http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110894259-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F251-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F251-00 |
| filingDate | 2019-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110894259-B |
| titleOfInvention | Water-absorbent resin suitable for high-concentration brine and preparation method thereof |
| abstract | The invention discloses a water-absorbent resin suitable for high-concentration brine and a preparation method thereof. The preparation method of the water absorbent resin comprises the following steps: 1) placing starch in water for gelatinization to obtain gelatinized starch; 2) adding a tertiary amine monomer, unsaturated acid and a cross-linking agent into the gelatinized starch, stirring, adding an initiator after dissolution, uniformly stirring, introducing nitrogen, evacuating, sealing, and reacting at constant temperature; 3) and taking out the product after the reaction is finished, shearing and granulating, soaking the product in absolute ethyl alcohol or acetone, taking out the product and drying the product to obtain the catalyst. According to the invention, the tertiary amine monomer with a specific molecular structure is introduced, so that the obtained water-absorbing resin is not adhered, flocculated, coagulated and hardened in high-concentration saline (the salt mass concentration is 3-10%), and the water-absorbing resin has a good water-absorbing effect, can be naturally degraded, and is expected to be used in the fields of industrial and agricultural high-salt-content sewage treatment, environmental protection and the like. On the other hand, the method is simple and easy to operate. |
| priorityDate | 2019-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.