| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_76fe03c07c891ebcf8ca19f97c005b58 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-103
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2001-422 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-18 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J41-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J41-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J41-08 |
| filingDate |
2021-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0ca1e59598fc843b36c5b2679e97354
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aed583529898600090c41ac5b02885a0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae03b9fcb3877a4d4b6c680a1640945f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc72c6c35bd43543ba8e0a8be41aac39 |
| publicationDate |
2021-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-113210023-A |
| titleOfInvention |
A kind of biochar-based anion exchanger and its preparation method and application |
| abstract |
The invention discloses a biochar-based anion exchanger and a preparation method and application thereof, including S1: performing a pyrolysis reaction of agricultural wastes in an oxygen-limited or anaerobic environment to obtain biochar, and then performing oxidation treatment to obtain hydroxylation Biochar; S2: Put the hydroxylated biochar into N-N dimethylformamide solution to swell, and then slowly add epichlorohydrin solution to carry out etherification reaction; S3: The reaction solution after etherification reaction in step S2 The ethylenediamine solution is dropped into the middle, and then the amination reagent is dropped dropwise to carry out the amination reaction. After the amination reaction, the solid substance is filtered out, washed and dried to obtain the quaternary ammonium biochar. The preparation method of the invention prepares the biochar-based anion exchanger through oxidation reaction, etherification reaction and quaternization reaction, solves the problem of difficult grafting of quaternary ammonium groups on the surface of biochar subjected to high temperature pyrolysis, and realizes the grafting of high-density quaternary ammonium groups , which can efficiently remove anionic pollutants in water. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114570335-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114057528-A |
| priorityDate |
2021-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |