http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2125625-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3fbc0909ebea3ec19d4afa35b8fce91c http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9d14495964f30fe43fc5d793d883c049 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C1-00 |
| filingDate | 1997-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1999-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a30eb97c3c81663b1fcf7259749a83ad |
| publicationDate | 1999-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2125625-C1 |
| titleOfInvention | Cellulose production process |
| abstract | FIELD: pulp-and-paper industry. SUBSTANCE: cellulose is impregnated with sodium sulfite and subjected to preliminary hydrolysis at 170-175 C for 60-120 min until pH 6.0-6.5 is attained. This operation is followed by alkaline cooking with sulfate or soda lye. Sodium sulfide is used in the form of solution consumed in quantity 2.4-3.6 the weight of absolutely anhydrous raw material. EFFECT: improved delignification and reduced sulfur- containing waste due to reduced sulfide uptake. 3 cl, 2 tbl |
| priorityDate | 1997-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.