http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6317901-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dcc201f4fa40dd19b8d8ef8da3e9647d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B37-08 |
| filingDate | 1986-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6130c831153a0273d6a985339c2aeb64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69c4d7de49b06e11d8b109e3faa17e55 |
| publicationDate | 1988-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6317901-A |
| titleOfInvention | Purification of chitosan |
| abstract | PURPOSE: To easily purify large amount of chitosan useful as a flocculant for various dispersions and pharmaceuticals, etc., on an industrial scale, by adjusting a chitosan-containing liquid to a specific pH, thereby precipitating the chitosan from the liquid. n CONSTITUTION: A chitosan-containing liquid (e.g. a process liquid obtained by deacetylation treatment and having high impurity content) is adjusted to ≥6.0pH, preferably ≥6.5pH to obtain a precipitate. The precipitate is, if necessary, washed, dissolved usually in an acid (acetic acid, hydrochloric acid, sulfuric acid, etc., having a concentration of 0.01W3mol) and adjusted to ≥6.0pH, preferably ≥6.5pH with an alkali such as KOH to again precipitate chitosan. The purity of chitosan can be improved by repeating the above steps of precipitation, washing and dissolution. n COPYRIGHT: (C)1988,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2762087-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02174654-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0104207-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0104187-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03066682-A1 |
| priorityDate | 1986-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.