| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-1089 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-10 |
| filingDate |
2003-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_542faf93b9a18c321aeede2d1eeb2f53 |
| publicationDate |
2004-01-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2004000380-A1 |
| titleOfInvention |
Method for brightening pulp with hydrosulfite solution |
| abstract |
A method for brightening pulp at a pH from 4.5 to 9. The method comprises the steps of: (a) combining an alkali metal borohydride, an alkali metal hydroxide, an alkali metal bisulfite and phosphoric acid to form a reducing solution; and (b) adding the reducing solution to a pulp slurry in an amount from 0.1% to 4% of hydrosulfite based on dry pulp fiber. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7993622-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010181531-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004117914-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010224333-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004230298-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010104725-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7163564-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9932709-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008135631-A1 |
| priorityDate |
2002-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |