http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2150381-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3c880cb475a05c4c034f0ba2c49cd4e0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79cbb9f87b30f4e71aae70684a99180e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C3-022 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C1-02 |
| filingDate | 1993-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d7fff83fdc112ccedef5f32d8a0d5ae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b6abf9c85d1696e07b51ff0f8790aae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a37aa7e0eaac6faff8b7921507a1b3d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c99efb83ad9b36988d2d1e05534e3e1 |
| publicationDate | 2004-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2150381-C |
| titleOfInvention | Viscose production process |
| abstract | The present invention relates to a process for producing viscose pulp from lignocelluloses, such as hardwood, softwood or annual plants, in which process the lignocellulose is treated in a digester at first with saturated steam to prehydrolyze hemicelluloses and subsequently, without flashing, with hot black liquor (HSL) of a preceding sulfate pulp digestion as well as, if desired, under addition of fresh white liquor (WL) to neutralize the acidic reaction products formed, neutralization liquor (NL) thus being formed in the digester. Upon addition of the amount of alkali required for delignification in the form of fresh white liquor (WL), if desired, in combination with a displacement of neutralization liquor (NL) and temperature adjustment, digestion then will take place with or without temperature gradient. When reaching the desired degree of digestion, digestion is terminated by displacement of the hot black liquor (HSL) with cold alkaline washing filtrate (WF), at the same time the pulp is freed from still adhering lignin degradation products, and the thus obtained pulp is discharged from the digester at a temperature of below 100°C. |
| priorityDate | 1992-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.