| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_929ecc3ed699d34281ac78cf7469a896
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14bf357707d1cd4b3e7e4093eb1776bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_96c2d29d3c75e894f0a488de3cb00555 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-91 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C11-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07G1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-146 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07G1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C7-00 |
| filingDate |
2010-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_792e1622727f1c246f75d807a2d29b96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_535daf7b95e9a167351800ec10649dc3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8dac1e17aad18637da0b6ee75c4d994 |
| publicationDate |
2012-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2012267064-A1 |
| titleOfInvention |
Lignosulfonate of a certain quality and method of preparation of lignosulfonate of a certain quality |
| abstract |
There is provided a process for improving the quality of lignosulfonate at least partly derived form a spent sulfite cooking liquor in at least two steps, comprising: one step in which a lignosulfonate-containing fraction at least partly derived from the spent sulfite cooking liquor is subjected to filtration using a membrane having a cut-off of 40 - 150 kD (high cut-off) at the pressure, flow rate and temperature of the step and the permeate is recovered; and another step in which a lignosulfonate-containing fraction at least partly derived from the spent sulfite cooking liquor is subjected to filtration using a membrane having a cut-off of 1 - 20 kD (low cut-off) at the pressure, flow rate and temperature of the step and the retentate is recovered. Products, uses thereof as well as a system are also provided. |
| priorityDate |
2009-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |