http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SE-521994-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fe0e134517a618f92e210d4699c54e1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C3-266 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C3-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C3-26 |
| filingDate | 1996-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a3d05e99d6c906515eeec3c08321bd0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0101c09bcaf28f9f68029f46b4405a3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_788be39408f528944a2d7946006ef4d0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7cec634512848748c9ce86f8c8aff8c9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db943b31757ddd2f5b447dc96e368450 |
| publicationDate | 2003-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SE-521994-C2 |
| titleOfInvention | Boiling of cellulose material using high alkali concentration at the end of boiling |
| abstract | Chemical (typically kraft) pulp having enhanced intrinsic fiber strength and bleachability compared to pulp produced using conventional or modified kraft cooking is produced by using high alkali and/or pH cooking. After being impregnated with a first cooking liquor (e.g. white liquor) having low effective alkali, the first liquor is extracted from the pulp, and it is impregnated with a second cooking liquor having an effective alkali concentration of at least 25 g/l and cooked at cooking temperature (e.g. 140 DEG -190 DEG C.) to produce a spent second cooking liquor having a residual effective alkali concentration of at least about 15 g/l, which is then extracted from the pulp. The spent second liquor may be used to preheat incoming white liquor, and then flashed and used as the first liquor. The pH of the first liquor is typically less than about 13.0, and the residual pH of the spent second liquor is about 13.0 or more. |
| priorityDate | 1995-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.