http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2170398-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44467d2025f997d6944ffe2ee6c14979 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C11-0042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-153 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-1005 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-147 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-153 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-10 |
| filingDate | 1994-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b473b77e1c6c9c50b812a76b4ceb7a84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a62f5276a39dc7ed4bf38bf156a43571 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2bf85fe4d23123ac43ce20c6d837a60d |
| publicationDate | 1995-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2170398-A1 |
| titleOfInvention | Improved method for bleaching lignocellulosic pulp |
| abstract | The present invention is directed to a method for treating lignocellulosic pulp prior to a bleaching step to minimize consumption of bleaching agent during the bleaching step which comprises the steps of (a) contacting the lignocellulosic pulp with an aqueous solution having a pH of at least about 5 and less than about 11 for a time sufficient to dissolve lignin from the pulp to form a reduced-lignin pulp and a lignin-rich solution, (b) separating the reduced-lignin pulp from the lignin-rich solution, and (c) bleaching the reduced-lignin pulp with the bleaching agent; wherein the time sufficient to dissolve lignin from the pulp to form a reduced-lignin pulp and a lignin-rich solution in step (a) is an amount of time which results in a decrease in bleaching agent consumption in step (c) in the range from about 10 % to about 20%. |
| priorityDate | 1993-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.