http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103061185-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-147 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-16 |
| filingDate | 2012-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103061185-B |
| titleOfInvention | Paper pulp fully chlorine-free bleaching method |
| abstract | <b> the present invention relates to paper pulp bleaching process technical field, it is a kind of paper pulp fully chlorine-free bleaching method, the first step: adopt oxygen delignification bleaching: the slurry without bleaching is sent into oxygen bleaching reaction tower, now slurry concentration is </b><bGreatT.Gre aT.GT8%</b><bGre atT.GreaT.GT to </b><bGreatT.Gre aT.GT12%</b><bGr eatT.GreaT.GT, the oxygen that purity is </b><bGreatT.Gre aT.GT93%</b><bGr eatT.GreaT.GT is added successively in oxygen bleaching reaction tower, </b><bGreatT.Gre aT.GTNaOH</b><bG reatT.GreaT.GT, </b><bGreatT.Gre aT.GTMgSOn 4 </b><bGreatT.Gre aT.GT and </b><bGreatT.Gre aT.GTHn 2 on 2 react after </b><bGreatT.Gre aT.GT.The present invention effectively realizes chlorine-free bleaching, wherein enzyme is to the degradation of lignin, in different bleaching process, the consumption of bleaching chemical can be reduced, adopt acid treatment bleached pulp, the metal ions such as the iron in bleached pulp, copper, manganese can be removed, improve pulp brightness, there is no the bleaching process that soda acid hockets, bleaching effluent can be recycled, owing to participating in bleaching without chlorine in pulp bleaching process, therefore the generation of bioxin is prevented, therefore the pollutant in waste water reduces, thus reduces environmental pollution, improves product quality.</b> |
| priorityDate | 2012-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 72.