http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1084207-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_96154cb7302af742ff554ab3404edbf2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-16 |
| filingDate | 1978-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1980-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5032d31589cfc6c257a199bd53d3107e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8171d28c8ef4f8b6d2acef2b4f478553 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49b7eb97466bb8e7ef1eb941e2c17ef4 |
| publicationDate | 1980-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1084207-A |
| titleOfInvention | Process for the bleaching of cellulose pulp |
| abstract | PROCESS FOR THE BLEACHING OF CELLULOSE PULP ABSTRACT OF THE DISCLOSURE A process is provided for the bleaching of cellulose pulp, particularly for the peroxide bleaching of high yield pulp, which comprises forming a suspension of lignocellulosic pulp material; mixing the suspension in a mixing zone with a bleaching agent while adjusting the temperature of the pulp suspension to within the range from about + 10°C to about -10°C of a temperature within the range from about 40° to about 95°C at which bleaching is to be carried out; quickly dewatering the pulp suspension to a pulp consistency within the range from about 18 to about 50% equal to or at most 5% less than the pulp consistency of the pulp suspension charged to the mixing zone; passing the dewatered pulp suspension to the bleaching zone before its temperature can change substantially from the adjusted temperature; carrying out the bleaching with a bleaching agent at the selected bleaching temperature within the range from about 40 to about 95°C; and recycling the bleaching liquor recovered from the dewatering to the mixing zone while maintaining a temperature in the recycled liquor to bring the pulp suspension to within said range of the bleaching tempera-ture during the mixing with bleaching agent. |
| priorityDate | 1977-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.