| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fb78b459e21bb4fd52850a12cab27387 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-1089 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-10 |
| filingDate |
2003-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_308e00f7bb0137db08e24e719dc3446a |
| publicationDate |
2004-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1375735-A1 |
| titleOfInvention |
Method for brightening pulp with hydrosulfite solution |
| abstract |
A method for brightening pulp at a pH from 4.5 to 9. The methodncomprises the steps of: (a) combining an alkali metal borohydride, an alkalinmetal hydroxide, an alkali metal bisulfite and phosphoric acid to form a reducingnsolution; and (b) adding the reducing solution to a pulp slurry in an amount fromn0.1% to 4% of hydrosulfite based on dry pulp fiber. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2150489-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2150489-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7993622-B2 |
| priorityDate |
2002-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |