http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107297195-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2220-4806 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2220-4812 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2220-42 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-041 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-281 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28009 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-10 |
| filingDate | 2017-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107297195-B |
| titleOfInvention | Magnetic defluorinating agent and preparation method thereof |
| abstract | The invention relates to a magnetic defluorinating agent which comprises a substrate, magnetic particles distributed in the substrate and hydrotalcite connected with the substrate through chemical bonds, wherein the substrate is silicon dioxide, the magnetic particles are ferroferric oxide, and the chemical bonds are silicon-oxygen bonds. The invention also provides a preparation method of the magnetic fluorine removal agent, which comprises the following steps: mixing ferroferric oxide and nitric acid in water uniformly, adjusting the pH value to 1-2, adding ammonia water and sodium silicate into the mixture, and reacting at the temperature of 60-70 ℃ to obtain silicon dioxide coated ferroferric oxide; uniformly mixing magnesium salt and salt of trivalent metal element in water, adding the uniformly mixed solution into an aqueous solution of alkali, and adjusting the pH to 9-10 to obtain hydrotalcite; and uniformly mixing the silicon dioxide coated ferroferric oxide and the hydrotalcite in water, and reacting at the temperature of 60-80 ℃ to obtain the magnetic defluorinating agent. The defluorinating agent has large adsorption capacity, can be repeatedly used for many times, still has good adsorption effect after being used for many times, has simple preparation process and short period, has mild condition and easily obtained raw materials. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-4201992-A1 |
| priorityDate | 2017-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.