http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109748403-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B3-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F5-10 |
| filingDate | 2018-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109748403-B |
| titleOfInvention | High-molecular scale inhibitor for inhibiting formation of calcium sulfate scale and preparation method thereof |
| abstract | The invention relates to a high molecular scale inhibitor for inhibiting formation of calcium sulfate scale and a preparation method thereof, wherein the high molecular scale inhibitor is a polymer obtained by taking a citric acid aqueous solution or a sodium citrate aqueous solution or a mixture of the citric acid aqueous solution and the sodium citrate aqueous solution as raw materials through electrolytic polymerization; the number average molecular weight of the polymer is more than 7500; the preparation method comprises the steps of adjusting the pH value of a reaction raw material to 1-13; adding reaction raw materials into a reactor, immersing a metal electrode into reaction liquid to form an electrochemical reactor system, and performing electrochemical polymerization reaction by adopting a direct-current power supply; adjusting the pH value of the reaction solution to be neutral, and then performing dialysis treatment, evaporation solvent removal water treatment and drying treatment on the reaction solution to obtain the high-molecular scale inhibitor. Compared with the prior art, the method has the advantages of good scale inhibition effect on calcium sulfate scale, cheap and easily-obtained preparation raw materials, no toxicity, no harm, no use of chemical initiators and catalysts in the preparation process, simple steps, easy operation and control and the like. |
| priorityDate | 2018-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.