| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bf5eafa2bfc20f349c606cd4b21e643c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-143 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-1047 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-10 |
| filingDate |
1997-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2001-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb823fd208c870f03faf95a597c4a36e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b74fce0dc3b853761342dc2b56a62e1 |
| publicationDate |
2001-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6193837-B1 |
| titleOfInvention |
Preparation of brightness stabilization agent for lignin containing pulp from biomass pyrolysis oils |
| abstract |
A process for producing a brightness stabilization mixture of water-soluble organic compounds from biomass pyrolysis oils comprising:a) size-reducing biomass material and pyrolyzing the size-reduced biomass material in a fluidized bed reactor;b) separating a char/ash component while maintaining char-pot temperatures to avoid condensation of pyrolysis vapors;c) condensing pyrolysis gases and vapors, and recovering pyrolysis oils by mixing the oils with acetone to obtain an oil-acetone mixture;d) evaporating acetone and recovering pyrolysis oils;e) extracting the pyrolysis oils with water to obtain a water extract;f) slurrying the water extract with carbon while stirring, and filtering the slurry to obtain a colorless filtrate;g) cooling the solution and stabilizing the solution against thermally-induced gelling and solidification by extraction with ethyl acetate to form an aqueous phase lower layer and an organic phase upper layer;h) discarding the upper organic layer and extracting the aqueous layer with ethyl acetate, and discarding the ethyl acetate fraction to obtain a brown-colored solution not susceptible to gelling or solidification upon heating;i) heating the solution to distill off water and other light components and concentrating a bottoms fraction comprising hydroxyacetaldehyde and other non-volatile components having high boiling points; andj) decolorizing the stabilized brown solution with activated carbon to obtain a colorless solution. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9422478-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9422485-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113996078-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10640719-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10570340-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10400175-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10794588-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10400176-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10948179-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9120989-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9120988-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006119219-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9120990-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10041667-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10563127-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8864999-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10633606-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9044727-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9410091-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011123407-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9969942-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9109177-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007141660-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8524087-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9347005-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9631145-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9102888-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101709223-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011201854-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9102890-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11781077-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9102889-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101709223-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10982152-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9951278-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9127208-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11028325-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018015768-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11466220-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8961743-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10975315-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11421165-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10544368-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9670413-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011146141-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006119219-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10337726-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011146145-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9127224-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9127223-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9809564-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8404910-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9441887-B2 |
| priorityDate |
1997-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |