http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H10317291-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_026917a1661e94c21035d1c5d1fa135e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-147 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-12 |
| filingDate | 1997-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_788853700b58552d64635290b5bd4ea2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d6eed868fa81130c18b91891d9914e7b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eaeff9956f24f7557bca2432764a46b1 |
| publicationDate | 1998-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H10317291-A |
| titleOfInvention | Method for bleaching lignocellulosic material |
| abstract | (57) [Problem] To control the pH in the final chlorine dioxide stage in a three-stage bleaching sequence and reduce the fluctuation, Provided is a bleaching method for suppressing a decrease in pulp strength while maintaining a high whiteness with a small amount of chlorine dioxide by maintaining an optimum pH condition. SOLUTION: The chemical pulp obtained from the lignocellulosic material is subjected to oxygen delignification treatment and then bleached in a chlorine or chlorine dioxide stage-alkali extraction / oxygen stage-chlorine dioxide stage three-stage bleaching sequence. Chlorine dioxide in the chlorine stage is added in portions, and the final pH of the chlorine dioxide stage In order to maintain 4.5 to 5.5 when the first stage is chlorine (C) and 5.5 to 6.5 when the first stage is chlorine dioxide (D), the alkali is added before adding chlorine dioxide in the latter half of the division. A method for bleaching a lignocellulosic material, characterized in that it is added. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002302888-A |
| priorityDate | 1997-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.