http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108467510-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-36 |
| filingDate | 2018-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108467510-B |
| titleOfInvention | Polycrystalline silicon impurity-removing chelate resin and synthetic method thereof |
| abstract | The invention discloses a polycrystalline silicon impurity-removing chelate resin and a synthesis method thereof, wherein primary amine resin wet balls are reacted with chloroacetic acid solution to generate amino carboxylic acid resin balls; then, carrying out acylation reaction on the aminocarboxylic acid resin ball and oxalyl chloride in dichloroethane solution, and introducing a-COCl functional group to obtain an aminoacyl chloride resin ball; then, continuously carrying out ammoniation reaction on the resin ball containing the amino acyl chloride and diethylamine to obtain macroporous chelate resin containing the amino amide; and finally, drying the prepared finished product by microwave to obtain the impurity-removed chelate resin. The method thoroughly reduces the content of boron and phosphorus, has simple operation method and long service cycle, can greatly improve the quality of trichlorosilane, and ensures the stable quality of polycrystalline silicon products. |
| priorityDate | 2018-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.