Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_31f87c170ea6e478544c388bd11bb684 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S162-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-64 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C5-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0203 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-083 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C5-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A62D3-00 |
filingDate |
1991-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
1991-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e856b8071a736961940b5adbb64ea402 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fccb4e8098ec4be5b217840fac7d4a4d |
publicationDate |
1991-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-5074958-A |
titleOfInvention |
Method for removing polychlorinated dibenzodioxins and polychlorinated dibenzofurans and stickies from secondary fibers using supercritical propane solvent extraction |
abstract |
A process for removing stickies and/or PCDD's and PCDF's from cellulose-containing fibers such as waste paper is provided. The process comprises contacting the fibers with supercritical or near supercritical propane for a period of time sufficient to extract a substantial portion of the stickies and/or PCDD's and PCDF's without substantially damaging the fibers. Extraction efficiencies of up to 95% for PCDD's or PCDF's and of about 70% to 95% for stickies have been achieved with the technique. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6183521-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8096064-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5476975-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2876203-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5364475-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007227945-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007227944-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5698829-A |
priorityDate |
1990-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |