http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112624902-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fb05d119390507a6b5a125f9048ca4be |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-76 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-10 |
| filingDate | 2020-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f79fd1c9e74cb2be004b41641805be7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ec22048d70641425bde3e73c00d49b4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72594658e0e02afd5a09b32377bacf0b |
| publicationDate | 2021-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112624902-A |
| titleOfInvention | Method for preparing ultrapure isopropanol solution and method for removing trace amount of acetone |
| abstract | The invention discloses a method for removing trace amount of acetone in isopropanol solution. Alkaline solid particles are used as adsorbent to remove acetone in isopropanol solution. The main components of the adsorbent include activated alumina and sodium bisulfite. , potassium permanganate, binder and foaming agent. The invention also discloses a method for preparing an ultra-pure isopropanol solution. The specific steps include: S1, removing acetone: using the above-mentioned acetone removing method to obtain an isopropanol solution after removing acetone; S2, removing ions: all The isopropanol solution after removing the acetone described above enters the ion adsorption tank to obtain the isopropanol solution after removing the metal ions; S3, rectification: the isopropanol solution after removing the metal ions enters the rectifying tower for rectification, and obtains the Semiconductor chip grade isopropanol solution products. The preparation method of the ultrapure isopropanol solution and the method for removing the trace amount of acetone of the invention have the advantages of simple process and suitable for industrialization, high acetone removal rate and low cost. |
| priorityDate | 2020-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.