http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114849671-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e406a4477477e7be0c8b7239694710f8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P70-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F5-062 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-265 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F5-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-26 |
| filingDate | 2022-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c38d53017ca3f324a474d521d93d3d13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c161f6e511a8d13d7b9a55cd10ece9d5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0bf5b618bb7f19f447f4aa9242a8439 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14c58d9b41f67deaf8dd15d223059898 |
| publicationDate | 2022-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114849671-A |
| titleOfInvention | Impurity adsorbent, preparation method and method for purifying trimethylaluminum using the adsorbent |
| abstract | The invention relates to the field of purification of electronic industrial raw materials, in particular to an impurity adsorbent, a preparation method and a method for using the adsorbent to purify trimethylaluminum. The impurity adsorbent includes a silica gel powder body; an external package of the silica gel powder body It is covered with a polydopamine layer; the outer graft of the polydopamine layer is connected with a polymer segment; the polymer segment contains a nitrogen atom-containing heterocyclic group. The invention effectively improves the adsorption effect of metal ion impurities in trimethylaluminum by means of physical adsorption and chemical coordination adsorption, and can reduce the ppm level of metal ions in trimethylaluminum to ppb level. At the same time, the method for purifying trimethylaluminum in the present invention is relatively simple, and it only requires simple rectification of trimethylaluminum to remove metal ion impurities in trimethylaluminum. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115591272-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115591272-A |
| priorityDate | 2022-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.