http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108786695-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D1-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D1-0082 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J3-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J4-001 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-0053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-0013 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D1-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J4-00 |
| filingDate | 2018-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108786695-B |
| titleOfInvention | Reaction separation method of polyacrylamide type ion retention aid |
| abstract | The invention provides a reaction separation method of a polyacrylamide type ion retention aid, which comprises the following steps: starting the polymerization reaction after the addition of the raw materials in the reactor; when the polymerization reaction in the reactor enters an initial stage, vacuumizing the reactor, and maintaining the vacuum degree in the reactor in a micro-negative pressure state; when the polymerization reaction in the reactor enters a high reaction rate stage, the vacuum degree in the reactor is raised to be maintained in a medium negative pressure state, and the temperature fluctuation and the heating rate in the reactor are controlled; when the polymerization reaction in the reactor enters the later reaction stage, reducing the vacuum degree in the reactor to a state of maintaining the micro negative pressure, and controlling the temperature fluctuation in the reactor; until the reaction is complete. The invention effectively solves the problems that the polyacrylamide type ion retention aid is sensitive to the operation temperature, the reaction operation temperature is not easy to control, the side reactions are more, and the product yield is low. |
| priorityDate | 2018-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.