http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2647475-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bd928d39a727cca6d7a3cbd99d60b5f5 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-1042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-147 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-163 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-144 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-14 |
| filingDate | 2007-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b64ccb6990de69efd96ecc5996627647 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfe5f914689e24bb9fd96f8ce94d1f78 |
| publicationDate | 2007-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2647475-A1 |
| titleOfInvention | Bleaching process of chemical pulp |
| abstract | A process for the bleaching of chemical pulp, wherein the initial bleaching of the pulp comprises a first chlorine dioxide treatment (D0) and a following alkaline treatment with oxygen and hydrogen peroxide (EOP), which stages are separated from each other with a washing stage, and a treatment of the pulp to reduce the content of transition metals of the pulp prior to said peroxide treatment. The process is characterized in that alkali is added to the pulp after addition of chlorine dioxide in the D0 stage to adjust the pH of the pulp to neutral or basic (N stage) prior to the washing stage following the chlorine dioxide stage, whereby the initial bleaching comprises the sequence D0N EOP. |
| priorityDate | 2006-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.