| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9cf442581c4ec5e4acf267e0e3b9bd57 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C3-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C3-20 |
| filingDate |
1973-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1975-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e44385ea3de3ecec7cf530e5963c1d64 |
| publicationDate |
1975-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3887426-A |
| titleOfInvention |
Process for producing cellulose pulp by digestion with a diol or triol solvent and an aniline or phenol salt |
| abstract |
Wood chips are digested at a temperature above 100*C for about 30 minutes to 3 hours in contact with a solution of an aniline salt of an alkali metal or alkaline earth metal or sodium phenate in a solvent which boils above 100*C at atmospheric pressure, such as ethylene glycol. The cellulose pulp is then separated from the dissolved lignin. The dissolved lignin may be precipitated and removed from the solvent and the solvent may then be recycled, so that there is no waste spent liquor. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0041401-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4594130-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2021230375-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4100016-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10920372-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4017642-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2019136448-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0763622-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4135967-A |
| priorityDate |
1969-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |