| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e40ceab05afbe887909abf7467edd987 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-142 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-14 |
| filingDate |
1991-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1993-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_087e01d8fc6703ba09b13f1b0bcec5fe
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_976b9e202dab6aecebb853951c7e44ec
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a471cdaf88cd53b2c036093c97a8643f |
| publicationDate |
1993-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5268075-A |
| titleOfInvention |
High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process |
| abstract |
A high-efficiency wood pulp bleaching process to produce wood pulps with higher brightness at equal chlorine dioxide usage or of equal brightness at significantly reduced chlorine dioxide usage. The process comprises reacting the chlorine dioxide with wood pulp at a pH of about 5-10 for about 5-40 minutes and then acidifying the mixture to a pH of about 1.9-4.2. The mixture is then allowed to react for about 2 or more hours to complete the two-step high/low pH bleaching process. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018134525-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11384480-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013269891-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008087394-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008044988-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-013901-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8920603-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9057156-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006201642-A1 |
| priorityDate |
1989-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |