| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_17f65bd3f61a68a528c21743e4bb7166 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-1005 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-10 |
| filingDate |
1993-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78392b56c4bb0ddee8bd4015bc276625
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b4a901f796e9721c6bb25e4089b6d5cb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fcc82856660829baad7782d910b659f4 |
| publicationDate |
1993-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
SK-4793-A3 |
| titleOfInvention |
Process for delignifying raw cellulose |
| abstract |
A process for delignifying raw cellulose which comprises a preliminary treatment for impregnating raw cellulose with a monopersulphuric acid solution, a successive filtration without washing with recycle of the filtered liquid to the first step, and a treatment, at low temperature and in alkaline solution at a pH higher than 9, of the previously impregnated raw cellulose in order to permit the reaction of the monopersulphuric acid with the lignin contained in the raw cellulose. |
| priorityDate |
1992-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |