| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c003f8503ad991f848be5e880dcd1fc9 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C7-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C3-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C3-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C3-24 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C3-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C3-24 |
| filingDate |
2016-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb13b9fc77e9812a4308914bdac742be
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8335ebbf07eaefad0dff511c4c319bbf |
| publicationDate |
2017-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2017022663-A1 |
| titleOfInvention |
Kraft cooking method using polysulfide cooking liquor |
| abstract |
The method is for the preparation of kraft pulp with increased pulping yield from lignin-containing cellulosic material using polysulfide cooking liquor. In order to increase carbohydrate stabilization and hence the yield from a kraft cooking process a first impregnation stage using polysulfide cooking liquor is implemented at high alkali and polysulfide concentration and at a low temperature. Knots are added to a high-pressure conduit extending between an impregnation vessel and a digester. |
| priorityDate |
2011-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |