | The invention discloses a desalination purification method of a water-soluble chitosan derivative, which comprises the following steps: washing the water-soluble chitosan derivative by using an ethanol solution, and washing off the salt in the product; centrifuging the mixed system, delivering the supernatant (containing a large amount of salt) to an anion-cation exchange column for anion-cation exchange, and delivering the solid phase to a stirring kettle for secondary washing; adding quicklime into the ethanol solution after the anion-cation exchange resin to remove most of water, sending the regenerated ethanol to a stirring kettle, adding proper water for secondary washing, repeating the process for multiple times until the conductivity of the supernatant is less than 100 mu s/cm, and by the combined process, the salt removal rate in the water-soluble chitosan derivative reaches more than 95%, the repeated utilization rate of the ethanol is improved, and the cost is greatly saved. |
| priorityDate | 2019-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.