http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2278188-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_98ffd45995c1c594d10ec111b8fb0e6f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-1036 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-147 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-1084 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-147 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-10 |
| filingDate | 1998-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2003-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_507a7421b6376e3569342f34659100cf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5509a0fc78b562a26658cb17a0730b32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7375c941e8ae3da7b70d3d6311993f2a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88f11ed8198e151f11b19afb869f271b |
| publicationDate | 2003-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2278188-C |
| titleOfInvention | Oxygen delignification process of pulp |
| abstract | The present invention is concerned with a single stage method delignificatio n process for pulps, preferably sulphite pulps. The improvement to conventiona l oxygen delignification process comprises in situ addition of a reducing agen t substantially non-reactive with oxygen. The end result is a pulp having enhanced strength properties and higher viscosity. Sodium borohydride is the preferred reducing agent, and MgO is the preferred alkali source. Similar results can be obtained with a two-stage oxygen delignification wherein the pulp is treated with the reducing agent in the first stage, and then washed and pressed conventionally before proceeding with the oxygen delignification in a second stage. |
| priorityDate | 1997-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.