| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6fe32a7575d62b88c92b0933ac467d27
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5ca050d4f37402dc8c9df1e2a905070d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20e2e3c641b6bc284daa8570bead2bf3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2311-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2311-16 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B3-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B3-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B3-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D65-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-04 |
| filingDate |
2000-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b54d9894d883cf0c0ec0aa4b12f6b2c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_545199f16b1c9ba8cc07b78df20942f5 |
| publicationDate |
2001-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0105839-A1 |
| titleOfInvention |
Use of surface-active agents in the impurity removal process from solutions containing acetic derivatives using nano-filtration with membranes, in a process to obtain cellulose acetate |
| abstract |
This invention refers to the use of surface-active agents as a treatment of effluents containing acetic derivatives by tangential filtration characterized from aqueous solutions containing between 20 and 35 % in weight of acetic derivatives having been optionally decanted and filtered in a conventional manner in order to remove suspended impurities, which undergo the addition of one or more surface-active agents, while submitted to the tangential filtration process via polymer membranes, the cutting range of which may vary between 0.001 and 0.005 microns and feed pressure which may vary between approximately 1 and 50 barg, being that at least one of the surface-active agents present a component chosen from the lignosulfonates containing a monomeric unit indicated by formula (I). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015052255-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10889654-B2 |
| priorityDate |
1999-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |